CN100348520C - Technique for treating garbage percolate based on diatomite and UASB - Google Patents
Technique for treating garbage percolate based on diatomite and UASB Download PDFInfo
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- CN100348520C CN100348520C CNB2005102004154A CN200510200415A CN100348520C CN 100348520 C CN100348520 C CN 100348520C CN B2005102004154 A CNB2005102004154 A CN B2005102004154A CN 200510200415 A CN200510200415 A CN 200510200415A CN 100348520 C CN100348520 C CN 100348520C
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Abstract
The present invention discloses a method for disposing refuse leachate by using bergmeal and UASB as the core. The refuse leachate is firstly collected in an anaerobic pond for preliminary precipitation and anaerobic reaction, then conveys to the UASB for anaerobic treatment, and conveys to an inner electrolytic reactor for iron chips inner electrolytic treatment; the bergmeal is used for flocculating and sedimentation pollutants in the water in an incorporated clarification tank, the leachate conveys to an A< 2 >O tank and a sedimentation tank, and conveys to the incorporated clarification tank to add to the bergmeal through aerobic reaction and sedimentation, and the leachate is further purifyed, finally conveys the leachate to an incorporated film treater, and is discharged after treatment in a film method. The present invention has the advantage of the traditional technology, simultaneously compensates for shortage of each processing technology, and simultaneously has the characteristics of low investment, small occupation of land, low running cost, low secondary cost, short construction period, etc.
Description
Technical field:
The present invention relates to a kind of method and device that is the treating refuse percolate of core with diatomite and UASB, belong to technical field of sewage.
Background technology:
The processing of percolate is the big problem that urban environment is administered always, and the quality that percolate is handled is closely bound up with the citizen of entire city.But the sanitary sewage wide material sources, pollutent is many, deals with the cost height, difficulty is big, especially in the city from the percolate of all trades and professions, its complicated component, pollutent is various, also has a large amount of hazardous and noxious substances, is difficult to handle.Existing sewage treatment method is summed up and is mainly contained physico-chemical processes and biochemical process two big classes.
Physico-chemical processes: what physico-chemical processes was most widely used is exactly flocculation, its advantage be investment little, take up an area of less, save energy, equipment are simply removed heavy metal, phosphorus, colourity are effective, and instant effect, working cost can not be subjected to the influence of former water water yield size.But shortcoming is low to the clearance of organism and nitrogen.And traditional flocculation agent does not have removal effect preferably to the solvability BOD in the waste water, needs auxiliary biochemical processing process as follow-up or pretreatment technology.
Biochemical process comprises anaerobic and aerobic: general biochemical processing process is comparatively ripe, and organic pollutant and nutritive substance and the nitrogen etc. removed in the sewage have certain effect.Outputted aerobic water water quality is good, direct qualified discharge, but working cost is too high, and the too for a short time floor space that causes of volumetric loading is big, anaerobic treatment process does not consume energy, the volumetric loading height, and the pond body bulk is little, the anti-shock loading height, but water outlet generally can not be directly up to standard, need connect subsequent treatment process.
Diatomite (Diatemite): be a kind of biogenic silicastone, mainly by diatom (a kind of single celled hydrobiontic algae) remains and the fixed placer deposits that forms of ooze.Have the porosity height, characteristic such as specific surface area is big, adsorptivity is strong, light weight, firm, sound insulation, heat insulation, wear-resisting, acidproof and heat conductivity are low.Coagulate the precipitation net benefit effect of agent.In sewage disposal, diatomite mainly contains following four effects:
1, similar to traditional flocculation agent, diatomite exists under the ionic situation in the water body the inside, can form a large amount of diatomite vanadium flowers, the vanadium flower is in the process that forms, by colloidal entrainment mutually, effect such as crane span structure, compression, to the SS in the water body, the colloidal organic pollution materials is removed.
2, diatomaceous adsorption is understood that, diatomite has very big specific surface area, has very big surface energy, can adsorb a lot of impurity, comprises the organic substance in the water, SS, ion or the like.This effect just just was used during at the invention explosive by famous chemist Nobel as far back as 19th century.
