Wastewater that is not defined as domestic wastewater is considered industrial wastewater. Sources of industrial wastewater include manufacturing, commercial businesses, mining, agricultural production and processing, and wastewater from cleanup of petroleum and chemical contaminated sites. Industrial wastewater discharged under CPCB/ NPDES permits may be subject to federal Effluent Limitations Guidelines (ELG). In addition, all industrial wastewater discharges, must provide reasonable assurance of meeting Water Quality Standards for surface water or ground water in order to receive a discharge permit.

KIW India can refer to long-term experience in the industrial wastewater treatment sector. The resulting expertise is advantageously employed for the technical and economic optimisation of every subsequent facility. The treatment process may contain mechanical, biological and chemical physical process steps.