PROCEDURE AND DEVICE FOR THE SUBSEQUENT TREATMENT OF BIO GARBAGE

15-05-2004 дата публикации
Номер:
AT0000264814T
Принадлежит:
Контакты:
Номер заявки: 45-00-0089
Дата заявки: 18-02-2000

[1]

The invention concerns a procedure for the subsequent treatment of polluted bio garbage with the following process steps, available within a collecting range:

  • Bloat the bio garbage in water
  • Drop-let the specifically heavy impurities
  • Would drive off the dropped impurities,
as well as a device for the execution of the procedure.

[2]

Usually bio garbage in strongly compressed, halfdamp condition is present, that in particular with lower Auß it entemperaturen to lumps froze whereby isolating the units is still additionally made more difficult.

[3]

The separation or Kompostieren of the bio garbage would drive acquaintance out procedure by hand. Händi separation is however complex and expensive and effected under considerably unhygienischen conditions. In addition the händische separation is also still inefficient, because the stones, metals, glass, clay/tone, plastics, battery portions of etc. comprehensive impurities can be removed usually only insufficiently.

[4]

In a superelevated Ausmaß maintained impurities ruin then the mills planned for the subsequent treatment of the bio garbage verhältnismäß industrial union rapidly.

[5]

In contrast to this the Kompostieren of the total mass leads again to losses of energy and a considerable environmental impact. In addition it means a processing of very groß EN volumes, which is to be avoided again high costs caused and from there also if possible.

[6]

From the DE-A 197 49 530 A1 are a procedure as well as a device for the processing of bio garbage general cargo, which contains sword parts as uncleaned general cargo beside biologically degradable biomass also such as sand, stones, metal, glass and gravel as well as light parts such as pieces of foil, paper and plastics. Will brought the general cargo into a water-filled basin, the heavy portions sink ground and to become essentially brought as mud from the preparation basin, Erfindungsgemäß becomes underneath the water level a part with cleaned biomass of the enriched lying in the preparation basin

[7]

Quantity of water is enfernt by lowering the water level and Absieben of the water. Before bringing in the general cargo is mechanically cut up. The property in the water is essentially washed by means of vibrators and compressed air. A real cutting up does not take place. The presented Prozeß the general cargo processes by portion.

[8]

Further 3,897,215 a device is well-known from the USA, a whose goal is the transfer of public garbage in compost. The property goes through only a magnetic separation and goes anschließ lich by a hammer mill, before it is suspended in a basin in liquid. Task of the invention is it to create a procedure for the subsequent treatment from polluted bio garbage available within a collecting range to which avoids the well-known disadvantages. The resulting bio garbage is to be isolated completely, efficiently and economically in disturbing off portions and biological portions. Hand in hand with it a desired reduction of VOL around of the original garbage goes. After such a reduction on small volumes favourable-proves also a container composting can to be accomplished.

[9]

The invention solves the task thereby, daß the bio garbage within the collecting range before its withdrawal is loosened up and distributed laminar, daß the suspended bio garbage after the following, each other supplementing and continuous process steps is cut up:

  • mechanical Aufreiß EN of compact portions of bio garbage
  • periodic submerging and
  • Further transport of the bio garbage
over one between Eintrittsund withdrawal range defined working on distance in the water, whereby the impurities specifically heavier opposite water drop, and daß the remaining remainder garbage is removed from the water, cut up in a grinding mill (22) and isolated the grinding stock into a kompostierbaren and into a fermentierbaren portion.

[10]

After a further characteristic of the invention is intended, daß that is loosened up the collecting range of taken bio garbage during the withdrawal and distributed laminar. The bio garbage is supplied from the collecting range by means of a conveyer system of a water tub. Ideal way concerns it thereby a conveyor. The polluted bio garbage is mechanically divided on this after another training of the invention, preferably by shaking or, rakes.

[11]

The polluted bio garbage becomes anschließ end, as divides implemented above, in water bloated and.

