CN202766385U - Treatment system for leachate generated by landfill space of refuse - Google Patents
Treatment system for leachate generated by landfill space of refuse Download PDFInfo
- Publication number
- CN202766385U CN202766385U CN201220475764.2U CN201220475764U CN202766385U CN 202766385 U CN202766385 U CN 202766385U CN 201220475764 U CN201220475764 U CN 201220475764U CN 202766385 U CN202766385 U CN 202766385U
- Authority
- CN
- China
- Prior art keywords
- tank
- treatment
- percolate
- refuse
- treating system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a treatment system for leachate generated by a landfill space of refuse. The treatment system comprises an adjusting tank, a hydrolytic acidification tank, a sequencing batch activated sludge tank, a water collecting tank, an MVC (mechanical vapor compression) evaporator and a clean water tank which are sequentially connected. From an engineering practical situation, the experience of domestic and foreign refuse leachate treatment engineering is sufficiently absorbed, by the aid of advanced and reliable technology, treatment efficiency is improved as far as possible, reaction conditions are optimized, and leachate treatment facilities can be ensured to safely and efficiently run.
Description
Technical field
The utility model relates to the timely field of waste water treatment, particularly a kind of percolation liquid treating system of garbage sanitary filling field generation.
Technical background
Because be subject to the restriction of the level of economic development, the municipal wastes sanitary landfill of China is started late, sanitary filling field truly is just to build since late 1980s.The construction of Refuse Leachate Treatment Plant is just more late, and from the time, three phases has been experienced in the processing of percolate:
(1) fs
This stage is the phase in the early 1990s, the treatment process of percolate is mainly with reference to the treatment process of municipal effluent, and representational case history has emperor mountain range, Hangzhou percolate treatment plant (adopt three heavy two expose to the sun Activated Sludge Process), Beijing A Suwei percolate treatment plant (adopting anaerobism-oxidation ditch process) etc.Owing to not considering the large characteristic of percolate complicated component, water quality and quantity fluctuation, these several treatment plants all exist can not steady running problem.
(2) subordinate phase
This stage is in the middle and later periods nineties, and through after the groping of initial stage, domestic treatment industry gets into the swing of some characteristics of percolate, and takes unconventional method to process the percolate of high ammonia nitrogen, high organic concentration.
The treatment process in this stage is generally ammonia stripping-anaerobic treatment-aerobic treatment, and representational case history has Shenzhen Xia Ping percolate treatment plant (adopting ammonia stripping-anaerobic composite bed-SBR technique), Hong Kong New Territories west percolate treatment plant (adopting ammonia stripping-SBR technique) etc.The process using in this period effective denitrification process, guaranteed the activity of subsequent biological treatment, but because the relatively poor biodegradability of percolate, biological treatment also can only reach three grades of emission standards.
(3) phase III
After 2000, because economic develop rapidly, newly-built refuse landfill is generally away from the city, percolate does not have condition to enter municipal sewage pipe network, therefore also corresponding raising of processing requirements, generally need to process secondary even first discharge standard, only depend on biological treatment this moment is to reach processing requirements.
Along with development and the popularization of membrane technique, what this stage generally taked is method and the employing evaporation mode treating refuse percolate that biological treatment-film is processed.
The former representational case history has Guangzhou Xing Feng percolate treatment plant (anaerobic biological treatment-sequencing batch reactor-ro treatment technology), Qingdao Xiao Jianxi percolate treatment plant (bioreactor-nano filtering membrane) etc.The representational case history of the latter has from changing pool mouth garbage sanitary filling field percolate treatment station, green hill, Qingyuan City garbage sanitary filling field percolate treatment station etc.
In decades, the research of both at home and abroad percolate being processed has obtained larger success, and particularly economically developed country is put to production practice with achievement in research, has accumulated many service experience.Method for treating garbage percolation liquid commonly used is biological treatment, physicochemical treatment method etc.
Percolate is owing to having experienced anaerobic process at rubbish body, and its biochemical is relatively relatively poor, and the residence time of biological treatment is longer, causes the investment of facility, equipment larger.And the general less for the treatment of capacity causes depreciation, upkeep cost higher.
