CN109205937A - Biochemical sludge zero-emission sewage treatment process - Google Patents
Biochemical sludge zero-emission sewage treatment process Download PDFInfo
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- CN109205937A CN109205937A CN201811149936.5A CN201811149936A CN109205937A CN 109205937 A CN109205937 A CN 109205937A CN 201811149936 A CN201811149936 A CN 201811149936A CN 109205937 A CN109205937 A CN 109205937A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
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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
- C02F3/30—Aerobic and anaerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a kind of biochemical sludge zero-emission sewage treatment process, including newly built and improved biochemical sludge zero-emission sewage treatment process, two kinds of biochemical sludge zero-emission sewage treatment process, it is that excess sludge is subjected to anaerobism and/or Aerobic Process for Treatment, generate protein and glycogen, protein generated and glycogen are flowed back into sewage disposal system again again and recycled, and the glycogen of sludge disintegration provides high-quality nutrition for sewage treatment, improves the biodegradability of sewage.The raising of matrix energy enhances microbial activity, improves the microbial biomass of sewage disposal system.It can be seen that the present invention can degrade the excess sludge in sewage disposal process, digestion, achievees the effect that sludge zero discharge, reduce secondary pollution.
Description
Technical field
The present invention relates to technical field of sewage, in particular to a kind of biochemical sludge zero-emission sewage treatment process.
Background technique
The most important pollutant of sewage treatment is organic matter, is mainly derived from human lives' waste, excreta, food
Processing, life washing waste water.The organic matter that these waste water are included understands that it is carbohydrate from life science angle,
Namely glycogen.
The nutrition such as moisture, nitrogen, phosphorus, potassium of the carbohydrate source in growing plants on the earth, plant absorption soil
Substance absorbs the carbon dioxide in air by photosynthesis, generates grain, the food such as fruits and vegetables, for human lives.The mankind are raw
Organic waste living is discharged into water body and soil.
According to the rule of cosmic energy circulation conservation, the organic waste of human lives is discharged into water body or soil, water body and
These organic wastes are resolved into the substances such as carbon dioxide, water, nitrogen automatically and participate in universe by the microbes in soil
In energy circulation, chilly can't be generated.
The development of modern society, the high concentration on human living ground, enriching for living material cause a large amount of of organic matter
It concentrates and discards, have exceeded the environmental load of local environment, cause ecological disruption, universe and natural ecology have been blocked as sore carbuncle
Energy circulation, thus cause environmental disruption and deterioration.
To solve the problems, such as some areas environmental degradation, man invented sewage treatment process, so as to improving environment and take
Certain effect was obtained, sewage treatment is quickly grown all over the world.In sewage disposal process, the sludge in a heavy pond is less, main
It to be the harder impurity not soluble in water such as silt, clay.The sludge 80% of secondary settling tank discharge has been feeding microorganism, the sludge water content
Content is up to 98%, and difficult dehydration, and processing cost is high, easily causes secondary environmental pollution.
Summary of the invention
For disadvantages described above, technical problem to be solved by the invention is to provide a kind of biochemical sludge zero-emission sewage treatments
Technique, the technique by sewage disposal process the degradation of remaining biochemical sludge, digest for carbon dioxide, water and nitrogen, reach dirt
The effect of mud zero-emission, reduces secondary pollution.
In order to solve the above technical problems, the technical scheme is that
A kind of biochemical sludge zero-emission sewage treatment process carries out biochemical treatment to sewage using activated sludge, generated surplus
Remaining sludge generates protein through anaerobism and/or Aerobic Process for Treatment and glycogen, protein and glycogen generated flow back at sewage again
It is recycled in reason system, resolves into carbon dioxide, water and nitrogen by iterative cycles.
Preferred embodiment is to be based on A2O sewage treatment process, the specific step of the biochemical sludge zero-emission sewage treatment process
It is rapid as follows:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters a heavy pond after S2, filtering, removes heavy impurity in a heavy pond precipitating, separates and be discharged the anaerobism of precipitating
Sludge；
S3, the sewage by a heavy pond precipitating enter A2The pond O enters secondary settling tank after anaerobism and oxygen, aerobic degradation purification；
S4, mud-water separation, permitted discharge outlet are carried out in secondary settling tank, while precipitation and separation goes out excess sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the lattice again
Grid well is recycled to, and resolves into carbon dioxide, water and nitrogen by iterative cycles.
