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Method for preparing composite silicate bacterium flocculant

A technology of silicate bacteria and composite flocculant, which is applied in bacteria, chemical instruments and methods, flocculation/sedimentation water/sewage treatment, etc., to achieve good flocculation and decolorization effect, remarkable decolorization effect and wide range of applications.

Inactive Publication Date: 2006-07-05
连宾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent application 01110311.5 discloses silicate bacteria, but so far, there is no technology to make silicate bacteria into microbial cells and then composite flocculants by biotechnology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Embodiment: at first, prepare silicate bacterial culture medium: get sucrose 5.0g, MgSO 4 ·7H 2 O 0.5g, CaCO 3 0.1g, Na 2 HPO 4 2.0g, FeCl 3 0.005g, illite powder (potassium feldspar or other potassium-containing mineral powder can also be used) 0.5g, after mixing, add 1000ml of distilled water, mix well, adjust the pH value to 7.0-7.3; add 20g of agar to this base material to obtain culture The solid culture medium of silicate bacteria, for later use; sterilized by conventional methods.

[0028] Second, prepare the microbial flocculant: take the activated silicate bacteria strain (test tube species), inoculate it into the silicate bacteria liquid culture medium by aseptic operation, and inoculate the culture medium after inoculation at 28~30°C Cultivate under certain conditions for 6 days (if the amount is large, you need to expand the cultivation step by step), a stable white flocculent substance is formed at the bottom of the bottle, which is the silicate bac...

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Abstract

The invention discloses a process for preparing silicate bacteria composite flocculating agent which comprises, preparing silicate bacteria culture medium, preparing silicate bacteria flocculating agent, preparing active mineral material and preparing silicate bacteria composite flocculating agent. And the method of use comprises charging silicate bacteria composite flocculating agent into adsorption tank, mixing with the sewage water to be treated, agitating homogeneously, the contaminant being adsorbed by the flocculating agent and flowing into sedimentation tank for natural sedimentation, thus realizing solid-liquid separation.

Description

technical field [0001] The present invention relates to a silicate bacterium and to a composite flocculant, in particular to a method for making a composite flocculant with a silicate bacterium. Background technique [0002] A flocculant is a substance that can coagulate and settle suspended particles that are not easy to settle in a liquid. The types of flocculants include: inorganic flocculants, organic synthetic polymer flocculants and biological polymer flocculants. Among the flocculants, inorganic flocculants based on aluminum salts, iron salts and their copolymers and synthetic organic polymer flocculants represented by polyacrylamide are widely used because of their good flocculation effects. However, the amount of inorganic flocculants is generally large, and it is easy to cause secondary pollution. Aluminum salts are toxic and will affect human health; iron salts will cause color in the treated water, and high concentrations of iron will a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F3/34C12N1/20
Inventor 连宾陈烨卢家暄朱立军
Owner 连宾
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