Domestic wastewater treatment method and device based on electric flocculation method

Abstract

The invention discloses a domestic wastewater treatment method and device based on an electric flocculation method, belongs to the technical field of wastewater treatment, and can realize the electrolysis on the domestic wastewater based on an electric flocculation technology. A vertical flow type bipolar mode is adopted; a high-frequency high-voltage pulse power supply is used for supplying powerto remove pollutants in the wastewater and the wastewater is ; polymerized to generate floccules to be separated from the wastewater; meanwhile, a breathing type coagulation aid assembly is innovatively introduced between the adjacent electrodes, the swinging characteristic is used as a driving force so that the non-equilibrium adsorption rod generates an action similar to breathing; mixed gas ofhydrochloric acid gas and oxygen is released into the wastewater during expiration, a plurality of micro-bubbles are generated, the oxidation effect is improved to greatly improve the flocculation efficiency, the passive film on the surface of the electrodes can be dissolved, the electrolysis effect of the electrodes is improved, floccules separated from wastewater can be adsorbed and recovered during air suction, and the treatment effect of the electric flocculation technology on the wastewater is significantly improved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, and more specifically, relates to a domestic wastewater treatment method based on an electrocoagulation method and a device thereof. Background technique [0002] my country is one of the countries with the poorest per capita water resources in the world. With the improvement of national living standards, domestic water consumption has increased significantly, of which laundry water accounts for about 20% to 40% of domestic water consumption, accounting for a particularly important proportion of domestic water consumption. Among them, washing water accounts for about 40% of laundry wastewater, and rinse water accounts for 60% of laundry wastewater. Laundry wastewater is a kind of domestic sewage with relatively light pollution. Its main pollutants are surfactants, oil stains, dust particles and various clothing fibers. However, if the laundry wastewater is directly discharged into ...

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Problems solved by technology

[0004] In the traditional electroflocculation process, the cations produced by the electrolysis of the electrodes are not easy to discharge, and are easy to adhere to the anode and continue to be oxidized, forming a passivation film, which hinders the electrolysis of the electrode, thus losing its effectiveness, and the continuous dissolution and consumption of the electrode will continue Reduce the efficiency of electrolysis, so the treatment effect of electrocoagulation in wastewater treatment is not good, and often requires supplementary treatment in subsequent processes, which undoubtedly increases the cost and difficulty of wastewater treatment

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