3, diatomaceous filteration.One diatomite is cylinder shape, all is nano level micropore at diatomaceous center,
In the waste water operation, diatomite forms the thick suspended sludge of 3-4 rice in the bottom of circulatior clarifier, when waste water passes through the suspended sludge layer from bottom to top, the larger molecular organics matter of waste water is just got off by nano level millipore filtration, and this is to be essentially different with traditional flocculant treating process.This acts on when making draft beer, has obtained sufficient embodiment.
4, diatomite is separated out the effect of organism colloidal.Diatomite will be removed separating with the symbiotic impurity of diatom in refining process, makes this Balanced current potential of diatom surface form uneven current potential like this.Diatomaceous uneven current potential destroys water-borne glue body material charge stable on every side, makes the organism elimination of colloid stability, and the effect of separating out.
Summary of the invention:
The objective of the invention is to: provide a kind of and can handle the composition complex wastewater, and treatment effect good be the method and the device of the treating refuse percolate of core with diatomite and UASB, to overcome the deficiencies in the prior art.
The present invention realizes like this, of the present invention is that the method for the treating refuse percolate of core is with diatomite and UASB: at first percolate is collected in and carries out preliminary sedimentation and anaerobic reaction in the anaerobic pond 1, send into then among the UASB2 (upflow anaerobic sludge blanket reactor) and carry out anaerobic treatment, and then carry out electrolysis treatment in the iron filings in entering in the electrolysis reactor 3, in integrated settling pond 4, utilize diatomite to make the pollutent in the water flocculate, precipitate then, again percolate is sent into A
2O pond 5 and settling tank 6 through aerobic reaction and post precipitation, are sent into integrated settling pond 7 once more and are added diatomite, further purify percolate, at last percolate are sent into integrated film treatment facility 8, can discharge after the employing embrane method is handled.
Aforesaid is the method for the treating refuse percolate of core with diatomite and UASB, and the content of its diatom of diatomite of employing is more than 92%.
Of the present invention is the device of the treating refuse percolate of core with diatomite and UASB, and it is by anaerobic pond 1, UASB2, interior electrolysis reactor 3, integrated settling pond 4, A
2O pond 5, settling tank 6, integrated settling pond 7 and integrated film treatment facility 8 are formed, and anaerobic pond 1 is connected with UASB2, and UASB2 is connected with interior electrolysis reactor 3 by pipeline, and the back of interior electrolysis reactor 3 connects integrated settling pond 4, integrated settling pond 4 and A
2O pond 5 connects A
2O pond 5 is connected with settling tank 6, settling tank 6 is connected with integrated settling pond 7 by pipeline, connects integrated film treatment facility 8 in the back of integrated settling pond 7.
Aforesaid is the device of the treating refuse percolate of core with diatomite and UASB, in integrated settling pond 4, be provided with a reaction zone 9, two reaction zones 10, mud back-mixing district 11, settling region 12 and filtrating area 13, inlet channel 14 be connected at integrated settling pond 4 intermediary one reaction zone 9, be provided with two reaction zones 10 in the outside of a reaction zone 9, it below two reaction zones 10 mud back-mixing district 11, the outside in mud back-mixing district 11 is provided with settling region 12, is provided with filtrating area 13 on settling region 12.
Aforesaid is the device of the treating refuse percolate of core with diatomite and UASB, UASB2 comprises housing 15, be provided with housing main reactor 16 and water distribution system 17 below in housing 15, above housing main reactor 16 and water distribution system 17, also be provided with triphase separator 18.
