Hydrophilic biological carrier for wastewater treatment

Abstract

The invention discloses a hydrophilic biological carrier for wastewater treatment. The hydrophilic biological carrier comprises a hollow stub pipe, a first concentric ring and a second concentric ring, wherein the first concentric ring and the second concentric ring are sequentially arranged on the outer side of the hollow stub pipe in a concentric mode. The hydrophilic biological carrier is prepared from, by weight, 65-75 parts of high density polyethylene, 5-15 parts of slaked lime, 5-20 parts of Dow powdered activated carbon, 6-10 parts of light calcium carbonate, 3-5 parts of maleic anhydride, 0.2-0.6 part of dicumyl peroxide, 1.5-3 parts of gelatin, 1-2 parts of chitin and 0.5-2 parts of magnetic powder. The density of modified MBBR suspended biological stuffing is 0.96-0.98 g / cm3. The hydrophilic biological carrier is high in biofilm culturing speed, not prone to disengagement, high in treatment efficiency, and suitable for treatment of low-concentration organic matter and ammonia nitrogen in sewage and low-concentration organic wastewater. The biological stuffing has extremely high hydrophilia and biocompatibility and has high adsorption strength on a biological film.

Description

technical field [0001] The invention relates to a hydrophilic biological carrier used for wastewater treatment, 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 p...

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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