CN1528685A - House refuse percolate treating method - Google Patents
House refuse percolate treating method Download PDFInfo
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- CN1528685A CN1528685A CNA031470211A CN03147021A CN1528685A CN 1528685 A CN1528685 A CN 1528685A CN A031470211 A CNA031470211 A CN A031470211A CN 03147021 A CN03147021 A CN 03147021A CN 1528685 A CN1528685 A CN 1528685A
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Abstract
The invention is a life rubbish seep-drip solution processing method, mainly includes the steps: make the first materialization on the raw water of the seep-drip solution, to eliminate the suspended substance; use catalytic oxidation to eliminate organic substance, NH3-N and organic P in the seep-drip solution primarily materialized and converting the macromolecular organic substance into the small molecule structure and further into organic acid; mix the life waste water in factory or other waste water with the seep-drip solution through catalytic oxidation to make blow-off and aeration treatment, thus further reducing NH3-N; make anaerobic and aerobic biochemistries and secondary deposition on the mixed waste water through blow-off and aeration treatment; the three biochemical treatment units can use SBR to treat in the same pond all in one, make the secondary materialization on the seep-drip solution through three biochemical treatments, and then sterilize to reach the national primary effluent standard of seep-drip solution.
Description
Technical field
The present invention relates to domestic refuse and ooze the treatment technology that drop liquid is oozed in drop liquid treatment technology, particularly household refuse landfill sites and waste incineration.
Background technology
Along with urban population growth and scale enlarge gradually, refuse treatment has become one of outstanding environmental issue of city-building.China's townm refuse is based on landfill, and the place that condition is good adopts burning electricity generation quite a few.Consumer waste filling and embedding or burn before ooze drop liquid behind the bulk deposition rubbish fermentation, be a kind of high density, the direct limited organic waste water of biochemical, its composition is very complicated, organic pollutant index COD
Cr(chemical oxygen demand) and BOD
5(biochemical oxygen demand on the 5th) is all very high, COD
CrUp to 6500～65000mg/L, NH
3-N (ammonia nitrogen) concentration is also up to 1500～3500mg/L, and with stench and poisonous fungi.On handling, become the heat subject of thorny and technology exploration both at home and abroad.At present, domestic numerous garbage leachates do not process, and have done processing, at waste landfill site leachate COD
CrUnder≤20000mg/L the prerequisite, with biochemistry with after turning materially the main method processing, can reach country's " domestic refuse is oozed drop liquid emission limit " secondary discharge standard (GB16889-1997), COD through a series of
Cr≤ 300mg/L, NH
3-N≤25mg/L.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point of the prior art and a kind of domestic refuse percolation liquid treatment method that uses for industrialization, the contained COD of garbage leachate after research topic of the present invention is handled be provided
Cr, BOD
5, NH
3-N, SS (suspended substance amount) and total phosphorus all can reach the primary standard of country to the garbage leachate regulation.
Research topic of the present invention is from subitem " the oozing drop liquid handles " pilot scale of national 863 problems " waste incineration and generating electricity ", seminar has found the method that realizes the foregoing invention purpose through exploration for many years finally with research, and proves feasible effective by pilot experiment.
Domestic refuse percolation liquid treatment method of the present invention mainly may further comprise the steps:
1, domestic refuse being oozed drop liquid and carry out the materialization first time, can be coagulating sedimentation, invest minimum, simple to operate, but residence time 2h (hour) more than, the water surface still has floating scum silica frost, the suspended substance of taking away is more; Place with good conditionsi can be a coagulation air-float, promptly adopts air supporting mode solid-liquid separation, stop 40～60min (minute), it is less to go out water suspension.The coagulation mode is to transfer PH 〉=9, adds ferrous sulfate and helps with fixed attention many 15min of coagulating time with a small amount of polyacrylamide.
This unitary purpose is to remove 90% above suspended substance and partial organic substances, NH
3-N and a part of phosphoric acid salt of removal are for subsequent disposal lightens the load.
2, will carry out catalyzed oxidation through the drop liquid that oozes of the materialization first time, be that UV-light, ultrasonic wave, chemistry or electrochemical catalytic oxidation any method wherein is applied, be intended to remove a part of organism that oozes in the drop liquid, and catalyzed oxidation part organonitrogen and organophosphorus, make it mineralising and become CO
2And H
2On the O basis, make residual organic substances hydrolysis (larger molecular organics becomes small molecule structure), the step of going forward side by side carries out acidifying and becomes organic acid, makes BOD from face
5/ COD
CrRatio improves, and biodegradability promotes, and follow-up conventional anaerobism, aerobic biochemical treatment effect are improved.