The general techniques such as coagulating sedimentation, chemical oxidation, absorption, filtration, membrane sepn, ammonia-nitrogen desorption that adopt are processed in the materialization of percolate, ammonia-nitrogen content index (NH3-N) and heavy metal ion etc. in suspended substance in the removal water quality, colourity, the water (waste water) there are preferably effect, also higher to chemical oxygen demand (COD) (COD) removal effect of difficult for biological degradation.Wider coagulation, oxidation and the membrane technique of comprising process used in materialization, and coagulation needs stable condition of water quality, and the characteristic that the change of water quality of percolate is large can cause coagulation effect unstable, although the oxidation style control ratio is easier to and is effective, but working cost is higher.
Although the technology such as reverse osmosis and ultrafiltration effluent quality is good in the membrane technique, investment is large, working cost is high.
The utility model content
Goal of the invention of the present utility model is to overcome the deficiency of the Technology of Landfill Leachate that above-mentioned conventional garbage sanitary filling field produces, the percolation liquid treating system that provides a kind of garbage sanitary filling field to produce.
For reaching the foregoing invention purpose, the technical solution adopted in the utility model is: the percolation liquid treating system that a kind of refuse landfill produces comprises the equalizing tank, hydrolysis acidification pool, type sequence intermittent activated sludge tank, water collecting basin, MVC evaporation unit and the clean water basin that connect successively.
Preferably, described hydrolysis acidification pool and type sequence intermittent activated sludge tank are connected with sludge sump; The mud that hydrolysis acidification pool and type sequence intermittent activated sludge tank produce enters into sludge sump, and then mud is dehydrated buries.
Preferably, described equalizing tank is connected with hydrolysis acidification pool by pump.
Preferably, described MVC evaporation unit also is connected with exhaust gas absorption device; Exhaust gas absorption device is again returned the absorption liquid that is recovered to and is steamed in the MVC evaporation unit.
Preferably, described type sequence intermittent activated sludge tank also is connected with gas blower.
Equalizing tank stores the different times percolate, and the regulating water quality water yield reduces biochemical section load impact.
Hydrolysis acidification pool resolves into small molecules with the larger molecular organics of part difficult degradation in the percolate, improves the biodegradability of waste water.
Sequencing batch reactor is removed most of organism and ammonia nitrogen exactly.
The MVC evaporation unit utilizes evaporating principle, further removes salt and organism in the percolate.
The utility model has following beneficial effect with respect to prior art:
(1) percolation liquid treating system of the utility model garbage sanitary filling field generation is from the engineering practical situation, fully absorb the experience that the home and abroad percolate is processed engineering, adopt advanced reliably technology, improve processing efficiency as far as possible, optimize reaction conditions, guarantee that the percolate treatment facility can move safely and efficiently;
(2) the percolation liquid treating system treatment process of the utility model garbage sanitary filling field generation is advanced, energy-conservation, efficient, reduces energy consumption, medicine consumption as far as possible, reduces running cost;
(3) percolation liquid treating system of the utility model garbage sanitary filling field generation adopts self-service instrument, equipment, Monitoring equipment and the Controlling System of advanced reliable, suitable China's national situation in conjunction with this engineering practical situation; In addition, lectotype selection is appropriate, improves automatic management level and power supply safety degree, to alleviate labor strength, improves working conditions;
(4) mud and the dope that produces in the percolate treating processes dealt carefully with and disposed to the percolation liquid treating system of the utility model garbage sanitary filling field generation, avoids causing secondary pollution; The pollution problems such as the noise that may cause this engineering, foul smell are rationally disposed, and reduce to construct and detrimentally affect that operational process causes the normal productive life of peripheral resident and environmental health as far as possible;
(5) the percolation liquid treating system architectural design of the utility model garbage sanitary filling field generation is being satisfied under the prerequisite of processing requirement, makes every effort to novel, succinct, lucid and lively on architectural style and the tone, and the Environment Design of plant area realizes garden style.Unified style and the tone of processing full factory, and in unification, seek to change; Combining environmental, make whole treatment plant become one and association have cause, beautiful happy outside atmosphere.
