Method for preparing magnetic filling with biological affinity, hydrophilicity and activity for water treatment

A water treatment and biological technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of difficulty in external magnetic field, bulky, and limited, and improve the efficiency of biological treatment. , the effect of high biological activity and enhanced mass transfer performance

Inactive Publication Date: 2004-08-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, all reports on magnetic field-enhanced biodegradation are limited to laboratory research, which is mainly due to the fact that the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: take polypropylene particle as base material (3680 grams), take by weighing white mineral oil (25 grams), vegetable oil (15 grams) and magnetic powder (210 grams) is wetted, then it is mixed with polyvinyl alcohol in mixer (110 grams) and the mixture of starch (100 grams) are evenly mixed, moved into the mixing bucket of the injection molding machine, then add white mineral oil (30 grams) and vegetable oil (30 grams), after mixing well, injection molding is made, and 70 fillers are obtained , the specific gravity of the prepared filler is about 0.94, and then the prepared filler is moved into a magnetic field of about 5000 gauss. After magnetization, the prepared bio-affinity hydrophilic active magnetic seed filler has a permanent weak magnetic field of 10-30 gauss. A plurality of bio-affinity hydrophilic active magnetic seed fillers and ordinary polypropylene plastic fillers of the same shape and specification were placed in the sewage aerobic biological t...

Embodiment 2

[0036] Embodiment 2: take polypropylene particle as base material (3100 grams), take by weighing white mineral oil (40 grams), vegetable oil (35 grams), will contain the magnetic powder (300 grams) of rare earth strong magnetic particles and calcium carbonate powder (60 grams) grams) of the mixture, and then mix it with a mixture of polyvinyl alcohol (250 grams), calcium alginate (100 grams) and starch (180 grams) in a blender, move it into the mixing bucket of the injection molding machine, and then add White mineral oil (70 grams), vegetable oil (65 grams), injection molding after mixing well, the specific gravity of prepared filler (70) is about 0.98, then the prepared filler is moved in the magnetic field of 10000 gauss, after magnetization, The prepared bio-affinity hydrophilic active magnetic seed filler has a permanent weak magnetic field of 30-60 gauss. The CODcr measurement result shows, uses the water treatment system of bio-affinity hydrophilic active magnetic seed ...

Embodiment 3

[0037] Embodiment 3: take polypropylene particle as base material (3400 grams), take by weighing white mineral oil (35 grams), vegetable oil (25 grams), will contain the magnetic powder (250 grams) of rare earth strong magnetic particles and gac powder (45 grams) ), then mix it with a mixture of polyvinyl alcohol (180 grams) and calcium alginate (155 grams) in a blender, move it into the mixing bucket of the injection molding machine, and then add white mineral oil (60 grams) 1. Vegetable oil (50 grams), injection molding after mixing, the specific gravity of the prepared filler (70) is about 0.96, then the prepared filler is moved into the magnetic field of 8000 gauss, after magnetization, the prepared biological affinity The water active magnetic seed filler has a permanent weak magnetic field of 20-50 gauss. The CODcr measurement result shows, uses the water treatment system of the bio-affinity hydrophilic active magnetic seed filler that the present invention makes, and th...

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Abstract

The present invention relates to a preparation method of biological affinity hydrophilic active magnetic seed filling material for treating water. It is characterized by that said method includes the following steps: mixing biological affinity substance, hydrophilic substance, magnetic powder and active carbon or magnetic powder and calcium carbonate in the high-molecular base material, and adding dispersion lubricating agent, uniformly stirring them, placing them into injection moulding machine, utilizing filling mould to make extrusion moulding and magnetizing, so as to obtain the invented filling material. It has biological affinity and hydrophilicity, at the same time can induce microbial activity and enzyme activity, and can raise oxygen utilization rate in water and water treatment efficiency.

Description

(1) Technical field: [0001] The invention relates to a preparation method of a microbial carrier (ie, biological filler) for biological treatment of industrial waste water or domestic sewage, in particular a preparation method of a bio-affinity hydrophilic active magnetic seed filler for water treatment. The biological filler prepared by the method of the invention not only has biological affinity and hydrophilicity, but also can stimulate microbial cell activity and improve oxygen utilization rate, and is especially suitable for biofilm aerobic biodegradation treatment of waste (sewage) water. (2) Background technology [0002] Biofill is one of the cores of biofilm water treatment technology. At present, the types of biofill are classified according to the commonly used installation methods into fixed type (mainly honeycomb and corrugated hard filler), suspension type (including soft filler, semi-soft Packing, combined packing and elastic pack...

Claims

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Application Information

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IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 程江张凡皮丕辉文秀芳杨卓如
Owner SOUTH CHINA UNIV OF TECH
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