하수처리장 방류수를 이용한 하이브리드형 인공습지의 수질 개선 특성 분석

This study established a hybrid constructed wetland (HCW) to further reduce residual pollutants in the treated effluent from a municipal wastewater treatment plant (MWTP) and evaluated its removal characteristics and environmental potential. Concentration changes in BOD, TOC, TN, and TP were analyzed according to the operational phases, and pollutant load reduction was assessed. The removal efficiencies were 86.3 % for BOD, 97.2 % for TN, 69.23 % for TP, and 28.4 % for TOC. When applied to nationwide effluent discharge, the total pollutant load reduction was estimated to be 147.3 ton/day. These findings indicate that hybrid constructed wetlands can serve as an effective nature-based solution (NbS) for additional mitigation of pollutants in MWTP effluent within aquatic environmental management frameworks.