CN103011488A - Domestic waste leachate treatment method - Google Patents

Domestic waste leachate treatment method Download PDF

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Publication number
CN103011488A
CN103011488A CN2011102842231A CN201110284223A CN103011488A CN 103011488 A CN103011488 A CN 103011488A CN 2011102842231 A CN2011102842231 A CN 2011102842231A CN 201110284223 A CN201110284223 A CN 201110284223A CN 103011488 A CN103011488 A CN 103011488A
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China
Prior art keywords
domestic waste
waste leachate
membrane bioreactor
leachate
mud
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CN2011102842231A
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Chinese (zh)
Inventor
杨晨
张宝林
杜联盟
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Beijing Lucency Enviro Tech Co Ltd
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Beijing Lucency Enviro Tech Co Ltd
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Priority to CN2011102842231A priority Critical patent/CN103011488A/en
Publication of CN103011488A publication Critical patent/CN103011488A/en
Pending legal-status Critical Current

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Abstract

The invention provides a domestic waste leachate treatment method comprising the steps that: the concentration of the domestic waste leachate is regulated in a regulating tank; a part of organics of the domestic waste leachate is degraded by using an up-flow anaerobic sludge bed reactor; ammonia, nitrogen, and another part of the organics in the domestic waste leachate after degradation are removed by using a membrane bioreactor; and at least a part of salts in the domestic waste leachate processed by using the membrane bioreactor are removed by using a disk-tube nano-filter, such that domestic waste leachate reaching a preset discharging standard is obtained. With the domestic waste leachate treatment method provided by the embodiment of the invention, domestic waste leachate satisfying a preset discharging standard can be produced stably and continuously. Also, with the method, service lives of deices are prolonged.

Description

House refuse percolate treating method
Technical field
The present invention relates to technical field of sewage, particularly a kind of UMDT house refuse percolate treating method.
Background technology
The UMDT Domestic Waste Leachate can't be fully be reduced to the scope that film can bear with the principal pollutant of Domestic Waste Leachate in the prior art.Its reason is as follows:
1, only can't process the organism of Domestic Waste Leachate middle and high concentration by anaerobic pond A/O, organic content is too high in its Domestic Waste Leachate after processing by anaerobic pond A/O.
2, by Aerobic Pond the heavy ammonia and nitrogen components of Domestic Waste Leachate is removed, its anaerobic pond and Aerobic Pond carry out respectively, have greatly increased processing cost.
3, the too small most of salt ion that can tackle in the sewage in the aperture of reverse osmosis membrane, and being returned spray, the common employing of Domestic Waste Leachate concentrated solution after treatment again processes, therefore the salt ion in the concentrated solution causes film to pollute easily, so that reverse osmosis membrane is impaired, affect the life-span of reverse osmosis membrane, cost is high.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least.
For this reason, the object of the invention is to propose a kind of house refuse percolate treating method that can stablize the Domestic Waste Leachate that meets predetermined emission standard that produces constantly.And the method can prolong the work-ing life of each equipment.
To achieve these goals, the house refuse percolate treating method of the embodiment of the invention may further comprise the steps: the concentration of regulating described Domestic Waste Leachate in equalizing tank; By degrade a part of organism of described Domestic Waste Leachate of upflow anaerobic sludge blanket reactor; By ammonia, nitrogen and another part organism in the Domestic Waste Leachate after the membrane bioreactor removal degraded; Remove at least a portion salt through the Domestic Waste Leachate of described Membrane Bioreactor for Wastewater Treatment to obtain meeting the Domestic Waste Leachate of predetermined emission standard by dish tubular type nanofiltration device.