3, in the factory life and other waste water and through catalytic oxidation treatment ooze that drop liquid mixes and the stripping aeration, make and ooze the contained NH of drop liquid after processed
3-N further reduces; No matter all there are employee's sanitary sewage and cram packer and place flushing sewage in garbage loading embeading and burning electricity generation factory, COD
CrAverage out to 2000mg/L, the very approaching water yield of oozing drop liquid of its water yield, be approximately its 60%～100%, this part water also should be handled, and there is no need to build in addition one and overlaps independently treatment system.The existing denitrification functions of stripping aeration is because former water NH
3-N is dense, needs to remove step by step; Mechanical stirring makes and mixes simultaneously, can adopt perforation tubular type or the blast aeration of aeration hair style, and blast aeration can adopt roots blower to realize that two kinds of water mix.It is intended to make in refuse landfill and the burning electricity generation factory other waste water (containing sanitary sewage) and oozes drop liquid mix after pre-treatment, and one comprehensive treating process simultaneously pretreated oozed drop liquid and certainly will be reduced the subsequent disposal load through dilution.
4, the drop liquid of handling through the stripping aeration that oozes carries out anaerobism, aerobic biochemical and three biochemical treatment unit of secondary sedimentation successively, not only effectively removes solubility and insoluble organism in the waste water, also is denitrogenation and phosphorous removal biochemical process;
Anaerobism is that the anerobe effect makes hydrolysis of organic matter in the waste water, acidifying, generation methane three phases altogether, and method is a lot.To adopt IC (internal-circulation type anaerobic activated sludge bed) in the present invention, it is to develop on the UASB eighties (the upflow type anaerobic active sludge bed) basis abroad, and form is a lot.Its principle is to add internal circulation system in UASB, and not only active sludge and sewage solid, liquid two-phase mix, and are anaerobic zone at the bottom of the tower, and the middle part of tower is the oxygen-starved area, makes a clear distinction between good and evil, and is particularly advantageous in NH
3The nitrated denitrification process that-N removes.The biochemical treatment of high concentrated organic wastewater is to be unable to do without anaerobic.The anaerobism here also can be used other forms, is not limited to a certain method.
Aerobic biochemical is to make the effective degradation process of organism in the waste water under aerobic mushroom effect, and aerobic minute activated sludge process, biomembrance process and the hybrid system that both have both at the same time are effectively removed COD largely in this stage
CrAnd BOD
5, also remove NH
3-N.Simultaneously, after anaerobism section polyP bacteria discharges phosphorus, be transferred at the excessive absorption phosphorus of aerobic section and can remove total phosphorus in the mud.Aerobic process is a lot, can realize with multi-form method.
Secondary sedimentation is after aerobic treatment, presses the design and processes standard, necessary secondary sedimentation, and active sludge or biological mycoderm precipitation that current are taken away, effective natural sedimentation separates the water after the purification with mud.
What must emphasize is, anaerobism, aerobic biochemical and three biochemical treatment unit of secondary sedimentation also can be handled in same pond with SBR with integrating, it is in same pond, and different time sections is advanced water, anaerobism, anoxic, aerobic, precipitation, draining whole process artificially, in an orderly manner.How processing parameter all needs appropriate design and calculating.
5, after composite waste after treatment carries out the materialization second time, carry out germicidal treatment at last, make it to reach national garbage leachate and handle first discharge standard.Materialization for the second time is the water quality of biochemical back water outlet, and is unsettled often, changes with season, non-irrigated rain weather because ooze drop liquid concentration, always the measure of checking on should be set.It with preceding chatted and materialization first time mode the same, can be coagulating sedimentation, preferably coagulation air-float.Add NaOH and transfer PH 〉=8, and can throw aluminium salt, preferably Tai-Ace S 150 or aluminium chlorohydroxide are thrown the minute quantity polyacrylamide thereafter and are helped with fixed attention and get final product.
In each cell processing, most bacteriums are killed in front, and bacterium also becomes anaerobism, aerobic various bacterium organic carbon sources and nutrition in biological process.For reuse, can adopt clorox, dioxide peroxide, ozone or ultraviolet mode sterilization.
Treatedly ooze drop liquid after up to standard, can be back to and wash dumper, road, flush the toilet and afforest, the superfluous water discharging.1 yuan in every cubic metre of tap water～do not wait more than 2 yuan, province's water rate of reuse makes oozes the corresponding minimizing of drop liquid handling.