[12]

By means of mechanical mechanisms the compact bio garbage is loosened after suspending further and disintegrates into smaller ranges. In particular it is importantly, daß the bio garbage under water, already cut up, is dipped again and again, carried on at the same time in addition, in order not to obstruct a supplying again bio garbage.

[13]

While these phases, in which the bio garbage is periodically submerged and continued to transport, impurities separate. The impurities, like stones, heavier opposite water, metals etc. sink to ground, which swim opposite water specifically lighter impurities up and transported together with the bio garbage further.

[14]

The solitary impurities become zusammengefa&szlig into ranges from essentially different specific weight; t and those in such a manner zusammengefaß ten impurities from each other separated exhausted.

[15]

A further characteristic of the invention is also, da&szlig it; the specifically heavier impurities over the working on distance of the bio garbage in the water within several successive collecting ranges to be collected and from these in temporally separated phases be exhausted.

[16]

That would thus not presently/immediately drive off the impurities effected after their dropping. Rather the impurities within collecting ranges are collected and anschließ end periodically exhausted.

[17]

In the remainder garbage existing impurities specifically lighter opposite water are removed if necessary from this before cutting up in the grinding mill.

[18]

Depending upon kind of the subsequent treatment of the bio garbage thus a further selection takes place. In particular if remaining impurities from plastic which up-swum and thus together with the remainder garbage are delivered, for the subsequent treatment these plastic portions before transport are suitable, become the grinding mill far away.

[19]

After a characteristic of the invention is intended, da&szlig thereby; in the remainder garbage remaining and opposite water the specifically lighter impurities across a flow direction either out of the water to be led and against the direction of current taken, collected and exhausted and/or with the flow direction a grinding mill be supplied.

[20]

If these impurities do not disturb during the subsequent treatment, is intended, daß the impurities in a grinding mill, specifically lighter opposite water, to be cut up.

[21]

The grinding stock cut up in the grinding mill becomes verpreß t and the Preß well anschließ finalaccording to a characteristic of the invention into a kompostierbaren and into a fermentierbaren portion isolated.

[22]

All the press leaving material, in particular all langfaserigen_Anteile like wood, plastics etc. belong to the kompostierbaren portion. All materials withdrawing by the filter of the press, bspw. Salad etc. form the fermentierbaren portion and for their further use are supplied.

[23]

The water is constantly enriched by the constant dismantling of impurities and continuous isolating of the bio garbage with float open. In a too much one at impurities in the water the procedure is obstructed and cannot be accomplished any longer satisfyingly. If the specific density of the water should become too high, the appropriate disturbing off portion cannot drop any longer.

[24]

It is intended, da&szlig from there after another substantial characteristic of the invention; the water is held on constant specific density. By it complete isolating of the polluted bio garbage is only ensured. In addition the polluted water is constantly diluted with industrial water.

[25]

By isolating the bio garbage also fat arrives into the water. Since the procedure is accomplished generally in a Wasserbecken set up in the free one, muß to it to be paid attention, daß in particular at low temperatures these fats to be dissolved.

[26]

After a characteristic of the invention is intended, da&szlig from there; the water temperature over fusing temperature of fats contained in the bio garbage is held, for the avoidance of the precipitation and accumulation of the fats.

[27]

The water temperature may become thus never so low, daß the fats begin to settle in the wall range of the Wasserbeckens. In particular they would settle when dropping the disturbing off portions after the withdrawal range of the Wasserbeckens and their evacuation impossible would make.

[28]

It is further also still intended, daß the withdrawal and the further transport of the remainder garbage through eccentrically moved conveyance take place.

[29]

The invention concerns also a device for the execution of the procedure, with a collecting range of a water tub planned for the admission of the bio garbage for suspending the bio garbage, separation devices for impurities solved from the bio garbage.

[30]

Generally the garbage is delivered by means of truck and tilted into a catch pan, from which it is transported to the subsequent treatment.

