Method for ozonating amantadine wastewater

The invention relates to a method for ozonating amantadine wastewater, which belongs to the technical field of sewage treatment. The invention solves the problems of amantadine wastewater, including high COD and hard biodegradation. The main technical scheme is as follows: an experiment indicates that the concentration of amantadine is related to the concentration of COD within a certain range, an ozone generator is utilized to generate ozone, which is sent into an ozone reactor, the ozone and amantadine water sample sufficiently react in the ozonation contact reactor, the COD in the amantadine wastewater is degraded by controlling reaction conditions, and the change of the content of the amantadine is judged according to the change of the COD value. The design of the technical scheme is reasonable, the COD value in the water sample is greatly reduced, the technological method and the supporting requirement are simple, implementation is easy, and popularization and application are convenient ...

Admantadine waste water oxidation treatment method by Fenton reagent

The invention discloses an admantadine waste water oxidation treatment method by a Fenton reagent, which relates to a sewage treatment method. The concentration of the admantadine has the correlativity with the COD concentration, the admantadine waste water is oxidized and degraded through the Fenton reagent, H2O2 and Fe2SO4.7H2O solutions are respectively added in the waste water, the reaction temperature is regulated, the materials are fully stirred, the initial pH value of the waste water is regulated by hydrochloric acid and sodium hydroxide solution, 0.1 mon/l of sodium hydroxide solution is added after the reaction is completed, and iron and ferrous ions remained in the reaction can form ferric hydroxide precipitate, so the oxidation reaction is terminated. The technical scheme of the invention reduces the COD value of the admantadine waste water, the technical method and the matched requirements are simple, the implementation is easy, and the popularization and the application are ...

Working platform and method for conveniently assembling refrigerating box

The invention discloses a working platform and method for conveniently assembling a refrigerated container, relates to the field of working platform manufacturing, and aims to solve the technical problems that in the prior art, a working platform cannot be quickly disassembled, assembled and maintained, and meanwhile, the refrigerated container cannot be adjusted, clamped and installed. The working platform comprises an assembling working table, a lower end height adjusting assembly installed at the lower end of the assembling working table and a refrigerating box positioning and placing assembly connected to the upper end of the assembling working table. A first assembling table body is arranged in the assembling workbench, a detachable second assembling table body is arranged on the outer side of the first assembling table body, a protective placing outer frame plate arranged at the upper end of the assembling workbench is arranged in the refrigerating box positioning and placing assembly ...

Anti-seepage treatment method for constructed wetland structure

The invention relates to an anti-seepage treatment method for a constructed wetland structure. The anti-seepage treatment method comprises the following steps: spraying a polyurea anti-seepage layer according to different inflow water qualities, different inflow water pollutants varieties, different suspended particulate matter concentrations and different particle sizes, and realizing different inflow water conditions and different polyurea layer thicknesses, specifically when the inflow water pH value of the constructed wetland is 6.5-8 or the concentration of the inflow water suspended solids is lower than 20mg/L, the spraying thickness of the polyurea on the surface of the constructed wetland structure is 1-1.5mm; when the inflow water pH value of the constructed wetland is lower than 6.5 or higher than 8 or the concentration of the inflow water suspended solids is 21-50mg/L, the spraying thickness of the polyurea on the surface of the constructed wetland structure is 1.5-2mm; and when ...

Quick folding formula jack that draws in in

The utility model discloses a quick folding formula jack that draws in in, including main part and three piece at least raking struts, wherein, the upper end of main part is equipped with top and adapter, the lower extreme of main part is equipped with hydraulic drive integrated package subassembly and spirit level subassembly, the one end of raking strut and the upper end of main part link to each other, the other end of raking strut is fixed on the supporting disk subassembly, is equipped with the traction lever on one of them raking strut, be equipped with the pull rod between the lower extreme of supporting disk subassembly and main part, the pull rod passes through the quick -release round pin when folded state and the raking strut is fixed continuous. The utility model provides a quick folding formula jack that draws in in is through setting up top, adapter, hydraulic drive integrated package subassembly and spirit level subassembly for fully guarantee the requirement of minimum altitude ...

Early warning and emergency responding device and method for waterlogging of separation-system rainwater pipe networks

The invention discloses an early warning and emergency responding device and method for waterlogging of separation-system rainwater pipe networks, and belongs to the technical field of urban construction administration and maintenance. According to the device and method, a technique, based on coupling of a GIS (geographic information system) technique and an online monitoring system, for performing early warning and emergency response on waterlogging points of the separation-system rainwater pipe networks according to an optimized rainstorm intensity formula is developed; the device and method is applicable to newly-built and improved separation-system rainwater pipe networks of new and old cities; through the vectorization design of the city separation-system rainwater pipe networks and according to the GIS technique and monitoring signals fed back by online monitoring equipment, flowing conditions of rainwater in the pipelines are evaluated and verified in real time on the basis of rainfall ...

