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A kind of biological algae removal granule and preparation method thereof

A granular and biological technology, applied in the field of environmental governance, can solve the problems of poor biological treatment of eutrophication, short duration of algae removal, and low content of effective viable bacteria, so as to facilitate the attachment and reproduction of bacteria, The effect of shortening the effective time, reducing the cost and the workload

Active Publication Date: 2020-09-01
SINOPEC SHANGHAI PETROCHEMICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problems in the prior art of biological algae removal products with low effective viable bacteria content, short duration of algae removal, and slow effect on eutrophication of water bodies caused by biological treatment, the present invention provides a kind of effective microorganism with a high number of viable bacteria, Long-lasting and quick-acting biological algae removal granules

Method used

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  • A kind of biological algae removal granule and preparation method thereof
  • A kind of biological algae removal granule and preparation method thereof

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preparation example Construction

[0037]The present invention also provides a method for preparing biological algae-removing granules described in the above technical solution, comprising the following steps:

[0038] (1) Mix the dry and sterilized polyvinyl alcohol porous carrier particles with the microbial culture medium, adsorb for 0.8 to 1.5 hours, separate the solid and liquid, and collect the solid phase components as the adsorption carrier;

[0039] (2) Mix the adsorption carrier with the photosynthetic bacteria culture solution, culture at 25-40° C. for 8-15 days, separate the solid from the liquid, collect the solid-phase components, and obtain biological algae-removing granules.

[0040] In the invention, the polyvinyl alcohol porous carrier particles are dried and sterilized, and then mixed with the microorganism culture medium, adsorbed for 0.8-1.5 hours, and the solid is separated to obtain the adsorption carrier.

[0041] The invention sterilizes the dry polyvinyl alcohol porous carrier particle...

Embodiment 1

[0057] 1. Preparation of microbial culture medium:

[0058] Basic medium: 4 grams of glucose, 10 grams of ammonium chloride, 20 grams of disodium hydrogen phosphate, 30 grams of dipotassium hydrogen phosphate, 2 grams of magnesium chloride, 20 grams of sodium chloride, add distilled water to 10L, adjust the pH value to 7.3 after dissolving , sterilized at 121°C for 30 minutes, and cooled to room temperature.

[0059] Mineral elements: 2 grams of manganese sulfate, add distilled water to 10L, adjust the pH value to 7.3 after dissolving, sterilize at 121°C for 30 minutes, and cool to room temperature.

[0060] 2. Preparation of photosynthetic bacteria culture solution:

[0061] Get 1.8g photosynthetic bacteria agent (number of viable bacteria is 2.3×10 8 individual / g) dissolved in 18L of microbial culture medium to obtain. Described microorganism culture medium is glucose 4 grams, ammonium chloride 10 grams, disodium hydrogen phosphate 20 grams, dipotassium hydrogen phosphate...

Embodiment 2

[0067] Select a eutrophic landscape pool of 20 square meters and an average water depth of 0.7 meters, and spread 1 kg of the biological algae-removing particles prepared in Example 1. After 10 days of application, the turbidity of the landscape pond dropped from 8.42 NTU before application to 1.41 NTU, and the content of chlorophyll a dropped from 0.12 μg / L to 0.023 μg / L.

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Abstract

The invention relates to the technical field of environmental governance, and provides biological algae-removing particles. The biological algae-removing particles are prepared from microbial culturemedia and photosynthetic bacteria which are sequentially absorbed on polyvinyl alcohol porous carrier particles; each gram of biological algae-removing particles at least contain 1.0*10<9> photosynthetic bacteria. The biological algae-removing particles provided by the invention also have a good sustained-release effect on the basis of guaranteeing a good treatment effect per unit time, and has long effective duration. The number of effective viable bacteria stored for six months or less under the conditions of normal temperature and normal pressure is not lower than that of effective viable bacteria at the time of preparation, and the shelf life is longer. After the biological algae-removing particles provided by the invention are put into the eutrophic water body, the effect taking timeis shortened by one third or more in the same dosage compared with the commercially available liquid algae-removing particles. After the biological algae-removing particles provided by the invention are applied, the effective duration can last for 10 days or more, and the cost and workload of multiple addition of a biological algaecide can be reduced; after the biological algae-removing particlesare used, the turbidity and chlorophyll a content of the eutrophic water body are significantly reduced.

Description

technical field [0001] The invention relates to the technical field of environmental treatment, in particular to a biological algae-removing granule and a preparation method thereof. Background technique [0002] In recent years, with the increasing development and utilization of environmental resources by human beings, industrial and agricultural production has developed rapidly on a large scale, and a large amount of urban sewage, industrial wastewater and agricultural wastewater containing nutrients have flowed into waters, resulting in eutrophication of rivers and lakes. A prominent problem brought by globalization is the outbreak of algae, and there are a large number of reports both at home and abroad. The outbreak of algae in the water body not only reduces the efficiency of water resource utilization and destroys the ecological balance of the water body, but also brings great hidden dangers to public health due to the production of algae toxins. [0003] The eutroph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N11/084C02F3/34
CPCC02F3/34C12N11/08
Inventor 周忠雄仓一华金玉贇卢保中祝娟芝
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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