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In-situ remediation method of black odor sediment in contaminated static water body

A black and odorous bottom sludge and in-situ repair technology, applied in the direction of biological sludge treatment, can solve the problems of aggravated water pollutants, inability to function for a long time, unstable growth environment and action time of biological agents, etc., and achieve the goal of reducing the impact Effect

Active Publication Date: 2018-03-06
北京天益源生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing static water body sediment treatment is usually through engineering means (aeration, dredging, stirring, etc.), adding chemical agents (oxidants, curing agents, flocculants, etc.) or by adding natural or exogenous Biological agents are used to degrade sediment. Existing engineering and chemical dosing methods can effectively address the existing sediment problems, but they ignore the mutual conversion of pollutants between sediment and water bodies and the continuous accumulation of pollutants in water to the bottom. The problem is that adding biological agents can accelerate the degradation of the sediment, but the degradation products of the sediment entering the water may cause aggravation of water quality pollutants, which can cause algal blooms, and the growth environment and action time of the added biological agents are unstable, so they cannot long-term effect

Method used

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  • In-situ remediation method of black odor sediment in contaminated static water body

Examples

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Effect test

Embodiment 1

[0037] This embodiment provides an in-situ repair method for black and odorous bottom mud in polluted static water bodies, comprising the following steps:

[0038] Step 101: Prepare compound microbial preparation:

[0039] The composition of the composite microbial preparation is (mass ratio) Bacillus fermentation broth: fatty alcohol polyoxyethylene: Tween 80: urea: diammonium hydrogen phosphate: EDTA: distilled water=44:5:0.1:0.1:0.1:0.0001:50.7, The composition ratio of the bacillus fermented liquid is (number of bacteria ratio) Bacillus subtilis: Bacillus amyloliquefaciens: Bacillus pumilus: Bacillus licheniformis: Bacillus megaterium=10×10 7 CFU / ml: 6×10 7 CFU / ml: 3×10 7 CFU / ml: 1.5×10 7 CFU / ml: 1.5×10 7 CFU / ml. The specific preparation method is as follows:

[0040] (1) The preparation of seed solution comprises the following steps:

[0041] Activation of slant strains: the slant test tubes of Bacillus mohaiwei and Bacillus pumilus were cultured in a constant temp...

Embodiment 2

[0062] This embodiment provides an in-situ repair method for black and odorous bottom mud in polluted static water bodies, comprising the following steps:

[0063] Step 201: Prepare compound microbial preparation:

[0064] The composition of the composite microbial preparation is (mass ratio) Bacillus fermentation broth: fatty alcohol polyoxyethylene: Tween 80: urea: diammonium hydrogen phosphate: EDTA: distilled water=60:1:0.3:0.3:0.3:0.0002:38, The composition ratio of the bacillus fermented liquid is (number of bacteria ratio) Bacillus subtilis: Bacillus amyloliquefaciens: Bacillus pumilus: Bacillus licheniformis: Bacillus megaterium=10×10 7 CFU / ml: 6×10 7 CFU / ml: 3×10 7 CFU / ml: 1.5×10 7 CFU / ml: 1.5×10 7 CFU / ml.

[0065] (1) The preparation of seed solution comprises the following steps:

[0066] Activation of slant strains: the slant test tubes of Bacillus mohaiwei and Bacillus pumilus were cultured in a constant temperature incubator at 32°C for 48 hours.

[0067] ...

Embodiment 3

[0087] This embodiment provides an in-situ repair method for black and odorous bottom mud in polluted static water bodies, comprising the following steps:

[0088] Step 301: Prepare compound microbial preparation:

[0089] The composition of the composite microbial preparation is (mass ratio) Bacillus fermentation broth: fatty alcohol polyoxyethylene: Tween 80: urea: diammonium hydrogen phosphate: EDTA: distilled water=55:3:0.25:0.25:0.25:0.0002:41.25, The composition ratio of Bacillus fermented liquid is (bacteria number ratio) Bacillus subtilis: Bacillus amyloliquefaciens: Bacillus pumilus: Bacillus licheniformis: Bacillus megaterium=9×10 7 CFU / ml: 3×10 7 CFU / ml: 1.4×10 7 CFU / ml: 1.4×107CFU / ml: 1.4×107CFU / ml.

[0090] The specific steps of preparing the compound microbial preparation are the same as those in Example 1 and Example 2, the concentration of the fermentation broth is adjusted in proportion, and the insufficient part can be supplemented with distilled water.

...

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Abstract

The invention discloses an in-situ remediation method of black odor sediment in a contaminated static water body. The in-situ remediation method is characterized by comprising the following steps: preparing a compound microbial preparation; pretreating the compound microbial preparation to obtain a diluent; adding the diluent, wherein one construction period lasts 30 days, and the diluent is addedonce every 5-7 days and 3-5 times every month. By the in-situ remediation method, the way of material transfer and exchange between the sediment and the water body is changed, and influence of changeof the water body and a biological chain in the water body on the sediment in the sediment remediation process is reduced.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an in-situ restoration method for black and odorous bottom mud in polluted static water bodies. Background technique [0002] The existing static water body sediment treatment is usually through engineering means (aeration, dredging, stirring, etc.), adding chemical agents (oxidants, curing agents, flocculants, etc.) or by adding natural or exogenous Biological agents are used to degrade sediment. Existing engineering and chemical dosing methods can effectively address the existing sediment problems, but they ignore the mutual conversion of pollutants between sediment and water bodies and the continuous accumulation of pollutants in water to the bottom. The problem is that adding biological agents can accelerate the degradation of the sediment, but the degradation products of the sediment entering the water may cause aggravation of water quality pollutants, which can cause...

Claims

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Application Information

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IPC IPC(8): C02F11/02
CPCC02F11/02
Inventor 刘绪柱
Owner 北京天益源生物科技有限公司
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