CN101905945B - Municipal sludge energy treatment system - Google Patents
Municipal sludge energy treatment system Download PDFInfo
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- CN101905945B CN101905945B CN2010102323409A CN201010232340A CN101905945B CN 101905945 B CN101905945 B CN 101905945B CN 2010102323409 A CN2010102323409 A CN 2010102323409A CN 201010232340 A CN201010232340 A CN 201010232340A CN 101905945 B CN101905945 B CN 101905945B
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- reactor
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- municipal sludge
- membrane separation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Treatment Of Sludge (AREA)
Abstract
The invention belongs to the field of sludge treatment and relates to a municipal sludge energy treatment system. The system comprises an acidogenic reactor and a methanogenic reactor; and first-level membrane separation equipment and second-level membrane separation equipment are arranged between the acidogenic reactor and a methanogenic reactor. The sludge passes through the acidogenic reactor and is hydrolyzed to generate acid in the methanogenic reactor, and then passes through the first-level membrane separation equipment to be separated into first concentrated solution and first penetrating fluid. The first concentrated solution reflows to the acidogenic reactor, and the first penetrating fluid enters the second-level membrane separation equipment to be separated into second concentrated solution and second penetrating fluid; and the second concentrated solution enters the methanogenic reactor to be fermented to generate methane. By organically combining the two-phase anaerobic digestion technology with the membrane separation technology, the municipal sludge energy treatment system realizes the combination of a physical dialysis method and a kinetic control method and really realizes the separation of fermentative bacteria bacteria and methanogenic bacteria. Therefore, the bacteria in two phases can exert the maximum activity, and the operating stability and energy efficiency of the whole system are improved.
Description
Technical field
The invention belongs to field of sludge treatment, relate to a kind of municipal sludge treatment system.
Background technology
Since late 1990s, China's municipal sewage treatment cause develops rapidly, the municipal sewage plant is by more than 400 792 of developing into 2005, produce nearly 600,000 t of mud (dry-matter meter) per year, according to the long-range objectives to the year 2010, national sewage work quantity will reach about 2000 in 2010, and wastewater treatment rate reaches 50%, and the sludge quantity of corresponding generation is about 1,000 ten thousand t/.Sewage and mud are two systems that solve municipal water pollution problem tight association again of equal importance, and it is the guarantee that sewage disposal is finally implemented that sludge treatment is disposed.
Carry out sludge stabilizing both at home and abroad and handle the main anaerobic digestion of adopting, anaerobic digestion can be divided into hydrolysed ferment, acid fermentation and methane fermentation three phases.In traditional anaerobic digestion process, acid-producing bacteria and methanogen are finished the process of anaerobic digestion in the homogeneous reaction device.Because the characteristic of the two has than big-difference,, can't make acid-producing bacteria and methanogen all be in best physiological ecological envrionment conditions, thereby exist problems such as processing efficiency and operation stability difference the requirement difference of envrionment conditions.
1971, Ghosh and Pholand have at first proposed the notion of TPAD, promptly the 1st, the 2nd stage and the 3rd stage are carried out in two digesters respectively, acid-producing bacteria and methanogen are placed respectively in two placed in-line reactors, and provide required separately top condition, make this two bacterioid can both bring into play maximum activity, compare with the traditional single phase anaerobic digestion process: the treatment effect of the organic loading of TPAD technology, biogas output, speed and total system all is higher than traditional anaerobic digestion process far away; Acidogenic reactor carries out pre-treatment to sewage in the TPAD technology, not only provide matrix preferably for methane-producing reactor, can also remove or reduce the objectionable impurities in the water, reduce toxic action and influence, strengthen the stability of total system operation methanogen.
Being separated is the key that realizes TPAD technology, and traditional TPAD realizes that by the regulation and control of kinetic parameter (as organic rate of load condensate, the residence time etc.) acid-producing bacteria and the effective of methanogen separate.But in actual motion, acid-producing bacteria enters methane-producing reactor through regular meeting with water outlet, has both caused the loss of acid-producing bacteria; larger molecular organics is acidication fully; can the growth of methanogen in the methane-producing reactor be worked the mischief again, influence gassy fermentation, reduce the processing efficiency of total system.
