With the rapid development of industry, the discharge of industrial wastewater is increasing, which has a serious impact on the environment. In order to protect the environment and reduce the damage of wastewater to the ecosystem, industrial wastewater needs to be pre-treated. Here is a brief introduction to some of the main technologies for industrial wastewater pretreatment.
Physical processing technology.
Physical treatment technology is a method that uses physical principles to remove suspended solids, heavy metals and other substances in wastewater. Commonly used physical treatment techniques include precipitation, filtration, centrifugation, etc. These technologies can effectively remove large particulate matter and heavy metal ions from wastewater.
Chemical treatment technology.
Chemical treatment technology is a method that uses chemical reactions to remove organic matter, inorganic matter and other substances in wastewater. Commonly used chemical treatment techniques include redox, neutralization, coagulation, etc. These technologies can effectively remove harmful substances from wastewater and improve the biodegradability of wastewater.
Biological treatment technology.
Biological treatment technology is a method that uses the metabolism of microorganisms to remove organic matter from wastewater. Commonly used biological treatment technologies include activated sludge method, biofilm method, etc. These technologies can effectively remove organic matter from wastewater while also improving the biodegradability of wastewater.