Sewage treatment equipment

Abstract

The invention discloses sewage treatment equipment. The equipment includes a shell equipped with universal wheels, and the inside of the shell is in connection with a precipitation device, a filteringdevice, a sterilization device and a purification device successively. Specifically, the precipitation device includes a settling tank, a motor and a rotating shaft, the motor is fixedly disposed atthe top of the shell, the rotating shaft is arranged in the settling tank and has one end penetrating the settling tank and fixedly connected to a motor output shaft through a coupling, and a plurality of stirring blades are welded and fixed to the surface of the stirring shaft. The equipment can move to a designated working area through the universal wheels, a preliminary filtration device is putinto sewage through a water duct, a first water pump works to pump sewage into the settling tank, when the water level in the settling tank reaches a maximum value set by a water level sensor, the water level sensor transmits the signal to a single chip microcomputer, the single chip microcomputer controls the first water pump for stopping working, at the moment, an appropriate amount of alum isadded through a feed chute, and hydrolyzed alum and impurities in the sewage are adsorbed together to form flocs.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to sewage treatment equipment. Background technique [0002] Human activities will discharge a large amount of industrial, agricultural and domestic waste into the water, polluting the water body. At present, more than 420 billion cubic meters of sewage are discharged into rivers, lakes and seas every year in the world, polluting 5.5 trillion cubic meters of water. Fresh water, which is equivalent to more than 14% of the total global runoff, is becoming more and more serious. Water pollution has posed a major threat to human survival and safety, and has become a major obstacle to human health, economic and social sustainable development. According to the survey of world authoritative organizations, In developing countries, 80% of various diseases are spread by drinking unsanitary water, and drinking unsanitary water causes at least 20 million deaths in the world every year, ...

AI Technical Summary

Problems solved by technology

[0002] Human activities will discharge a large amount of industrial, agricultural and domestic waste into the water, polluting the water body. At present, more than 420 billion cubic meters of sewage are discharged into rivers, lakes and seas every year in the world, polluting 5.5 trillion cubic meters of water. Fresh water, which is equivalent to more than 14% of the total global runoff, is becoming more and more serious. Water pollution has posed a major threat to human survival and safety, and has become a major obstacle to human health, economic and social sustainable development. According to the survey of world authoritative organizations, In developing countries, 80% of various diseases are spread by drinking unsanitary water, and drinking unsanitary water causes at least 20 million deaths in the world every year, so water pollution is called "the world's number one killer". , in the river water and sewage purification treatment, various forms of water treatment equipment are playing an important role, but the general water purification equipment is often difficult to meet drinking water standards

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