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A method for cleaning and diverting sewage from sewage intercepting box culverts in urban rivers

A technology of box culvert and dirty tank, which is applied in the field of urban river sewage interception box culvert cleaning and diversion system, which can solve the problems of low tributary flow in dry season, aggravating river water pollution, and lack of rainwater in rivers, etc.

Active Publication Date: 2020-02-18
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages are: the large sewage intercepting box culvert is generally a confluence of rain and sewage, and the tributaries have less flow in the dry season. The sewage intercepting box culvert transports all the rainwater and sewage to the sewage treatment plant. On the one hand, it increases the cost of sewage treatment, and on the other hand, the river lacks rainwater in the dry season. And the ecological base flow is not satisfied
When there is heavy rain in the rainy season, the combined water that exceeds the interception multiple is still discharged into the river, and the pollutants deposited in the sewage interception box culvert overflow into the river, which aggravates the pollution of the river water

Method used

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  • A method for cleaning and diverting sewage from sewage intercepting box culverts in urban rivers
  • A method for cleaning and diverting sewage from sewage intercepting box culverts in urban rivers
  • A method for cleaning and diverting sewage from sewage intercepting box culverts in urban rivers

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Experimental program
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Effect test

Embodiment 1

[0041] This embodiment is a kind of urban river sewage intercepting box culvert cleaning and diversion system, such as figure 1shown. This embodiment includes: a sewage intercepting box culvert gate 3 located at the end of the tributary 1 and connected to the sewage intercepting box culvert 2, and a river inlet branch 5 connecting the tributary and the main stream 4 is arranged upstream of the tributary end of the sewage intercepting box culvert gate. A box culvert water level gauge and a box culvert flowmeter 6 are set upstream of the sewage intercepting box culvert gate of the sewage intercepting box culvert gate, and a river inlet gate 7 and a tributary outlet water level gauge 8 are set at the entrance of the river branch. Dissolved oxygen meter 9 is set on the upstream of the river inlet gate, and the upstream of the dissolved oxygen meter is provided with a regulation and storage branch 11 connected to the regulation and storage tank 10. A tributary inflow water level ...

Embodiment 2

[0056] This embodiment is an improvement of the first embodiment, and is a refinement of the first embodiment on each gate. The sewage intercepting box culvert gate, the river inlet gate, and the storage tank gate described in this embodiment are respectively provided with an opening sensor for the sewage intercepting box culvert gate, an opening sensor for the river inlet gate, and a gate opening sensor for the storage tank.

[0057] The role of setting the opening sensor is to facilitate the adjustment of the opening of each gate, especially after combining each sensor with a water level gauge and a flow meter, and using an electronic control device, the overall automatic control can be realized.

Embodiment 3

[0059] This embodiment is a method for diverting sewage in urban rivers by using the above-mentioned system.

[0060] The basic working mode of this embodiment is as follows:

[0061] (1) After the wastewater or pollutants enter the tributary, the self-purification process begins. In the initial stage of the self-purification process, the amount of dissolved oxygen in the water drops sharply, then rises slowly after reaching the lowest point, and gradually returns to the normal level. If the amount of pollutants discharged into the water body exceeds a certain limit, it will cause permanent pollution of the water body.

[0062] (2) Three gates are respectively set up on the channel where the tributaries enter the sewage interception box culvert, the tributary enters the main stream channel, and the tributary enters the storage tank, and selectively adjusts the tributary to enter the main stream. and the opening of the sewage intercepting box culvert gate, control the flow fr...

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PUM

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Abstract

The invention relates to an urban river sewage interception box culvert sewage disposal and diversion system and method. The system comprises a sewage interception box culvert gate, the upstream of the branch flow end of the sewage interception box culvert is provided with a riverway for connecting a branch flow and a main stream; a box culvert water level meter and a box culvert flow meter are arranged on the upstream of the sewage interception box culvert end of the sewage interception box culvert gate, a dissolved oxygen meter is arranged on the upstream of a river inlet gate of the branchflow, a regulation and storage fork connected with a regulation and storage pool is arranged on the upstream of the dissolved oxygen meter, and a branch flow water level meter and a branch flow meterare arranged on the upstream of the regulation and storage pool gate of the branch flow. A regulation and storage water level meter is arranged in the regulation and storage fork. The water body pollution condition is judged by detecting the dissolved oxygen concentration of the water body, and whether the sewage interception box culvert overflows or not is judged by measuring the depth and the flow of the water body. The opening degrees of gates of the branch inflow trunk stream, the sewage interception box culvert and the regulation and storage pool are selectively adjusted, and the flows from the branch flow to the trunk stream riverway, the sewage interception box culvert and the regulation and storage tank are controlled, so that clean water is ensured to enter the trunk stream riverway, overflow of the sewage interception box culvert is prevented, and overload operation of sewage treatment is prevented.

Description

technical field [0001] The invention relates to a pollution-cleaning and diverting system and method of an urban river sewage intercepting box culvert, which is an environmental protection system and method, and a system and method for urban cleaning and urban water environment protection. Background technique [0002] Due to the intensification of human activities, the water environment is becoming increasingly severe, and the pollution of urban rivers is particularly prominent. The urban black and odorous water not only brings extremely poor sensory experience to the masses, but also is a prominent water environment problem that directly affects the production and life of the masses. The improvement of urban black and odorous water It has become an important part of the work of local people's governments at all levels to improve the urban living environment. However, due to the complex causes of black and odorous urban water bodies and many influencing factors, the task of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B1/00E03F1/00E03F5/10
Inventor 白音包力皋穆祥鹏周祖昊陈永裕王秀英许凤冉刘慧
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES