CN114853171A - Adjustable rural sewage treatment method - Google Patents
Adjustable rural sewage treatment method Download PDFInfo
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- CN114853171A CN114853171A CN202210533660.0A CN202210533660A CN114853171A CN 114853171 A CN114853171 A CN 114853171A CN 202210533660 A CN202210533660 A CN 202210533660A CN 114853171 A CN114853171 A CN 114853171A
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- 239000010865 sewage Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000033228 biological regulation Effects 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 81
- 238000005192 partition Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000005842 biochemical reaction Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 238000000265 homogenisation Methods 0.000 claims description 2
- 238000003973 irrigation Methods 0.000 claims description 2
- 230000002262 irrigation Effects 0.000 claims description 2
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000010841 municipal wastewater Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
- C02F2203/002—Apparatus and plants for the biological treatment of water, waste water or sewage comprising an initial buffer container
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (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 relates to the technical field of rural sewage treatment, in particular to an adjustable rural sewage treatment method, which adopts a coupling process of a regulation pool, a biochemical treatment pool and an emergency treatment facility, and divides the biochemical treatment pool into 3-4 spaces during conventional use, wherein the three spaces are respectively an anaerobic (A), an anoxic (A) and an aerobic (O) space; the biochemical treatment tank is divided into four spaces, namely an anaerobic space (A), an anoxic space (A), an aerobic space (O) and an MBR space. The regulation and storage tank adopts large volume, the sewage treatment station adopts small volume, the regulation and storage tank and the biochemical treatment tank are mutually connected and interacted, the space at the front end of the biochemical treatment can be used for regulation and storage, and the process of the biochemical section can be converted in situ. And (4) combining with the actual situation, establishing a scheduling mechanism with the sewage treatment plants in the villages and towns to form an operation mode of circular scheduling of the large pool and the small stations.
Description
Technical Field
The invention relates to the technical field of rural sewage treatment, in particular to an adjustable rural sewage treatment method.
Background
In recent years, with the increasing living standard of people, the contradiction between the increasing demand of beautiful life and the unbalanced and insufficient development of people is more and more prominent. The demand for sewage treatment has not been limited to cities and towns, and the demand for sewage treatment in rural areas has been rising year by year. Under the promotion of human living environment improvement and village joy, rural sewage treatment develops rapidly, the number of miniature sewage treatment stations increases exponentially, but the process technology for rural sewage characteristic develops slowly.
The rural areas of China have complex landforms, large difficulty in unified sewage collection, poor distribution of rain and sewage, few resident population and the like, so that the rural sewage flow and water quality fluctuation is large, most of daily rural sewage treatment stations cannot reach the designed treatment capacity, equipment is excessively used, the energy consumption is increased, even due to the fact that the flow is cut off due to too little water, treatment facilities cannot continuously operate, and the sludge activity is deteriorated and even microorganisms die. In rainy season, due to poor distribution of rain and sewage, the leakage of a pipe network is serious, the water quantity is increased suddenly and exceeds the designed treatment capacity, the water quality concentration is lower, a large amount of medicament is consumed, and the sewage cannot be completely treated, so that troubles are caused to the life of local residents. The water quality and the water quantity are increased in holidays and exceed the treatment capacity, and the degree of automation control is low, process equipment cannot continuously run, operation and maintenance management personnel are limited, so that the rural sewage treatment operation and maintenance are difficult.
At present, the rural sewage treatment process moves to a city mode, the problem of water quality and water quantity change is not considered, a regulation and storage tank and emergency treatment are not arranged, and meanwhile, the process also has no adjustability, so that the water treatment cost is greatly increased, equipment is wasted in implementation, the medicament loss can not meet the requirements of people, a novel method suitable for the water quality and water quantity change of rural sewage is urgently needed to be explored, the civil problem of rural sewage treatment is solved, the aims of low rural sewage treatment cost, high operation efficiency and construction and development of ecological civilization are met.
Disclosure of Invention
The invention aims to provide an adjustable rural sewage treatment method, which solves the technical problems that the rural sewage treatment mode is single, the water quality and water quantity change is not considered, the process conversion is difficult and the like in the prior art.
An adjustable rural sewage treatment method adopts a coupling process of a regulation pool, a biochemical treatment pool and an emergency treatment facility. Collecting rural sewage, carrying out regulation homogenization treatment on the rural sewage in a regulation tank of a miniature sewage treatment station for 8-60 hours, then, entering a biochemical treatment tank for 5-15 hours, and starting an emergency treatment facility if necessary.
