组合生物技术对黑臭河道治理的中试研究

Pilot-Scale Study of Combined Biotechnology for Treatment of Black and Odorous Rivers

为探究组合生物技术对黑臭河道修复的工程应用,采用"曝气复氧+人工水草+高效生物菌剂"技术对连云港东辛农场某黑臭河道修复的中试实验研究。运行结果表明,经过3个月的调试与运行,河道水质得到明显改善,对COD、氨氮、总磷的去除率分别达到了68.9%、80%、73.1%,水体透明度由0.16 m上升到0.6 m以上,溶解氧从0.97 mg/L增长到4.34 mg/L。经中试实践证明,该组合技术能有效去除水体的有机污染物、无机盐等,提高水体透明度和溶解氧,同时消减了河道底部的黑臭底泥,水质提升至地表水IV类标准,该水体的景观生态效果得到了有效的提升。

In order to explore the engineering application of combined biotechnology in the restoration of black Odorous River, a pilot test study on the restoration of a black Odorous River in Dongxin farm of Lianyungang was carried out. The operation results show that after three months of commissioning and operation, the water quality of the river has been significantly improved. The removal rates of COD, ammonia nitrogen and total phosphorus have reached 68.9%, 80% and 73.1%, respectively. The water transparency has increased from 0.16 m to more than 0.6 m, and the dissolved oxygen has increased from 0.97 mg/L to 4.34 mg/L. The pilot test shows that the combined technology can effectively remove organic pollutants and inorganic salts, improve water transparency and dissolved oxygen, reduce the black and odorous sediment at the bottom of the river, and improve the water quality to class IV standard of surface water. The landscape ecological effect of the water body has been effectively improved.