Efficient anaerobic denitrification bioreactor

Abstract

The invention discloses an efficient anaerobic denitrification bioreactor. A water outlet is formed in a side wall of a tank body, the interior of the tank body is divided into five functional areas:a mixing area, a denitrification decarbonizing chamber, a decarbonizing conversion chamber, a precipitating area and a gas-water separating area; a water distributor is of a reversed V-shaped structure and is located in the mixing area in the bottom of the reactor; a primary three-phase separator and a secondary three-phase separator are separately located in the middle and upper parts of the reactor and are of reversed V-shaped gas collecting hood structures; an inner reflux pipe is coaxial with the tank body, the upper port is connected to the gas-water separator while the lower port is located in the mixing area; and effluent weir is located on the upper part of the secondary three-phase separator and is connected to the water outlet; the gas-water separator is located on the top of thetank body; an external circulating pump is located out of the tank body and communicates to the bottom of the side wall of the tank body and the upper part of the denitrification decarbonizing chamber through circulating pipes, separately. The efficient anaerobic denitrification bioreactor disclosed by the invention is cost-saving, has relatively high sludge concentration and high impact load resistance, and is high in denitrification efficiency.

Description

technical field [0001] The invention relates to the technical field of sewage treatment reactors, in particular to an efficient anaerobic denitrification bioreactor. Background technique [0002] With the continuous improvement of total nitrogen discharge standards for sewage treatment in my country, the total amount control of total nitrogen pollutants has also received increasing attention. The removal of total nitrogen pollutants in urban sewage and industrial wastewater is the focus and difficulty of water pollution prevention and reuse of sewage reclaimed water. [0003] High-concentration nitrate wastewater is a kind of wastewater with a high nitrogen load. Sludge digestion liquid, aerobic nitrification effluent and other industrial wastewater in sewage treatment plants can produce high-concentration nitrate, which not only increases the denitrification of sewage treatment plants The load also increases the operation and treatment costs, and the lack of organic carbon...

AI Technical Summary

Problems solved by technology

[0003] High-concentration nitrate wastewater is a kind of wastewater with a high nitrogen load. Sludge digestion liquid, aerobic nitrification effluent and other industrial wastewater in sewage treatment plants can produce high-concentration nitrate, which not only increases the denitrification of sewage treatment plants It also increases the cost of operation and treatment, and the lack of organic carbon sources will affect the denitrification effect and affect the quality of effluent water. Economically and effectively denitrification of high-concentration nitrate wastewater is an important task in sewage treatment

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