摘要：
产业集聚区污水厂尾水处理选用垂直流人工湿地工艺，湿地床内铺设石灰石、硫磺、硫铁矿混合基质，日处理水量4万m3，水力停留时间24 h，监测分析了湿地稳定运行后的净化力。研究结果表明：垂直流人工湿地对COD、TN的平均去除率分别为18.93%、56.83%，出水TN、NO3--N、NH3-N、NO2--N分别在7.60~13.99、4.17~7.29、0.81~2.17、1.01~4.07 mg/L，满足《城镇污水处理厂污染物排放标准》（GB 18918-2002）一级A标准。
关键词:
垂直流人工湿地,
产业集聚区,
尾水,
硫自养反硝化,
脱氮
Abstract:
The vertical flow constructed wetland was adopted for the tail-water treatment in the sewage plant in the industry cluster district. A mixed matrix of limestone, sulfur, and pyrite were laid in the wetland bed. The processing capacity of the wetland system could reach up to 40 000 m3/d, and the HRT was determined as 24 hours. The effect of wetland system on the removal ratio of the pollutant was measured during the stable operation. The results showed that COD and TN removal ratios in the wetland system could reach up to 18.93% and 56.83%, respectively. The concentrations of TN, NO3--N, NH3-N, NO2--N in the effluent were 7.60-13.99, 4.17-7.29, 0.81-2.17 and 1.01-4.07 mg/L, respectively. Thus, the average effluent quality of the system met Grade A of Standard of Pollutant Discharge Standard of Urban Sewage Treatment Plant(GB 18918-2002).
Key words:
vertical flow constructed wetland,
industry cluster district,
tail-water,
sulfur autotrophic denitrification,
nitrogen removal
中图分类号:
陈涛,王翔,朱召军,孔德芳,于鲁冀. 垂直流湿地用于产业集聚区污水厂尾水脱氮处理[J]. 工业水处理, 2019, 39(11): 101-103, 112.
Tao Chen,Xiang Wang,Zhaojun Zhu,Defang Kong,Luji Yu. Denitrification research on the treatment of tail-water from industry cluster district using vertical flow constructed wetland[J]. Industrial Water Treatment, 2019, 39(11): 101-103, 112.