CN104743662A - Pulse type secondary concentric-circle baffling anaerobic hydrolysis reactor - Google Patents
Pulse type secondary concentric-circle baffling anaerobic hydrolysis reactor Download PDFInfo
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- CN104743662A CN104743662A CN201510093366.2A CN201510093366A CN104743662A CN 104743662 A CN104743662 A CN 104743662A CN 201510093366 A CN201510093366 A CN 201510093366A CN 104743662 A CN104743662 A CN 104743662A
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- 230000007062 hydrolysis Effects 0.000 title claims abstract description 29
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 238000006243 chemical reaction Methods 0.000 claims abstract description 83
- 239000010802 sludge Substances 0.000 claims abstract description 33
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 claims description 27
- 230000007423 decrease Effects 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 9
- 230000000630 rising effect Effects 0.000 claims description 5
- 210000000554 iris Anatomy 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract 3
- 239000002351 wastewater Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000005446 dissolved organic matter Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/284—Anaerobic digestion processes using anaerobic baffled reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Life Sciences & Earth Sciences (AREA)
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- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a pulse type secondary concentric-circle baffling anaerobic hydrolysis reactor. The pulse type secondary concentric-circle baffling anaerobic hydrolysis reactor comprises a pulse generator, a concentric-circle tank body, a large-resistance penetrating and water-distributing system, wherein the pulse generator is connected with a water inlet tube; the lower end of the pulse generator is connected with the concentric-circle tank body; the concentric-circle tank body comprises a first reaction region and a second reaction region positioned at the periphery of the first reaction region; the upper end of the large-resistance penetrating and water-distributing system is communicated with the pulse generator; the lower end of the large-resistance penetrating and water-distributing system extends to the bottom end of the first reaction region; a ring-shaped water slot is formed in the upper part of the first reaction region; more than one dropping baffling and water-distributing tube is arranged on the bottom of the ring-shaped water slot; the second reaction region comprises an efficient anaerobic stuffing region on the middle part and a clear region on the upper part; a sludge bucket is arranged on the bottom of the second reaction region; a hollow slot is formed in the outer side edge of the upper part of the clear water region in the second reaction region to form a water outlet slot; the water outlet slot is communicated with a water outlet tube; the clear water region is communicated with a water outlet reflux tube, and a sludge tube is arranged at the upper end of the sludge bucket.
Description
Technical field
The present invention relates to a kind of reactor, particularly a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor.
Background technology
Anaerobic hydrolysis reactor is widely used in the pre-treatment of high concentrated organic wastewater or hardly degraded organic substance waste water.It is by the control of anaerobic reaction time, utilize the anaerobion in reactor, retain non-dissolved organic matter in sewage on the one hand, make it progressively to change dissolved organic matter into, also the macromole organic pollutant of bio-refractory can be converted into the small organic molecule of readily biodegradable on the other hand, improve the biodegradability of waste water.Anaerobic hydrolysis pre-treatment, as organic waste water pre-acidified, can be follow-up complete anaerobic reactor and provides enough organic acids; For organic wastewater with difficult degradation thereby, anaerobic hydrolysis pre-treatment can improve the biodegradability of waste water, thus improves the efficiency of follow-up anoxic, aerobic biochemical technique unit, reduces cost for wastewater treatment.