[31]

The device for the execution of the procedure solves it task posed thereby, daß the device umfaß t:

  • a collecting range trained with a catch pan with a distribution mechanism as transporting, loosening and laminar preparing of the bio garbage up
  • a device for disjointing as well as for periodic submerging and continuous transporting of the bio garbage, arranged in the water tub.
  • at the ground of the water tub over the transportation distance of the bio garbage and would drive off intended Sammelund discharge gutters for collecting the dropped impurities.
  • a separation device within the withdrawal range of the water tub for the impurities withdrawing from the water tub and
  • Mechanisms to the Kompostieren and Fermentieren of the bio garbage.

[32]

The distribution mechanism for the bio garbage, planned within the collecting range, umfaß t erfindungsgemäß a conveyer system for the further transport of the bio garbage as well as tools for loosening and dosage of the bio garbage, tilted into the collecting tub. As tools for loosening and dosage a rake or a Schneckentrieb is preferably used, a right-left-handed Schneckentrieb to training of the invention.

[33]

The together-become lumpy bio garbage becomes by the conveyer system, whatever as scratch, conveyor or connecting rod promoter to be trained to be able, the tools supplied, which it aufreiß EN and in particular laminar distribute further are after an execution of the invention for the transport of the bio garbage from the catch pan into the water tub in the Anschluß to the tools of arranged conveyors intended. This is used in particular with plants, which are fed by LKW's.

[34]

The bio garbage transported into the water tub is suspended in this and disjointed from a device arranged over the entire length of the water tub to disjointing.

[35]

Erfindungsgemäß is intended, daß the device for disjointing as well as for periodic submerging and continuous transporting of the bio garbage of an eccentric cam drive moved Trennwerkzeuge umfaß t.

[36]

In particular the Trennwerkzeuge are forks, rakes, hasps or claws after a further training of the invention.

[37]

Purpose of these Trennwerkzeuge is aufzurei&szlig it, the suspended garbage into smaller packages; EN, in order to make a dropping possible of the impurities. In addition the Trennwerkzeuge must not only puncture the bio garbage, but submerge and carry him on again and again also in particular, in order to permit on the one hand a complete isolating and removing of the remainder garbage and not to obstruct on the other hand a further supplying of polluted bio garbage into the water tub.

[38]

Continuous submerging and carrying on are ideally managed by the eccentrically moved Trennwerkzeuge.

[39]

Erfindungsgemäß the Trennwerkzeuge in close raster are set to make possible around as efficient a working as possible and one groß to obtain EN throughput at bio garbage.

[40]

The impurities specifically heavier opposite water drop and collect themselves in Sammelund discharge gutters arranged at the ground of the water tub. Preferably umfaß t the water tub at least Sammelund discharge gutter in their Anfangsund within their final range.

[41]

Everyone Sammelund discharge gutter is erfindungsgemäß provide with a device for the yield of the accumulated material.

[42]

This device can be in the gutter of movable scratches or also a Schneckentrieb after further educations of the invention.

[43]

This device transports the material from Sammelund discharge gutters in collectors, which are emptied after turning the plant off.

[44]

the water tub with a double coat is trained. In this range water can be intended by preselectable temperature. The water temperature lies as a function of the Auß entemperatur.

[45]

In order to bring the water on the appropriate temperature, is erfindungsgemäß planned, daß in the coat of the water tub, in particular in derem ground range a heating is arranged.

[46]

This heating can be realized after another characteristic of the invention also through in the double coat led heat pipes.

[47]

After disjointing and carrying the bio garbage on this is removed within the final range of the water tub from this. In addition one is auß erhalb the water tub arranged separation device intended.

[48]

Erfindungsgemäß the separation device, an eccentrically running roller with a multiplicity more touched down, is after au&szlig, arranged over the level of the water tub; EN of pointing blattoder rod-shaped elements for the admission of the bio garbage.

[49]

These one behind the other arranged more blattoder rod-shaped elements intervene in the flow direction withdrawing from the water tub and remove the portion of pollution, specifically easier opposite water, which could not be exhausted so far yet.

