Domestic wastewater treatment equipment

Abstract

The invention provides domestic wastewater treatment equipment. The domestic wastewater treatment equipment comprises a barrel body and a barrel cover, wherein a water inlet and a water outlet are formed in the barrel body; a purifying barrel is arranged in the barrel body; an annular gap is arranged between the purifying barrel and the barrel body; the water inlet and the water outlet are both communicated with the annular gap; the annular gap is internally filled with activated carbon particles; water guiding holes are densely formed in the purifying barrel; a rotating shaft is arranged in the purifying barrel; the rotating shaft is provided with stirring blades; an installation barrel is fixedly arranged on the barrel cover; the barrel cover is used for closing a barrel opening of the installation barrel; a baffle plate which can slide up and down is arranged in the installation barrel; an inner cavity of the installation barrel is divided into an upper cavity and a lower cavity bythe baffle plate; an air inlet nozzle and an air outlet nozzle are formed in the installation barrel; a motor is fixedly arranged at the lower side of the baffle plate; a through hole is formed in thebarrel cover; a spline groove is formed in the top wall of the rotating shaft; the lower end of a main shaft of the motor penetrates through the through hole and is inserted in the spline groove; themain shaft of the motor is provided with an external spline; O-shaped rings are arranged between the main shaft of the motor and the hole wall of the through hole; a liquid medicine inlet is formed in the side wall of the installation barrel. The domestic wastewater treatment equipment provided by the invention has the advantage that a purifying effect is good.

Description

technical field [0001] The invention belongs to the field of sewage treatment and relates to domestic sewage treatment equipment. 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. Therefore, domestic sewage must be treated before discharge. Generally, sewag...

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Problems solved by technology

Therefore, domestic sewage must be treated before discharge. Generally, sewage is discharged directly without treatment in family life. There are often peculiar smells in the pipeline, which causes inconvenience to daily life.

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