Blue algae removing agent applied to northern rivers and lakes in low-temperature environment

The invention discloses a blue algae removing agent applied to northern rivers and lakes in the low-temperature environment, belongs to the technical field of manufacture of sewage treatment drugs in the environmental protection and in particular relates to a blue algae removing agent applied to northern rivers and lakes in the low-temperature environment. The blue algae removing agent is prepared from the following substances in part by weight 0.5-5 parts of copper sulfate, 10-20 parts of aluminum sulfate, 10-15 parts of ferric chloride, 15-25 parts of calcium carbonate and 5-10 parts of magnesium carbonate, and also comprises 20-35 parts of natural granite powder; the weight ratio of a mixed drug to water is 1.3 to 1.4; the pH value is 1.5-2.0; the addition amount of the blue algae removing agent is determined according to the surface area and the pollution degree of water; the original effect can be retained after the blue algae removing agent is stored for a long time; the metamorphic ...

Method for recovering and removing nitrogen and phosphor in urine by ammoniomagnesium phosphate crystal method

The invention discloses a method for recovering and removing nitrogen and phosphor in urine by an ammoniomagnesium phosphate crystal method, relating to a method for recovering and removing the nitrogen and phosphor in urine and recovering the reaction product of the urine through urine source separation. The method for recovering and removing the nitrogen and phosphor comprises the following steps: evenly stirring the urine, regulating the pH value of the urine by utilizing NaOH solution the mass fraction of which is 10%, adding reaction precipitant, stirring, precipitating, filtering and drying to obtain the ammoniomagnesium phosphate crystal. Therefore, nitrogen and phosphor load on domestic sewage is reduced, and the product can also be utilized as manure for agriculture, so the method of the invention is a sustainable sewage disposal technology.

Integrated cyclone disinfection device containing oil pressure cabin water treatment

The invention relates to an integrated cyclone disinfection device containing oil pressure cabin water treatment. The device is intended to solve a present situation that a single treatment method cannot be suitable for ballast water treatment of a plurality of ships. A main body device, an electric motor, a rotation shaft, a impeller, an ultraviolet lamp tube, an oil separation plate and a water outlet channel consist of a cyclone device, an ultraviolet device and an oil separation device, wherein the main body device is of a rectangular anticorrosion carbon steel structure, the electric motor modifies the impeller connection by the modification in the rotation shaft and the main body device, the electric motor drives the impeller to rotate, a water flow enters from a main body device inlet, generates cyclone under rotation of the impeller, and flows out from the water channel after irradiated by the ultraviolet lamp tube on the main body device, and the oil spun out backflows to a cabin ...

Method for simultaneously realizing heavy metal harmless treatment and deep dehydration for dehydrated sludge

The invention discloses a method for simultaneously realizing heavy metal harmless treatment and deep dehydration for dehydrated sludge, and belongs to the technical field of sludge treatment and environmental protection. According to the method, sludge is subjected to deep dehydration when a sludge heavy metal harmless treatment process is performed. The method comprises the following steps: putting the sludge into a sludge cavity in a reaction device, and switching on the power; starting the reaction device, wherein the moving rates of electrodes selected under different loading voltages are confirmed according to the electro-osmosis property of the treated sludge, an anode is downwards moved at a uniform speed through the rotation of a threaded rod, the power output voltage is reduced, the constant voltage gradient between two electrodes are kept, and water removed by electro-osmosis is discharged through a bottom filter layer, and then flows into a water collection tank; after the reaction ...

Modular combined treatment technique for small-size white wine plant wastewater

The invention relates to a modular combined treatment technique for small-size white wine plant wastewater, which is suitable for treating distillatory kettle bottom water and grain steaming kettle bottom water wastewater generated by small-size white wine workshops, and treating high-concentration organic wastewater generated by small-size white wine plants by utilizing modular combined optimization. The technique comprises a physicochemical module, a biochemical module and an advanced treatment module, wherein the physicochemical module comprises a filtration-regulation-coagulation submodule and a regulation-ferric-carbon microelectrolysis submodule; the biochemical module comprises a two-stage anaerobic sludge bed, an SBR (sequencing batch reactor) and a hydrolysis and acidification submodule; and the advanced treatment module comprises an activated carbon absorption submodule and an ultraviolet disinfection submodule. The technique can enhance the effluent water quality of the small-size ...

