微纳米气泡改善太湖入湖河道水质的工程实例研究——苏州南北华翔河水质改善工程为例

太湖入湖河道，在各级政府及部门的努力工作下，经过点源治理、截污、清淤、生态修复等综合手段治理，水质逐年好转，但还存在很大的提升空间，本研究采用微纳米气泡气液分散系统，对人湖河道水体进行原位净化处理，结果表明，CODMn、氨氮、总磷的平均去除率分别为36．8％、42．4％，49．1％。入湖水质达到国家地表水Ⅱ-Ⅲ类标准。

The Study of Engineering Case of Improving the Water Quality of Inflowing Rivers of Taihu Lake with Micro-nano Bubbles — Water quality improvement project of the north-south Huaxiang river in Suzhou

In the hard work of governments at all levels, the water quality of inflowing rivers of Taihu Lake improves year by year via the methods as point-source treatment, sewage interception, dredging and ecological rehabilitation, but there is still a huge rise space. This research uses in-situ water purifying technology to process the water of inflowing rivers of Taihu Lake by using gas-liquid dispersion micro-nano bubble generator. The results show that the average removal rate of CODMn, ammonia nitrogen and total phos- phorus are 36.8%, 42.4% and 49.1% respectively. The water quality reached the Ⅱ-Ⅲ level standard of national surface water.