A kind of electrophilic biological carrier and its preparation method

Abstract

The invention discloses an electrophilic suspended bio-carrier and a preparation method thereof. The electrophilic suspended bio-carrier comprises the following raw materials in parts by mass: 100-250 parts of high-molecular interstitial substance, 2-15 parts of electrophilic functional material, 2-20 parts of auxiliary material 1; 2-20 parts of auxiliary material 2 and 1-10 parts of auxiliary material 3. The electrophilic suspended bio-carrier is formed by the raw materials through mixing, granulation, screw extrusion, cooling and cutting. The electrophilic suspended bio-carrier provided by the invention is convenient to prepare, and the density of the electrophilic suspended bio-carrier is controllable within 0.91-0.97 g / cm<3>; according to the property that microbes have negative electricity in water, the electrophilic suspended bio-carrier is mixed with the positively charged functional material to endow the surface of the electrophilic suspended bio-carrier with positive charge to enhance the compatibility between the microbes and the electrophilic suspended bio-carrier. The electrophilic suspended bio-carrier is favorable for apposition growth of microbes and easy for biofilm culturing, has a short period, large biomass, high ammonia nitrogen removal efficiency and good effluent quality; the sludge settling property is good, and equipment operation is free from a sludge blockage phenomenon; the service life of the electrophilic suspended bio-carrier is long and manual replacement and maintenance are not needed.

Description

technical field

[0001] The invention relates to an electrophilic biological carrier and a preparation method thereof, which can be used for the biological treatment of environmental pollutants, especially for the biological treatment of sewage. The invention belongs to the field of biological treatment of pollutants. Background technique

[0002] The place where microorganisms live - the research and development of biological carriers is the key to the development of fixed bed or moving bed biofilm reaction process. However, at present, most of the biocarriers produced in China are directly processed into polymer materials. Therefore, the biocarriers produced have slow film formation speed, poor biocompatibility, easy biofilm detachment, and low ammonia nitrogen removal efficiency. Reactor operation and treatment not effectively. Contents of the invention

[0003] The purpose of the present invention is to provide a surface electrophilic biological carrier capable of imp...