Artificial lake point source pollution retention purification constructed wetland
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A technology of constructed wetlands and point source pollution, applied in the treatment of polluted waterways/lakes/ponds/rivers, chemical instruments and methods, biological water/sewage treatment, etc. Ease of implementation, money-saving effect
Inactive Publication Date: 2020-03-24
XUZHOU UNIV OF TECH
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[0008] In order to overcome the deficiencies of the above-mentioned prior art, the present invention aims at the problem of water quality pollution caused by direct discharge of initial rainwater and sewage from the combined rainwater and sewage outlet into the artificial lake, and intercepts, retains and purifies the rainwater and sewage flowing out of the combined rainwater and sewage outlet , and at the same time carry out different separation processes according to the amount of rainfall
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Embodiment 1
[0034] refer to Figure 1-4 , artificial lake point source pollution retention purification artificial wetland,
[0035] Combined rainwater and sewage pipe 1, used for drainage of rainwater and sewage from the rainwater pipe network and the sewage pipe network;
[0036] The curved storage tank 2 is used to store the rainwater drained by the combined rainwater pipe 1;
[0037] The retention device 3 is used to drain the rainwater and sewage in the arc-shaped storage tank 2, remove impurities, slow down the flow rate of the rainwater and sewage, and control the outflow;
[0038] The subsurface ascending artificial wetland 4 treats the rainwater in the retention device 3 and discharges it into the artificial lake 33 .
[0039] The arc storage tank 2 includes a storage tank 5 for storing rainwater and sewage, a straight wall pipe 6 connected to the storage tank 5 and an artificial lake 33 and equipped with a control valve 7;
[0040] There are marking lines 8 for water storage ...
Embodiment 2
[0049] Concrete applications of the present invention, such as Figure 1-4 As shown, the present invention provides an artificial lake point source pollution stagnation and purification constructed wetland, which includes an arc-shaped storage tank 2, a retention device 3, and a subsurface ascending constructed wetland 4.
[0050] The curved storage tank 2 is composed of a storage tank 5, a straight wall pipe 6, a control valve 7 and a marking line 8.
[0051] The retention device 3 is composed of a coarse grid 9, a cleaning tank 10, a pulling plate I11, a fine grid 12, a pulling plate II13, a flap reducer 14, a water delivery tank 15, a valve well 16, a movable baffle 17, and a water delivery pipe 18 .
[0052] The water storage tank 5 formed by pouring concrete is arc-shaped, and plays the role of regulating and storing rainwater and sewage; , the control valve 7 is closed; when the water level exceeds the marking line 8, the control valve 7 is opened, and the later rainwa...
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Abstract
The invention relates to an artificial lake point source pollution retention purification constructed wetland, which comprises an arc-shaped regulation storage pond, a retention device and a subsurface flow ascending type constructed wetland. When the rainfall is small, initial rainwater and sewage are regulated and stored by a reservoir, sundries are intercepted by a coarse grid and a fine grid,the water flow retention time is increased by the retention device, and then the rainwater and sewage flow into the subsurface flow ascending type constructed wetland with purification function. Whenrainfall is large, initial rainwater and sewage are treated by the arc-shaped regulation storage pond, the retention device and the subsurface flow ascending type constructed wetland in order and arethen discharged into lake. When the water surface in the regulation storage pond submerges a marking line, a control valve is opened, and clean later rainwater is directly discharged into lake througha straight wall pipe. The artificial lake point source pollution retention purification constructed wetland provided by the invention can perform different separation treatment on according to the amount of rainfall, initial rainwater and sewage can be effectively intercepted and purified, the constructed wetland has the advantages of simple process, and low construction and maintenance cost, andcan be widely applied to the field of water pollution control.
Description
technical field [0001] The invention belongs to the field of water pollution control, and in particular relates to an artificial lake point source pollution retention purification artificial wetland. [0002] technical background [0003] Due to the complexity of the urban drainage pipe network, it is very difficult to completely separate all the rainwater pipe network from the sewage pipe network. Therefore, most of the urban drainage systems in my country currently retain the combined drainage system. The combined drainage system is not only responsible for the transportation and discharge of urban domestic sewage, but also a discharge channel for rainfall runoff, that is, a dual channel for urban point source and non-point source pollution. After the rainfall occurs, the flow in the combined pipeline will increase with the increase of rainfall. When the pipeline flow exceeds the conveying capacity of the intercepting main pipe, the excess rain and sewage mixed with sewage ...
Claims
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Application Information
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