CN202430086U - Device for synthesizing and treating landfill leachate - Google Patents
Device for synthesizing and treating landfill leachate Download PDFInfo
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- CN202430086U CN202430086U CN2011204117868U CN201120411786U CN202430086U CN 202430086 U CN202430086 U CN 202430086U CN 2011204117868 U CN2011204117868 U CN 2011204117868U CN 201120411786 U CN201120411786 U CN 201120411786U CN 202430086 U CN202430086 U CN 202430086U
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Abstract
A device for synthesizing and treating landfill leachate comprises a landfill leachate treatment system including an adjusting hydrolytic pool (1), an electrochemistry pre-oxidization system (2), a biological anaerobic floating bed system (3), a middle sedimentation pool (4), a photocatalytic decomposing system (5) and a biological aerobic floating bed system (7), which form a loop. Aiming at the water quality characteristics of the landfill leachate, the device carries out electrochemistry pre-oxidization treatment, biological anaerobic floating bed treatment, photocatalytic decomposing treatment and biological aerobic floating bed treatment, so that the removal ratio of TN is larger than or equal to 98 percent, the removal ratio of TP is larger than or equal to 95 percent, the removal ratio of COD is larger than or equal to 99 percent, the investment on waste water is reduced by 20 percent per ton; and the wastewater treatment cost is reduced by 50 percent per ton.
Description
Technical field
The present invention relates to a kind of to the synthetic Technology of handling of percolate; The synthetic treatment process of particularly handling to the percolate of comprehensive rubbish transfer, waste incineration, garbage loading embeading uses this technology effectively to remove the noxious pollutant in the high density pollution water body.
Background technology
China handles refuse leachate and starts late, and is main with ammonia stripping+anaerobism+aerobic mainly originally, running cost higher (15～20 yuan/ton), and water outlet generally can reach the percolate grade III Standard.After 2000, because rapid development of economy, newly-built percolate treatment plant is generally away from the city, and percolate does not have condition to enter municipal sewage pipe network, so the yet corresponding raising of processing requirements, generally need handle secondary even first discharge standard.The percolate of this moment is if only depend on biological treatment can't reach processing requirements, generally takes to carry out a biological disposal upon+method of advanced treatment.Representational case history has Xinfeng, Guangzhou, Chongqing Chang Shengqiao etc.What Xinfeng, Guangzhou percolate treatment plant adopted is the UASB+SBR+ ro treatment technology, and treatment scale is 500m
3/ d, about 6,000 ten thousand (close ton waste water and invest 120,000 yuan) of construction investment, the about 25 yuan/m of processing cost
3What Chongqing Chang Shengqiao percolate treatment plant adopted is the treatment process of r-o-, treatment scale 500m
3/ d, about 3,700 ten thousand (close ton waste water and invest 7.4 ten thousand yuan) of construction investment, the about 10 yuan/m of processing cost
3Because percolate has than big-difference and instability with general sewage, cause to be faced with in the membrane Bio-reactor Technology evolution and hinder its difficult problem of applying.
Under the condition of present film product-feed situation at home and standard design requirements; Confirm that the maximum economic flow that membrane bioreactor is used for WWT is that a problem demanding prompt solution is: the film cost is high, the life-span is short, pollution, is to influence the important factor that can membrane bioreactor be applied; Handle not thoroughly, the liquid concentrator that film handle to produce also needs further to handle.Membrane bioreactor will be according to different water quality and processing requirements, aerobicly combine with the anaerobe wastewater processing technology with various with different films and membrane module, and processing power and durability against pollution is restricted.
The inventor is through utilizing the pre-oxidation treatment of electrochemical techniques as percolate; Long chain molecule structural material in the percolate is carried out preoxidation open loop chain rupture; Collaborative anaerobe floating bed carries out biological denitrification to be handled, and makes organic pollutant obtain degraded, carries out the secondary oxidation decomposition with photocatalysis oxidation technique the TN in the sewage is effectively removed; The oxidation biological floating movable bed that is combined carries out biological nitration to be handled, and TN, TP, COD in the water body are effectively degraded.