Preferred embodiment is to be based on AO sewage treatment process, the specific step of the biochemical sludge zero-emission sewage treatment process
It is rapid as follows:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters a heavy pond after S2, filtering, removes heavy impurity in a heavy pond precipitating, separates and be discharged the anaerobism of precipitating
Sludge；
S3, the sewage by a heavy pond precipitating enter the pond AO, enter secondary settling tank after anoxic, aerobic degradation purification；
S4, mud-water separation, permitted discharge outlet are carried out in secondary settling tank, while precipitation and separation goes out excess sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the lattice again
Grid well is recycled to, and resolves into carbon dioxide, water and nitrogen by iterative cycles.
Preferred embodiment is to be based on SBR sewage treatment process, the specific step of the biochemical sludge zero-emission sewage treatment process
It is rapid as follows:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters conditioning tank after S2, filtering, precipitates spoil disposal, exhaust in conditioning tank；
S3, enter sbr reactor pond by the sewage that conditioning tank precipitates, through collection homogenizing, just heavy, biodegrade, two it is heavy after, exhaust；
S4, enter sedimentation basin by the sewage that sbr reactor is eaten, carry out mud-water separation in sedimentation basin, permitted discharge outlet remains simultaneously
Remaining sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the lattice again
Grid well is recycled to, and resolves into carbon dioxide, water and nitrogen by iterative cycles.
Preferred embodiment is to be based on oxidation ditch sewage treatment technology, the tool of the biochemical sludge zero-emission sewage treatment process
Steps are as follows for body:
After S1, sewage enter in end to end oxidation ditch, by aeration repeatedly, precipitating, remaining dirt in the oxidation ditch
Mud and discharge water up to standard；
S2, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the oxygen again
Change ditch, by resolving into carbon dioxide, water and nitrogen repeatedly.
Biochemical sludge zero-emission sewage treatment process, comprising the following steps: sewage sequentially enter sludge zero discharge equipment,
ABR reactor and CSBR reactor, the excess sludge that sewage goes out in the ABR reactor precipitation and separation, and in the CSBR
The excess sludge separated is precipitated in reactor, which generates protein and glycogen through anaerobism and/or Aerobic Process for Treatment, gives birth to
At protein and glycogen flow back again the ABR reactor cycles, resolve into carbon dioxide, water and nitrogen repeatedly by circulation.
After above-mentioned technical proposal, the beneficial effects of the present invention are:
Due to biochemical sludge zero-emission sewage treatment process of the present invention, including newly-built biochemical sludge zero-emission sewage treatment process and
Biochemical sludge zero-emission sewage treatment process is transformed；No matter which kind of biochemical sludge zero-emission sewage treatment process, being will be remaining
Sludge carries out anaerobism and/or Aerobic Process for Treatment, generates protein and glycogen, then protein generated and glycogen are flowed back into dirt again
It recycles, and is participated in sewage treatment in water treatment system, resolve into carbon dioxide, water and nitrogen repeatedly by circulation, thus
Achieve the purpose that sewage treatment zero-emission, while having eliminated secondary pollution, saves the expense of excess sludge processing.Meanwhile
It resolves into the matrix of glycogen and provides a large amount of high-quality nutrition for sewage treatment, improve the biodegradability of sewage.Matrix energy
Raising enhances microbial activity, and substantially increases the microbial biomass of sewage disposal system.The promotion of microbial biomass makes sewage
Processing system treatment effeciency improves, and sewage treatment capacity enhancing, effluent quality also has larger improvement.
Detailed description of the invention
Fig. 1 is the flow diagram that biochemical sludge zero-emission sewage treatment process is created in embodiment one；
Fig. 2 is the flow diagram for the biochemical sludge zero-emission sewage treatment process being transformed in embodiment two；
Fig. 3 is the flow diagram that activated sludge sewage disposal process is utilized in embodiment two；
Fig. 4 is the schematic diagram of CSBR reactor in embodiment one；
Fig. 5 is the schematic diagram of sbr reactor device in embodiment one；
Fig. 6 is in embodiment two based on A2The process of the biochemical sludge zero-emission sewage treatment process of O sewage treatment process is illustrated
Figure.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.
