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Method for producing immobilized microorganism carrier using trable tubes

A technology of immobilized microorganisms and triple tubes, applied in the direction of immobilized on/in organic carriers, chemical instruments and methods, sustainable biological treatment, etc., can solve the problems of easy escape of microorganisms, lack of protective layer, insufficient mechanical strength, etc. problems, to achieve the effect of improving mass transfer performance, protecting against escape, and improving service life

Inactive Publication Date: 2005-05-04
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method of using a syringe to make an immobilized microbial carrier is simple and easy to operate, it also has some disadvantages: (1) the mechanical strength of the carrier is often not enough, and the service life can only be maintained for about 3 months; (2) the outside lacks protection layer, during use, microorganisms are also easy to escape

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  • Method for producing immobilized microorganism carrier using trable tubes
  • Method for producing immobilized microorganism carrier using trable tubes

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Embodiment Construction

[0008] According to the method of the present invention, microorganisms, sodium alginate and polymer material polyvinyl alcohol (PVA) mixed solution are added from the inlet 1 of the triple pipe, and then the polymer material PVA is added from inlets 2 and 3 respectively, and these additions pass through outlet 4 Drop into calcium chloride solution to polymerize into a carrier. Due to the effect of the triple tube, two layers of extremely thin PVA protective layers are formed on the outer surface of the carrier, which not only increases the mechanical strength of the carrier, but also prevents the escape of microorganisms. The carrier made by the method of the present invention has done the biological denitrification experiment of the aquaculture wastewater, the diameter of the carrier is 3-4mm, and 20% (by volume) carrier is added in the aquaculture wastewater, and the simulation test results show that the amount of ammonia nitrogen in the aquaculture wastewater The processin...

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Abstract

The present invention, method of making immobilized microbe carrier with ternary pipe, features that the ternary pipe has upper inlet for adding mixed liquid of microbe, soluble alginate and polymer material, other inlet for adding polymer material, and outlet for various added materials to be dropped into solution of calcium chloride or boric acid to form spherical carrier via polymerization. The ternary pipe includes three sleeved truncated cone pipes with upper inlet, left inlet communicated to the middle pipe, right inlet communicated to the outer pipe and lower end outlet. The immobilized microbe carrier thus produced has two thin protective PVA layers and thus has raised mechanical strength, raised mass transferring performance, no overflow of microbe, greatly increased service life and lowered culture waste water treating cost.

Description

technical field [0001] The invention relates to a material for waste water treatment, in particular to a carrier of immobilized microorganisms for biological denitrification in the treatment of aquaculture waste water. Background technique [0002] There are various methods for immobilizing microorganisms, mainly including surface adsorption immobilization method, cross-linking immobilization method, embedding immobilization method and self-immobilization method. The immobilized microorganisms used for biological denitrification in wastewater treatment are mainly embedding and immobilization methods, which are to embed microbial cells in a translucent polymer gel film or to diffuse microbial cells into a porous carrier. At this time, the small molecule substrates and reaction metabolites can freely enter and exit these carriers or gel membranes, but the microbial cells cannot escape, so that the carriers can maintain a multi-enzyme system and have little impact on cell activ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C12N11/04
CPCY02W10/10
Inventor 汝少国赵书云
Owner OCEAN UNIV OF CHINA