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Modified loess percolation system for purifying rainwater

A loess modification technology, applied in waterway systems, sewage removal, water supply devices, etc., can solve the problems of unmodified loess, achieve the effects of improving effluent water quality, reducing production costs, and cheap prices

Pending Publication Date: 2018-07-20
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the filter materials used in these studies and applications were not modified loess

Method used

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  • Modified loess percolation system for purifying rainwater
  • Modified loess percolation system for purifying rainwater
  • Modified loess percolation system for purifying rainwater

Examples

Experimental program
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Embodiment Construction

[0032] Such as Figure 1~5 As shown, a modified loess infiltration system for purifying rainwater includes a connected rainwater collection tank and a percolation tank 22 provided with a backwash sump 20 . The percolation pond 22 is connected with a reservoir I12, and the reservoir I12 is successively connected with a reservoir II13 and a reservoir III14 through a reservoir connection pipe 15; the reservoir I12 is provided with a reservoir outlet pipe 16.

[0033] The top of the infiltration tank 22 is provided with a loam cake, and one side of the loam cake is respectively provided with a water inlet pipe 5 and a cable pipe 6, and four beams 7 are symmetrically arranged under the lid; Nozzles, these several water nozzles communicate with the water inlet pipe 5; one side of the bottom of the percolation tank 22 is respectively provided with a backwash water inlet pipe 17, a backwash inlet pipe 18, and the other side is provided with a percolation water outlet connecting pipe 9...

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Abstract

The invention relates to a modified loess percolation system for purifying rainwater. The system comprises a rainwater collection pool and a percolation pool which are connected together. The percolation pool is connected to a reservoir I, and the reservoir I is connected to reservoirs II and III; an upper cover is arranged at the top of the percolation pool; a water intake pipe and a cable pipe are arranged at one side of the upper cover in a separated mode, and a cross beam is arranged under the cover; water spraying nozzles are hung on the cross beam; a back-flushing water intake pipe and aback-flushing air intake pipe are arranged at one side of the bottom of the percolation pool in a separated mode, and a percolation discharged water connecting pipe is arranged at the other; filter head sleeves are uniformly distributed at the upper side of the percolation pool; the percolation discharged water connecting pipe is connected to a water discharge pool, and the water discharge pool is connected to the reservoir I; the inside of the percolation pool is composed of a loess filter material layer, a quartz sand filter layer, a gravel bearing layer and a filter plate from top to bottom; back-flushing water outlets are uniformly distributed in the quartz sand filter layer; a back-flushing water collection tank and the percolation pool are connected to a back-flushing water discharge pool; the back-flushing water discharge pool is connected to a back-flushing reservoir; and the back-flushing reservoir is connected to the rainwater collection pool via a back-flushing water discharge pipe. The modified loess percolation system provided by the invention is low in cost and good in treatment cost.

Description

technical field [0001] The invention relates to the technical field of rainwater and sewage treatment, in particular to a modified loess infiltration system for purifying rainwater. Background technique [0002] The essence of sponge city is to change the traditional concept of urban construction and realize the coordinated development with resources and environment. When the "successful" industrial civilization reached its peak, people were accustomed to the urban construction model of overcoming nature, surpassing nature, and transforming nature, resulting in serious urban diseases and ecological crises; while sponge cities follow the principle of conforming to nature and living in harmony with nature low-impact development model. After the traditional city is built, the surface runoff will increase significantly, and the surface runoff will remain unchanged after the sponge city is built. Therefore, the construction of sponge city is under the background of urbanization...

Claims

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Application Information

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IPC IPC(8): E03F1/00E03F5/04E03F5/10E03F5/14E03F5/22
CPCE03F1/00E03F5/0404E03F5/10E03F5/14E03F5/22
Inventor 李慧莉厚建伟李庚桐张榆敏刘鹏程裴媛玫郑效旭
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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