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Suspended filler and preparation method thereof

A technology for suspending fillers and materials, used in chemical instruments and methods, sustainable biological treatment, water/sludge/sewage treatment, etc. problem, to achieve the effect of strong hydrophilicity, reducing production cost, increasing roughness and specific surface area

Pending Publication Date: 2020-04-10
内蒙古圣清科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common polyethylene biofillers on the market have high filler cost due to high polyethylene content, poor hydrophilicity and bio-affinity, resulting in poor performance in terms of film-hanging speed, film-hanging amount, and tightness between film and filler. There are deficiencies, such as appropriate hydrophilic and bioaffinity modification, activated carbon and magnetic modification, it is expected to improve the mass transfer, film formation and water treatment performance of the filler
In addition, the impact strength of PVC is only 3-5kJ / m 2 , has the disadvantages of low impact strength and poor thermal stability, which lead to the aging of the filler and the short service life
At the same time, most of the fillers have low strength, soft materials, smooth surfaces, and float in water. Even under the action of external forces, they cannot form a full range of "fluidization" states, that is, they cannot completely react with the water in the pool.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1, the suspended filler of this example is composed of the following material components by weight percentage: 78% of high-density polyethylene, 9% of reclaimed rubber powder, 4% of fly ash, 2% of calcium carbonate, 1% of activated carbon, and 1% of magnetic powder %, polyvinyl alcohol 2%, titanium dioxide 1%, starch 2%; the preparation method of the suspension filler in this embodiment is: mix the above-mentioned material components and stir at high speed, add them to a screw granulator for granulation, and granulate The extruded granules are put into the screw extruder to extrude into a film, vacuum-shaped, cooled, drawn, and cut into shape. Before the material components are mixed, the magnetic powder and fly ash are crushed, and the mesh number after crushing is greater than 200 mesh. When vacuum setting, the vacuum degree is 30000Pa; when cooling, the cooling temperature is 20°C. The overall density of the suspended filler is 0.95g / cm 3 , its density is e...

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PUM

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Abstract

The invention discloses a suspended filler and a preparation method thereof, belongs to the technical field of sewage treatment, and is characterized in that compared with the prior art, the suspendedfiller is simple in formula, convenient in technological operation and easy for industrial production. The prepared suspended filler is prone to growth and membrane formation of a membrane, and especially has a catalytic oxidation effect on degradation-resistant organic wastewater, and the quality of produced water is better and more stable.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular, the invention relates to a suspended filler and a preparation method thereof. Background technique [0002] The moving bed biofilm reactor (MBBR, Moving Bed Biofilm Reactor) process is a new type of high-efficiency biological treatment process that absorbs the advantages of the traditional activated sludge process and biological contact oxidation process. By adding a certain amount of suspended filler to the reactor, the biomass and biological species in the reactor are increased, thereby improving the treatment efficiency of the reactor. The filler moves freely in the biochemical tank by means of aeration and stirring. When the sewage continuously passes through the reactor with the filler, it grows on the filler to form a biofilm, and the microorganisms on the biofilm multiply in large numbers. , N, P, etc. to carry out metabolism and play a role in purifying sewage. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/00
CPCC02F3/10C02F3/00Y02W10/10
Inventor 韩爱龙范丹
Owner 内蒙古圣清科技有限公司
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