Description of drawings:
Fig. 1 is the fundamental diagram of the percolation liquid treating system of the utility model garbage sanitary filling field generation.
Embodiment:
Below in conjunction with the drawings and specific embodiments utility model purpose of the present utility model is described in further detail, embodiment can not give unnecessary details one by one at this, but therefore embodiment of the present utility model is not defined in following examples.Unless stated otherwise, material and the working method of the utility model employing are the art conventional material and working method.
Embodiment
As shown in Figure 1, for utilizing the principle of work of the percolation liquid treating system that this refuse landfill produces, comprise following two steps:
(1) pre-treatment and biochemical section
The percolate water quality and quantity is larger with seasonal variation fluctuation, and an equalizing tank 1 that volume is larger is set, and to add concentration be that 30% liquid caustic soda is all measured the percolate homogeneous; Owing to regulating overstand, the ss suspended solid in the percolate is precipitated and produces anaerobic effect, remove a part of pollution substance.
Percolate after overregulating mainly relies on hydrolysis bacterium and acidifying bacterium that the macromole hard-degraded substance is resolved into micromolecular lipid acid etc. with in the pump suction hydrolysis acidification pool 2 at this, in order to provide enough available matrix for 3 denitrogenations of type sequence intermittent activated sludge tank.
The water outlet of hydrolysis acidification pool flows into sequencing batch reactor pond 3 automatically, by the division of time period most of organism of degrading.This sequencing batch reactor pond 3 is provided with gas blower 5.Suitable supplementary carbon source and basicity are removed most ammonia-nitrogen and organic pollutant in this sequencing batch reactor pond 3; Hydrolysis acidification pool 2 and type sequence intermittent activated sludge tank 3 are connected with sludge sump 8; The mud that hydrolysis acidification pool 2 and type sequence intermittent activated sludge tank 3 produce enters into sludge sump 8, and then mud is dehydrated buries.
(2) the MVC evaporation unit is processed
Water outlet in the type sequence intermittent activated sludge tank 3 enters into MVC evaporation unit 6 by water collecting basin 4.In the present embodiment, adopt efficient automatically control MVC evaporation unit 6, MVC evaporation unit 6 is characteristics that its pressure and temperature is progressively promoted when using steam compressed.When the steam of comparatively high temps enters in the heat transfer tube of vaporizer, and cold water is when the outer spray of pipe, and steam forms water of condensation in pipe the inside condensation, and the spray water that the heat of steam is passed to outside the pipe carries out continuous evaporation.Percolate is through after the leading portion pre-treatment, carries out the Multi-stage heat exchange with the heating agent of MVC evaporation unit 6, and when entering MVC evaporation unit 6, temperature reaches boiling point.MVC evaporation unit 6 utilizes flash principle, more than 100 ℃ water is being evaporated, and water vapour becomes distilled water discharge MVC evaporation unit 6 and enters in the clean water basin 7 after condensation.Qualified discharge after distilled water is stored in clean water basin 7.The waste gas of MVC evaporation unit 6 then enters in the exhaust gas absorption device 9, and the waste gas in the exhaust gas absorption device 9 returns through absorption liquid and steams in MVC evaporation unit 6 recycle.
Simultaneously, part can't become gas under this temperature deviates from the material of evaporating pot and is concentrated, and these concentrated solutions will be discharged MVC evaporation unit 6 after reaching finite concentration; Then with these Concentrated liquid recharges in refuse landfill.In general, distilled water accounts for 90% of percolate, and concentrated solution accounts for 10% of percolate.
Whole MVC evaporation unit 6 takes full advantage of the waste heat of ejecta, has improved the utilising efficiency of electric energy, effectively makes the exhaust temperature of distilled water be controlled at higher 3 ~ 5 ℃ than water inlet.
As mentioned above, just can realize preferably the utility model, above-described embodiment is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model; Be that all equalizations of doing according to the utility model content change and modification, all contained by the utility model claim scope required for protection.
