Rapid infiltration system for efficient treatment on initial rainwater

A technology of initial rainwater and infiltration, applied in runoff/rainwater treatment, water/sewage treatment, biological water/sewage treatment, etc.

Inactive Publication Date: 2018-05-29
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively speaking, the artificial infiltration tank in the prior art is more suitable for initial rainwater treatment. Its treatment of pollutants includes filtration, adsorption, biodegradation, etc., and simultaneously reduces SS, organic matter, nitrogen, phosphorus, heavy metals, etc. It is possible, but the height of the packing layer, packing type, material compatibility, etc. are the key factors affecting the treatment effect of various pollutants

Method used

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  • Rapid infiltration system for efficient treatment on initial rainwater
  • Rapid infiltration system for efficient treatment on initial rainwater
  • Rapid infiltration system for efficient treatment on initial rainwater

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Embodiment

[0050] The embodiment carries out experimental research on the initial rainwater treatment in Yixing City. After long-term testing, the initial rainwater quality in Yixing City is shown in Table 1. The embodiment adopts artificial water distribution to simulate the initial rainwater quality index in Yixing City as raw water for processing experiments. The comparison of the effect of the present invention and conventional combined filler percolation treatment is carried out.

[0051] Table 1 Urban initial rainwater quality indicators in Yixing City

[0052]

[0053] The packing layer of the present invention is regarded as group II, which is as follows from top to bottom:

[0054] Upper layer filler: use river sand and limestone combined filler with a volume ratio of 1:2, the particle size of the river sand is 0.7-1.2mm, the particle size of the limestone is 0.88-1.5mm, and the height of the filler layer is 0.6m;

[0055] Middle layer filler: use limestone, zeolite and stee...

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Abstract

The invention discloses a rapid infiltration system for efficient treatment on initial rainwater. The system comprises a pretreatment system and an infiltration system. The pretreatment system comprises a grid pool and a buffer storage tank communicated with the grid pool by a pipe. The infiltration system comprises an infiltration tank. The infiltration is communicated with the buffer storage tank through a pipe. A plurality of filler layers are arranged in the infiltration tank. The system has a simple structure. Through the optimized configuration of the combined filler, the ability of thesystem to remove various pollutants in the initial rainwater is greatly improved, the comprehensive cost is low and the operation and management are convenient.

Description

technical field [0001] The invention belongs to the field of water pollution prevention and control, and in particular relates to a rapid infiltration system for efficient treatment of initial rainwater. Background technique [0002] With the increase of urban construction density and activity intensity, the degree of urban non-point source pollution continues to increase, and non-point source pollutants contain more SS, organic matter, nitrogen, phosphorus, heavy metals, etc. With the occurrence of rainfall events, wet deposition and The erosion of the underlying surface by rainwater will load urban non-point source pollutants into the runoff rainwater. Many reports show that the SS, organic matter, total nitrogen, ammonia nitrogen, total phosphorus, and heavy metals in the initial rainwater are almost close to the indicators of urban sewage. Under the rainwater and sewage diversion system, rainwater and sewage are collected by rainwater and sewage pipe network systems, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/30C02F9/14C02F101/10C02F101/20
CPCC02F1/001C02F1/281C02F1/58C02F3/105C02F3/107C02F3/308C02F9/00C02F2001/007C02F2101/105C02F2101/20C02F2103/001Y02W10/10
Inventor 袁宏林张颖于东升田东昊吴亚东
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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