Sewage treatment system and process

Abstract

The invention discloses a sewage treatment system which comprises a dust remover, a water mist device, a sealing chamber, a waste heat recoverer, a first condenser, an air heat exchanger, a starting heater and a fan, wherein the water mist device is communicated with a sewage source; the sealing chamber is sealed and partitioned into an evaporation cavity as well as an air inlet cavity and an air return cavity which are communicated with the evaporation cavity; a water mist nozzle of the water mist device is arranged at the evaporation cavity; the dust remover; the waste heat recoverer and the first condenser are sequentially arranged at the air inlet cavity; a heat exchange medium cavity of the first condenser is communicated with a sewage pipeline of the water mist device; a heat exchange pipe of the waste heat recoverer penetrates through the air inlet cavity for communicating the air return cavity with the evaporation cavity; the air heat exchanger is used for communicating the air inlet cavity with the air return cavity; the starting heater is arranged at the evaporation cavity and used for hating water mist in the evaporation cavity when the sewage treatment system is started; the fan is arranged at the sealing chamber and used for driving gas to flow. After the sewage treatment system is started, the water mist is heated into a heat source of higher-temperature wet air through absorbing heat energy in the air, and the energy consumption of sewage treatment can be reduced. The invention also discloses a sewage treatment process.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, more specifically, to a sewage treatment system and process. Background technique [0002] In recent years, with the development of science and technology and the progress of society, environmental problems have become increasingly serious. Among them, the problem of sewage pollution is a difficult problem among many environmental problems. Sewage treatment methods usually include physical methods, chemical methods, biological methods and so on. However, in recent years, the use of evaporation method for sewage treatment has been more and more favored by people because of its unique advantages in application. The principle of the evaporation method to treat sewage is: evaporate the sewage, the pollutants in the sewage are dried, and then remove dust and remove harmful substances from the higher temperature humid air obtained after evaporation, and finally realize the treatment of sewag...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a sewage treatment system to solve the problem of high energy consumption in the sewage treatment process of the sewage treatment method provided in the background art

Images