Energy-saving environment-friendly sewage treatment device used for cement plant

Abstract

The invention discloses an energy-saving environment-friendly sewage treatment device used for a cement plant, and belongs to the field of environmental friendliness. The energy-saving environment-friendly sewage treatment device used for the cement plant comprises a water inlet pipe and a coarse filtering tank, a fine filtering tank, an anaerobic tank, a first anoxic tank, a second anoxic tank, an aerobic tank, a membrane tank and a water outlet pipe which are sequentially communicated; the water outlet pipe is obliquely arranged, multiple electromagnets are arranged above the water outlet pipe at equal intervals, aeration devices are attracted under the electromagnets, the portions, under the aeration devices, of the water outlet pipe protrude downwards to form aeration device grooves, afiltering device is further arranged in the water outlet pipe, the filtering device is connected with the inner wall of the water inlet pipe through a sliding channel in the water outlet pipe in a sliding mode, switches is arranged on the sides, close to vertical water pipes, of the aeration device grooves, and multiple small holes are formed in the aeration device. Sewage is subjected to a series of sewage treatment processes, so that comprehensive purification treatment of the sewage is achieved, and the sewage purification degree is improved.

Description

technical field [0001] The invention relates to the field of environmental protection, and more specifically relates to an energy-saving and environment-friendly sewage treatment device for cement plants. Background technique [0002] The function of the aerobic pool is to allow the activated sludge to perform aerobic respiration, further decompose the organic matter into inorganic matter, and remove the pollutants. The function of the aerobic pool is to control the oxygen content and other requirements of the microorganisms. Only when microorganisms can perform aerobic respiration with the greatest benefit; anaerobic treatment uses the action of anaerobic bacteria to remove organic matter in wastewater, which usually takes a long time. The anaerobic process can be divided into hydrolysis stage, acidification stage and methanation stage ; [0003] The anoxic pool is relatively anaerobic and aerobic, and generally refers to a biochemical system in which the dissolved oxygen ...

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Problems solved by technology

The cement industry consumes a lot of water but does not require high water quality. It is mainly used for cooling the rotary kiln, washing the ground, washing the mill, etc. The production wastewater is generally discharged directly into the surface water body without treatment. Normal domestic production water

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