CN108128967B - River water body ex-situ comprehensive efficient treatment method and system - Google Patents
River water body ex-situ comprehensive efficient treatment method and system Download PDFInfo
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- CN108128967B CN108128967B CN201711218616.6A CN201711218616A CN108128967B CN 108128967 B CN108128967 B CN 108128967B CN 201711218616 A CN201711218616 A CN 201711218616A CN 108128967 B CN108128967 B CN 108128967B
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
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- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a comprehensive high-efficiency treatment method and a comprehensive high-efficiency treatment system for river channel water bodies at different positions, wherein the method comprises the steps of pumping the water bodies to be treated in a river channel to a super-magnetic separation treatment device, removing most organic pollutants, total phosphorus, suspended matters and colloids in the water bodies, and improving the transparency of the water bodies; the effluent treated by the supermagnetic separation treatment equipment is sent into a biological contact oxidation pond, and the water body is subjected to the action of microorganisms to eliminate most of ammonia nitrogen and part of organic pollutants in the water body and increase the concentration of dissolved oxygen in the water body; sending the effluent treated by the biological contact oxidation pond into a submerged plant pond, deeply purifying the water body by the submerged plant to remove the residual total nitrogen and total phosphorus in the water body, and discharging the effluent to a river channel after reaching the standard; the invention is organic integration of high-efficiency technology of sewage treatment, breaks through the problem that ammonia nitrogen and total nitrogen do not reach the standard in the current river water treatment, and the water quality index of the effluent water treated by the method and the system can reach the standard of surface class IV water.
Description
Technical Field
The invention relates to the field of river water body treatment, in particular to a comprehensive high-efficiency treatment method and a comprehensive high-efficiency treatment system for river water bodies at different positions.
Background
Landscape water bodies such as rivers and the like are important components in urban human environment, but due to the characteristics of easy pollution, small water environment capacity, poor water body self-purification capacity and the like, the landscape water bodies can easily become acceptors of domestic sewage, rainwater and garbage of residents, so that a large amount of dissolved oxygen in the water body is consumed, the water body is in a black and odorous state due to oxygen deficiency, the whole ecological system is collapsed, and meanwhile, pollutants are difficult to degrade and are deposited in bottom mud to form serious endogenous pollution. The phenomena of black and odorous rivers and substandard water quality in cities become pollution problems commonly existing in many cities in China, and the life, the image and the ecological environment of residents are seriously influenced.
The conventional river water body treatment method in the current market mainly comprises the technologies of sewage interception and collection pipe, dredging, aeration and oxygenation, biofilm filling, submerged plant restoration, ecological floating island, microorganism regulation, ectopic reinforcement treatment and the likeHowever, due to the reasons that the change fluctuation of water quality and water quantity of part of riverways is large, the sewage interception and storage pipe is not thorough, the release of endogenous pollution and the like, related treatment measures cannot be stably operated, the ideal effect is difficult to achieve, part of riverway treatment technologies are single, and the water body cannot eliminate black and odorous water or reach surface V-type water. Relatively speaking, the ectopic reinforced treatment measures are relatively stable in operation, such as integrated equipment of ultra-magnetic separation, efficient microfiltration, MBR and the like, can effectively remove partial pollutants in the water body under normal conditions, but ammonia Nitrogen (NH) in the water body3And pollutants such as-N) and Total Nitrogen (TN) are difficult to reach the standard of surface V-type water, which is also a key problem encountered when the water quality of the river channel treatment reaches the standard at present.
Disclosure of Invention
The invention aims to provide a river channel water body ex-situ comprehensive high-efficiency treatment method and system to break through the problem that ammonia nitrogen and total nitrogen of the water quality for river channel treatment do not reach the standard at present.
In order to achieve the purpose, the invention adopts the following technical scheme:
a comprehensive high-efficiency treatment method for river water ectopy comprises the following steps:
1) pumping the water to be treated in the river channel to a super-magnetic separation treatment device, removing most organic pollutants, total phosphorus, suspended matters and colloid in the water, and improving the transparency of the water;
2) the effluent treated by the supermagnetic separation treatment equipment is sent into a biological contact oxidation pond, and the water body is subjected to the action of microorganisms to eliminate most of ammonia nitrogen and part of organic pollutants in the water body and increase the concentration of dissolved oxygen in the water body;
3) and (3) delivering the effluent treated by the biological contact oxidation pond into a submerged plant pond, deeply purifying the water body by using submerged plants to remove residual total nitrogen and total phosphorus in the water body, and discharging the effluent to a river channel after reaching the standard.