House refuse percolate treating method according to the embodiment of the invention, concentration by the balanced Domestic Waste Leachate of equalizing tank, then by upflow anaerobic sludge blanket reactor organism in the Domestic Waste Leachate is degraded, then remove ammonia and nitrogen components in the Domestic Waste Leachate by membrane bioreactor, remove the Domestic Waste Leachate that obtains meeting emission standard behind the part salt in the Domestic Waste Leachate by dish tubular type nanofiltration device at last.The method can guarantee that up-flow anaerobic sludge blanket removes the organism 80% or more in the Domestic Waste Leachate, and it is obvious to have a degradation effect, and makes a price reduction the high advantage of efficient.When removing ammonia nitrogen, can hold back microorganism and suspended substance in the Domestic Waste Leachate by membrane bioreactor, thereby guarantee that membrane bioreactor has lasting ammonia nitrogen removal ability, and then improve the processing efficiency of membrane bioreactor.Can remove molecular weight at the salt ion of 100-1000 by dish tubular type nanofiltration device, therefore can guarantee that more salt discharges system with Domestic Waste Leachate, avoid salt that equipment is caused damage, when improving service life of equipment and guarantee Domestic Waste Leachate stable reach constantly emission standard.In addition, the control of the method for the embodiment of the invention is simple, is easy to realize.
In addition, house refuse percolate treating method according to the above embodiment of the present invention can also have following additional technical characterictic:
In one embodiment of the invention, a part of Domestic Waste Leachate after described dish tubular type nanofiltration device is processed returns and is sprayed onto the concentration of described equalizing tank to be used for regulating described Domestic Waste Leachate.The Domestic Waste Leachate saltiness of returning spray obviously reduces, and avoids device is caused damage.
In one embodiment of the invention, also comprise and utilize gas blower air blast in the described membrane bioreactor.Improve thus the processing efficiency of membrane bioreactor.
In one embodiment of the invention, also comprise: carry out just heavyly by preliminary sedimentation tank to regulating Domestic Waste Leachate after the concentration, then be transported in the water collecting basin; Utilize the Domestic Waste Leachate heating after interchanger just sinks to the process in the water collecting basin; Be transported to described upflow anaerobic sludge blanket reactor with the Domestic Waste Leachate after will heating.
In one embodiment of the invention, also comprise: the mud that will give off from the mud that just settles out, from described upflow anaerobic sludge blanket reactor and the mud discharging of discharging from described membrane bioreactor are to sludge sump; With utilize device for dehydrating sladge waste that the mud in the described sludge sump is dewatered.Avoid hoarding in mud preliminary sedimentation tank, upflow anaerobic sludge blanket reactor and the membrane bioreactor, improve thus the processing efficiency of upflow anaerobic sludge blanket reactor and membrane bioreactor.
In one embodiment of the invention, by ammonia, nitrogen and another part organism in the Domestic Waste Leachate after the board-like membrane bioreactor removal degraded.Be beneficial to thus microorganism and the suspended substance held back in the Domestic Waste Leachate, guarantee sludge concentration in the membrane bioreactor, improve the processing efficiency of membrane bioreactor.And the board-like film of board-like membrane bioreactor is difficult for stopping up, effectively preventing the pollution of board-like film, the work-ing life of further improving membrane bioreactor.In addition, board-like film is easy for installation, is easy to change.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is for being used for enforcement according to the structure iron of the Domestic Waste Leachate treatment system of the house refuse percolate treating method of the embodiment of the invention of the embodiment of the invention;
Fig. 2 is the sectional view of the upflow anaerobic sludge blanket reactor of Domestic Waste Leachate treatment system shown in Figure 1;
Fig. 3 is that upflow anaerobic sludge blanket reactor shown in Figure 2 is along the sectional view of A-A direction;
Fig. 4 is that upflow anaerobic sludge blanket reactor shown in Figure 2 is along the sectional view of B-B direction; And
Fig. 5 is the schema of the house refuse percolate treating method of the embodiment of the invention.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, need to prove that unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can particular case understand above-mentioned term concrete meaning in the present invention.
