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Method for in-situ remediation and utilization of open water body bottom sludge biomass

An in-situ repair and open technology, applied in water pollutants, biological sludge treatment, chemical instruments and methods, etc., can solve the problems of long repair period, water quality impact, slow effect, etc., to achieve short repair period and engineering quantity. Small, quick results

Pending Publication Date: 2018-08-31
SHANDONG LYUZHIXING ENVIRONMENT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used in-situ treatment technology has the following disadvantages: a single chemical treatment will have a certain impact on water quality, while a single plant or microbial restoration will be limited by natural environmental conditions, the restoration period is long, and the effect is slow

Method used

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  • Method for in-situ remediation and utilization of open water body bottom sludge biomass

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, adopt the present invention to carry out in-situ restoration and utilization of open water body sediment biomass in a certain river section of Laixi City, Shandong Province, and the implementation steps are:

[0023] 1) In the lower part of the open water bank of a certain river section in Laixi City, Shandong Province, ecological gabion was used to construct an ecological revetment (1);

[0024] 2) Lay a stone cushion (3) with a thickness of 50mm at the bottom of the space between the ecological revetment (1) and the open water bank (2), and then take the bottom mud of the open water body and mix it with microbial agents and chemical agents Mix to form a composite sludge layer (4), spread the composite sludge layer (4) on the gravel cushion (3) with a thickness of 450 mm; repeat this 5 times, and alternately lay the gravel cushion (3) from bottom to top ) and composite sludge layer (4); a vertical perforated exhaust pipe (5) is arranged on t...

Embodiment 2

[0029] Such as figure 1 As shown, adopt the present invention to carry out in-situ restoration and utilization of open water body sediment biomass in a certain river section of Binzhou City, Shandong Province, and the implementation steps are:

[0030] 1) In the lower part of the bank of an open water body in a certain river section in Binzhou City, Shandong Province, ecological gabion was used to construct an ecological revetment (1);

[0031] 2) Lay a stone cushion (3) with a thickness of 100mm at the bottom of the space between the ecological revetment (1) and the open water bank (2), and then take the bottom mud of the open water body and mix it with microbial agents and chemical agents Mix to form a composite sludge layer (4), spread the composite sludge layer (4) on the gravel cushion (3) with a thickness of 350 mm; repeat this 4 times, and alternately lay the gravel cushion (3) from bottom to top ) and composite sludge layer (4); a vertical perforated exhaust pipe (5) ...

Embodiment 3

[0036] Such as figure 1 As shown, adopt the present invention to carry out in-situ repair and utilization of open water body sediment biomass in a certain river section of Pingdu City, Shandong Province, and the implementation steps are:

[0037] 1) In the lower part of the open water bank of a certain river section in Pingdu City, Shandong Province, ecological gabion was used to construct an ecological revetment (1);

[0038]2) Lay a stone cushion (3) with a thickness of 300mm at the bottom of the space between the ecological revetment (1) and the open water bank (2), and then take the bottom mud of the open water body and mix it with microbial agents and chemical agents Mix to form a composite sludge layer (4), spread the composite sludge layer (4) on the gravel cushion (3) with a thickness of 1000mm; repeat this 7 times, and alternately lay the gravel cushion (3) from bottom to top ) and composite sludge layer (4); a vertical perforated exhaust pipe (5) is arranged on the ...

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Abstract

The invention discloses a method for in-situ remediation and utilization of open water body bottom sludge biomass. An ecological revetment constructed through ecological gabions is included; pebble cushion layers and composite sludge layers are sequentially and alternately laid at the bottom of the space between the ecological revetment and a water body bank from bottom to top, wherein the composite sludge layers are formed by mixing bottom sludge in an open water body, microbial agents and chemicals; a vertical porous exhaust pipe is arranged in the bottommost composite sludge layer, a planting soil layer is laid on the uppermost composite sludge layer, and the upper end of the porous exhaust pipe extends to the upper side of the planting soil layer; a vegetation layer is planted on the planting soil layer. A physical-chemical-biological combined treatment technology is used, green landscapes are created during bottom sludge remediation, the remediation period is short, and the methodtakes effect quickly.

Description

technical field [0001] The invention relates to the technical field of environmental engineering water quality restoration, in particular to a method for in-situ restoration and utilization of sediment biomass in open water bodies. Background technique [0002] In recent years, the ecosystems of many open water bodies such as rivers, lakes, and coastal waters have been damaged, and there have been ecological problems such as deterioration of water quality, deterioration of the growth environment of water sediments, and reduction of biodiversity, resulting in serious accumulation of pollutants, and a large amount of organic pollution in water The pollutants and heavy metals are deposited in the sediment of open water bodies. Due to the dynamic balance of absorption and release between the open water body and the sediment, when the water pollution caused by external sources is controlled, the release of pollutants in the sediment may lead to secondary pollution of the water bo...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/02C02F11/04C02F11/14C02F101/20C02F101/10C02F101/30
CPCC02F11/004C02F11/02C02F11/04C02F11/14C02F2101/20C02F2101/30C02F2101/105
Inventor 杨庆宾赵建军李秀芝时春华杨雪张忠伟徐展
Owner SHANDONG LYUZHIXING ENVIRONMENT ENG CO LTD
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