Summary of the invention
The present invention is directed to that the investment that exists in the prior art is bigger than normal, running cost is higher and unsettled defective of effluent quality or deficiency; For addressing the above problem; Reach the purpose that investment is moderate, running cost is lower; The technology that the present invention adopts is: the synthetic device of handling of a kind of percolate comprises that electrochemistry preoxidation decomposing system, anaerobe floating bed denitrification treatment system, photochemical catalytic oxidation decomposing system, aerobe floating bed nitration treatment system form the synthetic processing innovative technology method of a synthetic to the percolate characteristics.The synthetic device of handling of a kind of percolate; It is characterized in that: effective hydraulic detention time of regulating hydrolytic tank (1) is 12 hours; Regulate hydrolytic tank (1) and submersible pump has been installed is connected with electrochemistry preoxidation system (2) by pipeline, the rising of submersible pump closes that fluid level controller is controlled also and the special DC power supply of electrochemistry preoxidation system (2), the chain control of ultraviolet power source special of photocatalysis Decomposition system (5).
Described electrochemistry preoxidation system (2) is made up of positive and negative electrode.Positive and negative electrode is connected with negative pole with the positive pole of special DC power output end respectively by lead.The water outlet of electrochemistry preoxidation system (2) is connected with the water-in of bio anaerobic floating bed, and the water outlet center absolute altitude of electrochemistry preoxidation system (2) is higher than bio anaerobic floating bed (3) water outlet center absolute altitude 10cm.Water body residence time in electrochemistry preoxidation system (2) is 10 minutes.Comprise being primarily aimed at the equalizing tank that the changeable and preset collection of percolate water quality stored and had concurrently hydrolysis function, effective hydraulic detention time of equalizing tank is 12 hours.
Described anaerobe floating bed nitration treatment system, it is characterized in that: bio anaerobic floating bed (3) is made up of rotating cage, biological bead, wheelwork and power disposition system.The rotating speed of rotating cage is 1-5 rev/min; Rotating cage is submerged under the horizontal plane fully; The water outlet of bio anaerobic floating bed system (3) is connected with intermediate sedimentation pond (4) water-in, and the water outlet center absolute altitude of bio anaerobic floating bed system (3) is higher than intermediate sedimentation pond (4) water outlet center absolute altitude 5cm.The time that water body stops in bio anaerobic floating bed system is 4 hours.The water outlet of bio anaerobic floating bed system directly gets into intermediate sedimentation pond (4), and water body is 40 minutes in the residence time of intermediate sedimentation pond (4).Comprise the rotating cage of immobilized bio-carrier bead, biological bead, transmission mechanism and power disposition, rotating cage is submerged in the water body fully.To the characteristic of percolate, waste water is 4 hours in the residence time of anaerobic zone, and the water body after the process anaerobism is nitrated gets into deposition in the intermediate sedimentation pond, and the hydraulic detention time in the settling tank is 40 minutes.
Described photocatalysis Decomposition system is characterized in that: the water outlet absolute altitude of the water inlet absolute altitude of photocatalysis Decomposition system (5) and intermediate sedimentation pond (4) equates that the water outlet absolute altitude of photocatalysis Decomposition system (5) is higher than biology aerobic floating bed (6) water outlet absolute altitude 10cm.Photocatalysis Decomposition system (5) is made up of ultraviolet source, layer of carrier material, ultraviolet power source special.The ultraviolet light wavelength is 158-254nm, hydraulic detention time 5 minutes.To the characteristic of percolate, water body is 5 minutes through the residence time of photocatalytic region.
Described aerobe floating bed nitration treatment system, it is characterized in that: biology aerobic floating bed (6) comprises the rotating cage of immobilized bio-carrier bead, biological bead, transmission mechanism and power disposition.Rotating cage 25% is above water, and 75% below horizontal plane, hydraulic detention time 2 hours.The water-in of biology aerobic floating bed (6) water outlet and terminal settling tank (7) is connected, and the residence time of water body in terminal settling tank (7) is 45 minutes.Comprise the rotating cage of immobilized bio-carrier bead, biological bead, transmission mechanism and power disposition; The rotating cage diameter 25% on horizontal plane; Be convenient to the suction of aerobe flora and take the photograph airborne oxygen branch; Water body is 2 hours in the residence time in aerobe district, and the water body after handling through aerobic denitrification gets into deposition in the settling tank of terminal.
Technical scheme of the present invention is following:
The synthetic device of handling of a kind of percolate connects to form a closed circuit garbage percolation liquid treating system successively by adjusting hydrolytic tank 1, electrochemistry preoxidation system 2, bio anaerobic floating bed system 3, intermediate sedimentation pond 4, photocatalysis Decomposition system 5, biology aerobic floating bed system 6, terminal settling tank 7.
