Effluent pretreatment system for rain and sewage mixed-flow type pump station

A mixed-flow and pretreatment technology, applied in the field of water treatment, can solve problems such as river pollution, achieve obvious technical effects and solve the high pollution load into the river.

Pending Publication Date: 2018-06-26
SHANGHAI TAIHE WATER ENVIRONMENTAL TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a rain-sewage mixed-flow pumping station water pretreatment system. The rain-sewage mixed-flow pumping station water pre-treatment system shou

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  • Effluent pretreatment system for rain and sewage mixed-flow type pump station

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Embodiment 1

[0017] The present invention provides a rain-sewage mixed-flow pump station effluent pretreatment system, comprising an aeration system 1 and a biological film-hanging system 2, and the biological film-hanging system 2 is arranged above the aeration system 1;

[0018] The aeration system 1 includes at least one aeration device, any aeration device includes a main pipe 3 and more than two branch pipes 4, the branch pipe 4 and the main pipe 3 are vertically arranged, any one of the The main pipes 3 are all connected to a blower 5, the main pipe 3 and the branch pipe 4 are provided with more than two aeration holes, and the main pipe 3 is arranged parallel to the shoreline;

[0019] The bio-film-hanging system 2 includes more than two steel pipes 6, the bottom of the steel pipes 6 are fixedly connected to the river bottom, steel wire ropes are arranged between the steel pipes 6, and the steel wire ropes are perpendicular to the shoreline. The steel wire rope is provided with a ha...

Embodiment 2

[0027] The present invention includes "multi-row pipeline aeration system + biological film-hanging" two-part structure:

[0028] 1. Multi-row pipeline aeration system

[0029] A fixed blower room is set up in the water body, and the air is introduced into the incoming water of the Fangjiang pumping station through pipes to achieve the purpose of increasing DO for the water body. The aeration system adopts multiple rows of parallel aeration pipelines (DN50), which are arranged within 50-100 m of the water body downstream of the river pumping station (it can be adjusted according to the actual amount of river discharge). The aeration pipeline system consists of a DN75 main pipe 3 (parallel to the shoreline, connected by a blower) and multiple DN50 branch pipes 4 (perpendicular to the main pipe 3, and a branch pipe 5 is arranged every 2-3m along the direction of the main pipe 3) , the main aeration aperture is 3~5mm. The aeration pipes are fixed by DN25 hot-dip galvanized stee...

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Abstract

The invention provides an effluent pretreatment system for a rain and sewage mixed-flow type pump station. The effluent pretreatment system comprises an aeration system and a biofilm formation system,wherein the biofilm formation system is arranged at the upper part of the aeration system; the aeration system comprises at least one aeration device; any one aeration device comprises a main pipe and two or more branch pipes; the branch pipes are perpendicular to the main pipe; any one main pipe is connected with an air blower; each main pipe and each branch pipe are respectively provided with two or more aeration holes; the separation distance of the aeration holes is 60 to 120 cm; main pipes and bank lines are arranged in parallel; the biofilm formation system is composed of two or more steel pipes; the bottom parts of the steel pipes are fixedly connected with river bottom; a steel wire rope is arranged between the steel pipes; steel wire ropes are perpendicular to the bank lines; a suspension film is arranged on each steel wire rope; the lower end of each suspension film is fixed through a gabion; and floating balls are arranged on suspension films. The effluent pretreatment system provided by the invention solves the technical problems of high pollution inlet load of a river and large lockage flow rate due to outfall of the rain and sewage mixed-flow type pump station.

Description

technical field [0001] The invention relates to water treatment technology, in particular to water ecological restoration technology, in particular to a rain-sewage mixed-flow pumping station outlet water pretreatment system. Background technique [0002] With the continuous advancement of water environment treatment, the point source pollution of rivers and lakes in Chinese cities has been effectively controlled, and the sewage treatment rate has been continuously improved. Then, some rivers are affected by the municipal, rainwater, and rainwater mixed-flow pumping stations along the line, and black and smelly phenomena occur from time to time. In the urban area, pre-evacuation in the form of pumping stations into the river, non-point source pollution in rainy days (initial rainwater, rain and sewage confluence, etc.) and peak flow overflow pollution in dry seasons are serious problems. [0003] According to the connection of the pumping station to the pipe network, the pu...

Claims

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Application Information

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IPC IPC(8): C02F3/12
CPCC02F3/1268C02F2103/001C02F2103/007Y02W10/10
Inventor 徐小娜何文辉张敏陈强
Owner SHANGHAI TAIHE WATER ENVIRONMENTAL TECH DEV CO LTD
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