Papermaking industry water pollution abatement process regulating and controlling method

The invention provides a papermaking industry water pollution abatement process regulating and controlling method, and relates to papermaking industry water pollution abatement processes. An evaluation index system of the papermaking industry water pollution abatement processes is determined; states of the various papermaking industry water pollution abatement processes to be evaluated are described; an ideal process state of the optimal index of the mth process is described; differences between the corresponding indexes in a matrix R0N and a matrix Rmn are described; the index weight is determined, the degrees of importance of various process evaluation indexes are described, an Euclid approach degree composite fuzzy matter-element matrix is built, and the degree of closeness of the processes to be evaluated and ideal processes is described; the evaluated processes are sorted, and a scheme is output to regulate the sewage treatment processes so that papermaking industry sewage can accord ...

Filter cloth and filter tank backwashing device

The invention relates to a filter cloth and filter tank backwashing device. According to the technical scheme, the filter cloth and filter tank backwashing device comprises a backwashing boot, air distribution branch pipes, air nozzles, an air distribution general pipe, an air inlet valve, a backwashing water pumping pipe and a backwashing pump; the backwashing boot is connected with the backwashing water pumping pipe; the backwashing water pumping pipe is connected with the backwashing pump; one air distribution branch pipe is arranged at each of the upper and lower sides of the opening of the backwashing boot; the plurality of air nozzles are arranged on the air distribution branch pipes; the air distribution branch pipes are connected with the air distribution general pipe; an air inlet valve is arranged at the air inlet end of the air distribution general pipe and is used for adjusting the air inlet amount in a backwashing process; and the air distribution general pipe is higher than ...

Integrated processing method for wastewater of small salting factory

The invention relates to an integrated device for processing wastewater of a small salting factory and an operation method. The integrated device is characterized in that an operation flow comprises a hydrolytic acidification-reflux type anaerobic/aerobic alternating reactor; an operation temperature of a hydrolytic acidification unit is 33-35 DEG C; a redox potential is between -100 mV and -300 mV; a pH value is adjusted to 6.5-7 by using sodium bicarbonate; the anaerobic section is provided with 15-25 cm thickness of rice straws are staggeredly arranged as a filler layer; and the aerobic section is filled with 2-3 cm thickness of corn cores as fillers. The integrated device is compact in structure and small in size, small in influences of salinity and load impact and stable in processing effect. The salting wastewater processed by the hydrolytic acidification-anaerobic/aerobic alternating reactor has good effluent quality and a processing effect is stable.

Salt-resistant denitriding composite inoculant, and preparation method and use method thereof

The invention belongs to the biotechnical field, and concretely relates to a salt-resistant denitriding composite inoculant, and a preparation method and a use method thereof. The salt-resistant denitriding composite inoculant is obtained by mixing Halomonas having a denitrification characteristic and having nitrite accumulation in the denitriding process, Halomonas having a denitrification characteristic and having no nitrite accumulation in the denitriding process, bacillus having a denitrification characteristic, and Halomonas having a salt resisting characteristic according to a volume ratio of 1:1:(10-20):(60-85); and by adopting the salt-resistant denitriding composite inoculant to denitride high salinity wastewater, the denitriding rate is not lower than 95%, and the treated water is discharged in a standard reaching manner. Four microbes in the composite denitriding interact with each other and influence each other, the removal rate of ammonia nitrogen and total nitrogenof the inoculant ...

Processing method and system for touch screen writing area

The invention provides a processing method and system for a touch screen writing area. The processing method for the touch screen writing area comprises the following steps: detecting a touch point input on a touch screen; expanding the writing area when the condition that the touch point is positioned on a boundary area preset in the writing area is judged according to the position of the touch point on the touch screen. By adopting the processing method and system, automatic processing of the writing area can be realized, and a good processing effect is achieved.

Printing and dyeing industry sewage treatment regulation and control method

The invention discloses a printing and dyeing industry sewage treatment regulation and control method, and relates to a printing and dyeing industry sewage treatment technology. The method comprises the following steps of determining an index system of printing and dyeing industry sewage; establishing an original data index matrix by utilizing acquired data and industry standards; performing dimensional matrix model standardization on the matrix; obtaining an optimal treatment value and a worst treatment value of each index in each sampling process by utilizing a dimensionless sample matrix; determining the weight of each index in the standardized matrix by using an entropy weight method; calculating an optimal osculating value and a worst osculating value; performing result sequencing and comparison by using an improved osculating value method; regulating a printing and dyeing industry sewage treatment process according to sequencing results obtained by the seventh step until discharged ...

