Phenol-containing wastewater biological treatment apparatus

Abstract

The present invention discloses a phenol-containing wastewater biological treatment apparatus, wherein a dilution comprehensive tank, a pre-treatment first-stage BAF pool, a pre-treatment second-stageBAF pool and an effluent pool are sequentially connected through a front-section transmission pipeline, a catalytic oxidation pool, an oxidation stabilization pool, a post-biochemical BAF pool and aclear water pool are sequentially connected through a rear-section transmission pipeline, the effluent pool is connected to the interior of the catalytic oxidation pool through a water inlet pipeline,an ozone generator is connected to the interior of the catalytic oxidation pool through a gas pipeline, ozone catalytic particles comprise active alumina particles, copper oxide, polyethylene glycol,polyvinyl alcohol, titanium dioxide, hydroxypropyl cellulose and manganese dioxide, and a carrier comprises, by weight, high-density polyethylene, a polypropylene resin, slaked lime, Dow powder active carbon, light calcium carbonate, maleic anhydride, dicumyl peroxide, gelatin, chitin and magnetic powder. According to the present invention, with the phenol-containing wastewater biological treatment apparatus, the difficulty-degraded macromolecule organic matter is oxidized into the easily-biodegradable small molecule organic matter, and the final effluent is less than 30 mg/L, such that the combination process of the present invention is economical and efficient.

Description

technical field [0001] The invention relates to a biological treatment device for phenol-containing wastewater, belonging to the technical field of wastewater treatment. Background technique [0002] At present, the treatment methods for phenolic wastewater mainly include extraction method, adsorption method, chemical oxidation method, biochemical treatment method and so on. The extraction method consumes a lot of energy, and it is easy for the extractant to remain in the subsequent wastewater, which affects the subsequent treatment process; the adsorption method is simple to operate and is suitable for wastewater with low phenol content, but the one-time investment in equipment is large, and the regeneration of the adsorbent is difficult ; Although the chemical method can oxidize and remove phenol, the operating cost of direct oxidation is relatively high. Contents of the invention [0003] The purpose of the present invention is to provide a biological treatment device ...

AI Technical Summary

Problems solved by technology

The extraction method consumes a lot of energy, and it is easy for the extractant to remain in the subsequent wastewater, which affects the subsequent treatment process; the adsorption method is simple to operate and is suitable for wastewater with low phenol content, but the one-time investment in equipment is large, and the regeneration of the adsorbent is difficult ; Although the chemical method can oxidize and remove phenol, the operating cost of direct oxidation is relatively high

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