Below in conjunction with the house refuse percolate treating method of accompanying drawing description according to the embodiment of the invention.The method can be controlled different Domestic Waste Leachate treatment systems.For the ease of understanding, the below at first describes the example according to the Domestic Waste Leachate treatment system of the house refuse percolate treating method of the embodiment of the invention of be used for implementing, it will be appreciated that, be not limited to utilize following Domestic Waste Leachate treatment system to implement according to the house refuse percolate treating method of the embodiment of the invention.
As shown in Figure 1, the Domestic Waste Leachate treatment system comprises equalizing tank 110, upflow anaerobic sludge blanket reactor 120, membrane bioreactor 130 and dish tubular type nanofiltration device 140.
The entrance of upflow anaerobic sludge blanket reactor 120 links to each other with the outlet of equalizing tank 110.The entrance of membrane bioreactor 130 links to each other with the outlet of upflow anaerobic sludge blanket reactor 130.The entrance of dish tubular type nanofiltration device 140 links to each other with the outlet of membrane bioreactor 130.
The Domestic Waste Leachate treatment system is by the concentration of equalizing tank 110 balanced Domestic Waste Leachates, then degrade by organism in 120 pairs of Domestic Waste Leachates of upflow anaerobic sludge blanket reactor, and remove ammonia and nitrogen components in the Domestic Waste Leachates by membrane bioreactor 130, obtain meeting the Domestic Waste Leachate of emission standard behind the part salt of then being removed in the Domestic Waste Leachate by dish tubular type nanofiltration device 140.Remaining garbage leachate continues back to be sprayed onto equalizing tank to be processed again.
As shown in Figure 1, the Domestic Waste Leachate treatment system also comprises preliminary sedimentation tank 150 and water collecting basin 160.The entrance of water collecting basin 160 links to each other with the outlet of preliminary sedimentation tank 150, and wherein, the outlet of equalizing tank 110 links to each other with the entrance of preliminary sedimentation tank 150, and the outlet of water collecting basin 160 links to each other with the entrance of upflow anaerobic sludge blanket reactor 120.Further, also comprise interchanger 161, interchanger 161 links to each other with water collecting basin 160.The suspended substance that preliminary sedimentation tank 150 is removed in the Domestic Waste Leachate enters the Domestic Waste Leachate of removing suspended substance in the water collecting basin 160, has water collecting basin 160 that Domestic Waste Leachate is entered upflow anaerobic sludge blanket reactor 120 again.Preliminary sedimentation tank 150 prevents that suspended substance from causing damage to follow-up equipment, and then the work-ing life of extension device.
In conjunction with Fig. 1, the Domestic Waste Leachate treatment system also comprises sludge sump 170 and device for dehydrating sladge waste 180.The entrance of sludge sump 170 links to each other with the mud discharging mouth of preliminary sedimentation tank 150, the mud discharging mouth of upflow anaerobic sludge blanket reactor 120 and the mud discharging mouth of membrane bioreactor 130 respectively, sludge sump 170 avoids mud to hoard in preliminary sedimentation tank 150, upflow anaerobic sludge blanket reactor 120 and membrane bioreactor 130 too much, thereby improves mud in the working efficiency of preliminary sedimentation tank 150, upflow anaerobic sludge blanket reactor 120 and membrane bioreactor 130.Device for dehydrating sladge waste 180 links to each other with the outlet of sludge sump 170, is used for mud is carried out processed.In one embodiment of the invention, device for dehydrating sladge waste 180 is the sludge dewatering machine room, and after the sludge dewatering machine room dewatered to mud, residual mud can be used for sludge composting.
The Domestic Waste Leachate treatment system also comprises gas blower 131, and as shown in Figure 1, gas blower 131 links to each other with membrane bioreactor 130, is used for to membrane bioreactor 130 air blast.Improve thus the reaction efficiency of membrane bioreactor 130.
As shown in Figure 1, the Domestic Waste Leachate treatment system also comprises intermediate pool 190, and the entrance of intermediate pool 190 links to each other with the outlet of membrane bioreactor 130, and intermediate pool 190 outlets link to each other with the entrance of dish tubular type nanofiltration device 140.Intermediate pool 190 can enter dish tubular type nanofiltration device 140 with a part of Domestic Waste Leachate in the concentrated area as water storage apparatus, improves the processing efficiency of dish tubular type nanofiltration device 140.