Waste incineration and generating electricity, waste gas has SO
2, NO
x(oxynitride) is with obnoxious flavoures such as dioxin, and the water of wet processing can utilize the water after the sewage disposal, and the waste water that absorbs behind the waste gas can enter combination treatment in the sewage disposal mixed denitrification aeration tank again.Good environment-friendly treating process is answered the comprehensive regulation and is utilized resource.The garbage leachate processing does not more and more allow not control and arranges, and can not be satisfied with secondary discharge standard more yet, and the wastewater treatment of many big and medium-sized cities requires generally to carry out national composite wastewater discharging primary standard or local secondary standard.Therefore, it is imperative to reach the relevant first discharge standard of garbage leachate.Simultaneously, disposable input of facility and working cost also are processing method feasibility performance assessment criteria.
Table 1 is a garbage leachate treatment effect comparison sheet, the COD in the subordinate list
CrBe chemical oxygen demand, NH
3-N is an ammonia nitrogen.
Table 1 garbage leachate treatment effect comparison sheet
| Project | Before handling (mg/L) | Handle back (mg/L) | Waste water running cost (unit/cubic meter) | ||
| ??COD Cr??≤ | ??NH 3-N ??≤ | ????COD Cr????≤ | ??NH 3-N ??≤ | ||
| Waste landfill site leachate | ??20000 | ??1500 | ????100 | ??15 | About 10 |
| Garbage incinerating power plant oozes drop liquid | ??50000 | ??2500 | ????100 | ??15 | About 15 |
As can be seen from the table, every contamination index of the former water of garbage leachate all is higher than the emission standard of regulation far away, and the former water of garbage leachate is after method of the present invention is handled, and its every contamination index all reaches the first discharge standard that national garbage leachate is handled.
Description of drawings
Fig. 1 is first kind of process flow sheet of the present invention.
Fig. 2 is second kind of process flow sheet of the present invention.
Embodiment
Embodiment 1: the subitem of national 863 problems " waste incineration and generating electricity " " oozing drop liquid handles " pilot scale, experimental size O.02M
3/ H (cubic meter/hour), 0.48M
3/ D (cubic meter/sky).Adopt first kind of processing method of the present invention, its flow process as shown in Figure 1.The water sample garbage incinerating power plant heap garbage percolate of experiment, concentration C OD
Cr25000mg/L～45000mg/L.Above-mentioned domestic refuse is oozed drop liquid carry out the materialization first time, remove suspended substance and send into next treatment process; Will through the materialization first time ooze drop liquid catalysed oxidation processes, remove the partial organic substances of oozing in the drop liquid, and decompose organonitrogen and organophosphorus, and make larger molecular organics become small molecule structure, further become organic acid, realize hydrolysis-acidifying, make BOD
5/ COD
CrThereby improve biodegradability; In the factory life and other waste water and through catalytic oxidation treatment ooze that drop liquid mixes and the stripping aeration, make and ooze the contained NH of drop liquid after processed
3-N further reduces; Carry out successively entering next treatment process after anaerobism, aerobic biochemical and secondary sedimentation are handled through the composite waste that the stripping aeration is handled; After composite waste after treatment carries out the materialization second time, carry out germicidal treatment again, make it to reach national garbage leachate first discharge standard.Test result is as shown in table 2:
Table 2 garbage leachate is handled test result
| Project | Before handling (mg/L) | Handle back (mg/L) | Clearance (%) | |||
| ??COD Cr | ??NH 3-N | ??COD Cr | ??NH 3-N | ???COD Cr | ??NH 3-N | |
| Drop liquid is oozed in waste incineration | ??41600 | ??1128 | ??92 | ??12 | ???99.78 | ??98.94 |
Embodiment 2: the subitem of national 863 problems " waste incineration and generating electricity " " oozing drop liquid handles " pilot scale, experimental size 0.02M
3/ H, 0.48M
3/ D.Adopt second kind of processing method of the present invention, its flow process as shown in Figure 2.The water sample garbage incinerating power plant heap garbage percolate of experiment, concentration C OD