Furthermore, the emergency treatment facility can be used as a clean water tank during normal operation, and the stored water can be used as agricultural irrigation, greening, landscape water and the like.
Furthermore, the storage tank is a large storage tank, the biochemical treatment is a small treatment station, and the treatment capacity of the conventional biochemical treatment station is 50-500m 3 And d, the processing capacity of the small processing station is 0.7-0.9 times of the designed processing capacity of the conventional biochemical processing station, a large tank and small station mode is formed, and the ratio of the volume of the regulating and storing tank to the volume of the biochemical processing tank is (1.5-8): 1, the increase of sewage treatment capacity is realized, and the effluent quality meets the standard.
Through setting up the regulation pond volume, can adopt the method of "big pond little station", build miniature sewage treatment station, the regulation pond adopts big volume, realizes the sewage treatment capacity increase, goes out the requirement that water quality of water is up to standard.
Further, when the device is used conventionally, the biochemical treatment tank is divided into 3-4 spaces, wherein the 3 spaces are respectively an anaerobic (A), an anoxic (A) and an aerobic (O) space; the 4 spaces are respectively anaerobic (A), anoxic (A), aerobic (O) and MBR spaces.
Furthermore, when the water volume is large and the equipment cannot be processed, the regulation and storage tank is connected, the water is stored in the regulation and storage tank firstly, and then the treatment is carried out.
Further, when the water volume of the micro sewage treatment station exceeds the treatment capacity, part of the space in the biochemical treatment tank is used as water storage, and the biochemical treatment tank is operated by AO, SBR or MBBR biochemical reaction process.
The regulation and storage capacity of the device is improved by using part of the space of the biochemical treatment tank as water storage.
Furthermore, when the water quantity is too large and cannot be treated, the excessively increased sewage is transferred to a nearby rural water plant or a resource utilization point, and when the water quantity is suddenly reduced, the sewage can be transferred from the rural water plant to the miniature sewage treatment station.
And finishing sewage treatment by using a sewage treatment cyclic scheduling method.
Furthermore, the treated sewage is not discharged to the front end of the biochemical treatment tank when the quality of the treated sewage fails to meet the discharge standard.
The invention discloses an adjustable rural sewage treatment device, wherein a partition plate is arranged in a biochemical treatment tank and is used for dividing the biochemical treatment tank into different spaces.
Furthermore, the partition plate is made of stainless steel or cast iron.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention innovatively provides a rural sewage treatment mode of large pool, small station and circular scheduling, and can be used for treating rural sewage of social life or solitary life. The large storage regulation tank increases the regulation capacity of front-end treatment for balancing water quality and water quantity, and increases the peak value treatment capacity; the large pool and the small station ensure the continuous operation of the system, avoid the unstable operation of a biochemical system, the abnormal growth and metabolism of microorganisms, the low operation efficiency of equipment and the like, and reduce the operation cost;
2. the invention firstly provides a method for communicating storage and biochemical treatment, which increases the storage elasticity, solves the problem of abnormal increase and decrease of water quantity by utilizing the water outlet circulation and the sewage transfer equipment scheduling and ensures the water quality of outlet water;
3. the invention innovatively provides a biochemical treatment process for sewage by in-situ adjustment according to the quality and quantity of inlet and outlet water, realizes 'process adjustment' and 'time-space adjustment', meets the effluent quality, and simultaneously reduces the medicine consumption and energy consumption to low levels to fit the strategy of carbon peak reaching and carbon neutralization.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention are described clearly and completely below, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments.
Example 1
An adjustable rural sewage treatment method adopts a coupling process of a regulation pool, a biochemical treatment pool and an emergency treatment facility to communicate the regulation pool with biochemical treatment, and when the regulation pool is used conventionally, the biochemical treatment pool is divided into 3 spaces, wherein the 3 spaces are anaerobic (A), anoxic (A) and aerobic (O) spaces respectively.
Example 2
An adjustable rural sewage treatment method, which discloses the following improvement on the basis of an embodiment 1, and the design treatment scale is 100m 3 And d, when the device is used conventionally, the biochemical treatment tank is divided into three spaces by the partition board, the three spaces are respectively an anaerobic space (A), an anoxic space (A) and an aerobic space (O), and the muddy water mixed liquor in the aerobic space (O) flows back to the front end of the anoxic space (A). The inlet water is sequentially subjected to anaerobic treatment, anoxic treatment and aerobic treatment, and then is precipitated and discharged as clear water. When the daily treatment is good, the treated water amount is 55m 3 And the effluent standard is the first grade B standard of pollutant discharge Standard of municipal wastewater treatment plant (GB 18918-2002). According to statistics, due to the fact that the population of the ordinary people is small, the facilities are prone to flow cutoff, the sludge activity is poor, and continuous operation of equipment is difficult.