The invention also provides a river channel water body ex-situ comprehensive high-efficiency treatment system which comprises a lifting pump arranged in the river channel water body, wherein the lifting pump is connected with an inlet of the ultra-magnetic separation treatment equipment through a flow meter and a control valve, an outlet of the ultra-magnetic separation treatment equipment is connected with an inlet of a biological contact oxidation tank, the biological contact oxidation tank comprises a tank body, the tank body is divided into an aeration contact oxidation zone and a sedimentation zone along the water flow direction, a filler attached with microorganisms is suspended in the aeration contact oxidation zone, an aeration disc is arranged at the bottom of the tank below the filler, and the aeration disc is connected with an air blower; a sludge pump for pumping out the sediments is arranged at the bottom of the tail end of the tank body in the sedimentation zone; an outlet of the biological contact oxidation pond is connected with an inlet of the submerged plant pond, the submerged plant pond is divided into a plurality of sections along the water flow direction, each section is separated by a water body flow guide barrier, water passing openings are formed in the water body flow guide barrier, and any two adjacent water passing openings are arranged in a staggered mode; the submerged plants planted in each interval in the submerged plant pond along the water flow direction are hydrilla verticillata, watermifoil and eel grass respectively, and the planting area ratio of the hydrilla verticillata, the watermifoil and the eel grass is 1:1: 2; and the outlet of the submerged plant pond is connected with the river water body through a pipeline.
Furthermore, the tank body is of a rectangular structure, the hydraulic retention time is 4-6h, and the volume ratio of the aeration contact oxidation zone to the sedimentation zone is 3: 2.
Furthermore, the filler is formed by combining soft filler and elastic filler.
Further, the water diversion barrier is a PVC (polyvinyl chloride) enclosure, the depth of the submerged plant pond is 1-2m, and the hydraulic retention time is 5-8 h.
Further, the blower is a roots blower, and the aeration disc is a microporous aeration disc.
The invention has the beneficial effects that: the method and the system provided by the invention are organic integration of high-efficiency sewage treatment technology, the polluted water body to be treated is lifted from a river channel to be treated by super-magnetic separation treatment, the water body enters a biological contact oxidation pond after coagulation and magnetic separation treatment, is subjected to aeration and microbial treatment, then enters a submerged plant pond to be subjected to ecological comprehensive purification, and is discharged after the treatment reaches the standard, so that the problem that ammonia nitrogen and total nitrogen in the river channel water body treatment do not reach the standard is solved, and the water quality index of the effluent treated by the method and the system provided by the invention can reach the surface class IV water standard.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a schematic plan view of the flow of water through a submerged plant pond;
wherein: 1-upstream riverway, 2-lift pump, 3-flow meter and control valve, 4-super magnetic separation treatment equipment, 5-Roots blower, 6-filler, 7-microporous aeration disc, 8-sludge pump, 9-biological contact oxidation pond, 9 a-aeration contact oxidation zone, 9 b-settling zone, 10-hydrilla verticillata, 11-Foliu-tailed algae, 12-bitter grass, 13-water diversion barrier, 14-submerged plant pond, 15-downstream riverway and 16-water passing port.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1, the ex-situ comprehensive efficient treatment system for the river water body comprises a lift pump 2 arranged in the water body of an upstream river 1, wherein the lift pump 2 is connected with an inlet of a super-magnetic separation treatment device 4 through a flow meter and a control valve 3, and an outlet of the super-magnetic separation treatment device 4 is connected with an inlet of a biological contact oxidation pond 9.
The biological contact oxidation tank 9 comprises a tank body with a rectangular structure, the hydraulic retention time in the tank body is 4-6h, the tank body is divided into an aeration contact oxidation area 9a and a sedimentation area 9b according to the water flow direction, and the volume ratio of the aeration contact oxidation area to the sedimentation area is 3: 2. And a filler 6 attached with microorganisms is suspended in the aeration contact oxidation zone 9a, and the filler 6 is formed by combining a soft filler and an elastic filler.
