Industrial wastewater has long been a primary contributor to water source pollution and ecological degradation. For individuals residing in such environments, prioritizing wastewater treatment is imperative to safeguard ecosystems and water resources from harm. The core objective of wastewater treatment is to either separate pollutants from the water or decompose them into non-toxic substances. This raises the question: what methods are typically used for industrial wastewater treatment?

Three prevalent approaches to wastewater treatment exist: physical, chemical, and biological methods, as outlined below:  

1.Physical methods rely on physical processes to remove suspended impurities from water, without altering the fundamental chemical properties of the water. Techniques such as sedimentation, filtration, centrifugation, evaporation, and air flotation fall under this category.

2.Chemical methods involve introducing chemical reagents into wastewater to initiate reactions that separate, decompose, transform, or recover pollutants, thereby converting hazardous substances into non-toxic forms. Examples include adsorption, redox reactions, ion exchange, and neutralization.

3.Biological methods utilize the metabolic activities of aquatic microorganisms to decompose organic matter in water into non-toxic substances, thus purifying the wastewater. Processes like biofilm treatment and natural biological remediation are representative of this approach.

While the above provides a brief overview of the three industrial wastewater treatment methods, Hangzhou Modi emphasizes that post-treatment, online water quality monitoring is essential. This allows for the evaluation of treatment efficacy and verification of compliance with regulatory standards, ensuring safe discharge or reuse of the treated water.