[50]

After further training of the invention is also intended, daß the more blattoder rod-shaped elements in rotation direction of the roller are curved. Favourable way are erfindungsgemä&szlig they; with springy ends or completely from spring steel trained. In addition the more blattoder rod-shaped elements are erfindungsgemäß within its final ranges tapers trained. Ideal way are they after training of the invention forks.

[51]

In order to be able to carry the material on taken out of the flow direction, muß by the more blattoder rod-shaped elements to be put down can do.

[52]

In addition is erfindungsgemäß planned, daß in the discharge range of the roller Abstreifund tray surface for the taken material, provided with flexible arms, is arranged.

[53]

So that the material can be also stripped, are erfindungsgemäß Abstreifund tray surface with at least a schlitzförmigen recess for the execution of the more blattoder rod-shaped elements provide.

[54]

With springy ends or from spring steel manufactured elements tower above erfindungsgemäß the appropriate recess at length. With the file of the remainder garbage they deform a little and slip themselves thereby after file by the recesses. The remainder garbage remains on Abstreifund tray surface.

[55]

The remainder garbage into a grinding mill spent.

[56]

Several series of over their extent one behind the other arranged more blattoder rod-shaped elements are next to each other intended ideal way set over the length of the roller. Each row correlates assigned schlitzförmigen recess with one their.

[57]

The invention is more near described now on the basis a remark example with help of the attached design.

[58]

Show:

  1. Fig. 1 a schematic representation that erfindungsgemäß EN device,
  2. Fig.2 a schematic representation that erfindungsgemäß EN device in another execution form,
  3. Fig.3A a profile by the disjointing mechanism for the bio garbage, arranged in the water tub,
  4. Fig.3B a plan view on the mechanism gemäß Fig.3A,
  5. Fig.4A an execution form Sammelund discharge gutter on average,
  6. Fig.4B another execution form Sammelund discharge gutter on average,
  7. Fig.4.C a plan view on an execution form of the separation device and
  8. Fig.5 the schematic representation of a container washing plant after the state of the art.

[59]

, The polluted bio garbage which can be processed is delivered generally by means of truck 1 or even in smaller containers 2 and tilted into a catch pan 3. In this the bio garbage is collected and taken for subsequent treatment by means of suitable conveyer systems.

[60]

Fig. 1 shows a conveyer system 4, which transports the bio garbage from the catch pan 3 to the subsequent treatment into the water tub 5. Still during transport the generally together-become lumpy bio garbage at the end becomes promote-strains the conveyer system (4) with tools 6, here a right-left-handed Schneckentrieb, loosened up and laminar distributed on a conveyor (7). The conveyor (7) transport the bio garbage into the water tub (5). The laminar distribution of the bio garbage simplifies following suspending in the Wasserbad.

[61]

Fig.2 shows an execution of the device, with which the supply of the plant takes place both by means of truck 1 and via smaller containers 2. In the catch pan 3 filled by containers 2 only a snail 6 is for the loosening and distribution of the bio garbage apart from the conveyer system 4. Without a conveyor 7 can be done here.

[62]

The water tub 5 umfaß t an entrance range 8 for the bio garbage as well as a withdrawal range 9 for the remaining remainder garbage, which is out-transported by a conveyor 9 '. In the Wasserbad the bio garbage is suspended and continued to divide. Impurities, in particular such with a weight specifically heavy opposite water sink thereby to ground. These impurities collected in two at the ground of the water tub 5 intended Sammelund discharge gutters 10, 10 ' yielded for collecting and would drive off the solitary impurities only and then.

[63]

Around the suspended bio garbage further to divide and from the biogenous portions to separate a disjointing mechanism 11 for the bio garbage is essentially arranged the load materials over the entire range of the water tub 5.

[64]

This disjointing mechanism 11 represented in Fig.3 umfaß t a bar 12, which carries set Trennwerkzeuge 13 in close raster. This preferably as forks, rakes, hasps or claws of trained Trennwerkzeuge 13 reiß EN the bio garbage brought into the water tub 5 always, and dip him periodically under water, while they continue to transport him at the same time also.