A micropore aeration disc 7 is arranged at the bottom of the tank below the filler 6, the micropore aeration disc 7 is connected with a Roots blower 5, and the gas-water ratio is 3: 1; and a sludge pump 8 for pumping out the sediments is arranged at the bottom of the tail end of the tank body in the sedimentation zone 9 b.
The outlet of the biological contact oxidation pond 9 is connected with the inlet of the submerged plant pond 14, as shown in fig. 2, the interior of the submerged plant pond 9 is divided into eight sections along the water flow direction, each section is separated by a water diversion barrier 13, the hydraulic retention time of the submerged plant pond 14 is 5-8h, the water depth is designed to be 1-2m, and sufficient sunlight and growth space of submerged plants are ensured. And the PVC enclosure is used as a water body flow guide barrier 13, so that the water body overflowing time is prolonged, and the phenomena of short flow and dead angles are avoided.
The water diversion barrier 13 is provided with water passing ports 16, and any two adjacent water passing ports 16 are arranged in a staggered manner, so that water flows pass through each interval in a baffling manner as shown by arrows in fig. 2. Submerged plants are planted in each interval, the submerged plants which are sequentially planted in each interval along the water flow direction are hydrilla verticillata 10, watermifoil 11 and tape grass 12 respectively, and the planting area ratio of the hydrilla verticillata to the watermifoil is 1:1: 2. The selection and planting area proportion of the submerged plants are the optimal community proportion of the submerged plant pond 14, the pollution-resistant hydrilla verticillata and watermifoil are arranged at the water inlet end to resist the impact of water power and pollutant load, and the clear water type eel grass is arranged in the middle and rear areas to deeply purify pollutants such as nitrogen, phosphorus and the like. The outlet of the submerged plant pond 14 is connected with the water body of the downstream river channel 15 through a pipeline.
The comprehensive high-efficiency treatment method for the river water ectopic position comprises the following steps:
the water body of the upstream riverway 1 to be treated is lifted to the onshore ultra-magnetic separation treatment equipment 4 by the lifting pump 2, the flow is controlled by the flowmeter and the valve 3 in the period, after the water body is treated by the ultra-magnetic separation treatment equipment 4, the concentration of a large amount of pollutants such as COD, total phosphorus and SS in the water body is greatly reduced, and the transparency of the water body is greatly improved. The effluent of the ultra-magnetic separation treatment equipment 4 enters a biological contact oxidation tank 9, biological fillers 6 are distributed in the tank body and can provide carriers attached by functional microorganisms, air blast aeration discs 7 are distributed below the carriers and provide dissolved oxygen by an external air blower 5, an aeration filler area accounts for 3/5 areas of the biological contact oxidation tank, sediments in the tank are deposited at the bottom of the tail end tank along with water flow and are pumped out by a sludge pump 8, and a water body is adsorbed and degraded by the functional microorganisms in the biological contact oxidation tank 9 to remove a large amount of ammonia nitrogen pollutants; the effluent enters a submerged plant pond 14, the submerged plant pond 14 passes through water in a baffling mode, water passes through hydrilla verticillata 10, watermifoil 11 and eel grass 12 respectively from the water inlet end of the submerged plant pond 14, pollutants such as nitrogen and phosphorus are removed through deep purification, finally the water quality reaches surface class IV water, and the water is discharged to a downstream river channel 15 from the submerged plant pond 14 to provide a clear water source for a river water body.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (1)
1. A comprehensive high-efficiency treatment method for river water ectopy is characterized by comprising the following steps:
1) pumping the water to be treated in the river channel to a super-magnetic separation treatment device, removing most organic pollutants, total phosphorus, suspended matters and colloid in the water, and improving the transparency of the water;
2) the effluent treated by the supermagnetic separation treatment equipment is sent into a biological contact oxidation pond, and the water body is subjected to the action of microorganisms to eliminate most of ammonia nitrogen and part of organic pollutants in the water body and increase the concentration of dissolved oxygen in the water body;