In addition, in the many sludge of sewage treatment plant anaerobic digester systems that moved of China, biogas output fluctuation is bigger, causes the generating fluctuation big, and key equipments such as marsh gas power generation can not normally move or stoppage in transit etc.The phenomenon of this low-yield mainly is to cause by not keeping stable high organic loading in the anaerobic digestion process.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of sludge treating system that can effectively promote TPAD and gas producing efficiency is provided.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The invention provides a kind of municipal sludge energy treatment system, comprise acidogenic reactor and methane-producing reactor, also be provided with first step membrane separation plant and second stage membrane separation plant between acidogenic reactor and the methane-producing reactor.Mud produces acid through acidogenic reactor hydrolysis therein earlier, make the larger molecular organics acidifying that is hydrolyzed, be transformed into small molecular organic acid and alcohols etc., pass through first step membrane separation plant afterwards, be separated into first concentrated solution and first penetrating fluid, first penetrating fluid enters second stage membrane separation plant, and being separated into becomes second concentrated solution and second penetrating fluid, and second concentrated solution enters the described methane-producing reactor product methane that ferments again; And separate become clear liquid, can directly discharge or handle the back reuse.
By the first separating obtained concentrated solution of first step membrane separation plant, can reflux by pipe connection and enter acidogenic reactor, carry out hydrolysis acid-producing once more with the mud that newly enters acidogenic reactor, improve mud and produce sour efficient.The one-level membrane sepn can be held back acid-producing bacteria, stops it to producing the influence of methane phase.
Being provided with first and second grades and separating film device between acidogenic reactor and methane-producing reactor, make mud be separated into the concentrated solution/penetrating fluid that is adapted to next step reaction in each step, is one of important inventive point of the present invention.
Membrane sepn is a separation technology that emerges rapidly after the sixties in 20th century.Membrane separation technique has separation, spissated function concurrently, has efficiently, is easy to features such as control again.But present membrane separation technique only is applied to water treatment system.
The present invention is applied to sludge treating system with membrane separation plant first, finds to utilize two-stage to separate, and is very suitable for obtaining to be adapted to the concentrated solution/penetrating fluid of TPAD.In the present invention, the film that film separating system adopted is tympanum or tubular membrane, and they have high resistance to crocking, and easy cleaning is very low to the pre-treatment requirement of water quality and feed liquid, finds that through practice they are very suitable for the operation of native system.In order to make separating effect and purpose of the present invention more press close to, further promote and produce acid, produce methane and effluent quality, the preferred following film of the present invention: the film that first step separatory membrane equipment is adopted is microfiltration membrane or ultra-filtration membrane; The film that second stage separatory membrane equipment is adopted is ultra-filtration membrane, nanofiltration membrane or reverse osmosis membrane.
Produce acid/product methane efficient in order further to promote, acidogenic reactor and methane-producing reactor are equipped with heating unit or attemperator; Temperature (two phase reaction temperature) in the reactor all is controlled at 35 ± 1 ℃.
Adopt the part of this membrane separation plant as treatment system, the combination of its each equipment room is simple, linking is tight, and equipment operation stability is very strong.Enter first step membrane separation plant through the water outlet after the acid of hydrolysis product; Organic dope of macromole after the concentrating and separating and acid-producing bacteria are back to hydrolysis acidogenic reactor and continue hydrolysis, and penetrating fluid enters second stage membrane separation plant; After the process concentrating and separating second time, clear liquid can directly discharge or handle the back reuse, concentrated solution enters the methane-producing reactor anaerobically fermenting, can guarantee that the organic concentration COD in the methane-producing reactor is not less than 20000mg/L, guarantee that higher organic loading and total system has higher gas production rate and gas production rate in the methane-producing reactor, water outlet enters Sewage treatment systems behind the gassy fermentation.
Remove this, the bottom of acidogenic reactor and methane-producing reactor is provided with mud discharging mouth, carries out the spoil disposal at intermittence, and the top is provided with gas collector, and the biogas that produces in acidogenic reactor and the methane-producing reactor enters gas collector from the top.Preferred acidogenic reactor and methane-producing reactor are as follows: acidogenic reactor pond body is square or cylindrical vessel, and pond height and footpath, pond (pond is wide) can be steel or concrete material than being 0.5～1.5: 1; Methane-producing reactor can be the UASB reactor or can reach same anaerobically fermenting and any reactor of gas-water separation effect.
