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Biological water purification agent powder and preparation thereof

A water purifier, biological technology, applied in biological water/sewage treatment, biochemical equipment and methods, microorganisms, etc., can solve the problems of separation of solids and water, uneconomical production costs, etc., to reduce drying costs and enhance stability. performance and use, and the effect of reducing packaging and shipping costs

Inactive Publication Date: 2009-09-23
上海兴胜生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fine particle size of the solids, with a particle size of 0.5-1.0 μm, it is difficult to separate the solids from water by conventional separation methods, and the production cost is uneconomical with membrane filtration technology.

Method used

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  • Biological water purification agent powder and preparation thereof
  • Biological water purification agent powder and preparation thereof
  • Biological water purification agent powder and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The preparation of embodiment 1 biological water purifier powder

[0051] Strain fermentation:

[0052] Take the strains of Bacillus megaterium, Bacillus subtills, Bacillus licheniformis, Bacillus brevis, Nitriferbacteria, Nitrifer bacteria., and ferment according to the following fermentation conditions:

[0053] 1. Seed solution preparation:

[0054] Culture medium: beef extract 3g / L peptone 10g / L NaCl 5g / L agar 15-20g / L water pH 7.4-7.6, sterilized, after cooling, inoculate strains, then shake on a shaker at 28-30°C for 16 hours ( 150 rpm).

[0055] 2. Primary Seed Preparation

[0056]Medium: 1% peanut cake, 0.5% corn steep liquor, 0.15% peptone, 0.3% dextrin, 0.02% ammonium sulfate, 0.01% magnesium sulfate, 0.08% calcium carbonate, water pH 7.4-7.6, sterilized, after cooling, add seed liquid, and inoculate according to 1% , cultivated at 28-30°C.

[0057] 3. Large tank fermentation

[0058] Medium: corn flour 3.17g / L, soybean flour 5.80g / L, peptone 3.62g / L, Mn...

Embodiment 2

[0078] The preparation of embodiment 2 biological water purifier powders

[0079] The fermentation method is the same as in Example 1, and the structure and method of use of the first-level solidifier and the second-level solidifier are the same as in Example 1.

[0080] Preparation of powder:

[0081] The formula of the biological water purifier powder is as follows: compound bacillus 45%, nitrifying bacteria 15%, flour 40%

[0082] The formula w% of compound bacillus: Bacillus megaterium / Bacillus subtills / Bacillus licheniformis / Bacillus brevis / Nitrifer bacteria=10%: 20%: 20%: 30%; 20%

[0083] Preparation:

[0084] a. take the fermentation broth;

[0085] b. Add 0.2w% flocculant PDADMA and 0.15w% PAS for flocculation;

[0086] c. Remove 60% to 70% of water through a primary solids separator to obtain a concentrated solution;

[0087] d. Separated by a two-pole solid separator to obtain a formed solid with a solid content of 30% to 45%;

[0088] e. The fermented bacteri...

Embodiment 3

[0090] The preparation of embodiment 3 biological water purifier powders

[0091] The fermentation method is the same as in Example 1, and the structure and method of use of the first-level solidifier and the second-level solidifier are the same as in Example 1.

[0092] Preparation of powder:

[0093] The formula of the biological water purifier powder is as follows: compound bacillus 50%, nitrifying bacteria 20%, cornmeal 30%

[0094] The formula w% of compound bacillus: Bacillus megaterium / Bacillus subtills / Bacillus licheniformis / Bacillus brevis / Nitrifer bacteria=14%: 16%: 23%: 24%; 23%

[0095] Preparation:

[0096] a. take the fermentation broth;

[0097] b. Add 0.25w% flocculant PDADMA-AM and 0.3w% PFC flocculation;

[0098] c. Remove 60% to 70% of water through a primary solids separator to obtain a concentrated solution;

[0099] d. Separated by a two-pole solid separator to obtain a formed solid with a solid content of 30% to 45%;

[0100] e. The fermented bacte...

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PUM

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Abstract

The invention discloses a biological water purification agent powder and a preparation thereof, belonging to the technical field of microorganism environment protection. The biological water purification agent powder comprises 35-55 wt% of composite bacillus, 10-20 wt% of nitrobacteria and 25-55 wt% of auxiliary material. In the preparation of the biological water purification agent powder, a primary solid content separator is used for removing 60-70% of water, a secondary solid content separator is used for obtaining a formed solid content with the solid content being 30-45%, and finally mixing preparation is carried out to obtain the finished product. The biological water purification agent powder can be used in purification treatment of contaminated water to improve the water quality, and the substrate sludge is decomposed to provide an excellent water quality environment for aquaculture animals.

Description

technical field [0001] The invention belongs to the technical field of microbial environmental protection, and in particular relates to a biological water purifier powder and its preparation and application. Background technique [0002] The biological water purifier is made of high-efficiency compound bacillus and nitrifying bacteria through fermentation. It is mainly used to decompose organic pollutants such as aquatic animal excrement, residual bait and animal and plant debris. To ensure the water quality in the middle and late stages of cultivation. At present, the sales form of the product is mainly water suspension, and its solid content is 2% to 5%. The water suspension increases the cost of packaging, transportation and storage. However, due to the fine particle size of the solids, with a particle size of 0.5-1.0 μm, it is difficult to separate the solids from water by conventional separation methods, and the production cost of membrane filtration technology is une...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C12N1/20C12R1/07C12R1/11C12R1/125C12R1/10C12R1/08C12R1/01
Inventor 耿英慧
Owner 上海兴胜生物科技有限公司
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