挺水植物净化村镇污水的实验研究  

Experimental Research on Rural Sewage Purification by Emergent Plants

作　　者：王伟亚 张静 侯红勋 蒋涛 范信生 WANG Wei-ya;ZHANG Jing;HOU Hong-xun;JIANG Tao;FAN Xin-sheng(CECEP Guozhen Environmental Protection Technology Co.,Ltd.,Hefei 230088,China)

机构地区：[1]中节能国祯环保科技股份有限公司,合肥230088

出　　处：《中国环保产业》2022年第1期26-31,共6页China Environmental Protection Industry

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07602-001-002)。

摘　　要：为研究挺水植物浮床对村镇污水处理厂的水质净化效果及其生长情况,选择美人蕉、黄花鸢尾和芦苇对污水处理厂的进水和生化池进行静态实验。实验表明:低浓度污水中第4—11d为植物快速生长期,污染物浓度均明显减少。美人蕉脱氮除磷效果最好且对污水适应良好;黄花鸢尾和芦苇在高浓度污水中生长缓慢。美人蕉对低、高浓度污水中TN去除量达0.43—2.02mg TN/g,对低、高浓度污水中TN的去除率分别为86.61%和68.03%;TP去除量为0.41—1.56mg TP/g,对低、高浓度污水中TP的去除率分别为85.58%和47.69%。组合组对低浓度污水中TN和TP的去除率分别为85.21%和81.25%。因此,在村镇污水处理生物浮床技术中,可考虑采用美人蕉从进水到生化处理阶段协同生化反应去除污染物,在低浓度处搭配种植黄花鸢尾和芦苇,强化脱氮除磷效果,降低运营费用。In order to study the water purification effect and growth of the emergent plant floating bed in rural sewage treatment plant, Canna indica, Iris wilsonii and Phragmites australis were selected to conduct static experiments on the sewage plant influent and biochemical pond. The results showed that the plant growth spurt was during the 4-11;days in low-concentration sewage, while the concentration of pollutants decreased significantly. Canna indica was the best for nitrogen and phosphorus removal, and it adapted well to sewage;Iris wilsonii and Phragmites australis grew slowly in high-concentration sewage. In low-and high-concentration sewage, Canna indica removed 0.43-2.02 mg TN/g of TN, with the removal rates of 86.61% and 68.03% respectively;and removed 0.41-1.56 mg TP/g of TP, the removal rates of 85.58% and 47.69% respectively. The removal rates of TN and TP were 85.21% and 81.25% in low concentration sewage by the combination of different plants. Therefore, when using biofloating bed for rural sewage treatment, Canna indica can be planted to remove pollutants from the stage of influent to the stage of biochemical treatment through coordinated biochemical reaction;Iris wilsonii and Phragmites australis can be planted in the place of low concentration to intensify denitrification and dephosphorization and reduce operating costs.

关 键 词：村镇污水 挺水植物 生物浮床 去除效果 快速生长期 

分 类 号：X703[环境科学与工程—环境工程]