Compared with prior art, the present invention has following beneficial effect:
1. system provided by the present invention organically combines TPAD technology and membrane separation technique, physics dialysis method and the combination of kinetic control method have been realized, separating of real realization hydrolysis acid-producing bacteria and methanogen, make the bacterium in the two-phase can both bring into play maximum activity, improve the operation stability of total system.
2. system provided by the present invention is by the organic setting of two-stage membrane separation plant in system, can guarantee to produce steady running under the methane fermentation Duan Zaigao organic concentration, have very high organic loading and organic removal rate, biogas output and productive rate height have improved the processing efficiency of total system; The organism rate of recovery after its concentrating and separating is not less than 80%, can keep and produce the organic concentration of methane fermentation Duan Zaigao (COD 〉=20000mg/L) operation down, have very high organism thing transformation efficiency (0.9～1.1L/g VS) and rate of decomposition (40%～60%), and digestion time short (being lower than 10 days), the processing efficiency of total system improves greatly, biogas output is stable simultaneously, help the normal operation of follow-up marsh gas power generation equipment, in sludge reduction, realize its recycling, reduce running cost.
3. system provided by the invention is the processing efficiency height not only, and simple in structure, compact, the running that cooperatively interacts, and stable, floor space is little, saves cost of investment, is not only applicable to large-scale sewage plant sludge and handles, and also can promote in middle-size and small-size Sewage Plant.
Description of drawings
Fig. 1 is a sludge energy treatment system synoptic diagram of the present invention
Embodiment
Below further specify technical scheme of the present invention by specific embodiment.
Embodiment 1
Equipment: pilot scale, footpath, the pond 2.5m in acid-producing pond, high 2.1m, the about 10m of useful volume
3, inclination angle, the end can be 20 °; Produce the methane reaction pond and adopt rectangle, length is respectively 4m, 3m, 3m, useful volume 30m
3Acid-producing pond one end connects the mud inlet, one end is a water outlet, water outlet connects first step membrane separation plant (micro-filtration tympanum), first step membrane separation plant is held back the end connecting tube and is led to go back to the acid-producing pond, the permeate end connecting tube enters second stage membrane separation plant (ultrafiltration tympanum), second stage membrane separation plant is held back the end connecting tube and is fed product methane reaction pond, the direct water outlet of permeate end connecting tube.
Acid-producing pond and bottom, product methane reaction pond are provided with mud discharging mouth, and the top is equipped with gas collector.
Mud derives from the mixing sludge that a treatment capacity is the Sewage Plant of 200,000 ton per days, and moisture percentage in sewage sludge 95% is handled 4m every day
3Mud enters from acid-producing pond one end, HRT is 2.5 days, temperature is 34 ℃ in the pond, export from the other end afterwards, enter first step membrane separation plant, be separated into first concentrated solution of holding back end and first penetrating fluid of permeate end, first concentrated solution refluxes by pipe connection and enters the acid-producing pond and mix the continuation hydrolysis reaction with the mud that newly enters, prevent the loss of acid-producing bacteria, keep and have higher hydrolysis acid-producing bacteria in the acidogenic reactor; First penetrating fluid enters in the membrane separation plant of the second stage again, is separated into second concentrated solution and second penetrating fluid; Second penetrating fluid can directly discharge, and second concentrated solution enters and produces the methane reaction pond, and the COD that produce in the methane reaction pond this moment is 23000mg/L, HRT is 7,5 days, temperature was 34 ℃ in the pond, produced hydrogen in the methane-producing reactor, acetogen changes into the product of previous stage with acetate and H
2/ CO
2Be main secondary mesostate, and then by finally being converted into CH with the symbiotic methane-producing bacteria of hydrogen-producing acetogenic bacteria
4/ CO
2The biogas that acid-producing pond and product methane reaction pond produce enters gas collector.
The average organic matter decomposition rate of entire treatment system maintains about 45%, and the biogas transformation efficiency that decomposes the unit weight volatile organic matter maintains more than the 0.9L/g VS, and the factor of created gase stable maintenance is at 12m
3/ m
3Wet mud, voltaile fatty acid is lower than 300mg/L in the water outlet of product methane phase.
Embodiment 2
Equipment such as embodiment 1, but the employing of second stage membrane separation plant is nanofiltration membrane.
