“生态浮岛+”对黑臭水体的净化效果与机制研究

Study on purifying effect and mechanism of “eco-floating island+” on black-odorous water

传统生态浮岛在水质净化处理时存在浮水植物吸收污染物能力有限,深水处理效果不佳等问题。针对上述局限性,尝试将生态浮岛、活性炭纤维组件和曝气组件进行自由组合,形成"生态浮岛+"装置并用于黑臭水体净化处理。经过22d的处理,基于生态浮岛+活性炭纤维+曝气的"生态浮岛+"全组合装置对COD、TN和TP的去除率分别达到83.9%、50.2%和26.4%,而传统生态浮岛对COD、TN、TP的去除率分别为70.5%、39.2%、17.9%,COD、TN、TP的去除率分别提升了13.4、11.0、8.5百分点。"生态浮岛+"利用颗粒物沉降、植物吸收、微生物降解以及活性炭纤维吸附等协同作用净化水质,可以适应不同水质、水深的水体,使用范围更广,适应性更强。

The traditional eco-floating island had several problems in water purification,such as the limited absorption capacity of pollutants and poor performance for deepwater treatment.Aiming at these shortcomings above,the eco-floating island,activated carbon fiber and aeration were freely combined to form “eco-floating island +” device to treat black-odorous water.After 22 days of experiment,the “eco-floating island +” entire combination device,which combined eco-floating island,activated carbon fiber and aeration together,presented the COD,TN and TP removal rates of 83.9%,50.2% and 26.4%,while that for the traditional eco-floating island 70.5%,39.2% and 17.9%.The COD,TN and TP removal rates were improved by 13.4,11.0 and 8.5 percent point respectively.The “eco-floating island +” used the synergistic effect of particle sedimentation,plant absorption,microbial degradation and activated carbon fiber adsorption to purify water.Therefore,it could adapt to water bodies with different water quality and water depth,and had wider application range and stronger adaptability.