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Preparation method of microbial agent for treating soil remediation process wastewater

A microbial agent and soil remediation technology, which is applied in the field of water treatment, can solve the problems of low pollutant concentration and organic load in wastewater treatment, uneven treatment effects, low reuse rate, etc., and achieve inconvenient recycling and practical effects Good, to achieve the effect of self-settling

Active Publication Date: 2020-06-16
福建省环境保护设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing soil remediation methods usually use conventional biological wastewater treatment processes, but these processes are designed to treat organic matter that is easily degraded by microorganisms, and the pollutant concentration and organic load of the treated wastewater are relatively low, and microbial remediation is currently used The cost of treating process wastewater by this method is high, the reuse rate is low, the recyclability is poor, and the treatment effect is also uneven.

Method used

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  • Preparation method of microbial agent for treating soil remediation process wastewater

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Embodiment 1

[0021] A preparation method of a microbial bacterial agent for treating wastewater from a soil restoration process, comprising the following steps:

[0022] (1) Preparation of microbial load polymer gel;

[0023] (2) Mix vegetable gum, lecithin, sodium carboxymethyl cellulose, and sp-80, add deionized water with a weight of 15% of the mixture, and keep stirring at 55°C for 30 minutes to prepare an emulsion;

[0024] (3) Add the microbial-loaded polymer gel into the emulsion, send it into the colloid mill, stir evenly, dry the material out, and granulate it.

[0025] The microorganism-loaded polymer gel is composed of the following raw materials in parts by weight:

[0026] Acrylamide 20, ammonium persulfate 0.4, humic acid 3, Bacillus subtilis suspension 30, diatomaceous earth 7, chitin 5, glutaraldehyde 2.

[0027] The preparation method of the microorganism-loaded polymer gel comprises the following steps:

[0028] (1) Take ammonium persulfate, add it to deionized water 5...

Embodiment 2

[0034] A preparation method of a microbial bacterial agent for treating wastewater from a soil restoration process, comprising the following steps:

[0035] (1) Preparation of microbial load polymer gel;

[0036] (2) Mix vegetable gum, lecithin, sodium carboxymethyl cellulose, and sp-80, add 10% deionized water by weight of the mixture, and keep stirring at 50°C for 20 minutes to prepare an emulsion;

[0037] (3) Add the microbial-loaded polymer gel into the emulsion, send it into the colloid mill, stir evenly, dry the material out, and granulate it.

[0038] The microorganism-loaded polymer gel is composed of the following raw materials in parts by weight:

[0039] Acrylamide 15, ammonium persulfate 0.3, humic acid 2, Bacillus subtilis suspension 25, diatomaceous earth 5, chitin 4, glutaraldehyde 1.

[0040] The preparation method of the microorganism-loaded polymer gel comprises the following steps:

[0041] (1) Take ammonium persulfate, add it to deionized water 40 times...

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Abstract

The invention discloses a preparation method of a microbial agent for treating soil remediation process wastewater. The method comprises the following steps: (1) preparing microorganism-loaded polymergel; (2) preparing an emulsion; (3) stirring, drying and granulating. The microbial agent provided by the invention is especially suitable for treatment of process wastewater; added polyacrylamide and chitin gel loaded with the microorganisms can form a good synergistic flocculation effect, the water treatment effect is greatly improved, the finished product can achieve self-settling, the defectsthat a traditional microbial agent is inconvenient to recycle and cannot be repeatedly used in treatment are overcome, the cost is low, and the practical effect is good.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a preparation method of a microbial bacterial agent for treating wastewater in a soil restoration process. Background technique [0002] At present, when remediating polluted deep soil, especially the soil below the groundwater table. Surfactants, solvents, and other additives are often used to dissolve these contaminants to speed their removal from the contaminated area. However, this will generate a large amount of process wastewater, so these process wastewater must be effectively treated, otherwise it will cause secondary pollution to the environment. Although physical adsorption and chemical oxidation / reduction reactions can effectively treat these pollutants, they are expensive to operate and generate a large amount of solid waste that needs to be disposed of or landfilled; [0003] The microbial remediation method has many outstanding advantages, such as no sec...

Claims

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Application Information

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IPC IPC(8): C02F3/34
CPCC02F3/34
Inventor 涂德贵王珏宁星黄孝建从娟
Owner 福建省环境保护设计院有限公司