The mud source is as embodiment 1, mud enters from acid-producing pond one end, HRT was made as 2.5 days, temperature is 36 ℃ in the pond, from the other end output, enters first step membrane separation plant afterwards, be separated into first concentrated solution of holding back end and first penetrating fluid of permeate end, first concentrated solution enters the acid-producing pond by the pipe connection backflow and mixes the continuation hydrolysis reaction with the mud that newly enters, and prevents the loss of acid-producing bacteria, keeps to have higher hydrolysis acid-producing bacteria in the acidogenic reactor; First penetrating fluid enters in the membrane separation plant of the second stage again, be separated into second concentrated solution and second penetrating fluid, second penetrating fluid can direct reuse, second concentrated solution enters and produces the methane reaction pond, the COD that produce in the methane reaction pond this moment is 25000mg/L, HRT was made as 7.5 days, and temperature is 36 ℃ in the pond, produced hydrogen in the methane-producing reactor, acetogen changes into the product of previous stage with acetate and H
2/ CO
2Be main secondary mesostate, and then by finally being converted into CH with the symbiotic methane-producing bacteria of hydrogen-producing acetogenic bacteria
4/ CO
2The biogas that acid-producing pond and product methane reaction pond produce enters gas collector.
The average organic matter decomposition rate of entire treatment system maintains about 50%, and the biogas transformation efficiency that decomposes the unit weight volatile organic matter maintains more than the 1L/g VS, and the factor of created gase stable maintenance is at 13m
3/ m
3Wet mud, voltaile fatty acid is lower than 200mg/L in the water outlet of product methane phase.
Embodiment 3
Equipment such as embodiment 1, but the two-stage membrane separation plant all adopts tubular membrane, first step membrane sepn adopts ultra-filtration membrane, and second stage membrane sepn adopts nanofiltration membrane.Under this device, but the second penetrating fluid direct reuse, the middle mutually COD of product methane can maintain 28000mg/L, and the average organic matter decomposition rate of system maintains about 55%, and organic biogas transformation efficiency maintains about 1.1L/g VS, and the factor of created gase stable maintenance is at 14m
3/ m
3Wet mud, voltaile fatty acid is lower than 200mg/L in the water outlet of product methane phase.Compare with tympanum, the tubular membrane cost is low, but the back flushing number of times is more frequent than tympanum.
Embodiment 4
Equipment such as embodiment 3, but second stage membrane sepn adopts reverse osmosis membrane.Under this device, but the second penetrating fluid direct reuse, the middle mutually COD of product methane can maintain about 30000mg/L, and the average organic matter decomposition rate of system maintains about 57%, and organic biogas transformation efficiency maintains more than the 1.1L/g VS, and the factor of created gase stable maintenance is at 14m
3/ m
3Wet mud, voltaile fatty acid is lower than 150mg/L in the water outlet of product methane phase.Compare with embodiment 3, the back flushing number of times is more frequent, and the film replacement cycle shortens.
Claims (10)
1. municipal sludge energy treatment system, comprise acidogenic reactor and methane-producing reactor, it is characterized in that: also be provided with first step membrane separation plant and second stage membrane separation plant between acidogenic reactor and the methane-producing reactor, mud produces acid through acidogenic reactor hydrolysis therein earlier, pass through first step membrane separation plant afterwards, be separated into first concentrated solution and first penetrating fluid, first penetrating fluid enters second stage membrane separation plant, being separated into becomes second concentrated solution and second penetrating fluid, and second concentrated solution enters the described methane-producing reactor product methane that ferments again.
2. municipal sludge energy treatment system as claimed in claim 1 is characterized in that described first concentrated solution backflow separating obtained in first step membrane separation plant enters acidogenic reactor.
3. municipal sludge energy treatment system as claimed in claim 1 is characterized in that described first and second grades are separated film device employing tympanum or tubular membrane.
4. municipal sludge energy treatment system as claimed in claim 3 is characterized in that the film that described first step separatory membrane equipment is adopted is microfiltration membrane or ultra-filtration membrane; The film that second stage separatory membrane equipment is adopted is ultra-filtration membrane, nanofiltration membrane or reverse osmosis membrane.
5. municipal sludge energy treatment system as claimed in claim 1 is characterized in that described acidogenic reactor and methane-producing reactor are equipped with heating or attemperator.
