复合型生态浮床净化污水厂尾水的效能研究  

Treatment of Tail Water from Wastewater Treatment Plant by Integrated Ecological Floating-bed

作　　者：戴谨微 陈盛 曾歆花 何圣兵[1] 黄荣振[1] 周伟丽[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《中国给水排水》2018年第3期77-81,共5页China Water & Wastewater

摘　　要：污水厂尾水具有可生物降解有机物含量低、氮磷含量较高的特点。采用融合了生物、生态两类技术特点的复合型生态浮床净化模拟污水厂尾水,考察其对氮、磷的净化效能。结果表明,当HRT为2 d时,复合型生态浮床系统对NH_4^+-N、TN、TP的平均去除率分别为(86.89±13.18)%、(22.19±6.57)%、(76.10±24.31)%,单位面积去除负荷分别达到了(664.29±100.71)、(638.97±178.97)、(61.71±15.12)mg/(m^2·d);当HRT为3 d时,对NH_4^+-N、TN、TP的平均去除率分别为(98.69±0.81)%、(20.56±2.63)%、(91.80±5.52)%,单位面积去除负荷则有所降低,分别为(473.62±36.72)、(395.61±64.10)、(45.79±5.40)mg/(m^2·d)。Tail water from wastewater treatment plants is low in biodegradable organic matter and high in nitrogen and phosphorus concentration. An integrated ecological floating-bed which has combined characteristics of bio-technology and eco-technology was utilized in this study to purify synthetic tail water from wastewater treatment plants. The nitrogen and phosphorus removal efficiencies were investigated during the experiment. The results showed that under a hydraulic retention time of 2 d, the average removal rates of NHf - N, TN and TP by the integrated ecological floating-bed were （86.89 ±13. 18）%, （22.19±6.57） % , and （76.10±24.31 ） %, respectively; and the average removal loads per area were （664.29 ±100.71） mg/（m^2·d）, （638.97 ±178.97） mg/（m^2·d） and （61.71 ±15.12） mg/（m^2·d） , respectively. Under a hydraulic retention time of 3 d, the average removal rates of NH4^＋ - N, TN and TP reached （98.69±0.81）%, （20.56 ±2.63）% and （91.80 ±5.52）%, respectively; while, removal loads per area decreased to （473.62±36.72） mg/（m^2 · d）, （395.61 ±64.10） mg/（m^2·d） , and （45.79 ±5.40） mg/（m^2·d）, respectively.

关 键 词：复合型生态浮床 污水厂尾水 黄菖蒲 氮 磷 

分 类 号：TU992.3[建筑科学—市政工程]