Cr25000mg/L～45000mg/L.Above-mentioned domestic refuse is oozed drop liquid carry out the materialization first time, remove suspended substance and send into next treatment process; Will through the materialization first time ooze drop liquid catalysed oxidation processes, remove the partial organic substances of oozing in the drop liquid, and decompose organonitrogen and organophosphorus, and make larger molecular organics become small molecule structure, further become organic acid, realize hydrolysis-acidifying, make BOD
5/ COD
CrThereby improve biodegradability; In the factory life and other waste water and through catalytic oxidation treatment ooze that drop liquid mixes and the stripping aeration, make and ooze the contained NH of drop liquid after processed
3-N further reduces; After the composite waste that the stripping aeration is handled is handled with the SBR method, flow into the transition pond certainly and enter next treatment process; After composite waste after treatment carries out the materialization second time, carry out germicidal treatment again, make it to reach national garbage leachate first discharge standard.Test result is as shown in table 3:
Table 3 garbage leachate is handled test result
| Project | Before handling (mg/L) | Handle back (mg/L) | Clearance (%) | |||
| ??COD Cr | ??NH 3-N | ??COD Cr | ??NH 3-N | ??CODC | ??NH 3-N | |
| Drop liquid is oozed in waste incineration | ??38500 | ??908 | ??95.6 | ??13.5 | ??99.75 | ??98.51 |
Claims (2)
1, a kind of domestic refuse is oozed the treatment process of drop liquid, it is characterized in that this method may further comprise the steps:
(1) domestic refuse is oozed drop liquid and carry out the materialization first time, remove suspended substance and send into next treatment process;
(2) will through the materialization first time ooze drop liquid catalysed oxidation processes, remove the partial organic substances of oozing in the drop liquid, and decompose organonitrogen and organophosphorus, and make larger molecular organics become small molecule structure, further become organic acid, realize hydrolysis-acidifying, make BOD
5/ COD
CrThereby improve biodegradability;
(3) in the factory life and other waste water and through catalytic oxidation treatment ooze that drop liquid mixes and the stripping aeration, make and ooze the contained NH of drop liquid after processed
3-N further reduces;
(4) carry out successively entering next treatment process after anaerobism, aerobic biochemical and secondary sedimentation are handled through the composite waste that the stripping aeration is handled;
(5) after composite waste after treatment carries out the materialization second time, carry out germicidal treatment again, make it to reach national garbage leachate first discharge standard.
2, a kind of domestic refuse is oozed the treatment process of drop liquid, it is characterized in that this method may further comprise the steps:
(1) domestic refuse is oozed drop liquid and carry out the materialization first time, remove suspended substance and send into next treatment process;
(2) will through the materialization first time ooze drop liquid catalysed oxidation processes, remove the partial organic substances of oozing in the drop liquid, and decompose organonitrogen and organophosphorus, and make larger molecular organics become small molecule structure, further become organic acid, realize hydrolysis-acidifying, make BOD
5/ COD
CrThereby improve biodegradability;
(3) in the factory life and other waste water and through catalytic oxidation treatment ooze that drop liquid mixes and the stripping aeration, make and ooze the contained NH of drop liquid after processed
3-N further reduces;
(4) after the composite waste that the stripping aeration is handled is handled with the SBR method, flow into the transition pond certainly and enter next treatment process;
(5) after composite waste after treatment carries out the materialization second time, carry out germicidal treatment again, make it to reach national garbage leachate first discharge standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031470211A CN1325400C (en) | 2003-09-30 | 2003-09-30 | House refuse percolate treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031470211A CN1325400C (en) | 2003-09-30 | 2003-09-30 | House refuse percolate treating method |
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| Publication Number | Publication Date |
|---|---|
| CN1528685A true CN1528685A (en) | 2004-09-15 |
| CN1325400C CN1325400C (en) | 2007-07-11 |
Family
