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Microbial immobilization technology used for biologically strengthened processing of industrial sewage

A technology of microbial immobilization and bio-augmentation, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve the effect of not easy to run off, tightly combined, reducing volume and floor space

Inactive Publication Date: 2013-12-04
胡滨 +2
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Problems solved by technology

However, how to apply bioaugmentation technology in specific operations still faces many technical problems, among which the retention and long-term vitality of highly efficient bacteria in biological treatment structures is a technical bottleneck that is currently difficult to break through

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  • Microbial immobilization technology used for biologically strengthened processing of industrial sewage

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Embodiment Construction

[0009] The high-efficiency degrading bacteria screened and cultivated for one or a certain type of refractory organic matter are expanded and cultivated to make a high-concentration bacterial suspension, and stored at low temperature to maintain their degradation activity. In practical application, according to the water quality and treatment requirements of industrial wastewater, a single high-efficiency degrading bacteria or a mixed group of degrading bacteria can be selected for bioaugmentation. The immobilization steps of single or mixed degrading bacteria are the same, and the examples are as follows: Dissolve 250 grams of PVA in about 1000 milliliters of water, add 1000 milliliters of high-concentration bacterial suspension, then add 20-25 grams of sodium alginate, stir well mixed. Add the cleaned immobilized carrier into the mixed solution to make it fully contact with the mixed solution, then immerse the immobilized carrier bonded with the mixed solution in a saturated...

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Abstract

Biologically strengthened processing of industrial sewage is carried out by adopting a microbial immobilization technology in order to improve the removal rate of organic materials, which are difficult to degrade, and thus the processing efficiency of industrial sewage is increased. Through double cross-linking of PVA-boric acid and sodium alginate-calcium chloride, high effective degrading bacteria, which have been screened and cultured, are fixed on carriers. (See attached drawing) The prepared immobilized microbes can be directly added into a biological processing structure, which is used for processing industrial sewage, for biological strengthening. The immobilized microbes, which are prepared by double cross-linking of PVA-boric acid and sodium alginate-calcium chloride, tightly bind the carriers, have the advantages of high mechanical strength, wear resistance, and can be repeatedly used for a long time. Immobilized high effective degrading bacteria in the biological processing structure can maintain very high biomass and biological activity, and are difficult to lose, so that the processing efficiency and load of the biological processing structure are improved, and the volume and occupied area of the biological processing device are reduced. Furthermore, the biological degrading ability of the added bacteria is also improved after the immobilization treatment.

Description

technical field [0001] The invention patent belongs to the field of industrial wastewater treatment. Screening and cultivating highly efficient degrading bacteria for the water quality of different industrial wastewater, and immobilizing the highly efficient degrading bacteria on a suitable carrier through the double cross-linking of PVA-boric acid and sodium alginate-calcium chloride. Using this microbial immobilization technology for bioaugmentation can improve the removal rate of refractory organic matter, so that the treatment efficiency of industrial wastewater can be improved. Background technique [0002] The rapid development of modern industry has greatly improved people's quality of life, but it has also brought many environmental problems. Due to the presence of refractory organic matter, the treatment of industrial wastewater poses severe challenges to traditional wastewater biological treatment structures, such as the activated sludge process. Many refractory ...

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Application Information

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IPC IPC(8): C02F3/34
Inventor 韩力平胡滨韩振江杨瑛李继刘书洁
Owner 胡滨
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