曝气增氧—生物膜组合工艺提升黑臭水体实例

Case study of aeration oxygenation-biofilm combination process for improving the black and odorous water body

以深圳市茅洲河某黑臭河道水质提升为目标,采用控源截污技术、造流循环系统、曝气增氧技术和生物膜降解技术组合工艺进行治理,经过近3个月的安装调试运行,水质提升效果最终达到预期要求:透明度>25 cm,ORP>50 mV,NH3-N<8 mg/L,DO>2 mg/L。河道黑臭气味消失,透明度增加,水质改善明显。该组合工艺在技术上切实可行,具有良好的社会与环境效益。

It is aimed to improve the water quality of a malodorous tributary of Maozhou River in Shenzhen City.A combined process is carried out,consisting of the source control technology of sewage,flow circulation system,increasing the oxygen aeration technology,and biological membrane degradation technology.After nearly three months of installation and operation,the water quality of the river is significantly improved.The results show that transparency,ORP and DO are higher than 25 cm,50 mV,and 2 mg/L,respectively.Meanwhile,NH3-N is lower than 8 mg/L.The disappearance of odor,the increase of transparency and the improvement of water quality of river course have proved that the combination technology is feasible and has excellent social and environmental benefits.