At present, engineering is applied more anaerobic hydrolysis reactor and mainly comprise three classes: one is mechanical agitation type anaerobic reactor, and two is up-flow anaerobic sludge blanket or anaerobic filter, and three is baffling type anaerobic reactor.The shortcomings such as mechanical agitation type anaerobic reactor ubiquity energy consumption is large, and floor space is large, and agitator failure rate is high; The shortcomings such as it is less that up-flow anaerobic sludge blanket or anaerobic filter exist single pool volume, and water distribution system is complicated, involves great expense, and multiple reactor parallel connection management is more complicated; Baffling type anaerobic reactor there is uniformity of water distribution and muddy water mixed effect is poor, and mass-transfer efficiency is low, partition wall and flap many, the shortcomings such as Civil Cost is high, and volume effective rate of utilization is low.Along with China's water environment pollution problem is on the rise, increasing organic wastewater with difficult degradation thereby enters in water surrounding, and this brings larger opportunity also to the research of anaerobic hydrolysis reactor, improvement, application.According to the literature, Environmental Protection in China scientific worker has developed a series of upflowing, deflector type, Novel stirring type anaerobic hydrolysis reactor up to now.Such as University Of Chongqing Zhou Jian etc. propose a kind of three grades of concentrically ringed anoxic baffled reactors of peripherally-distributed water, be characterized in water distribution by outer shroud to inner ring, but still there is muddy water mixing not exclusively, anaerobic hydrolysis weak effect, water distributor easily blocks, and complex structure, cost is high, is difficult to the problems such as engineer applied.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor.
In order to solve the problems of the technologies described above, the invention discloses a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor, comprise surge generator, concentric(al) circles pond body, large resistance perforation water distribution system, described surge generator connects water inlet pipe, lower end connects concentric(al) circles pond body, concentric(al) circles pond body comprises the first reaction zone and is positioned at the second reaction zone of the first periphery, reaction zone, large resistance perforation water distribution system upper end is communicated with surge generator, large resistance perforation water distribution system lower end extends to the first bottom, reaction zone, described first top, reaction zone is provided with annular water tank, the decline baffling water distributor of more than one is provided with bottom described annular water tank, second reaction zone comprises the efficient anaerobic packing area and superposed clear water zone that are positioned at middle part, a circle sludge bucket is provided with bottom second reaction zone, in second reaction zone, the upper outside edge of clear water zone arranges a circle dead slot and forms effluent trough, effluent trough is communicated with a rising pipe, described clear water zone is communicated with an effluent recycling pipe, and sludge bucket upper end is provided with sludge pipe, and described sludge pipe stretches out second reaction zone and effluent recycling pipe and connects and be connected on return line, and return line accesses surge generator again.
In the present invention, described large resistance perforation water distribution system comprises pipe core, and surge generator lower end connects pipe core and passes into bottom the first reaction zone.
In the present invention, the diameter of described annular water tank is greater than the internal diameter of the first reaction zone, for the water sample in the first reaction zone is imported second reaction zone by decline baffling water distributor.
In the present invention, described large resistance perforation water distribution system comprises the pipe core and bottom tube vertically disposed with pipe core that connect surge generator.
In the present invention, described return line is provided with reflux pump.
In the present invention, described decline baffling water distributor leads to bottom second reaction zone, mixes with the mud bottom second reaction zone, increases hydrolysis biochemical reaction efficiency.
In the present invention, be provided with interior sludge bucket bottom described first reaction zone, interior sludge bucket upper end is provided with interior sludge pipe.
Beneficial effect: treating processes aspect: 1, the first reaction zone adopts centerburst water distribution, utilizes the large drag uniform water distribution of feeding and intermittent, the instantaneous upflow velocity of water distribution is large, muddy water good mixing effect, and mass-transfer efficiency is high, and anaerobic hydrolysis biochemical reaction efficiency is high;
2, second reaction zone Gao Jing (wide) is than large (2.5 ~ 4), middle part is provided with packing area, therefore can be considered as the compound anaerobic hydrolysis reactor of ring-type upflowing, has the mixing of up-flow reactor muddy water fully, the advantages such as acidication is thorough, and mud-water separation is effective simultaneously;
3, the first reaction zone water outlet enters second reaction zone by the many decline baffling water distributor multiple spot water distributions that annular water tank is laid and carries out depth hydrolysis's acidifying, promote that the segmentation of the non-solvent hardly degraded organic substance of macromole is effectively degraded, can efficient anaerobe filler be set in the middle part of second reaction zone simultaneously, be conducive to the lifting of acidication efficiency, increase the biodegradability of waste water;
4, second reaction zone water outlet or base sludge can be back to the first reaction zone, strengthen the hydraulic mixing effect of first, second reaction zone, improve anaerobic hydrolysis-acidification effect.