[65]

In order to be able the bar 12 connected by two linking hurry 14, 14 would drive, are this movement out ' also in the lateral ground range of the water tub 5 arranged eccentric disks 15, 15 '.

[66]

The movement of with the bar of 12 connected Trennwerkzeuge 13 resulting from this construction is in Fig. 3A under the designation 16, strichliert represented. The drive of the disjointing mechanism 11 is made by control equipment 17, which is arranged in the range of the eccentric disk 15.

[67]

By suspending in the Wasserbad as well as periodic submerging over the entire working on distance loosens also auß ergewöhnlich strengthened bio garbage and opposite water specifically heavier impurities sink to ground. The bio garbage broken permanently by the Trennwerkzeugen 13 is constantly continued to transport, to schluß finally in the withdrawal range 9 and opposite water specifically lighter impurities like vegetable portions or plastics remain to the water tub 5 only remainder garbage.

[68]

The dropping impurities such as stones, metal, glass, clay/tone, in addition, heavier plastics are collected in Sammelund discharge gutters 10, 10 ' and exhausted of the material accumulated from devices arranged in the gutters to the yield. Fig. 4A shows one for this purpose in Sammelund discharge gutter of 10 movably arranged scratches 18. Fig. 4B shows a Schneckentrieb 19, which takes over the yield of the impurities.

[69]

In within the entrance range 8 the water tub 5 planned Sammelund discharge gutter 10 are preferably deposited the heavy portions of the impurities, which draw beside stones and to metal parts quite hammers or battery parts be can. Less rapidly sinking portions are separated later and taken up by second Sammelund discharge gutter 10 '.

[70]

With in Fig. 4A represented variant with a scratch 18 is made the yield of the material by one promote-rubbed diagonally upward into a ton or a container.

[71]

On the other hand transport the snail 19 the material into a tub or a Sammelkasten.

[72]

After turning the plant off this can be emptied. In addition the box is taken either or also only taken off the ground.

[73]

By the Ausschwemmen of the bio garbage the specific weight of the water brought in the water tub constantly increases. From there suitable Ma&szlig must; received to be set, in order to affect and to hold the specific weight of the water a constant value. Only then a correct execution of the procedure is possible.

[74]

In addition the water in the Wasserbecken 5 is constantly diluted with industrial water. The industrial water supply is represented with 20.

[75]

With a too high specific density of the water enriched with floating hurrying the appropriate disturbing off portion no more cannot drop or only with delay. An accordingly complete yield of the impurities would be handicapped.

[76]

Conventional way is set up and is all year round operated the water tub 5 in the free one. From there muß it heatable its. Otherwise could with enterprise under lower Auß do not entemperaturen the separated fats any longer to be dissolved. These would settle then in particular in the rear part of the basin when dropping the disturbing off portions at the Wassserwanne 5 and a Aboder further transport of the material impossible would make.

[77]

Fig. 4A and 4B show double-walled training of the water tub 5. between both the covering hurrying are intended heat pipes 21, by which a heating medium is pumped. The water can be held in such a way on constant temperature.

[78]

The remainder garbage remaining from the isolated bio garbage verläß t as well as the components of the impurities the water tub 5 within the withdrawal range 9 over the conveyor, specifically lighter opposite water, 9 ' and is supplied to a grinding mill 22. If the material remaining in the remainder garbage is not to be processed such as plastics etc. in the mill 22 with, then it becomes, as in Fig. 1 represented, over a separation device 23 from the remainder garbage removes.

[79]

The separation device 23 is an eccentrically running roller 24 with a multiplicity into these assigned blattförmiger elements 25. The axle of the separation device 23 is arranged below the withdrawal level of the conveyor 9 ', in order to be able to take up all material withdrawing from the water tub 5, in particular the impurities specifically lighter opposite water. The direction of rotation of the roller 24 takes place against the flow direction withdrawing from the water tub 5.