Technique effect of the present invention is following:
The present invention compares with background technology, and the beneficial effect that has is: the investment of ton waste water practices thrift 20%; Ton wastewater treatment cost savings 50%.To the percolate water quality characteristics, after employing electrochemistry pre-oxidation treatment, the processing of bio anaerobic floating bed, photocatalysis Decomposition processing, biology aerobic floating bed are handled, to clearance >=98% of TN; Clearance >=95% to TP; Clearance >=99% to COD.
Description of drawings
Accompanying drawing 1 is the synoptic diagram of the synthetic treatment unit of percolate of the utility model
The graphical indicia explanation:
1, regulates hydrolytic tank 2, electrochemistry preoxidation system 3, bio anaerobic floating bed system 4, intermediate sedimentation pond 5, photocatalysis Decomposition system 6, biology aerobic floating bed system 7, terminal settling tank
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Percolate is regulated the processing that is hydrolyzed in the hydrolytic tank 1 through being pooled to after collecting, and water body residence time in regulating hydrolytic tank is 12 hours, through the water pollutant average removal rate 15% after the hydrolysis.
Water body after overregulating hydrolysis gets in the electrochemistry preoxidation system 2 under the submersible pump effect and carries out strong oxidative decomposition; The molecule of organic ring texture is broken up chain rupture in the water body; Fat, chemical fibre class material are decomposed by open loop; Virus in the water body, germ, DNA is oxidized kills, for bio anaerobic floating bed treatment system provides good environment.In the water body after the electrochemistry preoxidation system handles; The COD value can obviously improve; Clearance to ammonia-state nitrogen surpasses 60%, and the P surface in the water body is generated the phosphoric acid salt material by the calcium in hydroxylation and the water body, magnesium, iron reaction and gets into follow-up processing unit with water body.
After water body is handled through electrochemistry preoxidation system 2; The material of polypeptide ring texture is by the chain rupture open loop in the water body; Influence the oxidized decomposition of organic cpds of microorganism growth, water body gets into bio anaerobic floating bed system 3, and the oxidized reduction of most of nitric nitrogen generates the nitrogen G&W under the effect of denitrification flora; P is captured under the polyP bacteria effect and reunites in the mud collection bucket bottom falling to together with the phosphoric acid salt material, discharges system with mud.The average removal rate of pollutent is 75% in 3 pairs of water bodys of bio anaerobic floating bed system.
Water body gets into intermediate sedimentation pond 4 under action of gravity, the suspended particle that is free in the water body obtains coagulative precipitation in intermediate sedimentation pond 4.The average removal rate of the 4 pairs of pollutents in intermediate sedimentation pond is 5%.The residence time of water body in intermediate sedimentation pond 4 is 40 minutes.
Water body overflow through post precipitation gets into photocatalysis Decomposition system 5; Under ultraviolet catalytic; Catalytic Layer is excited and generates the strong oxidizing property material does not have selection to the pollutent in the water body oxidizing reaction; Ammonia-state nitrogen is direct oxidation into nitrogen G&W, the oxidized nitrogen G&W that is reduced into of nitric nitrogen, oxidized carbonic acid gas and the water of resolving into of COD, in the water body free phosphorus once more by after the hydroxylation with water body in metals ion reaction generate the phosphoric acid salt material and separate with water body.The photocatalysis Decomposition system is 85% to the average clearance of pollutent in the water body.
Water body after the photocatalysis Decomposition system handles 5 gets into biology aerobic floating bed system 6 and carries out the biological nitration reaction under action of gravity, water body is inspired a large amount of oxygen and carbon in the photocatalysis Decomposition process, for biological aerobic treatment provides good condition.Pollutent in the water body obtains oxygenolysis under nitrifier effect, the average removal rate of pollutent is reached 90%.Water body after the aerobic floating bed of process system 6 handles gets into terminal settling tank post precipitation qualified discharge.
Should be pointed out that the above embodiment can make those skilled in the art more fully understand this innovation, but limit this innovation never in any form.Therefore, although this specification sheets has carried out detailed explanation with reference to accompanying drawing and embodiment to this innovation.But, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and the scope of this innovation, and it all should be encompassed in the middle of the protection domain of this innovation patent.
Claims (6)
1. the synthetic device of handling of percolate is characterized in that: comprise that adjusting hydrolytic tank (1), electrochemistry preoxidation system (2), bio anaerobic floating bed system (3), intermediate sedimentation pond (4), photocatalysis Decomposition system (5), biology aerobic floating bed system (6), terminal settling tank (7) connect to form a closed circuit garbage percolation liquid treating system successively.
