基于磁絮凝+碳纤维水草耦合纳米曝气技术的黑臭水体修复研究

Magnetic Flocculation+Carbon Fiber Aquatic Plants Coupled With Nano-Aeration to Repair Black and Odorous Water

黑臭水体反弹是黑臭水体治理过程中的一大难题,为研究如何彻底消除黑臭水体,防止黑臭水体反弹,在原位治理前提下,采用磁絮凝技术去除污染物,降低水体黑臭程度;然后通过新型碳纤维生态水草耦合纳米曝气技术持续改善水质进行了实验,结果表明:底泥改良后可以有效抑制底泥污染物释放,磁絮凝技术对黑臭水体的污染物削减具有显著效果,对黑臭水体的SS、COD、氨氮和TP的去除率分别为71.8%、52.4%、20.5%和66.2%;碳纤维水草耦合纳米曝气技术修复黑臭水体效果最佳,水体透明度由15 cm上升至48 cm,对COD、氨氮、TP的去除率分别达到了88%、97%和68.6%,可以有效改善水体微生态环境,形成良性循环,持续改善黑臭水体,净化水质。

Black odor water body rebound is a big problem in the process of black odor water body management.In order to study how to completely eliminate black and smelly water and prevent it from rebounding,this experiment uses magnetic flocculation technology to remove pollutants and reduce water under the premise of in-situ treatment.Then,the water quality is continuously improved through the new carbon fiber ecological aquatic plants coupled with nano-aeration technology.The experimental results show that the improved sediment can effectively inhibit the release of pollutants from the sediment,and the magnetic flocculation technology has a significant effect on the reduction of pollutants in the black and odorous water.The removal rates of SS,COD,ammonia nitrogen and TP from black and odorous water are 71.8%,52.4%,20.5%and 66.2%respectively;Carbon fiber aquatic plants coupled with nano-aeration technology has the best effect in repairing black and odorous water.The water transparency increased from 15cm up to 48cm.The removal rates of COD,ammonia nitrogen and TP reach 88%,97%and 68.6%respectively,which can effectively improve the micro-ecological environment of water to form a virtuous circle,continuously improve the black odor water body and purify water quality.