A front end storage tank is added, and the volume is 50m 3 Daily biochemical treatment scale 85m 3 (d) daily water regulation and storage of about 25m 3 . In rainy season or holidays, the regulation and storage tank stores all water, and then the water is continuously treated, and the annual average treated sewage quantity is 75m 3 And d, the effluent standard is unchanged. In spring festival, the water volume is large, the water quality concentration is increased, and the water is transported to a sewage treatment station of villages and towns for dispatching and treatment by using a transport facility.
Example 3
An adjustable rural sewage treatment method is disclosed on the basis of embodiment 1, and is characterized in that the water quality concentration far exceeds the average value of inlet water quality of urban sewage or the requirement of outlet water quality is higher than the standard B of the first level of pollutant discharge standard of urban sewage treatment plant (GB18918-2002), a biochemical treatment tank is divided into four spaces by a partition plate, the four spaces are respectively anaerobic (A), anoxic (A), aerobic (O) and MBR spaces, aeration devices are arranged in the aerobic (O) space and the MBR space, an MBR is arranged in the MBR space, sludge-water mixed liquid in the MBR space flows back to the front end of the aerobic (O) space, sludge-water mixed liquid at the tail end of the aerobic (O) space flows back to the front end of the anoxic (A) space, and sludge-water mixed liquid at the tail end of the anoxic (A) space flows back to the front end of the anaerobic (A) space. Respectively realizing the purposes of anaerobic (A), anoxic (A), aerobic (O) and membrane tank (MBR) in turnAnd filtering the sludge-water mixed liquor in the membrane tank by an MBR membrane, and discharging water under the action of a water production pump. Design processing Scale 100m 3 D, regulating reservoir volume 70m 3 Filtering the sludge-water mixed liquor in the membrane tank by an MBR (membrane bioreactor) membrane module, and discharging water under the action of a water production pump, wherein the daily treated water amount is 85m 3 And d, because the permeability of the MBR membrane module is reduced after long-time operation, sodium hypochlorite is needed to be subjected to online alkali washing for 3-5 days, citric acid is needed to be subjected to online acid washing every month, one water production pump, one air blower and three reflux pumps are commonly used, and the effluent standard is the first-class A standard of pollutant discharge Standard of municipal wastewater treatment plant (GB 18918-2002).
Example 4
An adjustable rural sewage treatment method is disclosed on the basis of an embodiment 1, and when the inflow water volume of a micro sewage treatment station exceeds 10% of treatment capacity, all reflux pumps are closed, an anaerobic (A) space and an anoxic (A) space are vacant, a flow guide port of an anoxic (A) space partition plate 4 is closed at the same time, the anaerobic (A) space and the anoxic (A) space are linked with a regulation and storage facility to jointly store water, an aerobic (O) space is separated into an SBR biochemical reaction process with five stages of water inlet, aeration, sedimentation, water outlet and idling from a time dimension, at the moment, a water production pump is not needed to pump water through an MBR membrane, and the regulation and storage capacity of the facility is improved by a regulation and storage pool, the anaerobic (A) space and the anoxic (A) space.
Example 5
An adjustable rural sewage treatment method is disclosed on the basis of embodiment 1, and the improvement is that when the water quantity is too large and cannot be treated, excessively increased sewage is transported to a nearby rural water plant or resource utilization point, when the water quantity is suddenly reduced, the sewage can be transported from the rural water plant to a micro sewage treatment station, and the treated sewage is returned to the front end of a biochemical treatment tank when the water quality concentration does not meet the discharge standard.
And finishing sewage treatment by using a sewage treatment cyclic scheduling method.
The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.
Claims (10)
1. An adjustable rural sewage treatment method is characterized in that a regulation and storage tank-biochemical treatment tank-emergency treatment facility coupling process is adopted to communicate the regulation and storage tank with the biochemical treatment tank, and when the regulation and storage tank is used conventionally, the biochemical treatment tank is divided into 3-4 spaces, wherein the 3 spaces are respectively anaerobic spaces, anoxic spaces and aerobic spaces; the 4 spaces are respectively anaerobic, anoxic, aerobic and MBR spaces.
2. The adjustable rural sewage treatment method according to claim 1, wherein the rural sewage is collected to a storage tank for homogenization treatment for 8-60 hours, then enters a biochemical treatment tank for biochemical treatment for 5-15 hours, and emergency treatment facilities are started as required.