Embodiment one:
As shown in Figure 1, Figure 4 and Figure 5, a kind of biochemical sludge zero-emission sewage treatment process, comprising the following steps:
Sewage sequentially enters sludge zero discharge equipment, the ABR(Chinese meaning is anaerobism sewage treatment process) reactor and CSBR(be
The english abbreviation of ContinuousfLowconstantLeveLsequencingbatchreactor) reactor, sewage is in ABR
The excess sludge that reactor precipitation and separation goes out, and the excess sludge separated is precipitated in CSBR reactor, it carries out respectively remaining
Treatment of Sludge, specifically:
Excess sludge generates protein and glycogen through anaerobism and/or Aerobic Process for Treatment, and protein and glycogen generated flow back ABR again
Reactor cycles resolve into carbon dioxide, water and nitrogen by circulation repeatedly.
As shown in Figure 4 and Figure 5, ABR reactor and CSBR reactor used in the present invention are as shown in the figure, are existing skill
Art is not described in detail herein.
As shown in Figure 1, Figure 4 and Figure 5, the newly-built biochemical sludge zero-emission sewage treatment process in the present embodiment, because will be dirty
Excess sludge in water process has carried out Anaerobic Treatment, so that remaining biochemical sludge is broken down into protein and glycogen, this is decomposed into
The matrix of glycogen is back in ABR reactor again and is recycled, and resolves into carbon dioxide, water and nitrogen by iterative cycles, row
It is put into universe, it is seen then that sewage treatment process of the invention has achieved the purpose that sewage treatment zero-emission, eliminates secondary dirt
Dye saves the expense of excess sludge processing.Meanwhile the matrix for being decomposed into glycogen is admitted in ABR reactor, and participates in dirt
In water process, which provides a large amount of high-quality nutrition for sewage disposal system, improves the biodegradability of sewage.Matrix energy
Raising enhance microbial activity, and substantially increase the microbial biomass of sewage disposal system.The promotion of microbial biomass makes dirt
Water treatment system treatment effeciency improves, and sewage treatment capacity enhancing, effluent quality also has larger improvement.
Embodiment two:
The present embodiment is basically the same as the first embodiment, the difference is that:
As shown in Figures 2 and 3, the biochemical sludge zero-emission sewage treatment process in this example carries out sewage using activated sludge
Biochemical treatment, generated excess sludge generate protein and glycogen through anaerobism and/or Aerobic Process for Treatment, protein generated and
Glycogen flows back into sewage disposal system recycle again, resolves into carbon dioxide, water and nitrogen by iterative cycles.
Technique in this example using Sewage Treatment for Activated Sludge includes following several:
As shown in Figure 2 and Figure 6, it is based on A2O sewage treatment process, the specific steps of biochemical sludge zero-emission sewage treatment process are such as
Under:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters a heavy pond after S2, filtering, removes heavy impurity in a heavy pond precipitating, separates and be discharged the anaerobism of precipitating
Sludge；
S3, the sewage by a heavy pond precipitating enter A2The pond O enters secondary settling tank after anaerobism and oxygen, aerobic degradation purification；
S4, mud-water separation, permitted discharge outlet are carried out in secondary settling tank, while precipitation and separation goes out excess sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into grille well again
Circulation, resolves into carbon dioxide, water and nitrogen by iterative cycles.
Based on AO sewage treatment process, specific step is as follows for biochemical sludge zero-emission sewage treatment process:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters a heavy pond after S2, filtering, removes heavy impurity in a heavy pond precipitating, separates and be discharged the anaerobism of precipitating
Sludge；
S3, the sewage by a heavy pond precipitating enter the pond AO, enter secondary settling tank after anoxic, aerobic degradation purification；
S4, mud-water separation, permitted discharge outlet are carried out in secondary settling tank, while precipitation and separation goes out excess sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into grille well again
Circulation, resolves into carbon dioxide, water and nitrogen by iterative cycles.
