生物强化应用于河道水体质量提升的工程实践探讨

Research on Engineering Practice of Bio-enhancement Applied to the River Water Quality Improvement

本研究主要针对某一外源污染输入严重的河道,采用生物强化应用以提升河道水质,并逐渐恢复河道生态系统的情况:生物强化以生态氧化沟为主要形式,以生物填料作为微生物载体,并在有废水严重渗漏点位置设置独立的“生物膜+化学除磷”系统,从而实现对有机物和氮、磷污染物的有效去除。工程实施、稳定运行后,水体水质有了明显的改善,水体水质由普遍的劣Ⅴ类提升至Ⅳ类甚至Ⅲ类,达到了本工程实施目标,为河道生态恢复提供了水质保障。

This study addresses the issue of severe pollution in a river caused by significant external contaminant inputs:To achieve the objective of enhancing water quality and gradually restoring the river’s ecosystem,a bioaugmentation technique was employed.The process primarily involved the implementation of an ecological oxidation ditch with inanimate fillers as microbial carriers.Additionally,an integrated“biofilm+chemical phosphorus removal”system was established at locations with minor wastewater seepage to effectively remove organic matter,nitrogen,and phosphorus pollutants.The stable operation of the project resulted in a remarkable improvement in water quality,with the water body transitioning from Grade Ⅴ to Grade Ⅳ even Ⅲ.These outcomes are in alignment with the intended project objectives,facilitating the successful restoration of the river’s ecosystem.