曝气复氧技术在广东地区河流水质污染治理中的应用研究  

Applied Research of Aeration and Reoxygenation Technology in Guangdong Region River Water Pollution Control

作　　者：孙珊 SUN Shan(Shenzhen Baoan District Water Affairs Bureau,Shenzhen 518100,China)

机构地区：[1]深圳市宝安区水务局,广东深圳518100

出　　处：《中国水能及电气化》2021年第7期32-37,共6页China Water Power & Electrification

摘　　要：在对广东地区河流水质污染治理问题进行研究的过程中对曝气复氧技术应用进行了试验研究。构建了人工模拟河道,构建的河道模拟反应器长为3.0m、高为1.2m、宽为0.5m,能够达到1m的有效水深。通过曝气复氧技术对广东地区污染河流水质进行处理,确定曝气运行的最佳方式以及曝气的最佳强度,并对最佳生物填料进行筛选等。结果表明生物膜净化与曝气技术具有良好的河流水质污染治理效果,并且对于较慢流速的水体治理效果更好;弹性填料更适用于广东地区的河流水质污染治理,同时可以将卵石作为治理中的辅料;对于不同污染物而言,需要选择不同曝气方式;曝气强度的最佳选择为中度曝气;加入适量活性污泥能够带来更好的水质污染治理效果,最适当的活性污泥加入量为10%。曝气复氧技术在广东地区河流水质污染治理中的应用前景良好,应着手进行推广。The application of aeration and reoxygenation technology is tested and studied during the research on Guangdong river water pollution control problems.An artificial simulated river channel is constructed.The constructed river simulation reactor is 3.0m in length,1.2m in height and 0.5m in width,which could reach an effective water depth of 1m.The water quality of polluted rivers in Guangdong is treated by aeration and reoxygenation technology.The best mode of aeration operation and the best intensity of aeration are determined.The best biological fillers are screened,etc.The results show that the biofilm purification and aeration technology have excellent effect on river water pollution control,and the governance effect is better for the water body with slower flow rate.Elastic fillers are more suitable for river water pollution control in Guangdong.Meanwhile,pebbles can be used as auxiliary materials in the control.Different aeration methods should be selected for different pollutants.Medium aeration is the best choice for aeration intensity.An appropriate amount of activated sludge can be added to bring better governance effect of water pollution.The most appropriate amount of activated sludge is 10%.The aeration and reoxygenation technology has excellent application prospect in Guangdong river water pollution control.It should be popularized.

关 键 词：曝气复氧技术 广东地区 河流水质污染 水质污染治理 流量计 重铬酸钾法 

分 类 号：X52[环境科学与工程—环境工程]