Rigid and flexible composite bio-fillers for deodorization by bio trickling filtration and method for preparing same

A biological trickling filter, rigid-flexible composite technology, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem of low treatment efficiency of biological trickling filter, unfavorable microbial reproduction and survival, and odor gas interception Low rate and other problems, achieve multiple attachment growth points, improve the defects of smooth and difficult to hang film, and avoid the effect of microbial malnutrition

Inactive Publication Date: 2008-12-31
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has good molding processability, it is easy to make fillers with complex shapes and large specific surface areas, but because these materials have smooth surfaces and no internal void structures, it is not conducive to the reproduction and survival of microorganisms, especially when dealing with odorous gases. Sometimes there are problems of difficulty in film formation and long period of film formation; at the same time, because these inorganic materials themselves cannot provide nutr

Method used

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  • Rigid and flexible composite bio-fillers for deodorization by bio trickling filtration and method for preparing same

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preparation example Construction

[0050] The preparation method of rigid-flexible composite biological filler for biological trickling deodorization equipment comprises the following steps:

[0051] 1) Use 0.5-5 parts by weight of dispersing lubricating liquid to moisten 1-10 parts by weight of slow-release control substances, and mix with 5-20 parts by weight of nutrients in a mixer; then use the remaining 0.5-5 parts by weight Wet 70 to 100 parts by weight of the polymer base material with a dispersing lubricating liquid of 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%% of the polymer base material, and add to the mixer together with the aforementioned mixture to stir evenly, then move the mixed mixture into the mixing hopper of the injection molding machine, and extrude through the filler mold Forming to obtain a rigid polymer skeleton 1;

[0052]2) Rigid polymer skeleton 1 and 40-60 parts by weight of polyether poly...

Embodiment 1

[0056] Take by weighing 5 grams of vegetable oil, make it moisten 10 grams of diatomite, and mix the moistened diatomite with 50 grams of bone meal in a blender, then weigh 5 grams of vegetable oil and mix 700 grams of polymer base polypropylene particles gram wetted, and added to the blender and stirred with the aforementioned mixture, and then moved the blended mixture into the mixing hopper of the injection molding machine, and extruded through the filler mold to obtain 380 rigid polymer skeletons 1 . The rigid polymer framework 1 is a three-dimensional multifaceted hollow spherical structure with a diameter of 25mm. Prepare 400 grams of polyether glycerol, 400 grams of organic isocyanate, 5 grams of stannous octoate, 5 grams of triethanolamine, 10 grams of cyclopentane, 5 grams of silicon-carbon bond copolymer and 300 ml of water, mix with rigid polymer skeleton 1 and Under high-speed stirring, it is quickly added to the molding box, and reactions such as chain growth, foa...

Embodiment 2

[0059] Take by weighing 50 grams of animal oil, make it moisten 100 grams of activated carbon, and mix the wetted activated carbon with 200 grams of chitosan in a blender, then weigh 50 grams of animal oil and moisten 1000 grams of polymer base polyethylene particles. Wet, and added to the blender and stirred with the aforementioned mixture, and then moved the blended mixture into the mixing hopper of the injection molding machine, and extruded through the filler mold to obtain 700 rigid polymer skeletons 1 . The rigid polymer framework 1 is a three-dimensional multifaceted hollow spherical structure with a diameter of 25mm. Prepare 600 grams of polyether propylene glycol, 600 grams of organic isocyanate, 25 grams of dibutyltin, 25 grams of triethylamine, 100 grams of dichloromethane, 50 grams of silicon-carbon bond copolymer and 500 ml of water, mix with rigid polymer skeleton 1 and speed Under stirring, it is quickly added to the molding box, and the chain growth, foaming, c...

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Abstract

The invention discloses a rigid-flexible combined biological filler for biological trickling filtration deodorizing equipment and a preparation method thereof; the biological filler is formed by combining a rigid macromolecular skeleton at the center and flexible biological carrier porous medium at the periphery. During preparation, sustained-release control matter is firstly moistened by dispersing and lubricating liquid and evenly mixed with nutritive matter in an agitator, then macromolecular base material is moistened by the rest dispersing and lubricating liquid, added in the agitator and evenly stirred together with the mixture, the evenly mixed mixture is transferred in an injection machine and is extrusion molded by filler dies to prepare the rigid macromolecular skeleton; the rigid macromolecular skeleton is blended with polyether polyol, organic isocyanate, catalyst, external foaming agent, foam stabilizer and water, stirred at high speed and added into a forming box to finish chain growth, foam formation, cross linking and solidifying reaction, thus obtaining the biological filler. The filler of the invention has wide source of raw materials, convenient and simple manufacturing procedure, low production cost, and good film-forming and deodorizing effects.

Description

technical field [0001] The invention relates to a biological filler used in malodorous gas treatment, in particular to a rigid-flexible composite biological filler for biological trickling deodorization equipment and a preparation method thereof. Background technique [0002] Odor pollution is one of the seven major environmental hazards in the world, and seeking reasonable treatment methods and control schemes has become a hot topic to be solved urgently in countries all over the world. Biological filter is a new technology for odor treatment that has received widespread attention in recent years. This technology has become the research topic of many countries because of its high treatment efficiency, no secondary pollution, simple equipment required, easy operation, low cost, and convenient management and maintenance. Hot spots are a development direction of odor control. Practice has proved that the method of microbial degradation of odorous pollutants has incomparable a...

Claims

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Application Information

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IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 丁颖吴伟祥陈英旭胡斌
Owner ZHEJIANG UNIV
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