Modified biological filter packing

Abstract

The invention discloses modified biological filter packing. The suspended microbial packing comprises a hollow short pipe and a first concentric ring and a second concentric ring which are sequentially and concentrically arranged on the outer side of the hollow short pipe; the hollow short pipe, the first concentric ring and the second concentric ring are connected through connecting ribs, and the surface of the second concentric ring located on the outermost side is in a zigzag shape. The modified biological filter packing is prepared from, by weight, high density polyethylene, slaked lime, Dow powdered activated carbon, light calcium carbonate, maleic anhydride, gelatin, chitin, ferromagnetic oxide powder and manganese zinc ferrite. The modified biological filter packing is high in film formation speed, not prone to fall off, high in treatment efficiency and suitable for treatment of low-concentration organic matter and ammonia nitrogen in sewage and low-concentration organic wastewater and has the very high adsorption strength.

Description

technical field [0001] The invention relates to a modified biological filter filler, which belongs to the sewage treatment in the discipline of environmental engineering [0002] technology field. Background technique [0003] With the continuous development of cities, the emergence of emerging industries has accelerated the deterioration of environmental pollution. In particular, the state has stepped up efforts to control industrial pollution and raised sewage discharge standards. It is difficult for existing treatment technologies to meet the requirements of the new standards. Therefore, my country's water treatment industry is also accelerating the development and research of new technologies according to the development needs of the environment to meet the increasingly severe environmental requirements. In recent years, biofilm technology has been used in sewage treatment to meet the requirements of sewage upgrading, so as to alleviate the pressure of water treatment ...

AI Technical Summary

Problems solved by technology

At present, the commonly used fillers in China are fixed fillers such as honeycomb fillers, soft fillers, semi-soft fillers, and composite fillers. However, these fillers often encounter problems such as clogging, agglomeration, and hardening during use, which affects the biological treatment effect.

And the above-mentioned fillers need to be installed on the auxiliary bracket, which causes many inconveniences such as filler installation and replacement.

[0004] The filler products of the prior art have certain problems in practical application. Due to the small specific surface area, poor hydrophilicity and bio-affinity, there are problems in the speed of film formation, the amount of film formation, and the tightness between the film and the filler. Insufficient; Secondly, due to the low pollution load, the growth of microorganisms is limited and the growth rate is slow, which also makes it difficult to biofilm

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