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Sewage treatment flocculant embedded with microorganisms and preparation method of sewage treatment flocculant

A microbial flocculant and sewage treatment technology, applied in biological water/sewage treatment, special compound water treatment, water/sludge/sewage treatment, etc., can solve the problem of low efficiency of reducing heavy metals, ineffective removal of heavy metal ions, functional group Low content and other problems, to achieve the effect of protecting stability, improving stability and enhancing flocculation effect

Inactive Publication Date: 2021-03-12
广州市点滴生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although microbial flocculants have many advantages, due to the low content of reducing functional groups in microbial flocculants, the removal effect of heavy metal ions in water is not outstanding, and the efficiency of reducing heavy metals is not high.

Method used

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  • Sewage treatment flocculant embedded with microorganisms and preparation method of sewage treatment flocculant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Raw material preparation: 65 parts of microbial flocculant and 25 parts of polymer flocculant.

[0027] 20 parts of Monascus and 40 parts of Bacillus licheniformis in the microbial flocculant.

[0028] The main raw materials of the polymer flocculant are 35 parts of ferric oxide, 60 parts of hydroxyl-terminated polycaprolactone, and 8-15 parts of polyaluminum chloride.

[0029] The fermentation medium mainly includes the following components: glucose 8.55g / L, yeast powder 1.53g / L, sodium chloride 5.05g / L, MgSO 4 ·7H 2 O 1.07g / L, potassium dihydrogen phosphate 15.83g / L.

[0030] A method for preparing a sewage treatment flocculant for embedding microorganisms, characterized in that it comprises the following steps;

[0031] (1) Preparation of microbial flocculant: take Monascus and Bacillus licheniformis strains and place them in the fermentation culture medium at a temperature of 37°C, ferment for 40 hours, centrifuge for 8 minutes, separate the liquid phase, and add...

Embodiment 2

[0036] Raw material preparation: 70 parts of microbial flocculant and 28 parts of polymer flocculant.

[0037]20 parts of Monascus and 40 parts of Bacillus licheniformis in the microbial flocculant.

[0038] The main raw materials of the polymer flocculant are 41 parts of ferric oxide, 63 parts of hydroxyl-terminated polycaprolactone, and 11 parts of polyaluminum chloride.

[0039] The fermentation medium mainly includes the following components: glucose 8.55g / L, yeast powder 1.53g / L, sodium chloride 5.05g / L, MgSO 4 ·7H 2 O 1.07g / L, potassium dihydrogen phosphate 15.83g / L.

[0040] A method for preparing a sewage treatment flocculant for embedding microorganisms, characterized in that it comprises the following steps;

[0041] (1) Preparation of microbial flocculant: take Monascus and Bacillus licheniformis strains and put them in the fermentation culture medium at a temperature of 42°C, ferment for 45 hours, centrifuge for 9 minutes, separate the liquid phase, and add 2 ti...

Embodiment 3

[0046] Raw material preparation: 75 parts of microbial flocculant and 35 parts of polymer flocculant.

[0047] 20 parts of Monascus and 40 parts of Bacillus licheniformis in the microbial flocculant.

[0048] The main raw materials of the polymer flocculant are 45 parts of ferric oxide, 70 parts of hydroxyl-terminated polycaprolactone, and 15 parts of polyaluminum chloride.

[0049] The fermentation medium mainly includes the following components: glucose 8.55g / L, yeast powder 1.53g / L, sodium chloride 5.05g / L, MgSO 4 ·7H 2 O 1.07g / L, potassium dihydrogen phosphate 15.83g / L.

[0050] A method for preparing a sewage treatment flocculant for embedding microorganisms, characterized in that it comprises the following steps;

[0051] (1) Preparation of microbial flocculant: take Monascus and Bacillus licheniformis strains and place them in the fermentation medium at a temperature of 45°C, ferment for 60 hours, centrifuge for 10 minutes, separate the liquid phase, and add 2 times ...

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Abstract

The invention discloses a sewage treatment flocculant embedded with microorganisms and a preparation method of the sewage treatment flocculant. The sewage treatment flocculant is a composite flocculant composed of 65-75 parts by weight of a microbial flocculant and 25-35 parts by weight of a polymeric flocculant; the microbial flocculant is mainly prepared by the following steps: carrying out fermentation reaction on two mixed bacteria, namely monascus and bacillus licheniformis, and coating microorganisms with a copolymer of crown ether and ethyl acrylate; the polymeric flocculant is preparedby reaction of ferroferric oxide, hydroxyl-terminated polycaprolactone and polyaluminum chloride; the sewage treatment flocculant prepared by the invention can be used for efficiently removing most pollutants such as phosphorus, suspended solids, heavy metal ions, COD and the like in sewage; the sewage treatment flocculant embedded with microorganisms can be widely applied to treatment of industrial enterprises and municipal domestic sewage.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment flocculant for embedding microorganisms and a preparation method thereof. Background technique [0002] At this stage, there are mainly three types of flocculants used in sewage treatment, namely inorganic flocculants, organic polymer flocculants and microbial flocculants. Among them, the cost and price of inorganic flocculants and organic polymer flocculants are lower, and the sewage treatment effect is better. However, if a large amount of inorganic flocculants and organic polymer flocculants are used, it will cause a large amount of sludge enrichment, increase the generation of solid waste, and bring To secondary environmental pollution. Microbial flocculants are mainly flocculants obtained by fermentation of microorganisms such as bacteria and fungi. The main active substances are polysaccharides and proteins in bacterial molecules. Compared with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCC02F3/34C02F2305/06
Inventor 詹永健
Owner 广州市点滴生物科技有限公司
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