CN111018116A - MABR (moving biofilm reactor) primary rain purification process - Google Patents
MABR (moving biofilm reactor) primary rain purification process Download PDFInfo
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- CN111018116A CN111018116A CN202010036857.4A CN202010036857A CN111018116A CN 111018116 A CN111018116 A CN 111018116A CN 202010036857 A CN202010036857 A CN 202010036857A CN 111018116 A CN111018116 A CN 111018116A
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- mabr
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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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
- 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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- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to an MABR (moving average biofilm reactor) primary rain purification process, which relates to the technical field of water treatment and aims to improve the original natural pond, river channel, lake or partial water body thereof, also can be an artificial structure, utilize the original urban rainwater pipeline to collect primary rain, add an MABR purification technology, arrange an MABR membrane component and an air blast system in an MABR purification treatment system, purify pollutants in the water body by using the MABR, and replace the treated water body out of the system when the next primary rain comes in to enter a receiving water body. The invention has the advantages of flexible layout, low investment cost, high degradation load efficiency of the MABR purification treatment system, simple operation and convenient maintenance, effectively treats the primary rain by combining the existing resources, has short hydraulic retention time, purifies the primary rain and then discharges the purified primary rain into the receiving water body in the effective time, and greatly lightens the load of the receiving water body.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and relates to an MABR (moving biofilm reactor) primary rain purification process. MABR, English name Enhanced Hybrid Biofilm Reactor, also known as Enhanced coupled Biofilm Reactor (EHBR).
Background
Urban rainwater runoff is one of main causes of the environment deterioration of the receiving water body, the urban rainwater runoff carries a plurality of types and large amount of pollutants, the water quality of the receiving water body is seriously influenced, and the first scouring pollution of the storm runoff is the key point of water environment management. The initial rain generally refers to the rainfall of surface runoff formed by 10-15mm of the ground, a large amount of acid gas, automobile tail gas, factory waste gas and other polluting gases in the air are dissolved in the initial rain, and after the initial rain falls to the ground, the early rain contains a large amount of pollutants due to scouring of roofs, asphalt concrete roads and the like, so that the pollution degree of the early rain is higher and even exceeds that of common urban sewage. The initial rain is directly discharged into the river channel through the rain pipe, and the water supply environment is polluted to a certain degree.
Present rainwater regulation pond does not generally set up the processing facility or just simple filtration, and most pollutants directly discharge into city drainage system or river course untreated, cause secondary pollution to the water, adopt initial stage rainwater regulation pond to need build separately alone separately, occupy the soil, and the incremental cost restricts collection and the clean system of just rain, can not make an overall effort to utilize current resource, the effect of full play river lake pool self.
Disclosure of Invention
Aiming at the problems, the invention improves the existing river/lake pit without additionally arranging a building, and introduces the MABR technology into the river/lake pit, so that the initial rain reaches the water body purification standard in a short time and is discharged into the river/lake water body.
The invention is realized by the following technical scheme:
an MABR primary rain purification process comprises the following specific process steps:
(1) the system is characterized in that a primary rain collecting system, a sedimentation tank and an MABR purifying treatment system are sequentially communicated, a multistage anaerobic anoxic aerobic biological treatment process system is formed inside the MABR purifying treatment system, a water outlet is formed in the MABR purifying treatment system, and a purified water body is discharged through the water outlet;
(2) the initial rain collecting system collects initial rain by utilizing the original urban rainwater pipeline without additionally arranging an independent initial rain collecting facility;
(3) the sedimentation tank is arranged at the front end of the MABR purification treatment system, the sedimentation tank is designed into multi-stage sedimentation or plug flow type sedimentation, a reinforced sedimentation device system can be additionally arranged for saving space and improving efficiency, the sedimentation tank comprises a rapid and conventional sedimentation device such as coagulation sedimentation, magnetic flocculation and super-magnetic coagulation sedimentation, and the front end of the sedimentation tank is provided with a grid for intercepting or a fine grid for intercepting large-volume suspended matters and floating matters;
(4) the MABR purification treatment system is designed to have a plug flow or flow channel water flow direction, an MABR membrane component and a blower system are arranged in the system, and the MABR is used for purifying pollutants in a water body;
(5) the volume of the MABR purification treatment system is calculated according to the initial rainfall amount, and the hydraulic retention time is 1-5 d;
(6) an automatic control system is arranged in the MABR purification treatment system, a gate is arranged at an initial rain inlet at the front end of the sedimentation tank, and the gate is automatically closed after initial rain is collected;
(7) the water body treated by the MABR purification treatment system is replaced out of the system when the initial rain comes in next time and enters the receiving water body.
The sediment in the sedimentation tank needs to be emptied and cleaned in time.
The MABR primary rain purification system can be a natural pond, a river channel, a lake or a part thereof, and can also be an artificial structure, and the dual effects of environment and landscape can be obtained by combining water purification and ecological landscape construction.
