摘要
复合型表流人工湿地是一种改进型表流人工湿地,其以常规表流湿地为基础构建深沟浅滩,在挺水植物的底部进行微地形的塑造,并人工强化种植耐阴型的沉水植物。研究了9—1月、试验温度在0.1~29.5℃时,复合型表流人工湿地对微污染原水中的悬浮物、叶绿素a、氨氮和总磷的去除效率。研究表明,复合型表流人工湿地进水在文献显示的沉水植物生长阈值范围内时,对悬浮物、叶绿素a、氨氮和总磷的去除效率分别为(51.2±17.4)%、(36.0±21.7)%、(13.9±8.9)%和(45.3±10.0)%,对悬浮物、叶绿素a、氨氮和总磷去除的单位面积负荷分别为0.13,2.4,65,87.5 g/(m2·d)。去除效率受温度影响较小,系统具备较高的稳定性。
Compound surface-flow constructed wetland is an improved surface-flow constructed wetland,with constructing deep grooves and shallows based on the conventional surface-flow wetland,shaping micro terrain in the bottom of the emerging plant and artificially intensified planting shade-tolerant submerged plant. The paper studied on the removal efficiency of suspended matter,chlorophyll a,NH3-N,TP in the micro-polluted raw water,at the test temperature of 0. 1 ~ 29. 5 ℃ from September to January. Research showed that,when the influent quality was in the range of submerged plant growth threshold,the removal efficiency of suspended matter,chlorophyll a,NH3-N,TP were( 51. 2 ± 17. 4) %,( 36 ± 21. 7) %,( 13. 9 ± 8. 9) %,( 45. 3 ±10. 0) %,the load per unit area of suspended matter,chlorophyll a,NH3- N and TP removal units were respectively 0. 13,2. 4,65,87. 5g /( m2·d). The removal efficiency was affected little by temperature,the system had higher stability.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第S1期344-347,共4页
Environmental Engineering
关键词
复合型表流人工湿地
微污染
水源地
compound surface-flow constructed wetland
micro-polluted
water sources