Method for ozonating amantadine wastewater

The invention relates to a method for ozonating amantadine wastewater, which belongs to the technical field of sewage treatment. The invention solves the problems of amantadine wastewater, including high COD and hard biodegradation. The main technical scheme is as follows: an experiment indicates that the concentration of amantadine is related to the concentration of COD within a certain range, an ozone generator is utilized to generate ozone, which is sent into an ozone reactor, the ozone and amantadine water sample sufficiently react in the ozonation contact reactor, the COD in the amantadine wastewater is degraded by controlling reaction conditions, and the change of the content of the amantadine is judged according to the change of the COD value. The design of the technical scheme is reasonable, the COD value in the water sample is greatly reduced, the technological method and the supporting requirement are simple, implementation is easy, and popularization and application are convenient ...

Method and device of whiteboard page cutting

The invention relates to a method and a device of whiteboard page cutting. The method comprises the steps of receiving a trigger instruction for performing the whiteboard page cutting, responding to the trigger instruction to detect sliding tracks on a whiteboard page, generating subpages according to the detected sliding tracks, cutting elements of the sliding tracks passing through the whiteboard page in accordance with a preset cutting rule, and copying the cut elements to the subpages in corresponding positions. According to the method and the device, simultaneous proceeding of multiple operation modes of the whiteboard page can be realized without multiple hardware terminals; the scheme is simple; a large screen of a large flat panel is fully used; and a development demand of multi-task coprocessing is met.

Disinfecting and sterilization method of water for making ice

Method for removing heavy metal Cr from sludge by bioleaching

The invention provides a method for removing a heavy metal Cr from sludge by bioleaching, relates to technology for processing municipal solid waste, and aims to solve the problem of restriction on recycling the sludge, which contains higher heavy metal Cr content, of municipal sewage plants in agriculture and forestry. The method comprises the following steps of: adding a proper amount of cultured and domesticated inoculating solution in a reaction system, wherein the ratio of the substrate concentration to the sludge quantity (dry weight) is controlled to be 0.5-0.8; the sludge concentration is 15-25 g/L; the dissolved oxygen concentration is 7.5-9.0 mg/L; the reflux ratio of the sludge is 10-20 percent; and the temperature is controlled to be 25-30 DEG C; and supplementing water which is evaporated in a reactor regularly. By using the method, the removal rate of the heavy metal Cr reaches 45-55 percent through the bioleaching period.

Special refrigeration vehicle

The special refrigeration vehicle comprises a refrigeration box and a vehicle body used for carrying the refrigeration box, the refrigeration box comprises an inner box used for carrying goods, and the inner box is a hollow box body with an opening in at least one end; the outer box is used for heat insulation and heat preservation of goods, the outer box is a box body defined by heat preservation plates and provided with an opening and closing door, the outer box is installed on the vehicle body, and the inner box is installed in the outer box in a sliding mode through a sliding block; the motor is used for driving the inner box to slide in the outer box, the motor is installed on the outer box, an output shaft of the motor is connected with a lead screw through a speed reducer, and the lead screw is in threaded connection with the sliding block; the cold source conveying elements are used for conveying a cold source medium of external refrigeration equipment into the refrigerating box ...

Integrated middle-water reuse apparatus

The integrated intermediate water reusing apparatus includes biochemical reaction tank, horizontal suspended filtering membrane system and automatically controlling single-board computer system. The present invention features the biochemical reaction tank comprising biological selection region, anoxia region and aeration region; the horizontal suspended filtering membrane system set in the aeration region and comprising horizontal suspended filtering membrane assembly, membrane assembly suspending ball, membrane assembly water collecting pipeline frame, frame slide rail and pressure-resisting plastic hose; and the automatically controlling single-board computer system comprising single-board computer controller, input channel, output channel and control panel. The present invention has the advantages of compact structure, low cost, high effluent water quality, etc.

Sealing strip punching machine

The invention provides a sealing strip perforating machine, and relates to the field of sealing strip processing equipment, the sealing strip perforating machine comprises a main body, the main body is of a rectangular plate structure, a motor is installed at one end of the top of the main body, supporting legs are installed at the position of an included angle of the bottom edge of the main body, and an adjusting mechanism is installed at the top of the main body; the adjusting mechanism comprises a sliding groove, and the sliding groove is of a cross-shaped structure and is formed in the rear side of the top of the main body; and the cleaning mechanism is installed at the top of the main body and comprises a guide groove, the guide groove is formed in the front side of the top of the main body, a tool bit on the perforating machine is cleaned through an inner plate, the sharpness of the tool bit is guaranteed, the tool bit at the bottom of a vertical rod can conveniently and rapidly perforate ...

