Industrial Waste Treatment — Prelims Strategy
Prelims Strategy
For Prelims, a strong factual foundation is key. Begin by thoroughly understanding the major environmental acts: Water (Prevention and Control of Pollution) Act, 1974; Air (Prevention and Control of Pollution) Act, 1981; and Environment (Protection) Act, 1986.
Focus on their key provisions, the bodies they established (CPCB, SPCBs), and the powers granted. Next, memorize the important rules like the Hazardous and Other Wastes (Management and Transboundary Movement) Rules, 2016, and Plastic Waste Management Rules, 2016, specifically noting the concept of Extended Producer Responsibility (EPR).
Understand the definitions of key pollution indicators like BOD, COD, TSS, and their significance. Familiarize yourself with the basic principles and common technologies for primary, secondary, and tertiary treatment, including advanced concepts like Zero Liquid Discharge (ZLD) and Advanced Oxidation Processes (AOPs).
Pay attention to landmark judgments (e.g., Vellore Citizens' Welfare Forum) and their associated principles (Polluter Pays, Precautionary Principle). Finally, stay updated with recent amendments, new rules (e.
g., proposed Hazardous Waste Rules 2024), and significant NGT rulings from current affairs, as these are frequently tested. Practice MCQs that test both static knowledge and current developments, focusing on conceptual clarity and avoiding common traps related to specific acts or technical details.