Three-dimension-electrode coupling iron-carbon microelectrolysis sewage treatment system

Abstract

The invention relates to a three-dimension-electrode coupling iron-carbon microelectrolysis sewage treatment system. The system comprises a direct-current regulated stabilized digital power supply, a physicochemical reaction device, a stainless steel plate, a graphite plate, iron-carbon filling, a peristaltic pump self-circulation device, a circulating sewage pipe connector, a power line, two sewage circulating pipes and a sewage outlet. The stainless steel plate and the graphite plate are arranged on the two sides inside the physicochemical reaction device which is connected with the positive pole and the negative pole of a power supply, stainless steel is the positive pole, and graphite is the negative pole; the iron-carbon filling is placed between the stainless steel plate and the graphite plate, and the iron-carbon particle size ranges from 8mm to 10 mm; one end of each sewage circulating pipe is connected with the sewage pipe connector of the peristaltic pump self-circulation device, and the other end of the sewage circulating pipe is led into the physicochemical reaction device. According to the system, by combining the external electrodes and the microelectrolysis filling to form a three-dimension-electrode, high-conentration organic wastewater hard to decompose is treated; compared with traditional electrochemistry and microelectrolysis methods, a more efficient treatment effect on sewage is achieved, and meanwhile the system is easy and convenient to operate, stable in operation and reasonable in cost.

Description

technical field [0001] The invention relates to a three-dimensional electrode coupled iron-carbon micro-electrolysis sewage treatment system, which belongs to the technical field of environmental protection. Background technique [0002] Advanced Oxidation Process (AOPs) is a new technology mainly used for high concentration of refractory organic pollutants. Its main features are (1) produce a large number of very active hydroxyl radicals (OH), and produce a large number of chain reactions; (2) OH can directly react with pollutants in wastewater without selectivity, and even mineralize into Carbon dioxide and water do not produce secondary pollutants; (3) The reaction can be carried out at normal temperature and pressure, and can be processed alone or combined with other reactions. According to the different oxidants and conditions used, it is generally divided into Fenton, Fenton-like oxidation, photochemical and photocatalytic oxidation, ultrasonic oxidation, electrochemi...

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Problems solved by technology

[0008] For some refractory organic matter, high COD, high NH 3 -N, waste water with high salt content, traditional biochemical treatment is difficult to meet the standard, and the requirements for influent water are higher

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