Culture and domestication method of anaerobic process for treating high salinity wastewater

The invention relates to a culture and domestication method of an anaerobic process for treating high salinity wastewater. The method comprises two stages. A first stage is a conventional wastewater habituated culture stage. The stage mainly domesticates and cultures the conventional wastewater aiming at characteristics of difficult culture of the anaerobic process, basic capacity for treating the wastewater by the anaerobic process in a relatively short time, and good conditions are provided for a second stage culture and domestication for the high salinity wastewater. A second stage is a raw water low load operation period. An object of the stage is mainly to domesticate and culture the processing capacity of the anaerobic process for high salinity wastewater, i.e. impact resistant capacity for salinity, and the raw water of salted wastewater can be directly introduced into the anaerobic process under the conditions that keeps the anaerobic device at low load operation. A high salinity ...

Sewage treatment method for promoting sludge reduction by electrokinetic technique

The invention discloses a sewage treatment method for sludge reduction. The method comprises the following steps of feeding domestic sewage into a physicochemical section to treat; transferring into a biochemical pool to biochemically treat; feeding the biochemically treated sewage into a secondary sedimentation tank; discharging on standard after sedimentation; pumping a part of sludge from the secondary sedimentation tank to reflow into the biochemical pool; pumping the other part of sludge into an electrokinetic treating reactor; performing electrochemical lysis; flowing one part of the sludge back to the biochemical pool, and transferring the other part of the sludge to a sludge dewatering center; discharging all the sludge from the secondary sedimentation tank to the sludge dewatering center at regular intervals; dewatering; flowing supernate back to the front end of the biochemical pool; and transporting the dried sludge to the outside to backfill or manufacture bricks. The sewage ...

Method for treating amantadine waste water through crystallization

The invention relates to a waste water treatment method, in particular to a method for treating amantadine waste water through crystallization. The concentration of amantadine is correlated with COD concentration. The amantadine waste water is degraded through crystallization, crystallization chemicals are added in the amantadine waste water and are fully agitated to enable the crystallization chemicals to be evenly mixed and fully react with the waste water, reaction temperature is regulated, and hydrochloric acid solution and sodium hydroxide solution are used for regulating the initial pH value of the waste water. The invention solves the problems that the COD of the amantadine waste water is high and the amantadine waste water is hard to be degraded. On one hand, the crystallization treatment method can remove amantadine in water and reduce the COD value of the waste water; and on the other hand, the crystallized amantadine compound can be recovered, the waste water is treated, the ...

Refrigeration box plate skin processing equipment and method

The invention discloses refrigerating box plate skin processing equipment and a refrigerating box plate skin processing method, relates to the technical field of skin processing, and aims to solve the technical problem that in the prior art, continuous work cannot be realized by means of manual cooperation. The machining equipment comprises a machining table, a position adjusting assembly installed on the outer side of the machining table, a fixing frame installed on the upper side of the position adjusting assembly and a linear motor installed on the upper side of the fixing frame. A laser cutting assembly is arranged on one side of the skin washing assembly, a skin supporting assembly is arranged on the front side of the machining table, a skin clamping assembly is arranged on the upper side of the machining table, a first driving box is fixedly installed on the inner side of the skin clamping assembly, and a second driving box is arranged on one side of the first driving box. And a first ...

Short-distance nitrification denitrification nitrogen removal technology control method

The invention relates to a short-distance nitrification denitrification nitrogen removal technology control method, aims to improve the nitrogen removal efficiency, save energy consumption, reduce sludge yield and save land occupation area, and is suitable for the treatment of industrial wastewater grossly inadequate in phosphorus content. Influences of phosphorus concentration on nitrosifying bacteria and nitrifying bacteria are different, phosphorus subsaturation coefficient for the nitrifying bacteria is one magnitude order higher than the phosphorus subsaturation coefficient for the nitrosifying bacteria, and the method includes target water quality identification and response and mixed liquid phosphorus concentration control and adjustment processes. Short-distance nitrification denitrification is realized as follows: online testing of a reaction liquid, inputting of analysis results into a system, comparison of phosphorus response schemes, generation of a phosphorus dynamic dosing ...

Bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor

The invention relates to a bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor, and aims at improving processing capability and impact resistant composite capability on grease-containing high-density organic wastewater, improving biogas stirring effect and optimizing flow state change in sludge beds. The bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor comprises a water distribution system, a first cycle system and a second cycle system, and is characterized in that: a high-resistance annular pipe is employed for distributing water, a shunting pipe is arranged in an anaerobic sludge area in the reactor, the lower opening of the shunting pipe is arranged corresponding to the water distribution hole in the annular water distribution coil pipe; water in the pipe is subjected to baffling when flowing to a baffler of a first-grade separator and forms a circulating flow in a large sludge area; water entering a second-grade separator ...