ID=34286735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031470211A Expired - Fee Related CN1325400C (en) | 2003-09-30 | 2003-09-30 | House refuse percolate treating method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323039C (en) * | 2005-09-14 | 2007-06-27 | 北京天地人环保科技有限公司 | Apparatus and method for disposing refuse leachate from household refuse burning factory |
| CN100418907C (en) * | 2006-04-30 | 2008-09-17 | 张家彪 | Method and device for treating garbage percolation sewage using composite dieselguhr |
| CN101665307B (en) * | 2009-09-11 | 2011-06-22 | 广州市市政工程设计研究院 | Rubbish leachate treatment method |
| CN102363548A (en) * | 2011-06-20 | 2012-02-29 | 上海明诺环境科技有限公司 | Treatment system for non-membrane garbage leachate |
| CN102583908A (en) * | 2012-03-22 | 2012-07-18 | 南京工业大学 | Garbage leachate treatment process |
| CN104230081A (en) * | 2014-07-16 | 2014-12-24 | 湖北仙隆化工股份有限公司 | Paraquat pesticide wastewater treatment process |
| CN104386885A (en) * | 2014-12-05 | 2015-03-04 | 任宗炬 | Urban domestic garbage leachate treatment method |
| CN109320005A (en) * | 2018-04-27 | 2019-02-12 | 天津市尖峰天然产物研究开发有限公司 | A kind of useless water purification device of anthocyanidin production |
| CN109320004A (en) * | 2018-04-27 | 2019-02-12 | 天津市尖峰天然产物研究开发有限公司 | A kind of useless water purification method of anthocyanidin production |
| CN110255765A (en) * | 2019-06-27 | 2019-09-20 | 长沙紫宸科技开发有限公司 | A kind of rubbish leachate recycling recovery energy method |
| CN111285554A (en) * | 2020-03-21 | 2020-06-16 | 杭州师范大学钱江学院 | Method for deep purification treatment of landfill leachate |
| CN113548768A (en) * | 2021-07-02 | 2021-10-26 | 北京津工海水科技有限公司 | Deep treatment method for DTRO discharged garbage penetration accumulated liquid |
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| JP2000354892A (en) * | 1999-06-15 | 2000-12-26 | Nkk Corp | Treatment apparatus of hardly decomposable organic matter-containing water |
| JP2001047062A (en) * | 1999-08-09 | 2001-02-20 | Kurita Water Ind Ltd | Treatment of leachate from landfill site |
| CN1230389C (en) * | 2000-02-15 | 2005-12-07 | 韩国科学技术研究院 | Method and device for treating high concentration waste water |
| JP2002011498A (en) * | 2000-06-28 | 2002-01-15 | Atlas:Kk | Device for treating leachate |
| CN1410374A (en) * | 2001-09-29 | 2003-04-16 | 成都市环境保护科学研究所 | Garbage percolation liquid treatment method |
| CN1220637C (en) * | 2002-12-16 | 2005-09-28 | 华中科技大学 | Technology for treating and controlling waterlogging in refuse bury field |
| KR100518722B1 (en) * | 2003-01-21 | 2005-10-04 | 서희동 | Method of garbage treatment |
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- 2003-09-30 CN CNB031470211A patent/CN1325400C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1323039C (en) * | 2005-09-14 | 2007-06-27 | 北京天地人环保科技有限公司 | Apparatus and method for disposing refuse leachate from household refuse burning factory |
| CN100418907C (en) * | 2006-04-30 | 2008-09-17 | 张家彪 | Method and device for treating garbage percolation sewage using composite dieselguhr |
| CN101665307B (en) * | 2009-09-11 | 2011-06-22 | 广州市市政工程设计研究院 | Rubbish leachate treatment method |
| CN102363548A (en) * | 2011-06-20 | 2012-02-29 | 上海明诺环境科技有限公司 | Treatment system for non-membrane garbage leachate |
| CN102583908A (en) * | 2012-03-22 | 2012-07-18 | 南京工业大学 | Garbage leachate treatment process |
| CN102583908B (en) * | 2012-03-22 | 2013-09-04 | 南京工业大学 | Garbage leachate treatment process |
| CN104230081A (en) * | 2014-07-16 | 2014-12-24 | 湖北仙隆化工股份有限公司 | Paraquat pesticide wastewater treatment process |
| CN104230081B (en) * | 2014-07-16 | 2016-08-31 | 湖北仙隆化工股份有限公司 | A kind of N,N'-dimethyl-.gamma..gamma.'-dipyridylium pesticides waste water treatment process |
| CN104386885A (en) * | 2014-12-05 | 2015-03-04 | 任宗炬 | Urban domestic garbage leachate treatment method |
| CN104386885B (en) * | 2014-12-05 | 2016-03-23 | 任宗炬 | A kind for the treatment of process of city domestic refuse percolation liquid |
| CN109320005A (en) * | 2018-04-27 | 2019-02-12 | 天津市尖峰天然产物研究开发有限公司 | A kind of useless water purification device of anthocyanidin production |
| CN109320004A (en) * | 2018-04-27 | 2019-02-12 | 天津市尖峰天然产物研究开发有限公司 | A kind of useless water purification method of anthocyanidin production |
| CN110255765A (en) * | 2019-06-27 | 2019-09-20 | 长沙紫宸科技开发有限公司 | A kind of rubbish leachate recycling recovery energy method |
| CN111285554A (en) * | 2020-03-21 | 2020-06-16 | 杭州师范大学钱江学院 | Method for deep purification treatment of landfill leachate |
| CN113548768A (en) * | 2021-07-02 | 2021-10-26 | 北京津工海水科技有限公司 | Deep treatment method for DTRO discharged garbage penetration accumulated liquid |
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