Investment operation aspect: 1, arrange two concentric cylinder configuration, outer shroud tank is provided with many decline baffling water distributors, realizes multiple spot baffling water distribution, structure is simple, and civil engineering cost is low;
2, the first reaction zone pulse water distribution uniformity, the water distribution time is short, and speed is fast, and outer ring adopts multiple spot baffling water distribution, and water distribution is even, and can play the effect of muddy water mix and blend, acidication is effective;
3, two concentric column first reaction zones and second reaction zone are independent mutually, avoid hydrolytic bacteria and methanogen mutually to suppress;
4, need not mechanical stirring, power consumption is little, and running cost is low.
Accompanying drawing explanation
To do the present invention below in conjunction with the drawings and specific embodiments and further illustrate, above-mentioned or otherwise advantage of the present invention will become apparent.
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated.
As Fig. 1, the present invention includes surge generator 1, large resistance perforation water distribution system 2, annular water tank 3, decline baffling water distributor 4, efficient anaerobic packing area 5, interior sludge bucket 6a, , outer sludge bucket 6, reflux pump 7, effluent trough 8, first reaction zone 9, second reaction zone 10, clear water zone 11, rising pipe 12, effluent recycling pipe 13, interior sludge pipe 14a, outer sludge pipe 14, water inlet pipe 15 and return line 16, wherein, water inlet pipe 15 connects surge generator 1, first reaction zone 9 forms concentric(al) circles pond body with second reaction zone 10, second reaction zone 10 is positioned at the periphery of the first reaction zone 9 and bottom does not communicate, the pipe core that surge generator 1 leads to excessive resistance perforation water distribution system 2 is connected to bottom the first reaction zone 9, it is efficient anaerobic packing area 5 in the middle part of second reaction zone 10, top is clear water zone 11, first top, reaction zone 9 is provided with the annular water tank 3 that diameter is greater than the first reaction zone, the bottom land that annular water tank 3 is positioned at second reaction zone part is provided with the decline baffling water distributor 4 that a group leads to bottom, second reaction zone 10, bottom, second reaction zone is provided with outer sludge bucket 6, upper end, clear water zone 11 arranged outside effluent trough 8 in second reaction zone 10, effluent trough 8 is communicated with rising pipe 12 in order to discharge the waste water after process, clear water zone 11 outer wall connects effluent recycling pipe 13, the outer sludge pipe being positioned at outer sludge bucket 6 upper end stretches out second reaction zone and effluent recycling pipe 13 is switched on return line 16, return line 16 accesses surge generator 1 again, return line 16 is provided with reflux pump 7, in order to effluent recycling pipe 13 and the water in outer sludge pipe 14 and mud are pumped into surge generator 1 again, interior sludge bucket 6a is provided with bottom first reaction zone, interior sludge bucket 6a upper end is provided with interior sludge pipe 14a, interior sludge pipe 14a is used for mud in the first reaction zone and discharges.
Two concentric column first reaction zones of the present invention do not communicate with bottom second reaction zone, be connected by the annular water tank 3 on top, annular water tank 3 diameter is greater than the diameter of the first reaction zone 9, decline baffling water distributor 4 is located at bottom the annular water tank 3 outside the first reaction zone, leads to the bottom of second reaction zone.
The present invention in use, waste water enters surge generator 1 by water inlet pipe 15 or return line 16 and mixes with returned sluge or recycling effluent, surge generator 1 leads to excessive resistance perforation water distribution system 2 intermittence and waste water is evenly distributed into the first reaction zone 9, the abundant hybrid reaction of mud bottom waste water and the first reaction zone, the muddy water mixed solution risen is after annular water tank 3 is collected, mud gravity flow is back to the first reaction zone 9, the decline baffling water distributor 4 that water outlet is arranged through annular water tank 3 multiple spot enters second reaction zone 10, again with mud hybrid reaction, efficient anaerobic packing area 5 is provided with in the middle part of second reaction zone 10, effluent trough 8 water outlet on top, efficient anaerobic packing area 5 directly enters subsequent reactions device by rising pipe 12 and processes, the water outlet of the mud of bottom, packing area 5 and the clear water zone 11 on top passes back in surge generator 1 through effluent recycling pipe 13 again, the first reaction zone 9 is entered after water distribution.
