Kategoriji kollha
EN

Industrija aħbarijiet

Id-dar>Aħbarijiet>Industrija aħbarijiet

Some Common Sewage Treatment Technologies in China

Ħin: 2020-06-21 Viżti: 3

Activated sludge technology

Activated sludge technology is a biological method that passes air into wastewater to turn aerobic microorganisms into activated sludge with strong adsorption capacity. The biological method has gradually become the mainstream of sewage treatment technology method.


There are many kinds of activated sludge technology, including ordinary activated sludge method, oxidation ditch method, AB two-stage activated sludge method, sequential batch activated sludge (SBR) method, fully mixed sludge method, etc. .

Domestic sewage purification biogas tank

A new type of domestic sewage anaerobic purification tank (or urban sewage purification biogas tank) is a small-scale decentralized sewage treatment device.


The biogas digester for domestic sewage purification is developed on the basis of septic tanks and biogas digesters, which solves the disadvantages of poor treatment effect of septic tanks, large amount of deposited sludge, and low biogas recovery rate of biogas digesters.

Biomembrane technology

Biomembrane technology is a kind of artificial treatment technology mainly used in decentralized domestic sewage treatment, including anaerobic and aerobic biofilms.


Anaerobic or aerobic microorganisms adhere to the surface of the carrier and form a biofilm to adsorb and degrade pollutants in sewage to achieve purification purposes.


This method has simple equipment, low running cost and high processing efficiency.

At present, new biofilm reactors and immobilized microbial technologies have also been extensively studied. MBR (Membrane Bioreactor) technology is one of them.

Integrated MBR process

A traditional improved process that combines the activated sludge process and integrated immersion membrane separation system. The solid-liquid separation process using membrane modules replaces the traditional sedimentation process and can effectively remove solids Suspend the particles and organic particles to prepare sterile water.


The system effluent can be directly used for production or life reuse. This technology is suitable for sewage treatment facilities that require reuse or have tight land use, with a treatment scale of 1 to 500 tons/day.