Improver for improving river reservoir contaminated sediment matrix and application thereof

A technology of polluting bottom sludge and modifier, applied in sludge treatment, polluted waterway/lake/pond/river treatment, biological sludge treatment, etc., to improve bottom sludge matrix, increase dissolved oxygen, and reduce bottom heat Effect

Inactive Publication Date: 2018-07-20
ANHUI MEIZIRAN ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a kind of improver and its application for improving the matrix of polluted bottom mud of river reservoirs, restore the benign soil skeleton and pore structure of polluted bottom mud, reduce the release of endogenous pollution, increase the oxidation-reduction potential of the matrix, and improve the matrix microorganisms Habitat, restore the continuous self-purification ability of overlying water and endogenous pollution, which can effectively solve the problems in the background technology

Method used

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  • Improver for improving river reservoir contaminated sediment matrix and application thereof
  • Improver for improving river reservoir contaminated sediment matrix and application thereof
  • Improver for improving river reservoir contaminated sediment matrix and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of improver for improving river reservoir polluted sediment matrix, said improver includes 6.3% Ca 2 o 2 , 20.3% CaO, 11.4% Al 2 (SO 4 ) 3 , 8.5% FeO, 28.5% bone meal, 9.5% chitosan, 15.5% chitin.

[0026] Further, the manufacturing process of the modifier includes the following steps:

[0027] 1) Uniformly disperse and mix the above ingredients according to a certain proportion;

[0028] 2) The mixed agent is ground in a grinder, and the mixed powder obtained after grinding is dried in a dryer to obtain the final modifier.

[0029] The present invention also provides an application of a modifier for improving river reservoir polluted sediment matrix, comprising the following steps:

[0030] a) Take an appropriate amount of the above-mentioned improvers, add purified water to make the concentration respectively 40g / m 2 , 50g / m 2 , 60g / m 2 , 70g / m 2 , 80g / m 2 The five groups of solutions;

[0031] b) Take six parts of the same weight of bottom mud, res...

Embodiment 2

[0035] A kind of improver for improving river reservoir polluted sediment matrix, said improver includes 7.1% Ca 2 o 2 , 20.8% CaO, 11.9% Al 2 (SO 4 ) 3 , 8.8% FeO, 29.4% bone meal, 11.1% chitosan, 10.9% chitin.

[0036] Further, the manufacturing process of the modifier includes the following steps:

[0037] 1) Uniformly disperse and mix the above ingredients according to a certain proportion;

[0038] 2) The mixed agent is ground in a grinder, and the mixed powder obtained after grinding is dried in a dryer to obtain the final modifier.

[0039] The present invention also provides an application of a modifier for improving the matrix of river reservoir polluted sediment, comprising the following steps:

[0040] a) Take an appropriate amount of the above-mentioned improver, add purified water to make the concentration respectively 40g / m 2 , 50g / m 2 , 60g / m 2 , 70g / m 2 , 80g / m 2 The five groups of solutions;

[0041] b) Take six parts of the same weight of bottom mud...

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PUM

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Abstract

The invention discloses an improver for improving river reservoir contaminated sediment matrix. The improver comprises: 6.3%-8.5% of Ca2O2, 20.3%-22.8% of CaO, 11.4%-13.5% of Al2(SO4)3, 8.5%-10.3% ofFeO, 28.5%-30.3% of bone meal, 9.5%-12.5% of chitosan, and 10.4%-12.6% of chitin. The improver provided by the invention enables the contaminated sediment matrix to restore a benign soil skeleton andpore structure, reduces endogenous pollution release, enhances the matrix redox potential, improves the microhabitat of the matrix, and restores the sustainable self-purification capacity to overlyingwater and endogenous pollution.

Description

technical field [0001] The invention relates to a modifier for improving river reservoir polluted bottom mud matrix and application thereof, which belongs to the technical field of river, lake, pond and other river basin polluted bottom mud treatment. Background technique [0002] In recent years, with the rapid development of my country's economy, a large amount of industrial wastewater and domestic sewage have entered rivers, lakes and other water bodies, resulting in serious pollution of rivers and lakes, and the water body is black and smelly and eutrophic. At present, 85% of the lakes in my country have experienced eutrophication to varying degrees, and large areas of algal blooms have occurred in Chaohu Lake, Taihu Lake and Dianchi Lake, which have seriously affected the production and life of surrounding residents and the safety of drinking water. After pollutants enter rivers and lakes, most of them accumulate in the bottom mud, which leads to serious pollution of ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02
CPCC02F11/00C02F11/02C02F2103/007
Inventor 贺振洲崔康平许为义汤海燕丁文东郭万茹
Owner ANHUI MEIZIRAN ENVIRONMENTAL TECH
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