Technical method for removing heavy metal Ni from sludge by bioleaching

The invention relates to a technical method for removing Ni (a heavy metal) from sludge by bioleaching, which belongs to the technical field of urban solid waste treatment and aims to solve the problem that the reuse of sludge from urban sewage treatment plants in agriculture and forestry is limited due to high Ni content. The method comprises the following steps: putting a proper amount of culturing and domesticating inoculation solution in a reaction system, and keeping the ratio of substrate concentration to sludge amount (dry weight) at 0.6 to 0.9, sludge concentration at 10 to 30g/L, dissolved oxygen concentration at 7.0 to 8.0mg/L, the reflux ratio of the sludge at 15 to 32 percent and temperature between 25 to 30 DEG C; and periodically supplementing water consumed by evaporation in the reactor. 55 to 65 percent of Ni can be removed by bioleaching.

Rubber sealing strip clamping and fixing structure

The invention provides a rubber sealing strip clamping and fixing structure, and relates to the field of rubber sealing strip production, the rubber sealing strip clamping and fixing structure comprises a cutting supporting table, two supporting frames are symmetrically welded to the bottoms of the left end and the right end of the cutting supporting table, and two limiting battens are welded to the middle position of the top end of the cutting supporting table at intervals; a strip-shaped clamping groove is formed between the two limiting strip plates in a spaced mode. A longitudinal mounting batten is welded and hoisted at the middle position of the bottom of the cutting supporting table; two L-shaped mounting rods are symmetrically welded to the front end of the cutting supporting table, and a sealing strip reel is rotationally mounted between the head end sections of the two L-shaped mounting rods. The ejection frame can be driven to slide upwards by inertial impact force generated ...

Regulation and control method for sewage treatment process of metallurgical industry

The invention discloses a regulation and control method for a sewage treatment process of the metallurgical industry, and relates to sewage treatment technology of the metallurgical industry. The regulation and control method for the sewage treatment process of the metallurgical industry comprises the steps of collecting date, and determining evaluation indexes; building an evaluation index system; calculating various index weighted values used for describing the degree of influence of various indexes on the actual operation effect of the metallurgical sewage treatment process; building index cloud models used for describing the effect of operation, closest to the actual state, of the indexes in the metallurgical sewage treatment process to be evaluated; using a fifteen-dimensional comprehensive cloud T to describe the overall operating state, composed of the various indexes, of the metallurgical sewage treatment process to be evaluated; calculating a weighted deviation degree theta which ...

Method for removing heavy metal Zn from sludge by bioleaching

The invention provides a method for removing a heavy metal Zn from sludge by bioleaching, relates to technology for processing municipal solid waste, and aims to solve the problem of restriction on recycling the sludge, which contains higher heavy metal Zn content, of municipal sewage plants in agriculture and forestry. The method comprises the following steps of: adding a proper amount of cultured and domesticated inoculating solution in a reaction system, wherein the ratio of the substrate concentration to the sludge quantity (dry weight) is controlled to be 0.8 to 1.2; the sludge concentration is 15-30 g/L; the dissolved oxygen concentration is 7.5-8.0 mg/L; the reflux ratio of the sludge is 20-30 percent; and the temperature is controlled to be 25-30 DEG C; and supplementing water which is evaporated in a reactor regularly. By using the method, the removal rate of the heavy metal Zn reaches 80-90 percent through the bioleaching period.

Sludge reduction method by coupling electrochemical/chlorine dioxide catalytic oxidation

The invention discloses a sludge reduction promoting system under the combination of electrochemical and ClO2 catalytic oxidation. The system comprises a main reaction tank, a ClO2 generator, a cycling sludge pump and a sludge storage tank which are connected in sequence, wherein a main reaction tank cycling system and a biochemical reactor form a two-stage treatment system; the main reaction tank is used for performing electrochemical and ClO2 catalytic oxidation; a DSA (Dimensionally Stable Anode) columnar main anode, a cylindrical stainless steel cathode and an auxiliary anode form an electrolytic tank in a form similar to a three-dimensional electrode; a gas outlet pipe of the ClO2 generator is connected with the bottom part of the main reaction tank; a gas distribution system is arranged in the main reaction tank; the top of the main reaction tank is sealed; the reaction exhaust is connected to an exhaust destructor through an outlet pipe on the top of the main reaction tank; a treated ...

