Microbial flocculant composition and preparation method thereof

The technology of a microbial flocculant and composition is applied in the field of microbial flocculant composition and its preparation, which can solve the problems of affecting the growth of bacteria and reducing the activity of the flocculant, and achieves good flocculation effect, remarkable effect, better flocculation effect and excellent flocculation effect. Effect

Inactive Publication Date: 2017-03-29
QINGDAO YUNTIAN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the best temperature for flocculant production is between 25-35°C. If the temperature is too low, it will affect the growth of bacteria, and if the temperature is too high, the activity of the flocculant produced will be reduced.

Method used

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  • Microbial flocculant composition and preparation method thereof

Examples

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Effect test

Embodiment 1

[0017] Example 1 Microbial flocculant composition of the present invention and preparation method thereof

[0018] A microbial flocculant composition, comprising the following raw materials in parts by weight: 30 parts of co-fermentation products of Curvularia lunae and Rhodococcus erythroflates, 50 parts of activated silicic acid, and 3 parts of polyoxyethylene.

[0019] Wherein the preparation method of the co-fermentation product of Curvularia crescenae and Rhodococcus erythroflates is a two-stage fermentation method, which specifically includes the following steps: after the fermentation medium is sterilized, insert 10% of Rhodococcus erythroflates seed fermentation liquid, control The fermentation temperature is 30°C and the ventilation volume is 1.5m 3 Cultivate under the condition of 40 hours per hour, insert 10% Curvularia lunata seed fermentation broth at this time, control the fermentation temperature to be 26°C, and the ventilation rate to be 1.8m 3 Cultivate for 2...

Embodiment 2

[0022] Example 2 Microbial flocculant composition of the present invention and preparation method thereof

[0023] A microbial flocculant composition, comprising the following raw materials in parts by weight: 40 parts of co-fermentation products of Curvularia lunae and Rhodococcus erythroflates, 95 parts of activated silicic acid, and 6 parts of polyoxyethylene.

[0024] Wherein the preparation method of the co-fermentation product of Curvularia crescenae and Rhodococcus erythroflates is a two-stage fermentation method, which specifically includes the following steps: after the fermentation medium is sterilized, insert 10% of Rhodococcus erythroflates seed fermentation liquid, control The fermentation temperature is 32°C and the ventilation volume is 1.7m 3 Cultivate under the condition of 44 hours per hour, insert 10% Curvularia lunata seed fermentation broth at this time, control the fermentation temperature to be 29°C, and the ventilation rate to be 2.2m 3 Cultivate for 3...

Embodiment 3

[0027] Example 3 Microbial flocculant composition of the present invention and preparation method thereof

[0028] A microbial flocculant composition, comprising the following raw materials in parts by weight: 35 parts of co-fermentation products of Curvularia lunae and Rhodococcus erythroflates, 75 parts of activated silicic acid, and 5 parts of polyoxyethylene.

[0029] Wherein the preparation method of the co-fermentation product of Curvularia crescenae and Rhodococcus erythroflates is a two-stage fermentation method, which specifically includes the following steps: after the fermentation medium is sterilized, insert 10% of Rhodococcus erythroflates seed fermentation liquid, control The fermentation temperature is 32°C and the ventilation volume is 1.6m 3 Cultivate under the condition of 42 hours per hour, insert 10% Curvularia lunata seed fermentation broth at this time, control the fermentation temperature to be 28°C, and the ventilation rate to be 2.0m 3 Cultivate for 2...

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Abstract

The invention provides a microbial flocculant composition and a preparation method thereof and belongs to the field of wastewater treatment. In order to overcome the shortcomings of an inorganic flocculant and an organic flocculant in the prior art, the biological composite flocculant of the invention comprises the following raw materials, by weight, of 30-40 parts of co-fermentation products of curvularia lunata and rhodococcus erythropolis, 50-95 parts of activated silicate and 3-6 parts of polyoxyethylene. The microbial flocculant composition has the advantages of being high in flocculation activity, safe, non-toxic, free of secondary pollution, and suitable for being applied and popularized.

Description

technical field [0001] The invention relates to a microbial flocculant composition and a preparation method thereof, belonging to the field of wastewater treatment. Background technique [0002] Microbial flocculants are biomacromolecular substances produced by microorganisms. They have the ability to coagulate and precipitate other substances. At the same time, they have the characteristics of a wide range of flocculation, high efficiency, non-toxicity, and pollution-free. It overcomes conventional inorganic flocculants and organic flocculants. Harmful to the human body and prone to secondary pollution, and can be industrialized by means of bioengineering. Therefore, the development of microbial flocculants is important for improving production processes, human health and environmental protection, and green food production. significance and has broad application prospects. [0003] Factors affecting the production of microbial flocculants mainly include the type of floccul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCC02F3/34C02F3/341C02F2305/06C12P1/02C12P1/04C12N1/145C12N1/205C12R2001/01C12R2001/645
Inventor 王盛梅
Owner QINGDAO YUNTIAN BIOTECH
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