Upward galvanic electricity biological coupling water purification system and water purification method

Abstract

The invention discloses an upward galvanic electricity biological coupling water purification system and a water purification method. A biological filter material layer of the upward galvanic electricity biological coupling water purification system is positioned the upper part of a three dimensional particle electrode layer, the three dimensional particle electrode layer is connected to a biological filter material layer through a titanium net, the bottom of the three dimensional particle electrode layer is connected to a dissolved air water configuration chamber through a plastic porous plate mode, the dissolved air water configuration chamber is connected to an aeration apparatus and a backwashing apparatus, and the water current of a whole system flows from upper to down. The water purification method comprises the following steps: 1)mixing raw water in the dissolved air water configuration chamber with gas; 2)performing electrocatalytic oxidation; 3)physically filtering and intercepting; 4)performing aerobic biological treatment; and 5)discharging purified water. According to the invention, electrocatalytic oxidation; and aerobic biological treatment of the water purification system are coupled in a same reactor, each phase is mutually cooperated in the water treatment, under interacting of electrocatalytic oxidation, physical filtering and aerobic treatment, predetermined processing effect is reached, and effluent quality is stable.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to an upward flow electric biological coupling water purification system and a water purification method which can be used for sewage treatment. Background technique [0002] Biological method is one of the most mature processes used in wastewater treatment at present, and its pollutant removal effect is good. However, in the process of biological denitrification, it is often necessary to add organic matter as an electron donor, and the degradation rate of complex toxic and harmful pollutants is slow, the decomposition is not complete, and even the corresponding activity will be lost due to poisoning. The electrochemical method can quickly and efficiently oxidize refractory high-molecular-weight organic matter into low-molecular-weight organic matter or mineralize into carbon dioxide. It has strong processing capacity and simple operation, but has the disad...

AI Technical Summary

Problems solved by technology

However, in the process of biological denitrification, it is often necessary to add organic matter as an electron donor, and the degradation rate of complex toxic and harmful pollutants is slow, the decomposition is not complete, and even the corresponding activity will be lost due to poisoning.

The electrochemical method can quickly and efficiently oxidize refractory high-molecular-weight organic matter into low-molecular-weight organic matter or mineralize it into carbon dioxide. It has strong processing capacity and simple operation, but has the disadvantages of high energy consumption and high operating costs.

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