A kind of oily wastewater treatment method and equipment

Abstract

The invention provides equipment for processing oily wastewater. The equipment comprises a reaction device, a feed pump, an aerating device, a main anode, a main cathode, a porous particle electrode and a power supply, wherein the reaction device is internally provided with a clapboard, the clapboard divides the reaction device into a lower cavity body and an upper cavity body, a porous support plate is arranged in the middle of the clapboard, the bottom of the lower cavity body is connected with the feed pump, a No.1 oil discharge port is arranged at the top of the lower cavity body, a filter element vertically penetrating through the lower cavity body is arranged in the center of the lower cavity body, the aerating device comprises an air pump and an aerating plate which are sequentially connected, the aerating plate is arranged at the bottom of the filter element, the main anode, the main cathode and the porous particle electrode are all arranged in the upper cavity body, the main anode and the main cathode are connected with the power supply, an exhaust port is arranged at the top of the upper cavity body, a No.2 oil discharge port is arranged at the upper part of the upper cavity body, a drainage port is arranged at the lower part of the upper cavity body, and the No.1 oil discharge port and the No.2 oil discharge port are respectively connected with a reclaimed oil storing device. The equipment has a simple and compact structure, occupies small area, is convenient to run and manage, and has high processing effect and high processing efficiency.

Description

technical field [0001] The invention belongs to the field of water treatment equipment, and in particular relates to an oily waste water treatment equipment, and also relates to a water treatment method using the equipment. Background technique [0002] With the economic growth and the rapid development of industry, oily wastewater pollution has become the focus of environmental problems and has attracted great attention from all walks of life. There are many sources of oily sewage, all of which are oil-water dispersion systems, which can be roughly divided into four types: floating oil, dispersed oil, emulsified oil, and dissolved oil. Its harm is mainly manifested in the serious impact on ecosystems, plants, soil, and water bodies. The discharge of oily wastewater into natural water bodies poses a major threat to the aquatic ecological environment. Oily wastewater can soak into the pores of the soil to form an oil film, resulting in blockage, so that air, water and ferti...

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Problems solved by technology

The traditional oil-water separation technology relies on gravity and physical filtration. It only has a good treatment effect on floating oil and dispersed oil, but has a poor removal effect on emulsified oil and dissolved oil with small oil particles. Using this technology alone, the treatment The quality of effluent water is difficult to meet the discharge standard

Although ultrafiltration membrane filtration, reverse osmosis and MBR and other membrane treatment systems can effectively remove oil, TOC and salt in wastewater, the emulsification degree of oily wastewater increases, which is likely to cause serious membrane fouling and reduce membrane flux. Membrane regeneration, and the removal effect of COD and BOD is not up to standard, which limits its industrial application

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