The present invention adopts diatomite and UASB that sewage is handled, can fully effectively remove all contaminations matter in the percolate, and deliquescent COD, BOD and N, P there is good effect of removing, be not subjected to the influence of hazardous and noxious substances in the waste water, be fit to the processing of complicated waste water, handle such as percolate, simultaneously other sanitary sewages are also had good treatment effect.The technology that the present invention adopts not only has good removal effect, but also fully takes into account the processing feature or the requirement of each treatment process, makes to be connected good between each processing unit.Such as the anaerobism water outlet owing to have higher dissolved gas and voltaile fatty acid (VFA) and a higher SS, so if the water outlet after the anaerobic treatment directly enters the aerobic treatment unit, be easy to cause the phenomenon in the full pond of sludge bulking and foam in the Aerobic Pond, so electrolysis process and diatomite technology are placed between anaerobic technique and the aerobic process, play the effect of objectionable impuritiess such as stripping, electrolysis, decolouring, raising biochemical, removal SS and heavy metal, guarantee the treatment effect of aerobic process.Equally, between aerobic process and membrane method treating process, add diatomite technology, not only further purified the percolate of handling, reduce the content of COD, SS, colourity in the percolate, and guaranteed that embrane method processing unit influent quality satisfies the requirement of embrane method treatment facility, prolonged the life-span of embrane method treatment facility.Therefore, the present invention has adopted elder generation and then exclusive treatment process combination, has guaranteed the success processing up to standard of this used water difficult to degradate of percolate.
Be the contrast of the present invention and existing sewage water treatment method relative merits below:
| Method | Advantage | Shortcoming |
| Biochemical process | Percolate is handled and is adapted to by force, and TN, TP, 80D clearance height have the design variable and the operational management experience of mature and reliable. | Investment is big, and occupation of land is many, the technical process complexity, complicated operation, the temperature control requirement height, the working cost complexity is to degree water toxicity sensitivity. |
| Chemical method | Invest for a short time, take up an area of fewly, power consumption is low, and equipment is simple, removes heavy metal, phosphorus is effective. | Dosage is big, and coagulation speed is slow, and the processing cost height is bad to solvability, small molecules 80D treatment effect. |
| Diatomite and UASB method | Effluent characteristics is good, water conditioning, and running cost is low, small accommodation area, the engineering quadratic cost is low, less investment. | Also other technologies must be arranged as a supplement for some trade effluents. |
The present invention is on the advantage basis of affirming traditional technology, at its limitation, through long term studies, treatment process of the present invention and device have been created, the overall merit that had both had traditional technology, remedied the deficiency of each treatment technology simultaneously, characteristics such as also having reduced investment simultaneously, take up an area of less, working cost is low, quadratic cost is few, the duration is short.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the structural representation of the integrated settling pond of the present invention;
Accompanying drawing 3 is the structural representation of UASB of the present invention.
Embodiment:
Embodiments of the invention: the present invention can build anaerobic pond 1 in the household refuse landfill sites lower end, a UASB2 (upflow anaerobic sludge blanket reactor) is installed then, UASB2 is a kind of anaerobic reactor of compact construction, electrolysis reactor 3 in the UASB2 back connects an efficient catalytic then, build an integrated settling pond 4 again, build aerobic reaction processing unit A in the back of integrated settling pond 4
2 O pond 5 and settling tank 6, build an integrated settling pond 7 then in settling tank 6 back, the integrated settling pond 7 last integrated film treatment facilities 8 that connect, integrated film treatment facility 8 can adopt homemade CTA-NF (energy-saving low desalination reverse osmosis) composite membrane as nanofiltration membrane component.
In integrated settling pond 4, be divided into a reaction zone 9, two reaction zones 10, mud back-mixing district 11, settling region 12 and filtrating area 13, inlet channel 14 be connected at integrated settling pond 4 intermediary one reaction zone 9, in the outside of a reaction zone 9 is two reaction zones 10, it below two reaction zones 10 mud back-mixing district 11, the outside in mud back-mixing district 11 is provided with settling region 12, is provided with filtrating area 13 on settling region 12.
UASB2 comprises housing 15, housing main reactor 16 and water distribution system 17 is installed below in housing 15, above housing main reactor 16 and water distribution system 17 triphase separator 18 is installed also.
During processing, earlier percolate is collected in preliminary sedimentation and anaerobic reaction in the anaerobic pond 1, send into then and carry out anaerobic treatment among the UASB2, percolate feeds in the housing main reactor 16 by water distribution system 17, with the strong anaerobic sludge reaction of a large amount of particles, and then will react the biogas, waste water and the mud that generate by triphase separator 18 and separate.