Advantageously, membrane bioreactor 130 is board-like membrane bioreactor.Thus, board-like film can more effectively be held back microorganism and the suspended substance in the Domestic Waste Leachate, guarantees sludge concentration in the membrane bioreactor 130, improves the processing efficiency of membrane bioreactor 130.And the board-like film of board-like membrane bioreactor is difficult for stopping up, effectively preventing the pollution of board-like film, the work-ing life of further improving membrane bioreactor 130.In addition, board-like film is easy for installation, is easy to change.Certainly, embodiments of the invention are not limited to this, and for example, membrane bioreactor 130 can also be hollow-fiber membrane bioreactor.
The below describes the concrete structure of the upflow anaerobic sludge blanket reactor 120 of Domestic Waste Leachate treatment system in detail.As shown in Figure 2, upflow anaerobic sludge blanket reactor comprises reactor body 210, large resistance water distribution system 220, anaerobic mud bed 230 and multilayer triphase separator 240.
In conjunction with Fig. 3 or Fig. 4, be limited with reaction chamber in the reactor body 210, the top of reaction chamber is connected with escape pipe 290 and rising pipe 260.Large resistance water distribution system 220 is arranged on the bottom (figure middle and lower part) of reaction chamber, large resistance water distribution system 220 comprises water inlet pipe 250 and a plurality of water distributors 221 that link to each other with water inlet pipe 250 (a plurality of water distributors 221 that arrange along left and right directions the figure middle and lower part), and a plurality of water distributors 221 are evenly distributed in the bottom of reaction chamber.Anaerobic mud bed 230 are located in the reaction chamber and are positioned at large resistance water distribution system 220 tops.Multilayer triphase separator 240 is arranged in the reaction chamber and is positioned at described anaerobic mud bed 230 tops.As shown in Figure 2, in one embodiment of the invention, the number of plies of multilayer triphase separator 240 is 3 layers, and embodiments of the invention are not limited to this certainly, for example can also be 4 layers even more multi-layered.
Wherein, reactor body 210 is made by steel or Steel Concrete, large resistance water distribution system 220 is made for stainless steel, and multilayer triphase separator 240 is made for glass steel material, and rising pipe 260 and water inlet pipe 250 have the pipe of preservative property for carbon steel pipe or PVC-U pipe etc.
In conjunction with Fig. 4, Domestic Waste Leachate from the water inlet pipe 250 of large resistance water distribution system 220 enter and through a plurality of water distributors 221 upwards flow with anaerobic mud bed 230 mud mix and contact, the organism in the microorganism decomposition Domestic Waste Leachate in the mud also is converted into biogas to it.Biogas and Domestic Waste Leachate rise together and enter multilayer triphase separator 240, and multilayer triphase separator 240 separates biogas, moisture and mud, and biogas is derived by escape pipe 290.Mud is deposited in anaerobic mud bed 230 under action of gravity.And moisture (Domestic Waste Leachate) is discharged upflow anaerobic sludge blanket reactor along rising pipe 260.
A plurality of water distributors 221 of large resistance water distribution system 220 are evenly distributed in the reaction chamber bottom, make Domestic Waste Leachate enter anaerobic mud bed 230 more all, guarantee that thus Domestic Waste Leachate fully contacts with anaerobic sludge in anaerobic mud bed 230, thereby improve anaerobic sludge to the efficient of organic matter degradation.Multilayer triphase separator 240 makes separating of biogas, moisture and mud more thorough, by guaranteeing that the mud containing rate in the moisture reduces, guarantee in biogas and the moisture impurity still less, and avoid mud and gas leakage in the sepn process.
