黑臭水体河底末端修复治理

Riverbed Improvement for Solving Black and Smelly Water

黑臭水体河道污染底泥具有颜色黑、厚度深、气味刺鼻、对水质影响较重的特点,其清除过程可能会对河床产生破坏,严重时会影响河道水流流态、边坡稳定,不仅可能增加投资,还会危害生态环境。本文以菏泽市小黑河黑臭水体综合整治工程为例,通过分析小黑河黑臭现状和目标,针对河底不同厚度的污染底泥,提出内源治理和生态砾石床组合的河底末端修复技术,保障了边坡稳定,取得了生态治理效果,为城市黑臭水体的治理提供技术参考。

Polluted sediment in black and smelly waterway is black,thicker,smelly and has serious influence on water quality.Its removal may damage riverbed,affect the pattern of water flow and the stabilization of side slope,increase investment,and do harm to ecological environment.Based on the comprehensive regulation project of black and odorous water in Xiaoheihe River in Heze City,by analyzing its status and goal,the combination of endogenous regulation and ecological gravel bed serves as riverbed improvement solution subject to different thicknesses of polluted sediment.The technique ensures slope stabilization,improves local ecology,and provides a technical reference for similar projects.