6. municipal sludge energy treatment system as claimed in claim 5 is characterized in that the temperature in described acidogenic reactor and the methane-producing reactor is controlled at 35 ± 1 ℃.
7. municipal sludge energy treatment system as claimed in claim 1 is characterized in that the bottom of described acidogenic reactor and methane-producing reactor is provided with mud discharging mouth, and the top is provided with gas collector.
8. municipal sludge energy treatment system as claimed in claim 1 is characterized in that the organic concentration COD in the described methane-producing reactor is not less than 20000mg/L.
9. municipal sludge energy treatment system as claimed in claim 1 is characterized in that the second separating obtained penetrating fluid of described second stage membrane separation plant directly discharging or processing back reuse.
10. municipal sludge energy treatment system as claimed in claim 1 is characterized in that described acidogenic reactor pond body is square or cylindrical vessel; Methane-producing reactor is the UASB reactor, is equipped with whipping appts in acidogenic reactor and the methane-producing reactor.
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| CN2010102323409A CN101905945B (en) | 2010-07-20 | 2010-07-20 | Municipal sludge energy treatment system |
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| CN2010102323409A CN101905945B (en) | 2010-07-20 | 2010-07-20 | Municipal sludge energy treatment system |
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| CN101905945B true CN101905945B (en) | 2011-07-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102603140B (en) * | 2012-03-19 | 2014-03-05 | 同济大学 | Process for conducting two-phase anaerobic digestion on sludge by reflux and heating reinforcement |
| CN102603142B (en) * | 2012-03-19 | 2014-03-05 | 同济大学 | Method for producing biogas by aid of intensified anaerobic fermentation of pretreated circular backflow sludge |
| CN104130942B (en) * | 2014-07-21 | 2016-03-09 | 哈尔滨工业大学宜兴环保研究院 | Agricultural organic waste anaerobically fermenting reclaims biogas reaction unit and recovery method |
| CN110304656A (en) * | 2019-08-09 | 2019-10-08 | 湖北中澳纳米材料技术有限公司 | Process units, method and the application of a kind of nanometer of zinc molybdate |
| CN115448495B (en) * | 2022-09-07 | 2024-01-26 | 清华大学 | Method for improving sewage resource utilization through membrane concentration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557743A (en) * | 2004-02-04 | 2004-12-29 | 同济大学 | Digesting treatment method for city domestic refuse and sludge of sewage plant by composite anaerobe |
| CN1903458A (en) * | 2006-07-31 | 2007-01-31 | 同济大学 | Dumping method for producing garbage dumping gas by using special garbage filling units |
| CN101148307A (en) * | 2007-08-28 | 2008-03-26 | 北京盖雅环境科技有限公司 | Anaerobic-aerobic-film processing technique for urban domestic refuse percolate |
| CN101462811A (en) * | 2007-12-21 | 2009-06-24 | 栗田工业株式会社 | Biological treatment method and apparatus for organic containing water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02207899A (en) * | 1989-02-07 | 1990-08-17 | Akua Runesansu Gijutsu Kenkyu Kumiai | Anaerobic two-phase type waste water treating system incorporating separator |
| JP2005103375A (en) * | 2003-09-29 | 2005-04-21 | Fuji Electric Holdings Co Ltd | Methane fermentation treatment method and apparatus |
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- 2010-07-20 CN CN2010102323409A patent/CN101905945B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557743A (en) * | 2004-02-04 | 2004-12-29 | 同济大学 | Digesting treatment method for city domestic refuse and sludge of sewage plant by composite anaerobe |
| CN1903458A (en) * | 2006-07-31 | 2007-01-31 | 同济大学 | Dumping method for producing garbage dumping gas by using special garbage filling units |
| CN101148307A (en) * | 2007-08-28 | 2008-03-26 | 北京盖雅环境科技有限公司 | Anaerobic-aerobic-film processing technique for urban domestic refuse percolate |
| CN101462811A (en) * | 2007-12-21 | 2009-06-24 | 栗田工业株式会社 | Biological treatment method and apparatus for organic containing water |
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Effective date of registration: 20220906 Address after: School of Environmental Science and Engineering, Sun Yat-sen University, University Town, Panyu District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangzhou Weiqi Biotechnology Co.,Ltd. Address before: 510275 No. 135 West Xingang Road, Guangdong, Guangzhou Patentee before: Liu Wei |