Technology for methanation processing consumer waste step by step and bioreactor
Technical Field The invention relates to a domestic refuse landfill treatment technology, specifically refer to a kind of domestic garbage methanation step by step processing the biological reactor. Background Art Domestic rubbish percolate biological reactor technology for direct circulation returns fills existence of acid for inhibiting phenomenon, mostly used at home and abroad in the diafiltration liquid and or control of the row of the way to realize, this not only increases the running cost, the control of the row and diafiltration liquid stabilization process garbage by the impact of the landfill site. In the system the landfill, to non-homogeneity of the landfill, non-uniformity of the fermentation process, and the a monoids caused by some reasons, the development of synchronism not, may affect the stabilization process of garbage the landfill. Therefore, to specifically distinguish stabilization stage of the landfill, row operation control percolation liquid more difficult and recharging mode. Content of the invention This invention has offered a kind of domestic garbage treatment technology of methanation step by step, to realize the degradation of the organic separating methanogenesis, the direct circulation of the landfill leachate returns fills biological reactor art that the acid for inhibiting phenomenon, accelerate the stabilization process of the landfill garbage, the methane yield is improved, convenient collection and use of the methane. A kind of domestic garbage treatment technology of methanation step by step, comprising the following steps: Is provided with two series of the anaerobic reactor, a 1st in the anaerobic reactor of the organic substances in the garbage to hydrolyze acid production, formed as a product of a 2nd through leachate feeding of the anaerobic reactor, and is converted into methane, then return the water from the landfill. The present invention also provides the above-mentioned processing technology on the basis of the biological reactor. A methanation step by step processing the biological reactor, comprising a sanitary landfill, the sanitary landfill leachate water outlet at the bottom of the access, the methanogenesis reactor, is arranged on the top of the methane-air reactor, producing methane reactor is connected with the water outlet of the three-phase separator, three-phase separator of the liquid passage on the top of the sanitary landfill leachate water inlet, access collection air pocket gas passage. The sanitary landfill of the inlet pipe and water outlet pipe are connected with collection thermos and peristaltic pump. The air chamber is arranged on the top of the sanitary landfill, sanitary landfill methane reactor of the air chamber and the air chamber are an external gas flow meter and collection air pocket. The methanogenesis reactor is provided with a return to access the bottom of the circulation pipe of the inlet pipe. The sanitary landfill is set at the bottom of the stone layer. The sand is arranged on the top of the sanitary landfill. The device of the invention in the health of the landfill increased water circulation pipeline for wildrye pre-treatment of production the methane reactor, can be the degradation of organic matter and methanogenesis, obtain physical separation, of two categories pinensis (hydrolysis acid producing bacteria and producing methane bacteria) synergistic metabolic, promote domestic garbage rapid stabilization process. In the methanogenesis reactor at the same time producing a large amount of methane gas, the collected by a gas tube, and has considerable economic benefit. By adopting the method of the invention, the role of the methane and acid is carried out in two reactors, physical separation can be obtained, their respective optimization of two categories degradation microbe refuse pinensis (hydrolysis acid producing bacteria and producing methane bacteria) synergistic metabolic, with the corresponding physiological ecological role changes also occurred. The bioreactor to the landfill to garbage degradation, coordinated production of the role of the methane and producing microorganism, can remove leachate returns fills bioreactor landfill garbage degradation of the phenomenon of "silaged". In the present invention in biological reactor landfill, because the refuse landfill weaken the activity of producing methane, producing bacteria fermentation type will also change, as a result generating ethanol, propionic acid and butyric acid, the degree of reduction than the acetic acid fermentation product, thereby to accelerate the creation of favorable conditions for stabilization. Description of drawings Figure 1 is a structure diagram of the invention. Mode of execution As shown in Figure 1, a domestic garbage methanation step by step processing biological reactor, including sanitary landfill 1, sanitary landfill 1 diafiltration at the bottom of the of the controller collection thermos 9 peristaltic pump and peristaltic pump access, the methanogenesis reactor 2, producing methane reactor 2 the air chamber at the top of the 7 access collection air pocket , methanogenesis reactor 2 is connected with the water outlet of the three-phase separator 3, three-phase separator 3 through a liquid passage collection thermos 12 peristaltic pump and peristaltic pump 6 is switched on sanitary landfill 1 leachate on the top of the water inlet, access collection air pocket gas passage 13. Methanogenesis reactor 2 is provided with a return to access the bottom of the circulation pipe of the inlet pipe. Sanitary landfill 1 is discharged smoothly the leachate is arranged at the bottom of the stone layer 10, the top is provided with a sand layer 11 and the air chamber, the air chamber an external gas flow meter 5 and collection air pocket 13. The household trash into the sanitary landfill 1 in, operation device, sanitary landfill 1 leachate flows into the producing methane reactor 2 in, and then by the three-phase separator 3 is separated, diafiltration solution is collection thermos 12 peristaltic pump and peristaltic pump 6 is recycled to the sanitary landfill 1 in, the methane gas generated collection air pocket airway collected 13 to be in use. To this, until the domestic refuse stabilization. The invention discloses a fractional methanation treatment technique of consumer waste, which comprises the following steps: equipping with two series anaerobic reactor; producing the acid by hydrolyzing organic material in the consumer waste in the first anaerobic reactor; regarding the product as the charging material of the second anaerobic reactor by straining liquid; converting into methane; recharging the discharging water in the burial ground. The invention also provides a bioreactor based on the treatment technique. The invention increases a methane-producing reactor for treating the straining liquid before returning the tank at the inlet and outlet circulation pipes in the sanitary burial ground in order to separate the organic substance from acid-producing phase and methane-producing phase and acquire the physical separation and the co-metabolic reaction of two floras, which accelerates high-speed stabilization process of the consumer waste, while the methane-producing reactor can remove a large portion carbon in the organic material, which produces a large scale of methane gas and has the good economic benefit. 1. A kind of domestic garbage treatment technology of methanation step by step, which is characterized by comprising the following steps: Is provided with two series of the anaerobic reactor, a 1st in the anaerobic reactor of the organic substances in the garbage to hydrolyze acid production, formed as a product of a 2nd through leachate feeding of the anaerobic reactor, and is converted into methane, then return the water from the landfill. 2. A methanation step by step processing biological reactor, including sanitary landfill (1), characterized in that said sanitary landfill (1) percolate water outlet at the bottom of the access, the methanogenesis reactor (2), producing methane reactor (2) is arranged at the top of the air chamber, the methanogenesis reactor (2) is connected with the water outlet of the three-phase separator (3), the three-phase separator on sanitary landfill a liquid passage (1) the water inlet of the leachate on the top of the, access collection air pocket gas passage (13). 3. Biological reactor according to Claim 2, characterized in that said sanitary landfill of the inlet pipe and water outlet pipe are connected with collection thermos (9), (12) peristaltic pump and peristaltic pump (6). 4. Biological reactor according to Claim 2, characterized in that said sanitary landfill (1) is arranged on the top of the air chamber, the air chamber and producing sanitary landfill methane reactor (2) gas flow meter is connected with the air chamber (5) and collection air pocket (13). 5. Biological reactor according to Claim 2, characterized in that the methanogenesis reactor (2) is provided with a return to access the bottom of the circulation pipe of the inlet pipe. 6. Biological reactor according to Claim 2, characterized in that said sanitary landfill is set at the bottom of the stone layer (10). 7. Biological reactor according to Claim 2, characterized in that said sanitary landfill (1) is arranged on the top of the sand layer (11).