The advantage of UASB2 is the formation of granule sludge, and the mud with good cohesion and sedimentation function forms granule sludge at reactor bottom, waste water from reactor bottom enter with granule sludge carry out thorough mixing contact the back by the microbiological degradation the mud.Because the granule sludge water ratio is little, to go out under the water flow velocity chance with the water emersion very little higher, make and always keep very high biological concentration in the reactor, and the muddy water rate of mass transfer of granule sludge is very high, and has a not advantage such as anti-load impact ability, mud stabilizing power of comparability of floc sludge, make UASB2 have many, the volumetric loading rate height of reaction biomass, equipment is simple, advantages such as convenient management.
Percolate after process UASB2 handles is sent into and is carried out electrolysis treatment in the iron filings in the efficient catalytic in the electrolysis reactor 3, in percolate, add the content of diatom then at the diatomite more than 92%, enter the reaction zone 9 from the below by inlet channel 14, top from a reaction zone 9 flows into two reaction zones 10 again, because the bottom upflow velocity of two reaction zones 10 is very fast, mud has ascendant trend, and on the top of two reaction zones 10, increase along with basal area, upflow velocity reduces, mud has a declining tendency, can reach balance in some stagnation point risings and downtrending like this, forming a sludge interface clearly, is dense mud back-mixing district 11 below sludge interface, when percolate passes through from bottom to top, mud in the mud back-mixing district 11 plays good filteration to the pollution substance in the percolate, intensifying treatment effect, the dosage of minimizing flocculation agent reduces working cost.Percolate flows out from filtrating area 13 through 12 backs, settling region then, finishes the treating processes of integrated settling pond 4.
To send into A at the percolate that integrated settling pond 4 was handled
2 O pond 5 and settling tank 6 through aerobic reaction and post precipitation, are sent into integrated settling pond 7 once more and are added diatomite, further purify percolate, and its treating processes is identical with integrated settling pond 4.At last percolate is sent into integrated film treatment facility 8, got final product qualified discharge after the employing embrane method is handled.
Claims (5)
1. one kind is the method for the treating refuse percolate of core with diatomite and UASB, it is characterized in that: at first percolate is collected in the anaerobic pond (1) and carries out preliminary sedimentation and anaerobic reaction, send into then among the UASB (2) and carry out anaerobic treatment, enter again and carry out electrolysis treatment in the iron filings in the interior electrolysis reactor (3), in integrated settling pond (4), utilize diatomite to make the pollutent in the water flocculate, precipitate, again percolate is sent into A
2O pond (5) and settling tank (6) through aerobic reaction and post precipitation, are sent into integrated settling pond (7) once more and are added diatomite, further purify percolate, at last percolate are sent into integrated film treatment facility (8), can discharge after the employing embrane method is handled.
2. the method that is the treating refuse percolate of core with diatomite and UASB according to claim 1 is characterized in that: the content of its diatom of diatomite of employing is more than 92%.
One kind as claimed in claim 1 be the device of the treating refuse percolate method of core with diatomite and UASB, it is by anaerobic pond (1), UASB (2), interior electrolysis reactor (3), integrated settling pond (4), A
2O pond (5), settling tank (6), integrated settling pond (7) and integrated film treatment facility (8) are formed, it is characterized in that: anaerobic pond (1) connects UASB (2), UASB (2) is connected with interior electrolysis reactor (3) by pipeline, the back of interior electrolysis reactor (3) connects integrated settling pond (4), integrated settling pond (4) and A
2O pond (5) connects, A
2O pond (5) is connected with settling tank (6), settling tank (6) is connected with integrated settling pond (7) by pipeline, connects integrated film treatment facility (8) in the back of integrated settling pond (7).
