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River way lateral seepage wall composition and construction method thereof

A technology for lateral seepage walls and river channels, which is applied in river remediation, sustainable biological treatment, aerobic process treatment, etc., can solve the problem of aerobic microorganisms with poor re-oxygenation conditions, does not belong to the underground infiltration method, and affects the treatment effect of the system, etc. problems, to achieve the effect of less demanding construction requirements, simple construction and investment saving

Active Publication Date: 2014-06-04
NANJING UNIV ECOLOGICAL RES INST OF CHANGSHU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It should be said that the underground infiltration method (also called soil infiltration method, the same below) has advantages such as good nitrogen and phosphorus removal effect, small footprint, good landscape effect, low construction and operation costs, but at the same time, the soil is easy to clog , Poor reoxygenation conditions lead to poor aerobic microbial activity in the system and affect the technical barriers to the system's treatment effect
[0007] China Invention Patent Authorization Announcement No. CN101434420B recommends "a river channel permeable reactive wall system and its application". The top of the embankment, and need to rely on the pump station to introduce the non-point source polluted water into the water inlet, and then pass through the mesh grid, stone cushion, intermediate cushion layer, stone cushion and water outlet in sequence, and then enter the river (for details, refer to the patent paragraphs 33 to 34 of the specification), so the patented solution does not belong to the category of subsurface infiltration, and has no reference significance for solving the above technical obstacles

Method used

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  • River way lateral seepage wall composition and construction method thereof
  • River way lateral seepage wall composition and construction method thereof
  • River way lateral seepage wall composition and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] See Figure 1 to Figure 5 , constructed by Figure 1 to Figure 4 The shown lateral seepage wall structure includes the following steps:

[0033] A) Excavate side seepage trenches to figure 1 The state shown is an example, on one side of the river bed 21 of the river channel 2, that is, on the left side, a road extending toward the length direction of the river bank 22 is excavated, and at the same time, it is extended toward the depth of the bank surface of the river bank 22 and is in line with the river bank 22. The side seepage ditch 221 parallel to the riverbed 21, the excavation (i.e. earthwork) produced when excavating the side seepage ditch 221 is utilized on the spot to construct the infiltration island in the river. The extent of extension constitutes the length of the side seepage ditch 221, and the length of the side seepage ditch 221 of the present embodiment is 60m; The height of the side seepage ditch 221, and the height of the side seepage ditch gradually...

Embodiment 2

[0044] Only change the length of the side seepage ditch 221 in step A) to 100m, the height of the side seepage ditch 221 gradually increases from 5m at the border of the river bed 21 of the river channel 12 to 6m in the direction away from the river bed 21, and the width of the side seepage ditch 221 Change it to 5m; only change the length of the lateral seepage wall 1 of the lateral seepage wall in step B) to 100m, and the height of the lateral seepage wall of the lateral seepage wall 1 is from the border of the river bed 21 of the river channel 2 5m gradually increases to 6m toward the direction away from (away from) the riverbed 21, the width of the side seepage wall body of the side seepage wall body 1 is changed to 5m, the thickness of the gravel layer 11 is changed to 15 cm, and the thickness of the percolation material The ratio of parts by weight is changed to: 80 parts of zeolite and 20 parts of ceramsite, the left side standpipe 31 is 5m, 15m, and 25m away from the st...

Embodiment 3

[0046] Only change the length of the side seepage ditch 221 in step A) to 80m, and the height of the side seepage ditch 221 gradually increases from 4m at the border with the river bed 21 of the river channel 12 to 5m in the direction away from the river bed 21, and the width of the side seepage ditch 221 Change it to 3m; only change the length of the lateral seepage wall 1 of the lateral seepage wall in step B) to 80m, and the height of the lateral seepage wall of the lateral seepage wall 1 is from the border of the river bed 21 of the river channel 2 4m gradually increases to 5m toward the direction away from (away from) the riverbed 21, the width of the side seepage wall body of the side seepage wall body 1 is changed to 3m, the thickness of the gravel layer 11 is changed to 30cm, and the thickness of the seepage material is changed to 30cm. The ratio of parts by weight is changed to: 70 parts of zeolite and 30 parts of ceramsite, the left side standpipe 31 is 5m, 15m, and 2...

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Abstract

A river way lateral seepage wall composition and a construction method thereof belong to the river water treatment technical field; the river way lateral seepage wall composition comprises a lateral seepage wall body formed one side of a river bed of the river way or a river way slope on the other side, the wall body extends in a length direction of the river way slope, and simultaneously extends to slope ground surface depth of the river way slope; the river way lateral seepage wall composition also comprises a plurality of ventilate reaeration mechanisms arranged with intervals in the length direction of the lateral seepage wall body, an upper portion of the ventilate reaeration mechanism extends outside the lateral seepage wall body and is connected with outside environment, and a lower portion of the ventilate reaeration mechanism is paved in the lateral seepage wall body formed by filling percolation material in a filling mode. The river way lateral seepage wall composition can satisfy different depth requirement of soils, promotes active property of aerobic microbes, improves soil capacity of purifying river water quality, satisfies reaeration requirements, reduces land occupation area, enhances suitability of usage places; whole structure is simple, and investment is saved; energy saving effect is presented, and maintenance free effect is provided; construction is easy, construction requirement is not harsh, and the technical field of the river way lateral seepage wall composition can be fully presented.

Description

technical field [0001] The invention belongs to the technical field of river water treatment, and in particular relates to a lateral seepage wall structure of a river course, and also relates to a construction method of the lateral seepage wall structure of a river course. Background technique [0002] As important carriers of natural resources and the environment, rivers and lakes have economic functions such as flood control and drainage, irrigation of farmland, water supply, shipping and breeding, provide biological habitats to reflect biodiversity, regulate climate, improve the environment, conserve water sources and shape landscapes, etc. The ecological function of the city has important practical and future significance for the rise and fall of the city, economic development and prosperity. [0003] Although the protection of the water environment has long been the consensus of the people, due to the limitations of various subjective and objective conditions, a large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02E02B3/02
CPCY02W10/10
Inventor 安树青任丽君袁和忠张海飞潘玮张毓媛曹晨亮
Owner NANJING UNIV ECOLOGICAL RES INST OF CHANGSHU