As shown in Figure 2, upflow anaerobic sludge blanket reactor also comprises return line 270 and water pump 280.One end of return line 270 links to each other with rising pipe 260, the other end of return line 270 links to each other with water inlet pipe 250, and between an end of return line 270 and the other end, be provided with the first valve 271, the quantity of reflux of the Domestic Waste Leachate that control return line 270 refluxes, and then improve anaerobic mud bed 230 processing efficiency, and prevent anaerobic mud bed 230 excess load.As shown in Figure 2, the first valve 271 is two, lay respectively at the both sides of water pump 280, but embodiments of the invention is not limited to this, for particular location and the not restriction of number of the first valve 271.
Water pump 280 is connected on the return line 270 with the return velocity in the control return line 270.Thereby control is back to anaerobic mud bed 230 sludge quantity by large resistance water distribution system 220, prevent large resistance water distribution system 220 acidifyings, and avoid anaerobic mud bed 230 mud excess load, and then shorten the initial stage debugging of upflow anaerobic sludge blanket reactor and to domestication time of anaerobic mud bed 230.Advantageously, water pump 280 is variable frequency pump, adjusts reflux ratio by effluent quality, further the debugging of shortening initial stage and domestication time of anaerobic mud bed 230.
Such as Fig. 2, upflow anaerobic sludge blanket reactor also comprises a plurality of the second valves 2211, and a plurality of the second valves 2211 and a plurality of water distributors 221 link to each other to control respectively the switching of a plurality of water distributors 221 correspondingly.It is the flow of the interior regional of reaction chamber of a plurality of the second valve 2211 control upflow anaerobic sludge blanket reactors, thus, if stopping up appears in a certain zone, can singly open this zone the second valve 2211, close second valve 2211 in other zone, wash silting open with large flow, high pressure, further reduce the acidifying possibility, and then extension device work-ing life.
As shown in Figure 2, upflow anaerobic sludge blanket reactor comprises that also the 3rd valve 291, the three valves 291 link to each other with escape pipe 290.Thus, the output of control biogas guarantees the pressure in the reaction chamber.
Schema according to the house refuse percolate treating method of the embodiment of the invention is described below.
As shown in Figure 5, in conjunction with Fig. 1, described life refuse processing method comprises the steps:
Step S101 is in the concentration of equalizing tank 110 interior adjusting Domestic Waste Leachates.Be that pending Domestic Waste Leachate enters equalizing tank 110, reach the purpose of regulating Domestic Waste Leachate concentration by the control to the water yield in the equalizing tank 110, the Domestic Waste Leachate after then concentration adjustment being finished enters in the upflow anaerobic sludge blanket reactor 120.
Step S102 is by a part of organism of upflow anaerobic sludge blanket reactor 120 degraded Domestic Waste Leachates.Step S102 can make organic matter degradation at least 80% in the Domestic Waste Leachate by upflow anaerobic sludge blanket reactor 120, guarantees that organic content reaches emission standard in the water outlet.Further, upflow anaerobic sludge blanket reactor 120 is the upflow anaerobic sludge blanket reactor shown in the above-mentioned embodiment.
Step S103 is by ammonia, nitrogen and another part organism in the Domestic Waste Leachate after the membrane bioreactor 130 removal degradeds.Make membrane bioreactor 130 can hold back microorganism and suspended substance in the Domestic Waste Leachate by the method, thereby guarantee that membrane bioreactor 130 has lasting ammonia nitrogen removal ability, and then improve the processing efficiency of membrane bioreactor 130.
Step S104 removes at least a portion salt through the Domestic Waste Leachate of described Membrane Bioreactor for Wastewater Treatment to obtain meeting the Domestic Waste Leachate of predetermined emission standard by dish tubular type nanofiltration device 140.So that molecular weight leads to the discharge system at the salt ion of 100-1000 by dish tubular type nanofiltration device 140 and Domestic Waste Leachate one.Avoid thus the hurtful salt of equipment is remained in the equipment, and guarantee Domestic Waste Leachate stable reach constantly emission standard.