Preparation method of sodium ferrate-beta-cyclodextrin inclusion compound

The invention discloses a preparation method of a sodium ferrate-beta-cyclodextrin inclusion compound, relating to a feedwater treatment agent. In the preparation method, a saturated aqueous solution is adopted to prepare beta-cyclodextrin and sodium ferrate into the sodium ferrate-beta-cyclodextrin inclusion compound in an inclusion way, and an inclusion preparation process comprises the steps of: slowly adding the beta-cyclodextrin into a newly-prepared sodium ferrate solution to saturation, oscillating in an oscillation culture box till the beta- cyclodextrin is totally dissolved, placing for cooling, placing into a refrigerator for refrigerating for 24 hours, suction filtering, and drying at low temperature in a vacuum drier to obtain dried sodium ferrate-beta-cyclodextrin inclusion compound powder. The method ensures that a strong oxidizing agent Na2FeO4 can be stably preserved for a long time and has simple process, and compared with the Na2FeO4, the Na2FeO4-beta-CD with same dosage ...

Control method of anaerobic ammoxidation reaction

The invention discloses a control method of an anaerobic ammoxidation reaction, and relates to the technical field of the biological treatment of sewage. The anaerobic ammoxidation treatment effect is realized by controlling the material temperature, the inorganic carbon source concentration and the pH value of a reactor with an upflow anaerobic sludge bed as reaction carrier, wherein the temperature of the reaction material in the reactor is controlled in a range of 30-40DEG C; the adopted inorganic carbon source is NaHCO3, and the concentration of NaHCO3 in the reaction material is controlled in a range of 0.75-0.1g/L; and the pH value of the reaction material in the reactor is in a range of 7-7.5. A system disclosed in the invention is composed of a temperature control system, an automatic inorganic carbon source concentration control system and an automatic pH value control system; the system can display the temperature, pH value the like of an anaerobic ammoxidation reactor in real ...

Preparation method of sodium ferrate-beta-cyclodextrin inclusion compound

The invention discloses a preparation method of a sodium ferrate-beta-cyclodextrin inclusion compound, relating to a feedwater treatment agent. In the preparation method, a saturated aqueous solution is adopted to prepare beta-cyclodextrin and sodium ferrate into the sodium ferrate-beta-cyclodextrin inclusion compound in an inclusion way, and an inclusion preparation process comprises the steps of: slowly adding the beta-cyclodextrin into a newly-prepared sodium ferrate solution to saturation, oscillating in an oscillation culture box till the beta- cyclodextrin is totally dissolved, placing for cooling, placing into a refrigerator for refrigerating for 24 hours, suction filtering, and drying at low temperature in a vacuum drier to obtain dried sodium ferrate-beta-cyclodextrin inclusion compound powder. The method ensures that a strong oxidizing agent Na2FeO4 can be stably preserved for a long time and has simple process, and compared with the Na2FeO4, the Na2FeO4-beta-CD with same dosage ...

Method for washing hollow fiber membrane component

A method for washing hollow fibre membrane module includes such steps as detecting the polluted degree of membrane, sending a signal from the liquid level controller of membrane bioreactor to control system, starting ultrasonic transducers around said membrane module, and ultrasonic washing while aerating. For off-line washing it is necessary to sequentially add HCl, NaOH and NaClO detergents.

Refrigerating box for preserving chilled fresh meat and storage method

The invention discloses a cold closet for preserving chilled fresh meat and a storage method, one side of the cold closet is provided with a pretreatment chamber for fresh meat, the pretreatment chamber is internally provided with a quick-freezing shaping unit, a spraying unit and a film coating unit which are communicated end to end in sequence, and the pretreatment chamber is further provided with a hanging conveying line; the hanging conveying line penetrates through the freezing and shaping unit, the spraying unit and the film wrapping unit, and a side door is arranged at the position, close to the feeding end of the freezing and shaping unit, of the outer side of the pretreatment chamber. The storage method of the refrigerated container comprises the steps of cleaning, suspending, quick-cooling shaping, separant spraying, film coating and stacking. The transportation amount of chilled fresh meat or frozen meat in the refrigerating box can be greatly increased, and safety and sanitation ...

Image texture display method and system, and interactive terminal

The invention discloses an image texture display method and system, and an interactive terminal. The method comprises the following steps: a default image for presenting texture is received; writing information of a user is acquired, and a geometric region is obtained according to the writing information; the geometric region is judged whether to cut the default image; and when the geometric region is used to cut the default image, the texture of the portion of the default image which is cut by the geometric region is displayed. By adopting the method of the invention, a texture image does not need to be added onto the desktop and covered with a covering layer, the image texture cut by the geometric region formed through writing only needs to be displayed according to the writing operation of the user, and meaningless regions that do not need to be displayed do not occupy the desktop space; and the multilayer texture display can be supported, so the user can combine the multilayer texture ...