Embodiment 1
Certain printing and dyeing mill's comprehensive wastewater, after grid and first heavy equalizing tank, enter surge generator by pump, waste water interval is injected bottom the first reaction zone, large drag uniform water distribution, and waste water upflow velocity is large, hybrid reaction abundant with anaerobic sludge, water outlet through water leg collect after in outer shroud tank multiple spot decline baffling water distributor enter second reaction zone, muddy water mixing after the biomembranous reaction through packing area again, carry out depth hydrolysis's acidifying, water outlet directly enters subsequent biochemical treatment system.Engineering practice result shows, wastewater biodegradability significantly improves, and obtains good mud-water separation effect simultaneously.
Treatment effect is as follows: influent COD is 800mg/L, NH3-N be 25mg/L, TN be 45mg/L, TP is 6mg/L, colourity 800 times, B/C=0.17.After anaerobic hydrolysis reactor for treatment of the present invention, water outlet COD is 520mg/L, NH3-N be 36mg/L, TN be 42mg/L, TP is 5.1mg/L, colourity 160 times, B/C=0.32.
Embodiment 2
Certain Coal Chemical Industry garden factory effluent, reaches three grades of adapter standards through enterprise's pre-treatment and enters garden sewage work, main containing benzene class material in waste water.
Treatment effect is as follows: influent COD is 400mg/L, NH3-N be 40mg/L, TN is 60mg/L, colourity 300 times, B/C=0.2.After anaerobic hydrolysis reactor for treatment of the present invention, water outlet COD is 300mg/L, NH3-N be 50mg/L, TN is 54mg/L, colourity 120 times, B/C=0.28.
The invention provides a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor; the method and access of this technical scheme of specific implementation is a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each integral part not clear and definite in the present embodiment is realized.
Claims (7)
1. a pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor, it is characterized in that, comprise surge generator (1), concentric(al) circles pond body, large resistance perforation water distribution system (2), described surge generator (1) connects water inlet pipe (15), lower end connects concentric(al) circles pond body, concentric(al) circles pond body comprises the first reaction zone (9) and is positioned at the second reaction zone (10) of the first periphery, reaction zone, large resistance perforation water distribution system (2) upper end is communicated with surge generator (1), large resistance perforation water distribution system (2) lower end extends to the first reaction zone (9) bottom, described first reaction zone (9) top is provided with annular water tank (3), described annular water tank (3) bottom is provided with the decline baffling water distributor (4) of more than, second reaction zone (10) comprises the efficient anaerobic packing area (5) and superposed clear water zone (11) that are positioned at middle part, bottom, second reaction zone (10) is provided with the outer sludge bucket (6) of a circle, the upper outside edge of second reaction zone (10) interior clear water zone (11) arranges one and irises out tank (8), effluent trough (8) is communicated with a rising pipe (12), described clear water zone (11) is communicated with an effluent recycling pipe (13), outer sludge bucket (6) upper end is provided with outer sludge pipe (14), described outer sludge pipe (14) is stretched out second reaction zone and effluent recycling pipe (13) and is connected and be connected on return line (16), and return line (16) accesses surge generator (1) again.
2. a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor according to claim 1, it is characterized in that, described large resistance perforation water distribution system (2) comprises pipe core, and surge generator (1) lower end connects pipe core and passes into bottom, the first reaction zone (9).
3. a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor according to claim 1, it is characterized in that, the diameter of described annular water tank (3) is greater than the internal diameter of the first reaction zone (9).
4. a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor according to claim 1, is characterized in that, described large resistance perforation water distribution system comprises the pipe core and bottom tube vertically disposed with pipe core that connect surge generator.
5. a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor according to claim 1, it is characterized in that, described return line is provided with reflux pump (7).
