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Method for treating cyanobacteria in lakes by using loofah sponge to immobilize photosynthetic bacteria or compound microorganisms

A technology of compound microorganisms and photosynthetic bacteria, which is applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of high killing efficiency of cyanobacteria, low preparation cost, and time-consuming spraying, etc. Achieve the effects of high killing cyanobacterial efficiency, low preparation cost and wide range of sources

Active Publication Date: 2013-04-24
佛山市顺德区活宝源生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the inconvenient transportation of liquid bacteria in the process of treating lake cyanobacteria by photosynthetic bacteria or composite microorganisms, and time-consuming throwing; and the bacteria are easily washed away by running water in the water body, and the concentration is easily diluted, which leads to the utilization of eutrophic water treatment Due to the shortcomings of low efficiency and inconspicuous effect, a method for treating lake cyanobacteria with photosynthetic bacteria or compound microorganisms immobilized on loofah is invented. The method is low in preparation cost, easy to operate, and high in killing cyanobacteria.

Method used

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  • Method for treating cyanobacteria in lakes by using loofah sponge to immobilize photosynthetic bacteria or compound microorganisms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Wash the loofah, place it in a 0.2 MPa high-temperature sterilization tank and seal it for 2 hours. Take out the loofah after sterilization treatment, soak in 2% sodium alginate; 2% cyclodextrin; 2% K 2 HPO 4 in the mixed solution. After soaking, take it out and air-dry it for 5 hours, then soak it in 2.0×10 9 ~3.1×10 10 cfu / mL of photosynthetic bacteria for 6 hours; take them out and string them together with ropes, fix them on driftwood, put them in eutrophic water or lakes, absorb phosphorus and nitrogen in the water, inhibit and kill cyanobacteria, and achieve governance purpose of polluting lakes. After 5 days, shake off its surface to adsorb dead cyanobacteria. When the algaecidal effect of the loofah carrying photosynthetic bacteria decreases, carry out the photosynthetic bacteria according to step (3) again.

[0018] Get 1 loofah that is loaded with photosynthetic bacteria obtained in the present embodiment 1 and drop into 5 m 3 In the lands...

Embodiment 2

[0021] Example 2: Wash the loofah, put it in a 0.5 MPa high-temperature sterilization tank and seal it for 5 hours; take out the sterilized loofah, soak it in 2% sodium alginate; 2% cyclodextrin; 2% K 2 HPO 4 in the mixed solution. After soaking, take it out and air-dry for 3 hours, and then soak it in a composite microbial strain composed of photosynthetic bacteria, yeast and nitrifying bacteria with a ratio of 1~5:0~0.5:0.05~0.2 (the number of bacteria is 2.0×10 9 ~3.1×10 10 cfu / mL) solution for 3 hours; take it out and string it up with ropes, and fix it on driftwood, and put it in a eutrophic lake. After standing for a few days, it can absorb phosphorus and nitrogen in the water and kill blue-green algae. To achieve the effect of controlling polluted lakes. After 10 days, shake off its surface to adsorb dead blue-green algae. When the algaecidal effect of the loofah carrying photosynthetic bacteria decreases, carry out the photosynthetic bacteria according to step (3...

Embodiment 3

[0022] Example 3: Wash the loofah, place it in a 0.1 MPa high-temperature sterilization tank and seal it for 1 hour. Take out the loofah after sterilization, soak in 1% sodium alginate; 0.5% K 2 HPO 4 in the mixed solution. After soaking, take it out and air-dry it for 2 hours, and then soak it in a composite microbial strain composed of photosynthetic bacteria, yeast and nitrifying bacteria with a ratio of 1~5:0~0.5:0.05~0.2 (the number of bacteria is 2.0×10 9 ~3.1×10 10 cfu / mL) solution for 4 hours; take it out and string it up with a rope, and fix it on driftwood, put it in the eutrophic lake, kill blue-green algae, and control the polluted lake. Shake off its surface after 7 days to adsorb dead cyanobacteria. When the algaecidal effect of the loofah carrying photosynthetic bacteria decreases, carry out the photosynthetic bacteria according to step (3) again.

[0023] Get 20 loofahs that are loaded with composite microorganisms that are obtained in Example 3 and put...

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Abstract

The invention relates to the water quality treatment of eutrophic lake, belongs to the technical field of environmental protection, and in particular relates to a preparation method for a biological material loofah sponge immobilized with photosynthetic bacteria or compound microorganisms. The method comprises the following steps: step 1) high temperature sterilization treatment of the loofah sponge: washing the loofah sponge and placing the loofah sponge in a high temperature sterilization tank for closed high temperature sterilization for 1 to 3 hours, to kill infectious microbes in the loofah sponge; step 2) the surface treatment of the loofah sponge; step 3) soaking the loofah sponge after surface treatment in a prepared photosynthetic bacterial or compound microorganism solution for 1 to 6 hours, taking out and sealing for conservation at a temperature of -5 ~ 20 DEG C, and putting the prepared loofah sponge in eutrophic lakes according to the need; and step 4) fixing the prepared loofah sponge with immobilized photosynthetic bacteria or compound microorganisms on driftwoods to suspend in water; after 3 to 10 days, shaking off dead cyanobacteria attached on the surface of the loofah sponge; and if the cyanobacteria-killing effect of loofah sponge decreases, taking the loofah sponge out of water, and performing regeneration according to step 3). According to the invention, the loofah sponge prepared by the method has characteristics of low preparation cost, easy operation, and high efficiency in killing cyanobacteria.

Description

technical field [0001] The invention relates to the treatment of eutrophic lake water quality, and belongs to the technical field of environmental protection, in particular to a preparation method for immobilizing photosynthetic bacteria or composite microorganisms with biological material loofah. Background technique [0002] At present, the whole world is facing the enormous pressure of increasingly serious water pollution. According to statistics, more than 80% of the lakes in our country are polluted, and many lakes have not reached Class III water quality standards. Due to the continuous expansion of urban scale, population growth and rapid economic development, large and medium-sized cities in China and their surrounding lakes, the discharge of a large amount of sewage and wastewater in industrial and agricultural production, and the rapid increase of a large number of nutrients, especially P, N and other elements, As a result, the eutrophication problem in the lake w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
Inventor 程先忠彭元童忠泽陈红梅张瑞华
Owner 佛山市顺德区活宝源生物科技有限公司
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