Multistage domestic sewage processing device convenient for collecting suspension

Abstract

The invention discloses a multistage domestic sewage processing device convenient for collecting suspension, relates to the field of environment protection, and mainly aims to solve the problem that in the prior art, suspension in domestic sewage cannot be processed by a conventional technology. The processing device comprises a box and a water inlet pipe for injecting domestic sewage into the box. An isolation pipe is arranged on the vertical center of the box. The lower end of the isolation pipe is fixed on the bottom of the inner cavity of the box. The upper end of the isolation pipe stretches out of the box. Through holes are evenly distributed in the lower part of the isolation pipe. The water inlet pipe penetrates the isolation pipe. A filter screen is fixed between the outer wall ofthe isolation pipe and the inner wall of the box. The filter screen is above the through holes. A mud discharge pipe is connected to a position, which is corresponding to the filter screen, of the bottom of the box. By setting the isolation pipe, the water inlet pipe penetrates the isolation pipe, which intercepts the suspension, thus the suspension can be discharged from the upper opening of theisolation pipe as the water level rises, and the suspension is conveniently collected.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a multi-stage domestic sewage treatment device which is convenient for collecting suspended matter. Background technique [0002] Domestic sewage is the wastewater discharged from residents' daily life, mainly from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and industrial enterprise toilets. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infectious viruses, etc.). The organic matter present in domestic sewage is extremely unstable and easily rots to produce stench. Bacteria and pathogens reproduce in large numbers using organic matter in domestic sewage as nutrients, which can lead to the spread of infectious diseases. The...

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Problems solved by technology

However, the device cannot handle large volumes of suspended solids well, which may easily lead to pipeline blockage, thereby affecting the normal operation of the device.

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