The life refuse processing method of the embodiment of the invention is further comprising the steps of:
In conjunction with Fig. 1, a part of Domestic Waste Leachate after dish tubular type nanofiltration device 140 processed returns and is sprayed onto the concentration of described equalizing tank to be used for regulating described Domestic Waste Leachate.Return in the garbage leachate of spray most of salt ion and discharged system, thereby salt causes damage to system when effectively having avoided remaining garbage leachate to return in the system of being sprayed onto, and further improves service life of equipment, and prevent the Domestic Waste Leachate contaminate environment.
In one embodiment of the invention, the method also can utilize gas blower 131 to membrane bioreactor 130 interior air blast.Improve thus the processing efficiency of membrane bioreactor 130.
In further example of the present invention, it is just heavy that the method can also be undertaken by the Domestic Waste Leachate after 150 pairs of adjustings of preliminary sedimentation tank concentration, then be transported in the water collecting basin 160, utilize the Domestic Waste Leachate heating after 161 pairs of water collecting basins of interchanger, 160 interior processes are just sunk, the Domestic Waste Leachate after the heating is transported in the upflow anaerobic sludge blanket reactor 120.
Particularly, filter out suspended substance in the Domestic Waste Leachate by preliminary sedimentation tank 150, avoid thus suspended substance that follow-up equipment is caused damage.Enter the amount of the Domestic Waste Leachate of upflow anaerobic sludge blanket reactor 120 by water collecting basin 160 controls, thereby improve the processing efficiency of upflow anaerobic sludge blanket reactor 120, and avoid upflow anaerobic sludge blanket reactor 120 excess load.
Further, the mud discharging that the method also comprises the mud that will discharge from preliminary sedimentation tank 150, discharge from the mud that gives off of upflow anaerobic sludge blanket reactor 120 with from membrane bioreactor 130 and utilizes the mud in 180 pairs of described sludge sumps of device for dehydrating sladge waste to dewater to sludge sump 170.Thus, avoid mud in preliminary sedimentation tank 150, upflow anaerobic sludge blanket reactor 120 and membrane bioreactor 130, to hoard the too much processing efficiency that affects.In one embodiment of the invention, device for dehydrating sladge waste 180 is the sludge dewatering machine room, and after the sludge dewatering machine room dewatered to mud, residual mud can be used for sludge composting.
Certainly, above-mentioned treatment process of the present invention is not limited to control above-mentioned Domestic Waste Leachate treatment system, is equally applicable to control other Domestic Waste Leachate treatment system.For example, after certain or certain several devices are replaced with other device with similar functions in the above-mentioned Domestic Waste Leachate treatment system, can utilize equally method shown in the present to control, these also should classify protection scope of the present invention as.
According to the house refuse percolate treating method of the embodiment of the invention, can remove the organism more than 80% in the Domestic Waste Leachate by up-flow anaerobic sludge blanket 120, it is obvious to have a degradation effect, and the high advantage of price reduction efficient.When removing ammonia nitrogen, can hold back microorganism and suspended substance in the Domestic Waste Leachate by membrane bioreactor 130, thereby guarantee that membrane bioreactor 130 has lasting ammonia nitrogen removal ability, and then improve the processing efficiency of membrane bioreactor 130.Can make the more salt of molecular weight discharge system's (be the salt ion of 100-1000 such as molecular weight) with Domestic Waste Leachate by dish tubular type nanofiltration device 140, like this, in the garbage leachate the hurtful salt of equipment has been discharged system, salt causes damage to system when effectively having avoided remaining garbage leachate to return in the system of being sprayed onto, so when improving service life of equipment and guarantee Domestic Waste Leachate stable reach constantly emission standard.In addition, the control of the method for the embodiment of the invention is simple, is easy to realize.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment in the situation that does not break away from principle of the present invention and aim, scope of the present invention is by claim and be equal to and limit.