Additive capable of increasing heat value of household refuse derived fuel, and preparation method thereof

The invention relates to an additive capable of increasing heat value of a household refuse derived fuel. The additive comprises the following materials by weight: 8-15% of calcium oxide, 5-8% of iron oxide, 6%-10% of magnesium hydroxide, 10-15% of calcium carbonate, 35-45% of activated carbon, 20-25% of sawdust and 2-5% manganese dioxide. A preparation method of the additive comprises the steps of making the above materials except the sawdust into powder, and mixing the powder together uniformly according to the above formula. An adding amount of the additive is determined by experiments of the household refuse derived fuel according to different heat values when the additive is added; and an adding proportion is between 1% and 10%. The additive can adjust heat value content for household refuse with different heat values; and a preparation process of the RDF fuel is simplified and a finished product quality of the RDF fuel is greatly increased.

Sewage treatment method by denitrification of aerobic granular sludge

The invention discloses a sewage treatment method by denitrification of aerobic granular sludge, and relates to a biological treatment method for wastewater. The method comprises the following steps of: (1) pumping nitrate nitrogen-containing wastewater into a sequencing bioreactor, wherein the concentration of nitrate nitrogen in the wastewater is 50 to 200mg/L and the COD concentration is 200 to 800mg/L, and adding phosphorus and microelements into the wastewater to maintain the normal growth of microbes; (2) arranging an aerating apparatus on the bottom of the reactor, and ensuring that the air raising speed is 43.2 to 90m/h and the settling time is 1 to 5 minutes; and (3) maintaining the temperature in the reactor between 10 and 28 DEG C, the pH value between 7.0 and 8.5 and dissolved oxygen between 3 and 8mg/L, and controlling the hydraulic retention time to between 3 and 8 hours. In the method, aerobic denitrifying bacteria are granulated, so that the reactor has high efficiency and ...

Integrated short-cut nitrification and denitrification biological nitrogen-removal reactor

The invention relates to a sewage treatment device and specifically relates to an integrated short-cut nitrification and denitrification biological nitrogen-removal reactor which is used for solving the current situation that the existing short-cut nitrification and denitrification biological nitrogen-removal process equipment is large in floor space and high in capital expenditure, needs to be controlled by professional personnel in operating and debugging, and is very complex to operate and manage. The equipment is organically combined with an air plug-flow zone, an aeration zone, an anoxic zone and a settling zone to form an integrated reactor. The equipment consists of a biological nitrogen-removal reactor 1, a water tank 2, a balanced water tank 3, a gas flow rate meter 5, an air compressor 6, an air impeller 7, a mud exhausting hole 8, a water outlet 9, and the like. The equipment can be used for realizing a stable short-cut nitrification and denitrification process, and has the advantages ...

Module processing method for distributed slaughter wastewater

The invention relates to a module processing method for distributed slaughter wastewater. The method is particularly suitable for treatment of small distributed slaughter wastewater. Combined modules are selected and connected in series; an on-line monitor is connected at the front end of the combine module. The combined module comprises a materialized module-coagulation air flotation and drug hydrolysis; a biochemistry module-anaerobic biofilter and a constant water level batch activated sludge reactor, a deep processing module-reverse osmosis. Influent water quality can be detected according to on-line monitor, when a COD concentration is 500-1,500 mg/L, a gas-water ratio of the coagulation air flotation module is adjusted to 3:1; a temperature of the anaerobic biofilter is controlled at 20-25 DEG C; sludge load rate is selected at 0.10 kg/(kg.d); a temperature of CWSBR is controlled at 15-20 DEG C; and dissolved oxygen is controlled at 3-4 mg/L. The module processing method can not only ...

Method for quickly starting oxygen-poor ammonia oxidizing biofilter

The invention relates to a method for quickly starting an oxygen-poor ammonia oxidizing biofilter, and relates to a method for biological denitrification of waste water, which comprises the following steps of: (1) inoculating an anaerobic denitrification biomembrane biofilter, and after a denitrification biomembrane is cultured, converting the anaerobic denitrification biomembrane biofilter into an oxygen-poor environment for cultivating oxygen-poor ammonia oxidizing bacteria; (2) taking inorganic carbon NaHCO3 as a carbon source, taking NH4Cl as a nitrogen source of ammonia nitrogen, taking NaNO2 as the nitrogen source of nitrite nitrogen, taking KH2PO4 as a phosphorus source, and controlling the pH value to be alkalescent, wherein the concentration is low-matrix, and the temperature is room temperature; adding hydroxylamine, and inducing and inoculating sludge to be converted towards an oxygen-poor ammonia oxidizing biomembrane; and (3) taking the biofilter as a reactor, and taking ceramsite ...