The MABR primary rain purification process is improved on the basis of the original natural pond, river channel, lake or partial water body thereof, can also be an artificial structure, utilizes the original urban rainwater pipeline to collect primary rain, does not add an independent primary rain collecting facility, adds an MABR purification technology, can carry out multi-point design on an MABR purification treatment system according to the characteristics of urban rainy seasons, designs the water flow direction of the MABR purification treatment system to be a plug flow type or a flow channel type, arranges an MABR membrane component and an air blast system in the system, utilizes the MABR to purify pollutants in the water body, and replaces the water body treated by the MABR purification treatment system out of the system when the next primary rain comes in and enters a receiving water body. The invention has the advantages of flexible layout, low investment cost, high degradation load efficiency of the MABR purification treatment system, simple operation and convenient maintenance, effectively treats the primary rain by combining the existing resources, has short hydraulic retention time, purifies the primary rain and then discharges the purified primary rain into the receiving water body in the effective time, and greatly lightens the load of the receiving water body.
Detailed Description
An MABR primary rain purification process of the present invention is further described with reference to the examples.
Example 1: an MABR purification treatment system is arranged in a natural pond of about 2000m2, and the improved design is carried out by adopting a water inlet → a sedimentation tank → the MABR purification treatment system → a water outlet process flow, and the specific process steps are as follows:
the method comprises the steps of calculating and collecting the area of a primary rain pipe network according to the volume of a natural pond and the primary rain catchment area, collecting primary rain through a rain pipe network outside the natural pond, collecting the primary rain to enter the front section of the natural pond, arranging a sedimentation tank on the front section of the natural pond, enabling the sedimentation tank to occupy 1/8-1/6 of the natural pond, setting the rest part of the sedimentation tank to be an MABR purification treatment system, enabling the sedimentation tank to be designed to be plug-flow type sedimentation, enabling a grid to be designed at the front end of the sedimentation tank to intercept or a fine grid to intercept large-volume suspended matters and floating matters, and adding coagulation sedimentation or magnetic flocculation reaction for accelerating sedimentation reaction.
The MABR purification treatment system is provided with an MABR membrane component treatment unit and an air blowing system, the MABR membrane component treatment unit is horizontally arranged according to the depth of a pond, the MABR purification treatment system is in a runner type and adopts a five-runner type, runners are separated by barriers, the MABR membrane components are respectively arranged in the runners, the air blowing system adjusts the pressure and flow of gas supplied to the MABR membrane components according to the load of pollutants in each runner, and the composition of a microbial membrane structure on the outer surface of the MABR membrane is adjusted, so that the pollutants in the primary rainwater body are removed; the water treated by the MABR purification treatment system is discharged into a receiving water body along with the entering of the primary rain for the second time when the primary rain for the second time comes.
The MABR purification treatment system receives initial rainfall according to the volume of the natural pond, the hydraulic retention time is set to be 1-5d, and the hydraulic retention time of the MABR purification treatment system in the pond is determined according to the initial rainfall of each rainfall.
An automatic control system is arranged in the MABR purification treatment system, a gate is arranged at the position of a primary rain inlet at the front end of the sedimentation tank, and the gate is automatically closed after primary rain is collected.
The sediment in the sedimentation tank needs to be emptied and cleaned in time.
Example 2: the difference from example 1 is that: MABR purification treatment system sets up partly in the river course water, specifically as follows:
intercepting 600m in a river channel with the width of 20m and the average depth of 2m, setting an MABR primary rain purification process, and setting a sedimentation tank close to the river bank, wherein the volume of the sedimentation tank is about 1/10-1/8 of the MABR purification treatment system; the MABR purification treatment system is arranged on one side of a river channel, the periphery of the MABR purification treatment system is isolated by using a barrier, the upstream direction of river channel water flow is used as an inlet port for receiving the initial rain in a sedimentation tank, a valve is opened at ordinary times and does not interfere with the water flow direction of a water body, the valve is closed after the initial rain enters, and no water body of the river channel enters the MABR purification treatment system; and (4) allowing the primary rainwater subjected to precipitation treatment to enter an MABR purification treatment system for treatment.
The sedimentation tank design is the tertiary sediment, and the precipitation play water of each grade is as the intaking of next one-level, sets up coagulating sedimentation or magnetic flocculation or super magnetic coagulating sedimentation in the one-level sedimentation tank and deposits with higher speed, and the sedimentation tank front end design grid interception or thin graticule net intercept bulky suspended solid and floater.
The MABR purification treatment system is set into a plug flow type according to the water flow direction; when the MABR purification treatment system does not receive the initial rain, the system enters into the river water body, and the purification treatment effect is realized on the river water body.