2. according to the synthetic device of handling of the said a kind of percolate of claim 1; It is characterized in that: effective hydraulic detention time of regulating hydrolytic tank (1) is 12 hours; Regulate hydrolytic tank (1) and submersible pump has been installed is connected with electrochemistry preoxidation system (2) by pipeline, the rising of submersible pump closes that fluid level controller is controlled also and the special DC power supply of electrochemistry preoxidation system (2), the chain control of ultraviolet power source special of photocatalysis Decomposition system (5).
3. according to the synthetic device of handling of the said a kind of percolate of claim 1; It is characterized in that: electrochemistry preoxidation system (2) is made up of positive and negative electrode; Positive and negative electrode is connected with negative pole with the positive pole of special DC power output end respectively by lead; The water outlet of electrochemistry preoxidation system (2) is connected with the water-in of bio anaerobic floating bed; The water outlet center absolute altitude of electrochemistry preoxidation system (2) is higher than bio anaerobic floating bed (3) water outlet center absolute altitude 10cm, and water body residence time in electrochemistry preoxidation system (2) is 10 minutes.
4. according to the synthetic device of handling of the said a kind of percolate of claim 1; It is characterized in that: bio anaerobic floating bed (3) is made up of rotating cage, biological bead, wheelwork and power disposition system; The rotating speed of rotating cage is 1-5 rev/min; Rotating cage is submerged under the horizontal plane fully; The water outlet of bio anaerobic floating bed system (3) is connected with intermediate sedimentation pond (4) water-in, and the water outlet center absolute altitude of bio anaerobic floating bed system (3) is higher than intermediate sedimentation pond (4) water outlet center absolute altitude 5cm, and the time that water body stops in bio anaerobic floating bed system is 4 hours; The water outlet of bio anaerobic floating bed system directly gets into intermediate sedimentation pond (4), and water body is 40 minutes in the residence time of intermediate sedimentation pond (4).
5. according to the synthetic device of handling of the said a kind of percolate of claim 1; It is characterized in that: the water outlet absolute altitude of the water inlet absolute altitude of photocatalysis Decomposition system (5) and intermediate sedimentation pond (4) equates; The water outlet absolute altitude of photocatalysis Decomposition system (5) is higher than biology aerobic floating bed (6) water outlet absolute altitude 10cm; Photocatalysis Decomposition system (5) is made up of ultraviolet source, layer of carrier material, ultraviolet power source special, and the ultraviolet light wavelength is 158-254nm, hydraulic detention time 5 minutes.
6. according to the synthetic device of handling of the said a kind of percolate of claim 1; It is characterized in that: biology aerobic floating bed (6) comprises the rotating cage of immobilized bio-carrier bead, biological bead, transmission mechanism and power disposition; Rotating cage 25% is above water, and 75% below horizontal plane, hydraulic detention time 2 hours; The water-in of biology aerobic floating bed (6) water outlet and terminal settling tank (7) is connected, and the residence time of water body in terminal settling tank (7) is 45 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204117868U CN202430086U (en) | 2011-10-19 | 2011-10-19 | Device for synthesizing and treating landfill leachate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204117868U CN202430086U (en) | 2011-10-19 | 2011-10-19 | Device for synthesizing and treating landfill leachate |
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| CN202430086U true CN202430086U (en) | 2012-09-12 |
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| CN2011204117868U Expired - Fee Related CN202430086U (en) | 2011-10-19 | 2011-10-19 | Device for synthesizing and treating landfill leachate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186513A (en) * | 2016-07-12 | 2016-12-07 | 佛山杰致信息科技有限公司 | A kind of wastewater efficient processing method |
| CN110092512A (en) * | 2019-05-20 | 2019-08-06 | 清华大学深圳研究生院 | A kind of processing system and method for landfill leachate |
-
2011
- 2011-10-19 CN CN2011204117868U patent/CN202430086U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186513A (en) * | 2016-07-12 | 2016-12-07 | 佛山杰致信息科技有限公司 | A kind of wastewater efficient processing method |
| CN110092512A (en) * | 2019-05-20 | 2019-08-06 | 清华大学深圳研究生院 | A kind of processing system and method for landfill leachate |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Changzhou Expansion New Stuff Technology Co., Ltd. Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Changzhou Expansion New Stuff Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20161019 |