6. a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor according to claim 1, is characterized in that, described decline baffling water distributor (4) leads to bottom, second reaction zone (10).
7. a kind of pulsed secondary concentric(al) circles deflector anaerobic hydrolysis reactor according to claim 1, it is characterized in that, be provided with interior sludge bucket (6a) bottom described first reaction zone, interior sludge bucket (6a) upper end is provided with interior sludge pipe (14a).
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| CN201510093366.2A CN104743662B (en) | 2015-03-02 | 2015-03-02 | Pulse type secondary concentric-circle baffling anaerobic hydrolysis reactor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106745723A (en) * | 2016-12-29 | 2017-05-31 | 山东利丰环保科技有限公司 | A kind of anaerobic biological reactor for having a pulse water distributing device |
| CN107585859A (en) * | 2017-09-13 | 2018-01-16 | 长江大学 | Vertical cylindrical ABR reactors |
| CN107952263A (en) * | 2017-10-26 | 2018-04-24 | 上海市政工程设计研究总院（集团）有限公司 | A kind of adaptive hydraulic cyclone desilting method changed greatly for turbidity |
| CN108821431A (en) * | 2018-08-06 | 2018-11-16 | 广州博环保科技有限公司 | A kind of speed change up-flow reactor for hydrolysis and acidification |
| CN109182111A (en) * | 2018-10-17 | 2019-01-11 | 太原理工大学 | A kind of CSTR reactor suitable for agricultural wastes biogas fermentation |
| CN110589965A (en) * | 2019-09-26 | 2019-12-20 | 沈阳环境科学研究院 | Hydrolysis acidification reactor |
| CN112390456A (en) * | 2019-08-13 | 2021-02-23 | 南京博知源环境科技有限公司 | Hospital sewage treatment system and method |
| CN113754060A (en) * | 2021-10-11 | 2021-12-07 | 北京建筑大学 | Multi-reaction-zone integrated combined treatment system and method for dispersed sewage |
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| JPS60244396A (en) * | 1984-05-21 | 1985-12-04 | Hideaki Ishikawa | Digestion tank of organic waste solution |
| JP2004195334A (en) * | 2002-12-17 | 2004-07-15 | Ebara Corp | Apparatus and method for anaerobic treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745723A (en) * | 2016-12-29 | 2017-05-31 | 山东利丰环保科技有限公司 | A kind of anaerobic biological reactor for having a pulse water distributing device |
| CN107585859A (en) * | 2017-09-13 | 2018-01-16 | 长江大学 | Vertical cylindrical ABR reactors |
| CN107585859B (en) * | 2017-09-13 | 2020-12-01 | 长江大学 | Vertical cylindrical ABR reactor |
| CN107952263A (en) * | 2017-10-26 | 2018-04-24 | 上海市政工程设计研究总院（集团）有限公司 | A kind of adaptive hydraulic cyclone desilting method changed greatly for turbidity |
| CN107952263B (en) * | 2017-10-26 | 2024-04-05 | 上海市政工程设计研究总院（集团）有限公司 | Self-adaptive hydrocyclone sand settling method for large turbidity change |
| CN108821431A (en) * | 2018-08-06 | 2018-11-16 | 广州博环保科技有限公司 | A kind of speed change up-flow reactor for hydrolysis and acidification |
| CN109182111A (en) * | 2018-10-17 | 2019-01-11 | 太原理工大学 | A kind of CSTR reactor suitable for agricultural wastes biogas fermentation |
| CN112390456A (en) * | 2019-08-13 | 2021-02-23 | 南京博知源环境科技有限公司 | Hospital sewage treatment system and method |
| CN110589965A (en) * | 2019-09-26 | 2019-12-20 | 沈阳环境科学研究院 | Hydrolysis acidification reactor |
| CN113754060A (en) * | 2021-10-11 | 2021-12-07 | 北京建筑大学 | Multi-reaction-zone integrated combined treatment system and method for dispersed sewage |
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| Publication number | Publication date |
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| CN104743662B (en) | 2017-01-18 |
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