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Ecological percolation dam capable of improving water quality of tail water of sewage treatment plant and use method of ecological percolation dam

A technology for sewage treatment plants and infiltration dams, applied in the environmental field, can solve the problems of inability to timely and effectively carry out backwashing, poor device startup timeliness, single substrate, etc. The effect of preventing clogging

Pending Publication Date: 2021-11-02
CCCC SHANGHAI DREDGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional ecological filter dam has a single matrix, simple construction method, poor effect in treating micro-polluted water bodies, and is easy to clog after running for a long time. Backwashing can effectively solve the problem of clogging, but the existing backwashing device needs to be manually activated, and The start-up timeliness of the device is poor, and backwashing cannot be performed in a timely and effective manner

Method used

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  • Ecological percolation dam capable of improving water quality of tail water of sewage treatment plant and use method of ecological percolation dam
  • Ecological percolation dam capable of improving water quality of tail water of sewage treatment plant and use method of ecological percolation dam
  • Ecological percolation dam capable of improving water quality of tail water of sewage treatment plant and use method of ecological percolation dam

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0045] Experimental Example 1 Matrix Screening Test

[0046] Matrix screening test Ecological infiltration dam construction: select zeolite, ceramsite with better denitrification effect and vermiculite and gravel with better phosphorus removal effect as the screening matrix for the test, and carry out zeolite + vermiculite, zeolite + gravel, ceramsite + Four combinations of vermiculite, ceramsite and gravel were laid in the plexiglass device. The matrix carrier was trapezoidal as a whole, with a slope of 20° from front to back. 2.

[0047] Table 1 Experimental example 1 average removal rate

[0048]

[0049] It can be seen from Table 1 that gravel and zeolite ecological infiltration dams have good purification effects on water bodies.

experiment example 2

[0050] Experimental example 2 matrix filling test

[0051] Matrix filling test Ecological infiltration dam construction: Lay zeolite and gravel in equal volumes in the plexiglass device in such a way that zeolite is in front of gravel in back, zeolite and gravel are mixed, and gravel is in front of zeolite in back. The trapezoidal shape, the front and rear slopes are 20°, and the influent water is simulated Grade A water quality. The purification results of each ecological filter dam are shown in Table 2.

[0052] Table 2 Experimental example 2 average removal rate

[0053]

[0054] It can be seen from Table 2 that the layered filling ecological infiltration dam with gravel in front and zeolite in the back has a good purification effect on water body.

experiment example 3

[0057] Table 3 Experimental example 3 average removal rate

[0058]

[0059] It can be seen from Table 3 that the iron-carbon ecological filter dam plays a strengthening role in the removal of various pollutants.

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Abstract

The invention discloses an ecological percolation dam capable of improving the water quality of tail water of a sewage treatment plant. The ecological percolation dam comprises an upstream dam body, a downstream dam body, a filtering area located between the upstream dam body and the downstream dam body and an intelligent console. The filtering area comprises a first metal frame close to the upstream dam body and a second metal frame close to the downstream dam body, wherein the first frame is filled with gravel and an iron-carbon filler, the second frame is filled with zeolite and an iron-carbon filler, the upstream dam body is filled with gravel, the downstream dam body is filled with zeolite, water-permeable brick walls are laid on the surfaces of the upstream dam body and the downstream dam body, and purification plants are planted on the surfaces of the water-permeable brick walls. According to the ecological percolation dam capable of improving the water quality of the tail water of the sewage treatment plant, the iron-carbon filler is added to form a novel ecological filter dam, and backwashing pipes are distributed to prevent blockage, so the water quality of the tail water of the sewage treatment plant can be improved, a matrix is easy to replace, and the service life of the ecological filter dam is prolonged; and the intelligent console is connected with a radar water level gauge, a dissolved oxygen sensor and an air pump sensor and can monitor the water level and the dissolved oxygen in real time so as to achieve intelligent opening and closing of the air pump.

Description

technical field [0001] The invention relates to an ecological infiltration dam which can be used for improving the water quality of tail water of a sewage treatment plant and a method for using it, belonging to the field of environment. Background technique [0002] With the process of urbanization and the accelerated development of industry in our country, environmental protection issues, especially urban sewage treatment, have become a research hotspot in various countries. However, as a large amount of domestic and industrial sewage flows into rivers, lakes or groundwater, it causes serious pollution to water bodies and affects fishery water and domestic water. Urban sewage pollution has become one of the important factors restricting the development of the country, so the country's discharge standards for sewage treatment plants are becoming more and more stringent. In response to the national call for energy conservation and emission reduction, more and more urban sewa...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34C02F3/02C02F3/00C02F9/14E03F5/22C02F101/10C02F101/16C02F101/30
CPCC02F3/32C02F3/34C02F3/02C02F3/005C02F1/46104C02F1/463C02F1/001E03F5/22C02F2101/30C02F2101/16C02F2101/105C02F2209/22C02F2303/14C02F2303/16Y02W10/10
Inventor 徐少南沈志伟熊壮张建国张晓雷成杰
Owner CCCC SHANGHAI DREDGING