Device and method for treating sewage

Abstract

The invention discloses a sewage treatment device and method, comprising a sewage processor, a magnetic field generator, and a sewage secondary filtering device. The upper end of the sewage processor is provided with a water inlet, the side is provided with a water outlet, and the aeration device is arranged on the sewage In the processor, there is a magnetic field generator in the sewage processor. The magnetic field generator includes a magnetic field tester, an iron cover, a power supply, a transformer, a circuit board, a spiral coil and a membrane assembly. The spiral coil is wound around the periphery of the membrane assembly. The membrane assembly The upper end of the magnetic field tester is provided with threads, and multiple membrane modules are connected to a circuit board through threads, the circuit board is connected to the transformer, the transformer is connected to the power supply, the induction end of the magnetic field tester extends into the sewage processor, and the power supply controls the spiral coil through the transformer. current strength and direction. The invention applies a weakly changing magnetic field to the microorganisms in the activated sludge area, and biochemical reactions and magnetic biological effects occur in the reaction area at the same time, thereby strengthening the degradation of organic matter by the microorganisms.

Description

technical field [0001] The invention relates to the field of industrial wastewater purification, in particular to a sewage treatment device and method. Background technique [0002] Food industry wastewater is usually treated biologically. However, temperature has an important impact on the growth, reproduction, metabolism, species distribution and population number of microorganisms, which in turn affects the efficiency of sewage treatment. In addition, temperature has a great influence on activated sludge performance and flocculation viscosity of wastewater. [0003] With the increasingly stringent sewage treatment standards, traditional food industry wastewater treatment methods cannot meet the requirements. Especially under low temperature conditions, the metabolic capacity of microorganisms is reduced, and the rate of chemical reactions is also reduced. Consequently, the efficiency of biological treatment of wastewater is also reduced. [0004] The traditional activ...

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Problems solved by technology

[0004] The traditional activated sludge method is widely used in sewage treatment, mainly because activated sludge contains a large number of active microorganisms, which can quickly and effectively remove organic matter in sewage and have good nitrogen and phosphorus removal effects, but the traditional Activated sludge process sludge is mixed in a fluid state in sewage

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