Claims (5)
1. the percolation liquid treating system that refuse landfill produces is characterized in that, comprises the equalizing tank, hydrolysis acidification pool, type sequence intermittent activated sludge tank, water collecting basin, MVC evaporation unit and the clean water basin that connect successively.
2. the percolation liquid treating system of refuse landfill generation according to claim 1 is characterized in that, described hydrolysis acidification pool and type sequence intermittent activated sludge tank are connected with sludge sump.
3. the percolation liquid treating system of refuse landfill generation according to claim 1 is characterized in that, described equalizing tank is connected with hydrolysis acidification pool by pump.
4. the percolation liquid treating system of refuse landfill generation according to claim 1 is characterized in that, described MVC evaporation unit also is connected with exhaust gas absorption device.
5. the percolation liquid treating system of refuse landfill generation according to claim 1 is characterized in that, described type sequence intermittent activated sludge tank also is connected with gas blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475764.2U CN202766385U (en) | 2012-09-18 | 2012-09-18 | Treatment system for leachate generated by landfill space of refuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475764.2U CN202766385U (en) | 2012-09-18 | 2012-09-18 | Treatment system for leachate generated by landfill space of refuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202766385U true CN202766385U (en) | 2013-03-06 |
Family
ID=47772973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220475764.2U Expired - Lifetime CN202766385U (en) | 2012-09-18 | 2012-09-18 | Treatment system for leachate generated by landfill space of refuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202766385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663834A (en) * | 2013-12-06 | 2014-03-26 | 南京万德斯环保科技有限公司 | Treating method for landfill leachate |
-
2012
- 2012-09-18 CN CN201220475764.2U patent/CN202766385U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663834A (en) * | 2013-12-06 | 2014-03-26 | 南京万德斯环保科技有限公司 | Treating method for landfill leachate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108467161B (en) | Advanced treatment method for landfill leachate tail water | |
| CN100569676C (en) | A kind of treatment process of percolate | |
| CN101823806B (en) | Piggery waste water treatment method based on strong-thin shunt | |
| CN1298640C (en) | Resource process of inflitration liquid | |
| CN112573667B (en) | Sewage treatment device and method based on algae-bacteria symbiotic electrochemical system | |
| CN102190409A (en) | Garbage leachate treatment system | |
| CN106512928B (en) | A kind of sludge carbon and preparation method thereof for handling refuse leachate | |
| CN102942293A (en) | Tidal current wetland coupled electrochemical reinforced denitrification and dephosphorization method and system | |
| CN101367594B (en) | Treatment method for cellulose fermentation wastewater | |
| CN102838244A (en) | Landfill leachate treatment process and device | |
| CN102976543A (en) | Garbage leachate disposal method and system | |
| CN101113057A (en) | Combined technique for garbage filter liquor treatment | |
| CN202038886U (en) | Treatment system for high-concentration industrial ammonia-nitrogen waste water | |
| CN105417843A (en) | Treatment method achieving zero release of leachate in municipal domestic garbage incineration plant | |
| CN104591463A (en) | Method for treating preserved vegetable production wastewater | |
| CN102010097B (en) | Method for recycling carbon fiber wastewater | |
| CN203173935U (en) | Rubbish leach liquor processing system | |
| CN208532535U (en) | A kind of garbage percolation liquid treating system | |
| CN104628065A (en) | Chemical pharmaceutical wastewater treatment system and method | |
| CN202089863U (en) | Rubbish leachate treatment system | |
| CN202766385U (en) | Treatment system for leachate generated by landfill space of refuse | |
| CN103588356A (en) | Combination system for treating landfill leachate and method for treating landfill leachate by using combination system | |
| CN104310691A (en) | Garbage percolation concentrated solution treatment system and method | |
| CN215208944U (en) | Device for separating concentrated solution by using membrane for treating landfill leachate through surface photothermal evaporation | |
| CN101428927A (en) | Combined process for treatment and qualified discharge of garbage leachate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |
|
| CX01 | Expiry of patent term |