Claims (6)

1. the one way of life garbage percolation liquid treatment method is characterized in that, may further comprise the steps:
In equalizing tank, regulate the concentration of described Domestic Waste Leachate;
By degrade a part of organism of described Domestic Waste Leachate of upflow anaerobic sludge blanket reactor;
By ammonia, nitrogen and another part organism in the Domestic Waste Leachate after the membrane bioreactor removal degraded;
Remove at least a portion salt through the Domestic Waste Leachate of described Membrane Bioreactor for Wastewater Treatment to obtain meeting the Domestic Waste Leachate of predetermined emission standard by dish tubular type nanofiltration device.
2. house refuse percolate treating method according to claim 1 is characterized in that, a part of Domestic Waste Leachate after described dish tubular type nanofiltration device is processed returns and is sprayed onto the concentration of described equalizing tank to be used for regulating described Domestic Waste Leachate.
3. house refuse percolate treating method according to claim 1 is characterized in that, also comprises utilizing gas blower air blast in the described membrane bioreactor.
4. house refuse percolate treating method according to claim 1 is characterized in that, also comprises:
Carry out just heavyly by preliminary sedimentation tank to regulating Domestic Waste Leachate after the concentration, then be transported in the water collecting basin;
Utilize the Domestic Waste Leachate heating after interchanger just sinks to the process in the water collecting basin; With
Domestic Waste Leachate after the heating is transported to described upflow anaerobic sludge blanket reactor.
5. house refuse percolate treating method according to claim 4 is characterized in that, also comprises:
The mud that will give off from the mud that just settles out, from described upflow anaerobic sludge blanket reactor and the mud discharging of discharging from described membrane bioreactor are to sludge sump; With
Utilize device for dehydrating sladge waste that the mud in the described sludge sump is dewatered.
6. house refuse percolate treating method according to claim 1 is characterized in that, by ammonia, nitrogen and another part organism in the Domestic Waste Leachate after the board-like membrane bioreactor removal degraded.
CN2011102842231A 2011-09-22 2011-09-22 Domestic waste leachate treatment method Pending CN103011488A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534364A1 (en) * 1991-09-23 1993-03-31 L & C STEINMUELLER GMBH Purification process for aqueous fluids containing organic and anorganic compounds
CN101219842A (en) * 2008-02-02 2008-07-16 张大群 Technique and equipment for recycling leachate of garbage
CN201553670U (en) * 2009-09-30 2010-08-18 张大群 Equipment for recycling garbage percolate through reverse osmosis desalination multistage pretreatment
CN102134141A (en) * 2010-12-22 2011-07-27 江苏百纳环境工程有限公司 Method for treating garbage leachate
CN102167479A (en) * 2011-03-22 2011-08-31 江苏久吾高科技股份有限公司 Garbage percolate treatment technology
CN102190400A (en) * 2010-03-10 2011-09-21 湖州南太湖环保能源有限公司 Method for applying integrated technology of combination of membrane biochemistry and nanofiltration membrane to high-density leachate advanced treatment and recycling

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534364A1 (en) * 1991-09-23 1993-03-31 L & C STEINMUELLER GMBH Purification process for aqueous fluids containing organic and anorganic compounds
CN101219842A (en) * 2008-02-02 2008-07-16 张大群 Technique and equipment for recycling leachate of garbage
CN201553670U (en) * 2009-09-30 2010-08-18 张大群 Equipment for recycling garbage percolate through reverse osmosis desalination multistage pretreatment
CN102190400A (en) * 2010-03-10 2011-09-21 湖州南太湖环保能源有限公司 Method for applying integrated technology of combination of membrane biochemistry and nanofiltration membrane to high-density leachate advanced treatment and recycling
CN102134141A (en) * 2010-12-22 2011-07-27 江苏百纳环境工程有限公司 Method for treating garbage leachate
CN102167479A (en) * 2011-03-22 2011-08-31 江苏久吾高科技股份有限公司 Garbage percolate treatment technology

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Application publication date: 20130403