Why Industrial Wastewater Treatment Matters
India's industrial sector generates millions of liters of wastewater daily. With increasing environmental regulations and water scarcity, proper treatment is no longer optional—it's mandatory.
Types of Industrial Wastewater Treatment
- ETP (Effluent Treatment Plant) - For chemical, pharmaceutical, and textile industries
- STP (Sewage Treatment Plant) - For treating domestic wastewater
- ZLD (Zero Liquid Discharge) - Complete water recovery with zero discharge
- ETP + RO + Evaporation - For high-TDS industrial effluents
Key Treatment Technologies
1. Primary Treatment
Screening, grit removal, and sedimentation to remove suspended solids.
2. Secondary Treatment
Biological processes (MBR, SBR, UASB) to remove organic matter.
3. Tertiary Treatment
Filtration, RO, and advanced oxidation for water reuse.
4. Evaporation Systems
Thermal evaporation for concentrate disposal in ZLD plants.
India's Regulatory Framework
- CPCB/SPCB guidelines for effluent discharge
- ZLD mandates for 19 categories of industries
- Water conservation mandates in water-stressed regions
Conclusion
Investing in proper wastewater treatment not only ensures compliance but also enables water reuse, reducing operational costs in the long run.