[80]

Fig. 4C shows a plan view to the separation device 23. The blattförmigen elements 25 are in such a manner trained, daß either as a whole or at least in their final ranges are flexible. They move by the flow direction and take up according to their arc-shaped training the impurities. These transport it to a Abstreifoder tray surface 26 within the withdrawal range of the separation device 23. On this surface the impurities are put down and anschließ end into a container 27 to be carried, over finally disposed of can.

[81]

The Abstreifoder tray surface 26 is diagonally downward a surface posed with a multiplicity of schlitzförmigen recesses 28, by which the flexible blattförmigen elements 25 can slip through when stripping the impurities.

[82]

As in Fig. 4C shown, stand the blattförmigen elements 25 before their entering the recesses 28 somewhat over the Schlitztiefe of the recesses 28, in order to ensure a complete stripping of the impurities.

[83]

The remainder garbage released from the impurities arrives into the grinding mill 22.

[84]

From there the grinding stock is passed on into a plant 29 for composting and/or into a fermenter 30.

[85]

With the execution form represented in Fig.2 the plastic portions in the grinding mill 22 with are processed.

[86]

After the meal procedure the material arrives into a worm extruder 31, in that it ausgepreß t becomes.

[87]

All the press leaving material, in particular all langfasrigen portions such as wood, plastics etc. belong to the kompostierbaren portion and into the plant 29 to the composting are continued to lead.

[88]

All materials withdrawing by the filter of the press, bspw. Leftovers such as salad etc. form the fermentierbaren portion and to their further use for a fermenter 30 are supplied.

[89]

Fig. one shows 5 like before descriptive device as well as one to this attached container washing plant.

[90]

This transports the containers 2 with the opening downward from the filler range into the catch pan 3 over one promote-strains 32 away from the plant.

[91]

Within a wash range 33 the containers 2 over nozzles 34 are completely washed, before them promote-strain 32 again abandoned and are supplied to their renewed use.



[92]

In a process to recycle municipal biological refuse, the refuse is deposited in holding container (3) from which it is progressively transferred by conveyer (7) to a water basin (5) where it is spread out, allowing heavy items to sink. Floating items are moved to a crusher/grinder (22) and are then separated into portions for composting or fermentation. Also claimed is an assembly with a holding container (3) and a water basin (5) in which refuse floats or sinks. A cam-operated separator (11) with separator tool repeatedly dips into and moves the floating refuse through the basin towards an inclined conveyer (9). Heavy items sink and migrate into channels (10) for removal. Floating refuse is raised by the conveyer (9) and deposited onto a separator wheel (23). Other refuse drops into a crusher/grinder (22) from which it is fed to a worm extruder (31). The pressed residues are composted or fermented (29,30)-



A procedure for the further processing of polluted organic waste present in a collection area, comprising the following procedural steps:

Suspending the organic waste in water

Letting the specifically heavy impurities sink down

Removing the sunken impurities,

characterised in that the organic waste, prior to being extracted, is loosened up and spread areally in the collection area (3), in that the suspended organic waste is broken up according to the following continuous procedural steps which complement one another:

Mechanically tearing up solid parts of organic waste

Periodic submerging

Further transportation of the organic waste

along a processing section in water, defined between entry and exit areas, whereby the specifically heavier-than-water impurities sink down, and in that the remaining residual waste is extracted from the water, broken up in a mill (22) and the milled waste is separated into a compostable and a fermentable portion.

The procedure according to claim 1, characterised in that the organic waste extracted from the collection area (3) is loosened up and spread areally during its extraction.

The procedure according to claim 1, characterised in that the milled material broken up in a mill (22) is compacted and the compacted material is then separated into a compostable and a fermentable portion.

The procedure according to claim 2, characterised in that the polluted organic waste is broken up mechanically, preferably by shaking or raking.

The procedure according to claim 1, characterised in that the specifically heavier impurities are collected along the processing section of the organic waste in the water in several successive collection areas and are removed from these in timed separate phases.

The procedure according to claim 1, characterised in that the water is kept at a constant specific density.

