Biological improver for black and odorous water bottom sludge

A biological modifier, black and odorous water technology, applied in the field of water treatment, can solve the problems of effective sludge utilization, difficult sludge treatment, secondary pollution, etc. The effect of strong adsorption capacity

Inactive Publication Date: 2019-02-15
福州宇澄环保工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use effect of this kind of chemical synthetic materials has been fully affirmed in the industry, but as the country's environmental protection requirements become more stringent, the disadvantages of excessive use of chemical synthetic materials have become prominent, and the main concerns of the industry lie in two points Firstly, the production and use of many chemically synthesized materials will bring obvious secondary pollution; secondly, most of the chemically synthesized materials remain in the sludge, which makes sludge treatment more difficult and complicated, and gives some sludge Effective utilization brings difficulties and also inhibits the development of many enterprises related to sludge recycling in the industry

Method used

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  • Biological improver for black and odorous water bottom sludge
  • Biological improver for black and odorous water bottom sludge

Examples

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Effect test

Embodiment 1

[0027] A bio-improving agent for black and odorous water bottom mud. The raw materials include 20 parts of modified diatomite, 10 parts of polyaluminum ferric sulfate, 10 parts of bentonite, 10 parts of chitosan, 10 parts of bamboo shoot shells, and 10 parts of bamboo shoot shells by weight. 8 parts of vitae alkali extract, 10 parts of microbial agent.

[0028] The preparation method of the modified diatomite is as follows: the diatomite is placed in a 5mol / L hydrochloric acid solution, stirred and mixed for 2-5 hours, then taken out and washed until neutral, and then the diatomite is calcined at 500°C for 1 hour , to obtain modified diatomite.

[0029] The preparation method of the bamboo shoot shells is as follows: crush the washed and dried bamboo shoot shells, sieve them, and dry them; then place them in 0.5mol·L -1 In the nitric acid solution, immerse at 50-70 ℃ for 2-4 h;

[0030] The preparation method of the vitex ash alkali extract is as follows: take the vitex bran...

Embodiment 2

[0036] A bio-improving agent for black and odorous water bottom mud, its raw materials include 22 parts of modified diatomite, 13 parts of polyaluminum ferric sulfate, 13 parts of bentonite, 13 parts of chitosan, 13 parts of bamboo shoot shells, 10 parts of vitae alkali extract, 13 parts of microbial agent.

[0037] The preparation method of the modified diatomite is as follows: the diatomite is placed in a 5mol / L hydrochloric acid solution, stirred and mixed for 2-5 hours, then taken out and washed until neutral, and then the diatomite is calcined at 500°C for 1 hour , to obtain modified diatomite.

[0038] The preparation method of the bamboo shoot shells is as follows: crush the washed and dried bamboo shoot shells, sieve them, and dry them; then place them in 0.5mol·L -1 In the nitric acid solution, immerse at 50-70 ℃ for 2-4 h;

[0039] The preparation method of the vitex ash alkali extract is as follows: take the vitex branches and leaves, cremate them into ashes, diss...

Embodiment 3

[0045] A bio-improving agent for black and odorous water bottom mud, the raw materials of which are calculated in parts by weight, including 25 parts of modified diatomite, 15 parts of polyaluminum ferric sulfate, 15 parts of bentonite, 15 parts of chitosan, 15 parts of bamboo shoot shells, 15 parts of vitae alkali extract, 15 parts of microbial agent.

[0046] The preparation method of the modified diatomite is as follows: the diatomite is placed in a 5 mol / L hydrochloric acid solution, stirred and mixed for 5 hours, then taken out and washed until neutral, and then calcined at 500° C. for 1 hour to obtain Modified diatomaceous earth.

[0047] The preparation method of the bamboo shoot shells is as follows: crush the washed and dried bamboo shoot shells, sieve them, and dry them; then place them in 0.5mol·L -1 In the nitric acid solution, immerse at 50-70 ℃ for 2-4 h;

[0048] The preparation method of the vitex ash alkali extract is as follows: take the vitex branches and ...

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Abstract

The invention belongs to the field of water treatment, and particularly relates to a biological improver for black and odorous water bottom sludge. The biological improver is prepared from the following raw materials according to parts by weight: 20-25 parts of modified diatomite, 10-15 parts of polyaluminium ferric sulfate, 10-15 parts of bentonite, 10-15 parts of chitosan, 10-15 parts of bambooshells, 8-15 parts of vitex barilla extracts, and 10-15 parts of a microbial agent. The biological improver provided by the invention has the advantages that the polluted sludge can regain a positivesoil framework and a positive pore structure, so that the reproduction and activation capabilities of benthonic organisms can be enhanced, endogenous pollution and release can be reduced, the substrate redox potential can be improved, the amount of dissolved oxygen in the bottom sludge can be increased, and the bottom sludge can no longer be black and odorous.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a bio-improving agent for bottom mud of black and odorous water bodies. Background technique [0002] Traditional sediment improvement materials usually refer to various chemical coagulation and flocculants used in the treatment, commonly used chemical synthetic materials such as lime, polyiron, polyaluminum, and polymers. The use effect of this kind of chemical synthetic materials has been fully affirmed in the industry, but as the country's environmental protection requirements become more stringent, the disadvantages of excessive use of chemical synthetic materials have become prominent, and the main concerns of the industry lie in two points Firstly, the production and use of many chemically synthesized materials will bring obvious secondary pollution; secondly, most of the chemically synthesized materials remain in the sludge, which makes sludge treatment more diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02C02F101/20C02F101/22C02F101/30
CPCC02F11/00C02F11/02C02F2101/20C02F2101/22C02F2101/30C02F2103/007
Inventor 付翼陈玉良潘晋峰
Owner 福州宇澄环保工程设计有限公司
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