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Preparation method of microbial flocculant complex and application of microbial flocculant complex in water treatment field

A microbial flocculant and flocculant technology, which is applied in the field of water treatment, can solve the problems of low research efficiency of microbial flocculants, lack of wide application, single treatment object, etc., to achieve improved dehydration efficiency, simple use method, and high removal rate Effect

Inactive Publication Date: 2018-11-13
SHENZHEN WENKE GARDENING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, microbial flocculants have not been widely used in practical engineering because of their low research efficiency, single treatment object, high preparation cost, low yield, and difficult storage.

Method used

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  • Preparation method of microbial flocculant complex and application of microbial flocculant complex in water treatment field
  • Preparation method of microbial flocculant complex and application of microbial flocculant complex in water treatment field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A microbial flocculant compound, the flocculant is composed of a microbial flocculant mixture and a natural polymer modified flocculant, and the compounding method is to combine 75 parts of the microbial flocculant mixture with 25 parts of the natural polymer modified flocculant Dissolve in water, stir at 120rpm for 35min, let it stand still, collect the precipitate by centrifugation, and dry it in vacuum at a temperature of 55°C to obtain the microbial flocculant complex WEXN-1.

[0035] The microbial flocculant mixture includes 25 parts of flocculants fermented by Rhodococcus erythropolis ATCC 10543, 10 parts of flocculants fermented by Bacillus licheniformis CGMCC 1.6510, 5 parts of flocculants fermented by Streptomyces parvum CGMCC 4.5927, fermented by Geotrichum candidum CGMCC 2.1320 15 parts of flocculants were obtained, and 20 parts of flocculants were obtained by fermenting Cocephalus racemosa CGMCC 3.3737.

[0036] The preparation method of each described micro...

Embodiment 2

[0054] A microbial flocculant compound, the flocculant is compounded by a microbial flocculant mixture and a natural polymer modified flocculant, and the compounding method is to combine 65 parts of the microbial flocculant mixture with 35 parts of the natural polymer modified flocculant Dissolve in water, stir at 110rpm for 40min, let it stand still, collect the precipitate by centrifugation, and dry it in vacuum at a temperature of 56°C to obtain the microbial flocculant complex WEXN-2.

[0055] The microbial flocculant mixture includes 20 parts of flocculants fermented by Rhodococcus erythropolis ATCC 10543, 5 parts of flocculants fermented by Bacillus licheniformis CGMCC 1.6510, 5 parts of flocculants fermented by Streptomyces parvum CGMCC 4.5927, fermented by Geotrichum candidum CGMCC 2.1320 10 parts of flocculants were obtained, and 25 parts of flocculants were obtained by fermentation of Cocephalus racemosa CGMCC 3.3737.

[0056] The preparation method of each described...

Embodiment 3

[0074] A microbial flocculant compound, the flocculant is compounded by a microbial flocculant mixture and a natural polymer modified flocculant, and the compounding method is to combine 80 parts of the microbial flocculant mixture with 20 parts of the natural polymer modified flocculant Dissolve in water, stir at 100rpm for 40min, let it stand still, collect the precipitate by centrifugation, and dry it in vacuum at a temperature of 55°C to obtain the microbial flocculant complex WEXN-3.

[0075] The microbial flocculant mixture includes 30 parts of flocculants fermented by Rhodococcus erythropolis ATCC 10543, 10 parts of flocculants fermented by Bacillus licheniformis CGMCC 1.6510, 5 parts of flocculants fermented by Streptomyces parvum CGMCC 4.5927, fermented by Geotrichum candidum CGMCC 2.1320 10 parts of flocculants were obtained, and 25 parts of flocculants were obtained by fermentation of Cocephalus racemosa CGMCC 3.3737.

[0076] The preparation method of each describe...

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Abstract

The invention discloses a preparation method of a microbial flocculant complex and an application of the microbial flocculant complex in water treatment. The microbial flocculant complex is prepared by compounding a microbial flocculant mixture with a natural high-molecular modified flocculant. The microbial flocculant mixture is produced by fermentation with rhodococcus erythropolis ATCC 10543, bacillus licheniformis CGMCC 1.6510, streptomyces parvus CGMCC 4.5927, cryytococcus neoformans CGMCC 2.1320 and syncephalastrum racemosum CGMCC 3.3737; the natural high-molecular modified flocculant isprepared by modification with flaxseed gum as a matrix, H2O2-FeSO4 as an initiator and a triethylamine and epoxy chloropropane copolymer as a cationic monomer. When the microbial flocculant complex is used in water treatment, the flocculation effect is good, the use amount of a flocculant can be greatly reduced, the flocculation rate can be increased, and the microbial flocculant complex is safeand non-toxic, has no secondary pollution, is a water treatment agent with good performance, and can be used for treating urban sewage, industrial wastewater and the like.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a preparation method of a microbial flocculant compound and its application in the field of water treatment. Background technique [0002] my country is a country with relatively poor water resources. With the rapid development of social economy in recent years, water consumption has increased sharply, which will inevitably produce various industrial wastewater and urban sewage. Therefore, the problem of water treatment (including raw water treatment, sewage treatment and industrial water treatment, etc.) has become more and more serious. Flocculation and sedimentation method is a simple, economical and most widely used water treatment method, and flocculant is the core of this water treatment technology, and the performance of flocculant determines the effect of water treatment. [0003] At present, the commonly used flocculants have different problems. For example, t...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F11/14C12P39/00C12P1/02C12P1/04C12R1/01C12R1/10C12R1/465C12R1/645
CPCC02F3/34C02F11/14C12P1/02C12P1/04C12P39/00
Inventor 许静王业春刘天翔彭春燕曹华英王序驰胡文强李军娟陈嘉健张正蕊
Owner SHENZHEN WENKE GARDENING IND
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