The procedure according to claim 1, characterised in that the water temperature is kept above the melting temperature of the fatty matters contained in the organic waste, in order to avoid precipitation and accumulation of the fatty matters.

The procedure according to claim 3, characterised in that the specifically lighter-than-water impurities remaining in the residual waste are either guided out of the water by means of a liquid current and extracted, collected and removed against the current direction and/or fed to a mill (22) together with the liquid current.

An apparatus for carrying out the procedure according to claims 1 to 8 with a collection area provided for receiving the organic waste, a water trough for suspending the organic waste, separating devices for impurities dissolved from the organic waste,characterised in that the apparatus comprises:

a collection area comprising a catchment trough (3) having a spreading facility (4, 6) for transporting, loosening and areally preparing the organic waste,

a device (11) arranged in the water trough (5) for tearing up and periodically submerging and continuously transporting the organic waste,

collecting and discharging channels (10, 10') provided at the bottom of the water trough (5) along the transporting section of the organic waste for collecting and removing the sunken impurities,

a separating device (23) in the exit area (9) of the water trough (5) for the impurities leaving the water trough (5), and

facilities (29, 39) for composting and fermenting the organic waste.

The apparatus according to claim 9, characterised in that the spreading facility (4, 6) comprises a conveying facility (4) as well as tools (6) for loosening and metering the polluted organic waste, in particular rakes or a worm drive.

The apparatus according to claim 9, characterised in that a slope conveyor (7) arranged downstream of the tools (6) is provided for transporting the organic waste from the catchment trough (3) into the water trough (5).

The apparatus according to claim 9, characterised in that the device (11) for tearing up and periodically submerging and continually transporting the organic waste comprises separating tools (13) driven by an eccentric drive (14, 14; 15, 15').

The apparatus according to claim 12, characterised in that the separating tools (13) are forks, rakes, reels or claws.

The apparatus according to claim 13, characterised in that the separating tools (13) are arranged in a closed pitch (grid).

The apparatus according to claim 9, characterised in that the water trough (5) is fitted with a double shell.

The apparatus according to claim 15, characterised in that the heater is provided within the wall of the water trough (5), in particular in its bottom area.

The apparatus according to claim 16, characterised in that the heater consists of heating pipes (21) lead within the double wall.

The apparatus according to claim 9, characterised in that the separating device (23) comprises an eccentrically running roll (24) arranged in the exit area (9) of the water trough (5), and in that the roll (24) has a plurality of surface-mounted, outward-pointing blade- or rod-shaped elements (25) for receiving the organic waste.

The apparatus according to claim 18, characterised in that the blade- or rod-shaped elements (25) are bent in rotational direction of the roll (24).

The apparatus according to claim 18 or 19,characterised in that the blade- or rod-shaped elements (25) are provided with springy ends.

The apparatus according to claim 18, characterised in that the blade- or rod-shaped elements (25) are made of spring steel.

The apparatus according to one of claims 17 to 21,characterised in that the blade- or rod-shaped elements (25) are tapered in their end areas.

The apparatus according to one of claims 17 to 22,characterised in that blade- or rod-shaped elements (25) are forks.

The apparatus according to claim 18, characterised in that a scraping and depositing surface (26) for the extracted material is provided in the discharge area of the separating device (23).

The apparatus according to claim 24, characterised in that the scraping and depositing surface (26) is provided with at least one recess (28) for the blade-or rod-shaped elements (25) to pass through.

The apparatus according to claim 24, characterised in that at the least one recess (28) is slot-shaped.

The apparatus according to claims 18 and 26,characterised in that each blade- or rod-shaped element (25) rises above its related recess (28) with respect to its length.

The apparatus according to claim 9, characterised in that a device (18, 19) is provided in each collection and discharge channel (10, 10') for discharging the accumulated material.

The apparatus according to claim 28, characterised in that the device for discharging the accumulated material is a scraper (18) movable in the collection and discharge channels (10, 10').

The apparatus according to claim 29, characterised in that the device for discharging the accumulated material is a worm drive (19).