Immobilized filler, preparation method thereof as well as photosynthetic bacterium-protozoa sewage treatment device and method based on filler

A sewage treatment method and protozoan technology, applied in the direction of biological water/sewage treatment, sustainable biological treatment, neutralized water/sewage treatment, etc., can solve the problems of water treatment efficiency decline, reduce solid waste production, avoid The effect of loss and increase of biomass concentration

Active Publication Date: 2021-12-28
NANJING INNOVATION CENT FOR ENVIRONMENTAL PROTECTION IND
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  • Application Information

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Problems solved by technology

[0006] The present invention aims at the technical problem that it is difficult to effectively fix the protozoa in the water treatment process in the prior art, which leads to a decrease in water treatment efficiency, and provides an immobilized filler and a preparation method thereof and a photosynthetic bacteria-protozoa sewage treatment method based on the filler , through immobilized filler amylase etching technology, effectively cover the above technical problems

Method used

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  • Immobilized filler, preparation method thereof as well as photosynthetic bacterium-protozoa sewage treatment device and method based on filler

Examples

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Effect test

Embodiment 1

[0038] Put 40g of sodium alginate into 1L of purified water, heat to 50°C to dissolve completely, add 10mL of soluble starch solution with a concentration of 100g / L, and stir well to mix evenly. Add the mixed solution dropwise to 5% calcium chloride solution to form granule gel granules, let it soak for 2 hours, then filter the gel granules, wash them thoroughly with purified water, transfer them to 1% amylase solution, and Take it out after soaking for 5 hours. Add the treated gel particles into 0.5% LB medium according to the amount of 800g / L, according to 10 9 / mL, 10 5 / mL, 10 6 / mL of photosynthetic bacteria, bell worms and ciliates were added respectively, aerated for 2 weeks, and photosynthetic bacteria-protozoa immobilized fillers were prepared.

[0039] The photosynthetic bacteria-protozoa immobilized filler is added to the treatment area 110 at a volume ratio of 1 / 5, and the bottom of the treatment area 110 is aerated to control the dissolved oxygen concentration ...

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Abstract

The invention discloses an immobilized filler, a preparation method thereof as well as a photosynthetic bacterium-protozoa sewage treatment device and method based on the filler, and belongs to the technical field of wastewater treatment. According to the immobilized filler disclosed by the invention, a starch filling and amylase etching method is adopted, so that the immobilized filler has certain mechanical strength and a substance exchange function, the internal pore diameter is large enough, a good planting space is provided for protozoa, and the protozoa can be massively propagated. According to the sewage treatment method, protozoa can prey and digest a large amount of excess sludge in the treatment area, the yield of the excess sludge in the treatment area is reduced, and the solid waste output is reduced.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, more specifically, to an immobilized filler and a preparation method thereof, and a photosynthetic bacteria-protozoan sewage treatment device and method based on the filler. Background technique [0002] Domestic sewage is waste water rich in a large amount of organic matter, nitrogen, phosphorus and other nutrients produced in human activities. If it is discharged into the environment without proper treatment, it will easily cause black and smelly natural water bodies and cause environmental pollution. The traditional method of treating domestic sewage is the aerobic biological method, which has the characteristics of simple treatment process and low operating cost, but this method will generate a large amount of excess sludge and form new solid waste. The invention provides a method for treating polluted river water by using a photosynthetic bacteria-protozoa treatment area, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/32C02F7/00F21V33/00
CPCC02F3/34C02F3/32C02F7/00F21V33/00C02F2003/001C02F2209/22C02F1/66C02F2209/06C02F2209/02C02F2209/44Y02W10/10
Inventor 姜笔存陶胡进杨军王强万成卜志岸
Owner NANJING INNOVATION CENT FOR ENVIRONMENTAL PROTECTION IND
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