The two embodiments can build an ecological landscape structure in a natural pond or a river channel, and realize the combination of water purification and the ecological landscape structure to obtain dual effects of environment and landscape.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (3)
1. An MABR primary rain purification process is characterized in that: the specific process steps are as follows:
(1) the system is characterized in that a primary rain collecting system, a sedimentation tank and an MABR purifying treatment system are sequentially communicated, a multistage anaerobic anoxic aerobic biological treatment process system is formed inside the MABR purifying treatment system, a water outlet is formed in the MABR purifying treatment system, and a purified water body is discharged through the water outlet;
(2) the initial rain collecting system collects initial rain by utilizing the original urban rainwater pipeline without additionally arranging an independent initial rain collecting facility;
(3) the sedimentation tank is arranged at the front end of the MABR purification treatment system, the sedimentation tank is designed into multi-stage sedimentation or plug flow type sedimentation, a reinforced sedimentation device system can be additionally arranged for saving space and improving efficiency, the sedimentation tank comprises a rapid and conventional sedimentation device such as coagulation sedimentation, magnetic flocculation and super-magnetic coagulation sedimentation, and the front end of the sedimentation tank is provided with a grid for intercepting or a fine grid for intercepting large-volume suspended matters and floating matters;
(4) the MABR purification treatment system is designed to have a plug flow or flow channel water flow direction, an MABR membrane component and a blower system are arranged in the system, and the MABR is used for purifying pollutants in a water body;
(5) the volume of the MABR purification treatment system is calculated according to the initial rainfall amount, and the hydraulic retention time is 1-5 d;
(6) an automatic control system is arranged in the MABR purification treatment system, a gate is arranged at an initial rain inlet at the front end of the sedimentation tank, and the gate is automatically closed after initial rain is collected;
(7) the water body treated by the MABR purification treatment system is replaced out of the system when the initial rain comes in next time and enters the receiving water body.
2. The MABR primary rain purification process of claim 1, wherein: the sediment in the sedimentation tank needs to be emptied and cleaned in time.
3. The MABR primary rain purification process of claim 1, wherein: the MABR primary rain purification system can be a natural pond, a river channel, a lake or a part thereof, and can also be an artificial structure, and the dual effects of environment and landscape can be obtained by combining water purification and ecological landscape construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010036857.4A CN111018116A (en) | 2020-01-14 | 2020-01-14 | MABR (moving biofilm reactor) primary rain purification process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010036857.4A CN111018116A (en) | 2020-01-14 | 2020-01-14 | MABR (moving biofilm reactor) primary rain purification process |
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| CN111018116A true CN111018116A (en) | 2020-04-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045585A (en) * | 2007-04-04 | 2007-10-03 | 中国环境科学研究院 | Side-setted biological purifying method of river surface pollution |
| KR100960015B1 (en) * | 2009-08-28 | 2010-05-28 | 주식회사 부강테크 | Waste water treatment apparatus for processing early rain effectively and the method thereof |
| CN108002663A (en) * | 2018-01-11 | 2018-05-08 | 江伟民 | Regulate and store for city initial rainwater the integrated processing equipment of processing |
| CN108439578A (en) * | 2018-04-25 | 2018-08-24 | 天津海之凰科技有限公司 | A kind of combination curtain reinforcing coupled biological membrane reactor（EHBR）Water bodies of rivers and lakes purified in situ apparatus system and method |
| US20180273408A1 (en) * | 2016-10-03 | 2018-09-27 | Nexom | Wastewater denitrification method utilizing recycling of nitrified treated effluent |
| CN110563142A (en) * | 2019-10-16 | 2019-12-13 | 天津海之凰科技有限公司 | MABR sewage treatment tank, MABR sewage treatment system and using method thereof |
-
2020
- 2020-01-14 CN CN202010036857.4A patent/CN111018116A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045585A (en) * | 2007-04-04 | 2007-10-03 | 中国环境科学研究院 | Side-setted biological purifying method of river surface pollution |
| KR100960015B1 (en) * | 2009-08-28 | 2010-05-28 | 주식회사 부강테크 | Waste water treatment apparatus for processing early rain effectively and the method thereof |
| US20180273408A1 (en) * | 2016-10-03 | 2018-09-27 | Nexom | Wastewater denitrification method utilizing recycling of nitrified treated effluent |
| CN108002663A (en) * | 2018-01-11 | 2018-05-08 | 江伟民 | Regulate and store for city initial rainwater the integrated processing equipment of processing |
| CN108439578A (en) * | 2018-04-25 | 2018-08-24 | 天津海之凰科技有限公司 | A kind of combination curtain reinforcing coupled biological membrane reactor（EHBR）Water bodies of rivers and lakes purified in situ apparatus system and method |
| CN110563142A (en) * | 2019-10-16 | 2019-12-13 | 天津海之凰科技有限公司 | MABR sewage treatment tank, MABR sewage treatment system and using method thereof |
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