Case study: Performance status of CETP Plants in India
Common Effluent Treatment Plants (CETPs) are significant in handling industrial wastewater in India as they attempt to minimize the environmental degradation caused due to industries. These are common facilities treating wastewater from several industries and ensure adherence to environmental norms. Here, we will discuss the performance of CETP’s in India and look into key performance indicators and case studies wherein cities have shared their experience operating Effluent Treatment Plants.
Case Study 1: Ankleshwar, Gujarat
One of India’s biggest CETP is located at Ankleshwar, an industrial city of Gujarat. The CETP was established by one of the major industrial associations of the area, the Ankleshwar Industrial Association (AIA), to cater to the environmental needs of the chemical and pharmaceutical industries in the region.
Performance Metrics:
Effluent Volume: This CETP, located in Ankleshwar, treats about 75 MLD (Million Litres per Day) wastewater from more than 200 member industries.
Treatment Efficiency: The CETP uses advanced treatment processes, such as bio-treatment, chemical precipitation and charcoal activation with removal efficiency of more than ninety-five percent for key pollutants.
Compliance: The treated effluent is then regularly monitored to ensure it conforms to GPCB norms.
Success Factors:
Strong Industry Association: The continuous support and active involvement of the Ankleshwar Industrial Association and their vision towards environment sustainability is the reason for success of the CETPs.
Investment in Technology: High treatment efficiency is attributed to continuous upgrades and investments in state–of–the–art technology.
Case Study 2: Tirupur, Tamil Nadu
Performance Metrics:
Effluent Volume: The Tirupur CETPs treated more than 150 MLD effluent from over 700 textile units.
Treatment Efficiency: In terms of achieving impressive results of reduction of chemical oxygen demand (COD) along with other pollutants, the CETPS use a blend of physico-chemical and biochemical ways for treating effluents.
Sustainable Practices: Units in Tirupur have now started to adopt zero liquid discharge (ZLD) practices, thereby minimizing the environmental footprint.
Success Factors:
Regulatory Oversight: But this became effective due to strict implementation by the Tamil Nadu Pollution Control Board and the intervention of the judiciary, forcing industries to follow responsible effluent treatment practices.
Collaboration: By collaborating with both the stakeholders from textile units as well as the central government and environmental agencies, successful CETPs were set up.
Challenges and Opportunities for CETPs in India:
While the above case studies highlight success stories, several challenges persist:
Funding: Some CETPs face challenges of financial viability resulting in maintenance/operational problems.
Regulatory Compliance: Compliance with effluent treatment norms still continues to be an issue for all industries.
Technological Advancements: Continued technical advancement is a must for CETPs to adapt to the changing environmental norms.
Capacity Building: Efficient effluent treatment practices must be taught to smaller businesses for implementation.
Conclusion
CETPs in India have made significant progress in treating industrial wastewater and diminishing ecological effect. The case studies of Ankleshwar and Tirupur offer examples of how such partnerships, investments in technology, and strong rules can lead to positive developments. However, constant measures are to be taken up to tackle the hurdles and to sustain the momentum of the CETPs in India. Effluent Treatment is still essential as an area of sustainability for Industrial Growth and Environment Protection in the country.
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