Based on SBR sewage treatment process, specific step is as follows for biochemical sludge zero-emission sewage treatment process:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters conditioning tank after S2, filtering, precipitates spoil disposal, exhaust in conditioning tank；
S3, enter sbr reactor pond by the sewage that conditioning tank precipitates, through collection homogenizing, just heavy, biodegrade, two it is heavy after, exhaust；
S4, enter sedimentation basin by the sewage that sbr reactor is eaten, carry out mud-water separation in sedimentation basin, permitted discharge outlet remains simultaneously
Remaining sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into grille well again
Circulation, resolves into carbon dioxide, water and nitrogen by iterative cycles.
Based on oxidation ditch sewage treatment technology, specific step is as follows for biochemical sludge zero-emission sewage treatment process:
S1, sewage enter end to end oxidation ditch in after, in oxidation ditch by repeatedly aeration, precipitating, excess sludge and
Water up to standard is discharged；
S2, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into oxidation ditch again,
By resolving into carbon dioxide, water and nitrogen repeatedly.
The technique that Sewage Treatment for Activated Sludge is either utilized based on that is all on existing sewage treatment process basis
On, biochemical sludge zero-emission equipment is increased, the former excess sludge for being sent into the dehydration of Treatment of Sludge workshop is made to be sent into biochemical sludge
In zero-emission equipment, protein and glycogen are resolved into through Anaerobic Treatment in biochemical sludge zero-emission equipment, then flow back into sewage
It is recycled in processing, is carbon dioxide, water, nitrogen by recycling decomposition repeatedly, digesting, participates in cosmic energy circulation.Lead in this example
It crosses and the biochemical sludge zero-emission sewage treatment process that existing sewage treatment process obtains is transformed, on the basis for realizing sludge zero discharge
On, the investment in Facilities Construction is saved, secondary pollution is decreased, is had high economic benefit and social effect.
The excess sludge discharged in the present embodiment 80% is aerobic microbiological, which is up to 98%, and
Hardly possible dehydration, processing cost are high.Wherein, aerobic microbiological is unicellular microorganism, and main component is protein, is finally decomposed to
Glycogen.Glycogen is the most basic structure for forming life entity, is the most basic element of life entity, is the indispensable battalion of biological growth
It supports.
Biochemical sludge zero-emission sewage treatment process of the invention, the principle of basis is: aerobic microbiological is in anaerobism item
Can be dead under part, self-dissolving is protein, glycogen, and is absorbed and utilized, degrades for anaerobe.Anaerobe is in aerobic condition
Under also can be dead, self-dissolving is protein, glycogen, and is absorbed for aerobic microbiological, degradation.Reciprocation cycle forms complete bio chain,
Organic pollutant, which is eventually completed to be decomposed into carbon dioxide, water and nitrogen, to be participated in cosmic energy systemic circulation, will not be generated surplus
Remaining sludge, causes secondary pollution.
The present invention is not limited to above-mentioned specific embodiment, those skilled in the art from the above idea,
Without creative labor, the various transformation made are within the scope of the present invention.
Claims (6)
1. biochemical sludge zero-emission sewage treatment process, which is characterized in that carry out biochemical treatment, institute to sewage using activated sludge
The excess sludge of generation generates protein through anaerobism and/or Aerobic Process for Treatment and glycogen, protein and glycogen generated flow back again
It is recycled into sewage disposal system, resolves into carbon dioxide, water and nitrogen by iterative cycles.
2. biochemical sludge zero-emission sewage treatment process according to claim 1, which is characterized in that be based on A2O sewage treatment
Technique, specific step is as follows for the biochemical sludge zero-emission sewage treatment process:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters a heavy pond after S2, filtering, removes heavy impurity in a heavy pond precipitating, separates and be discharged the anaerobism of precipitating
Sludge；
S3, the sewage by a heavy pond precipitating enter A2The pond O enters secondary settling tank after anaerobism and oxygen, aerobic degradation purification；
S4, mud-water separation, permitted discharge outlet are carried out in secondary settling tank, while precipitation and separation goes out excess sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the lattice again
Grid well is recycled to, and resolves into carbon dioxide, water and nitrogen by iterative cycles.