3) sending the effluent treated by the biological contact oxidation pond into a submerged plant pond, deeply purifying the water body by the submerged plant to remove the residual total nitrogen and total phosphorus in the water body, and discharging the effluent to a river channel after reaching the standard; the method is realized by a river water ex-situ comprehensive efficient treatment system, the river water ex-situ comprehensive efficient treatment system comprises a lift pump arranged in the river water, the lift pump is connected with an inlet of a super-magnetic separation treatment device through a flow meter and a control valve, an outlet of the super-magnetic separation treatment device is connected with an inlet of a biological contact oxidation pond, the biological contact oxidation pond comprises a pond body, the pond body is divided into an aeration contact oxidation zone and a sedimentation zone according to the water flow direction, a filler attached with microorganisms is suspended in the aeration contact oxidation zone, an aeration disc is arranged at the bottom of the pond below the filler, and the aeration disc is connected with an air blower; a sludge pump for pumping out the sediments is arranged at the bottom of the tail end of the tank body in the sedimentation zone; an outlet of the biological contact oxidation pond is connected with an inlet of the submerged plant pond, the submerged plant pond is divided into a plurality of sections along the water flow direction, each section is separated by a water body flow guide barrier, water passing openings are formed in the water body flow guide barrier, and any two adjacent water passing openings are arranged in a staggered mode; the submerged plants planted in each interval in the submerged plant pond along the water flow direction are hydrilla verticillata, watermifoil and eel grass respectively, and the planting area ratio of the hydrilla verticillata, the watermifoil and the eel grass is 1:1: 2; the outlet of the submerged plant pond is connected with the river water body through a pipeline; the tank body is of a rectangular structure, the hydraulic retention time is 4-6h, and the volume ratio of the aeration contact oxidation zone to the sedimentation zone is 3: 2; the filler is formed by combining a soft filler and an elastic filler; the water diversion barrier is a PVC (polyvinyl chloride) enclosure, the depth of water in the submerged plant pond is 1-2m, and the hydraulic retention time is 5-8 h; the blower is a Roots blower, and the aeration disc is a microporous aeration disc.
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| CN201711218616.6A CN108128967B (en) | 2017-11-28 | 2017-11-28 | River water body ex-situ comprehensive efficient treatment method and system |
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| CN108609816A (en) * | 2018-07-19 | 2018-10-02 | 安徽华骐环保科技股份有限公司 | A kind of river sewage total system and its processing method |
| CN109205807A (en) * | 2018-09-10 | 2019-01-15 | 安徽国祯环保节能科技股份有限公司 | A kind of the water quality method for improving and system of river black and odorous water |
| CN110565609B (en) * | 2019-09-29 | 2021-02-09 | 江西绿色盾牌环境工程有限公司 | A river course treatment equipment for black and odorous water body |
| CN111056702A (en) * | 2019-12-11 | 2020-04-24 | 安徽百和环保科技有限公司 | A water clean system for river course tributary mouth |
| CN111977895A (en) * | 2020-08-06 | 2020-11-24 | 中交（天津）生态环保设计研究院有限公司 | Ectopic treatment method and treatment system for surface water body |
| CN113087301B (en) * | 2021-04-08 | 2021-12-07 | 常州康绿环保科技有限公司 | Ectopic microorganism remediation method for river sewage |
| CN115504631B (en) * | 2022-10-13 | 2024-02-20 | 海南墣锦环境科技股份有限公司 | Cleaning method and application of invasive plant |
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| CN100371269C (en) * | 2006-06-30 | 2008-02-27 | 南京大学 | Method and installation for treating domestic sewage by using artificial wetland |
| CN201313853Y (en) * | 2008-11-10 | 2009-09-23 | 重庆大学 | Biofilm reaction equipment for wastewater treatment |
| CN103951067B (en) * | 2014-04-23 | 2015-06-03 | 广东中大环保科技投资有限公司 | System and method for treating rural sewage by using ecological system based on multi-submerged plant combinations |
| CN205347098U (en) * | 2015-12-01 | 2016-06-29 | 广东鑫都环保实业有限公司 | Black smelly water treatment system |
| CN106348528A (en) * | 2016-09-19 | 2017-01-25 | 深圳市楠柏环境科技有限公司 | Sewage treatment system combining magnetic loading precipitation and biological aerated filter tank |
| CN106396264A (en) * | 2016-10-13 | 2017-02-15 | 华中科技大学 | Artificial wetland sewage treatment system capable of preventing blockage |
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Address after: 230088 No. 91 science Avenue, hi tech Zone, Anhui, Hefei Patentee after: Cecep Guozhen Environmental Protection Technology Co.,Ltd. Address before: 230088 No. 91 science Avenue, hi tech Zone, Anhui, Hefei Patentee before: Anhui Guozhen environmental protection and energy saving Technology Co.,Ltd. |