3. The method for treating sewage in an adjustable rural area according to claim 1, wherein the emergency treatment facility is used as a clean water tank during normal operation, and the stored water is used as agricultural irrigation, greening and landscape water.
4. The adjustable rural sewage treatment method according to claim 1, characterized in that: the regulation and storage tank is a large regulation and storage tank, the biochemical treatment tank is a small treatment station, the treatment capacity of the small treatment station is 0.7-0.9 times of the design treatment capacity of a conventional treatment station, and the ratio of the volume of the regulation and storage tank to the volume of the biochemical treatment tank is 1.5-8: 1.
5. the adjustable rural sewage treatment method according to claim 1, wherein: when the amount of the incoming water is large and the equipment cannot process the incoming water, the regulation and storage tank is connected, the water is stored in the regulation and storage tank firstly, and then the processing is carried out.
6. The adjustable rural sewage treatment method according to claim 1, wherein: when the water volume of the micro sewage treatment station exceeds the treatment capacity, part of the space in the biochemical treatment tank is used as water storage, and the rest space in the biochemical treatment tank is operated by AO, SBR or MBBR biochemical reaction process.
7. The adjustable rural sewage treatment method according to claim 1, wherein: when the water quantity is too large and cannot be treated, the excessively increased sewage is transferred to a nearby rural water plant or a resource utilization point, and when the water quantity is suddenly reduced, the sewage can be transferred to a micro sewage treatment station from the rural water plant.
8. The adjustable rural sewage treatment method according to claim 1, wherein the treated sewage is not treated to reach the discharge standard and the effluent is returned to the front end of the biochemical treatment tank.
9. The device for the adjustable rural sewage treatment method according to any one of claims 1 to 8, wherein: the biochemical treatment tank is internally provided with a partition board which is used for dividing the biochemical treatment tank into different spaces.
10. The device for the adjustable rural sewage treatment method according to claim 9, wherein: the partition plate is made of stainless steel or cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210533660.0A CN114853171A (en) | 2022-05-17 | 2022-05-17 | Adjustable rural sewage treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210533660.0A CN114853171A (en) | 2022-05-17 | 2022-05-17 | Adjustable rural sewage treatment method |
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| CN114853171A true CN114853171A (en) | 2022-08-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119987A (en) * | 2000-06-30 | 2002-04-23 | Hitachi Chem Co Ltd | Flow rate adjusting tank, anaerobic treatment tank and sewage cleaning tank |
| US20140166582A1 (en) * | 2012-12-13 | 2014-06-19 | Peter Strain | Water treatment system and method |
| CN109052865A (en) * | 2018-09-29 | 2018-12-21 | 中国科学院生态环境研究中心 | A kind of sewage-treatment plant and method |
| CN111943292A (en) * | 2020-07-31 | 2020-11-17 | 北控水务(中国)投资有限公司 | Storage tank coupling high-load sewage treatment method, device and system |
| CN113700110A (en) * | 2021-08-09 | 2021-11-26 | 上海市政工程设计研究总院（集团）有限公司 | Variable-volume multifunctional rainwater regulation and storage system and method |
-
2022
- 2022-05-17 CN CN202210533660.0A patent/CN114853171A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119987A (en) * | 2000-06-30 | 2002-04-23 | Hitachi Chem Co Ltd | Flow rate adjusting tank, anaerobic treatment tank and sewage cleaning tank |
| US20140166582A1 (en) * | 2012-12-13 | 2014-06-19 | Peter Strain | Water treatment system and method |
| CN109052865A (en) * | 2018-09-29 | 2018-12-21 | 中国科学院生态环境研究中心 | A kind of sewage-treatment plant and method |
| CN111943292A (en) * | 2020-07-31 | 2020-11-17 | 北控水务(中国)投资有限公司 | Storage tank coupling high-load sewage treatment method, device and system |
| CN113700110A (en) * | 2021-08-09 | 2021-11-26 | 上海市政工程设计研究总院（集团）有限公司 | Variable-volume multifunctional rainwater regulation and storage system and method |
Non-Patent Citations (3)
| Title |
|---|
| 中国石油天然气总公司编: "《石油地面工程设计手册 第6册 通用工程设计 上》", 31 October 1995, 东营：石油大学出版社, pages: 59 * |
| 北京市城市节约用水办公室编: "《中水工程实例及评析》", vol. 2003, 北京：中国建筑工业出版社, pages: 106 * |
| 董紫君等著: "《城市再生水利用与再生水设施的建设管理》", 30 November 2016, 哈尔滨：哈尔滨工业大学出版社, pages: 147 * |
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Application publication date: 20220805 |