3. biochemical sludge zero-emission sewage treatment process according to claim 1, which is characterized in that be based on AO sewage treatment
Technique, specific step is as follows for the biochemical sludge zero-emission sewage treatment process:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters a heavy pond after S2, filtering, removes heavy impurity in a heavy pond precipitating, separates and be discharged the anaerobism of precipitating
Sludge；
S3, the sewage by a heavy pond precipitating enter the pond AO, enter secondary settling tank after anoxic, aerobic degradation purification；
S4, mud-water separation, permitted discharge outlet are carried out in secondary settling tank, while precipitation and separation goes out excess sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the lattice again
Grid well is recycled to, and resolves into carbon dioxide, water and nitrogen by iterative cycles.
4. biochemical sludge zero-emission sewage treatment process according to claim 1, which is characterized in that based at SBR sewage
Science and engineering skill, specific step is as follows for the biochemical sludge zero-emission sewage treatment process:
S1, sewage enter grille well and are filtered processing, remove biggish impurity；
Sewage enters conditioning tank after S2, filtering, precipitates spoil disposal, exhaust in conditioning tank；
S3, enter sbr reactor pond by the sewage that conditioning tank precipitates, through collection homogenizing, just heavy, biodegrade, two it is heavy after, exhaust；
S4, enter sedimentation basin by the sewage that sbr reactor is eaten, carry out mud-water separation in sedimentation basin, permitted discharge outlet remains simultaneously
Remaining sludge；
S5, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the lattice again
Grid well is recycled to, and resolves into carbon dioxide, water and nitrogen by iterative cycles.
5. biochemical sludge zero-emission sewage treatment process according to claim 1, which is characterized in that be based on oxidation ditch sewage
Treatment process, specific step is as follows for the biochemical sludge zero-emission sewage treatment process:
After S1, sewage enter in end to end oxidation ditch, by aeration repeatedly, precipitating, remaining dirt in the oxidation ditch
Mud and discharge water up to standard；
S2, excess sludge generates protein through Anaerobic Treatment and glycogen, protein and glycogen generated flow back into the oxygen again
Change ditch, by resolving into carbon dioxide, water and nitrogen repeatedly.
6. biochemical sludge zero-emission sewage treatment process, which comprises the following steps:
Sewage sequentially enters sludge zero discharge equipment, ABR reactor and CSBR reactor, and sewage is precipitated in the ABR reactor
The excess sludge isolated, and precipitate the excess sludge separated in the CSBR reactor, the excess sludge through anaerobism and/
Or Aerobic Process for Treatment generates protein and glycogen, protein and glycogen generated flow back the ABR reactor cycles again, by following
Ring resolves into carbon dioxide, water and nitrogen repeatedly.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885570A (en) * | 2009-05-15 | 2010-11-17 | 深圳市金达莱环保股份有限公司 | Sludge treatment method |
| CN104817237A (en) * | 2015-05-15 | 2015-08-05 | 重庆交通大学 | Biological sludge zero-discharge sewage treatment plant and method |
| CN105060642A (en) * | 2015-08-12 | 2015-11-18 | 中国科学院重庆绿色智能技术研究院 | Sewage treatment method and system used for enhancing phosphorus and nitrogen removal and based on sludge carbon source circulation |
-
2018
- 2018-09-29 CN CN201811149936.5A patent/CN109205937A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885570A (en) * | 2009-05-15 | 2010-11-17 | 深圳市金达莱环保股份有限公司 | Sludge treatment method |
| CN104817237A (en) * | 2015-05-15 | 2015-08-05 | 重庆交通大学 | Biological sludge zero-discharge sewage treatment plant and method |
| CN105060642A (en) * | 2015-08-12 | 2015-11-18 | 中国科学院重庆绿色智能技术研究院 | Sewage treatment method and system used for enhancing phosphorus and nitrogen removal and based on sludge carbon source circulation |
Non-Patent Citations (2)
| Title |
|---|
| 全国勘察设计注册工程师环保专业管理委员会，中国环境保护产业协会: "《注册环保工程师专业考试复习教材 水污染防治工程技术与实践 上》", 31 March 2017 * |
| 周长林: "《微生物学与免疫学》", 31 July 2013, 中国医药科技出版社 * |
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Application publication date: 20190115 |
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