4. according to claim 3 is the device of the treating refuse percolate method of core with diatomite and UASB, it is characterized in that: in integrated settling pond (4), be provided with a reaction zone (9), two reaction zones (10), mud back-mixing district (11), settling region (12) and filtrating area (13), inlet channel (14) be connected at integrated settling pond (4) intermediary one reaction zone (9), be provided with two reaction zones (10) in the outside of a reaction zone (9), it below two reaction zones (10) mud back-mixing district (11), be provided with settling region (12) in the outside in mud back-mixing district (11), on settling region (12), be provided with filtrating area (13).
5. according to claim 3 is the device of the treating refuse percolate method of core with diatomite and UASB, it is characterized in that: UASB (2) comprises housing (15), below in housing (15) is provided with housing main reactor (16) and water distribution system (17), also is provided with triphase separator (18) in the top of housing main reactor (16) and water distribution system (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005102004154A CN100348520C (en) | 2005-07-20 | 2005-07-20 | Technique for treating garbage percolate based on diatomite and UASB |
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| CNB2005102004154A CN100348520C (en) | 2005-07-20 | 2005-07-20 | Technique for treating garbage percolate based on diatomite and UASB |
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| CN1730415A CN1730415A (en) | 2006-02-08 |
| CN100348520C true CN100348520C (en) | 2007-11-14 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393634C (en) * | 2006-04-30 | 2008-06-11 | 张家彪 | Composite dieselguhr coagulation aid used for garbage percolation sewage treatment |
| CN101805095B (en) * | 2010-03-25 | 2012-09-19 | 深圳清华大学研究院 | Method for treating and recycling leachate in garbage transfer station |
| CN102285740A (en) * | 2010-06-21 | 2011-12-21 | 天津科技大学 | Non-waste treatment method for garbage leachate |
| CN101863598B (en) * | 2010-06-28 | 2012-05-23 | 深圳市龙澄高科技环保有限公司 | Method for treating city garbage leachate |
| CN102249501B (en) * | 2011-07-15 | 2013-03-27 | 波鹰(厦门)科技有限公司 | Device and method for treating wastewater produced by hair-product manufacturing |
| CN102329051B (en) * | 2011-09-02 | 2013-07-17 | 陈勇 | Rubbish percolate treatment device by taking advanced oxidation and comprehensive membrane treatment as cores |
| CN103011491A (en) * | 2011-09-27 | 2013-04-03 | 贵州远达环保工程有限公司 | Landfill leachate treatment technology by catalysis-anaerobic-electrocoagulation (AMC) |
| CN105016801B (en) * | 2015-07-03 | 2018-04-17 | 上海工程技术大学 | Waste of vegetables and fruits integrated processing technique |
| CN110240357A (en) * | 2019-06-17 | 2019-09-17 | 重庆耐德环境技术有限公司 | A kind of processing equipment and method of landfill leachate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5110459A (en) * | 1990-08-03 | 1992-05-05 | B & B W/W, Inc. | Septage anaerobic treatment batch processing |
| KR20010076873A (en) * | 2000-01-27 | 2001-08-17 | 김창원 | Organic and nitrogen compound removal methods from landfill leachate using an anaerobic-aerobic-anoxic system |
| CN1554602A (en) * | 2003-12-26 | 2004-12-15 | 南京海顿环保技术有限公司 | Method for treating garbage percolation liquid |
| CN1587124A (en) * | 2004-09-14 | 2005-03-02 | 北京大学 | Garbage percolation liquid treating system and method |
-
2005
- 2005-07-20 CN CNB2005102004154A patent/CN100348520C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5110459A (en) * | 1990-08-03 | 1992-05-05 | B & B W/W, Inc. | Septage anaerobic treatment batch processing |
| KR20010076873A (en) * | 2000-01-27 | 2001-08-17 | 김창원 | Organic and nitrogen compound removal methods from landfill leachate using an anaerobic-aerobic-anoxic system |
| CN1554602A (en) * | 2003-12-26 | 2004-12-15 | 南京海顿环保技术有限公司 | Method for treating garbage percolation liquid |
| CN1587124A (en) * | 2004-09-14 | 2005-03-02 | 北京大学 | Garbage percolation liquid treating system and method |
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