典型文献
Nitrogen removal from summer to winter in a field pilot-scale multistage constructed wetland-pond system
文献摘要：
A pilot-scale multistage constructed wetland-pond (MCWP) system with a "pre-ecological oxidation pond,two-stage horizontal subsurface flow constructed wetland (HSCW) and sur-face flow constructed wetland (SFCW) as the core and postsubmerged plant pond" as the process was used to treat actual polluted river water in the field,and the variation in ni-trogen removal from summer to winter was investigated.The results showed that the av-erage total nitrogen (TN) removal efficiency in the MCWP was approximately 40.74％.The significant positive correlation between the daily highest temperature and the TN removal efficiency of the whole system was fitted with a nonlinear curve (R2 =0.7192).The TN re-moval load rate in the HSCWs was 2.7-3.7 times that in the SFCW.The SFCW,which had high-density plants (35 plants/m2),increased the proportion of nitrogen removed by plant harvesting and microbial function.The TN transformed by Iris pseudacorus L.accounted for 54.53％ in the SFCW.Furthermore,bacteria completed the nitrogen cycle in the SFCW through a variety of nitrogen removal pathways.This research not only investigated the TN removal performance in an MCWP system but also made it possible to predict the TN re-moval efficiency according to the daily highest temperature from summer to winter in the field.
文献关键词：
中图分类号：
作者姓名：
Tao Wang;Liping Xiao;Hongbin Lu;Shaoyong Lu;Jiaxin Li;Xiaochun Guo;Xiaoliang Zhao
作者机构：
National Engineering Laboratory for Lake Pollution Control and Ecological Restoration,State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu (SEPSORSLD),State Environmental Protection Key Laboratory for Lake Pollution Control,State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;College of Environmental Science and Engineering,Liaoning Technical University,Fuxin 123000,China;School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266033,China;College of Water Sciences,Beijing Normal University,Beijing 100875,China
文献出处：
引用格式：
[1]Tao Wang;Liping Xiao;Hongbin Lu;Shaoyong Lu;Jiaxin Li;Xiaochun Guo;Xiaoliang Zhao-.Nitrogen removal from summer to winter in a field pilot-scale multistage constructed wetland-pond system)[J].环境科学学报（英文版）,2022(01):249-262
A类：
MCWP,SFCW,postsubmerged,HSCWs
B类：
Nitrogen,removal,from,summer,winter,field,pilot,scale,multistage,constructed,wetland,pond,system,ecological,oxidation,two,horizontal,subsurface,flow,core,process,was,used,treat,actual,polluted,river,water,variation,investigated,results,showed,that,av,erage,total,nitrogen,TN,efficiency,approximately,significant,positive,correlation,between,daily,highest,temperature,whole,fitted,nonlinear,curve,load,rate,times,which,had,density,plants,increased,proportion,removed,by,harvesting,microbial,function,transformed,Iris,pseudacorus,accounted,Furthermore,bacteria,completed,cycle,through,variety,pathways,This,research,not,only,performance,but,also,made,possible,predict,according
AB值：
0.425553
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