ECET 2026 CIVIL ECET 2026 CIVIL LearnNewThings November 27, 2025 0 Comments Day 17: ECET 2026 Civil – Sewage Treatment (Complete Concept & MCQs) Concept Notes (Deep Explanation + Examples) 🌍 Introduction Sewage treatment is one of the most important topics in Environmental Engineering for ECET 2026 Civil. It deals with the removal...