A kind of suspension type biological immobilization carrier filler and preparation method thereof

Abstract

The invention discloses a suspension biological immobilization carrier filler and a preparation method thereof, and the suspension biological immobilization carrier filler comprises a vacuum sphericalcore, a water-impermeable glass material layer externally covering the surface of the vacuum spherical core and a porous glass-ceramic composite layer externally covering the surface of the water-impermeable glass material layer. The preparation method comprises the following steps: preparing a carbon powder ball at a suitable particle size, covering the carbon powder ball with an illite powder,calcium carbonate heavy powder, borax powder, silica powder and raw montmorillonite powder mixture to form an intermediate layer, covering the outermost layer with a mixed sand powder material of theintermediate layer powder mixture, mullite sand, chaff powder and raw montmorillonite powder, and calcining at high temperature. The suspension biological immobilization carrier filler has the advantages that a film is easy to hang, the hung film is not easy to fall off, after hanging film, cost is low, and the suspension biological immobilization carrier filler is reusable, has no secondary pollution, controllable in aperture, not easy to block and long in service life.

Description

technical field [0001] The invention belongs to the technical field of suspended biological carrier fillers for sewage treatment, and specifically relates to a [0002] Suspension bio-immobilization carrier filler and its preparation method. Background technique [0003] The biological carrier filler is the place where microorganisms inhabit and reproduce, and is the carrier of the biofilm. The performance of the biological carrier filler will directly affect the growth, reproduction and shedding of microorganisms, which will ultimately affect the treatment effect of the biofilm reactor. The cost occupies a large proportion in the construction cost of the whole wastewater treatment system, so the selection of suitable fillers has important technical and economic significance for the restoration technology of polluted water bodies. [0004] At present, there are mainly three types of biological carrier fillers in the market: fixed, suspended and suspended. However, compared...

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Problems solved by technology

[0005] At present, the suspension packing made of polyethylene, polyvinyl chloride, polypropylene and other materials is mainly used, but these packings have the following shortcomings: 1) The packing material is hydrophobic, lacks bio-affinity, and the surface is smooth and microorganisms are not easy The effect of adhesion and film hanging is poor; 2) It is easy to cause clogging and reduce the activity of biofilm, thereby affecting the processing efficiency of the whole system; 3) The cost of use is high, and polyethylene or polypropylene fillers are organic materials with high prices. 4) It cannot be reused, and it will cause secondary pollution to the environment after being discarded. As the water quality discharge standards become more and more stringent, the existing fillers are difficult to meet the requirements, and there is an urgent need to develop new biological carrier fillers

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