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MBBR magnetic suspended biological packing and preparation method thereof

A biological filler and magnetic technology, applied in chemical instruments and methods, biological water/sewage treatment, granular microbial carrier treatment, etc., can solve the problems of slow biofilm growth, poor microbial affinity, and small specific surface area. The effect of accelerating decomposition, strong microbial adhesion, and increasing specific surface area

Active Publication Date: 2016-12-14
SCIMEE TECH & SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of slow biofilm growth, short life, small specific surface area and poor microbial affinity in existing biological fillers, and provide a MBBR magnetic suspension biological filler and a preparation method thereof; the biological filler of the present invention is Adding fillers and magnetic diatomaceous earth to the traditional process formula to obtain a high-affinity product with a density closer to water while ensuring physical strength and service life, a specific surface area larger than similar products, a rougher surface, and rapid biofilm growth Sexual organic biofiller

Method used

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  • MBBR magnetic suspended biological packing and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] 1. Mixing: 88 parts by weight of polyethylene, 5 parts by weight of magnetic diatomite (prepared from diatomite with a fineness of 150 mesh and ferric oxide at a mass ratio of 1:0.03), 5 parts by weight Light calcium carbonate, 1.5 parts by weight of oxidized polyethylene, 1.0 parts by weight of paraffin, 0.6 parts by weight of organotin stabilizer, 0.5 parts by weight of sodium stearate and 0.5 parts by weight of titanium dioxide are mixed evenly, and then mixed with an open mill for 12 minutes , and then crushed and granulated to obtain filler mixture;

[0037] 2. Molding: heat and plasticize the filler mixture obtained in step 1 with a twin-screw extruder, and extrude it through different molds to obtain a semi-finished magnetic biofiller;

[0038] 3. Post-processing: Soak the semi-finished magnetic bio-filler obtained in step 2 with a hydrochloric acid solution with a mass fraction of 2% for 30 minutes, take it out, wash it with water, and dry it to obtain a finishe...

Embodiment 2

[0040] 1. Mixing: 85 parts by weight of polyvinyl chloride, 2 parts by weight of magnetic diatomite (prepared from diatomite with a fineness of 100 mesh and ferric oxide at a mass ratio of 1:0.02), 10 parts by weight 1 part by weight of talcum powder, 3 parts by weight of chlorinated polyethylene, 1.5 parts by weight of polyethylene wax, 0.3 part by weight of organotin stabilizer, 0.1 part by weight of silane coupling agent and 1 part by weight of carbon black are mixed uniformly, and then mixed with an open mill Refined for 5 minutes, then crushed and granulated to obtain filler mixture;

[0041] 2. Molding: heat and plasticize the filler mixture obtained in step 1 with a twin-screw extruder, and extrude it through different molds to obtain a semi-finished magnetic biofiller;

[0042] 3. Post-processing: Soak the semi-finished magnetic bio-filler obtained in step 2 with 5% hydrochloric acid solution, sulfuric acid solution, and nitric acid solution for 20 minutes, take it out...

Embodiment 3

[0044] 1. Mixing: 90 parts by weight of polypropylene, 10 parts by weight of magnetic diatomite (prepared from diatomite with a fineness of 200 mesh and ferric oxide at a mass ratio of 1:0.05), 2 parts by weight Parts of light calcium carbonate and talcum powder, 0.5 parts by weight of chlorinated polyethylene, 0.1 parts by weight of paraffin wax and polyethylene wax, 1 part by weight of organotin stabilizer, 1 part by weight of aluminum-titanium composite coupling agent and 0.1 part by weight of phthalocyanine blue After mixing evenly, knead with an open mill for 20 minutes, and then grind and granulate to obtain the filler mixture;

[0045] 2. Molding: heat and plasticize the filler mixture obtained in step 1 with a twin-screw extruder, and extrude it through different molds to obtain a semi-finished magnetic biofiller;

[0046] 3. Post-processing: Soak the semi-finished magnetic bio-filler obtained in step 2 with 1% hydrochloric acid solution, sulfuric acid solution, and ni...

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Abstract

The invention discloses MBBR magnetic suspended biological packing and a preparation method thereof. The magnetic suspended biological packing is prepared from, by weight, 85-90 parts of base materials, 2-10 parts of magnetic diatomite, 2-10 parts of filler, 0.5-3 parts of anti-aging agent, 0.1-1.5 parts of solubilizer, 0.3-1 part of stabilizer, 0.1-1 part of activator and 0.1-1 part of pigment. The magnetic suspended biological packing is high-affinity organic biological packing, wherein the density is closer to that of water while the physical strength and the service life are guaranteed, the specific area is larger than that of similar products, the surface is rougher, and a biofilm grows rapidly.

Description

technical field [0001] The invention relates to the field of biological fillers for sewage treatment, in particular to an MBBR magnetic suspension biological filler and a preparation method thereof. Background technique [0002] Biofilm technology is a sewage treatment process developed based on the activated sludge method. It has been greatly developed and applied because of its strong degradation ability, short contact time, small footprint and low investment. Its characteristic is that biological fillers are added in some process sections (generally aerobic microorganism treatment section) (all materials that can provide microorganisms with a fixed surface for attachment and growth are called biological fillers or biological carriers), and microorganisms in water can be deposited on biological fillers. The surface attaches, grows and reproduces, consumes nutrients in the water during microbial activities and converts them into their own cells, energy, water and carbon dio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/30
CPCC02F3/00C02F3/302C02F2003/001C02F2305/06
Inventor 王利军孙竟袁义泉王吉白
Owner SCIMEE TECH & SCI CO LTD