Hydrophilic active biological film suspend carrier and method for making the same

Abstract

The invention discloses a suspended carrier of a hydrophilic and active biological film as well as the manufacturing method thereof. The carrier substrate adopts polyethylene or polypropylene resin, and hydrophilic polymeric surfactant, biological enzyme accelerator and microbial affinant mixing granulations are also added, thereby being molded by extrusion. The carrier is characterized in that firstly, the carrier has good hydrophilicity and mass transferring property; secondly, the carrier has the characteristics of catalyzing the oxidation reaction and the reduction reaction; thirdly, the carrier has microbial affinity; fourthly, the carrier has the characteristics of large specific surface area, high biological film cultivation speed and high load impact resistance; and fifthly, the manufacturing cost is low, and the processing technology is simple.

Description

technical field

[0001] The invention relates to a hydrophilic active biofilm suspension carrier suitable for sewage biological (aerobic) treatment process in the field of environmental protection and a manufacturing method thereof. technical background

[0002] There are many types of biological (aerobic) methods in the sewage treatment process, such as: activated sludge method, AB method, SBR method, MSBR method, oxidation ditch method, contact oxidation method, biofilm moving bed method, etc., according to the growth of microorganisms Generally speaking, it can be divided into two types: growth in suspension state and growth in attached state. The former is represented by the activated sludge method, and microorganisms grow in suspension in the form of activated sludge in the aeration tank; the latter is represented by the biofilm moving bed method, and the microorganisms are fixed on the surface of the carrier in the form of biofilm in the aeration tank Grow in an attach...

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