title: Potential for nutrient removal by integrated remediation methods in a eutrophicated artificial lake - a case study in Dishui Lake, Lingang New City, China.
abstract: A new integrated water remediation technology, including a floating bed, a buffer zone of floating plants, enclosed 'water hyacinth' purification, economic aquatic plants and near-shore aquatic plant purification, was used in Dishui Lake to improve its water quality. A channel of 1,000 m length and 30 m width was selected to implement pilot-scale experiments both in the static period and the continuous water diversion period. The results showed that the new integrated water remediation technology exhibited the highest removal rate for permanganate index in a static period, which achieved 40.6%. The average removal rates of total nitrogen (TN), ammonia nitrogen (NH3-N) and total phosphorus (TP) in a static period were 23.2, 21.6 and 19.1%, respectively. However, it did not exhibit an excellent removal rate for pollutants in the continuous water diversion period. The average removal rates for all pollutants were below 10%. In winter, the new integrated remediation technology showed efficient effects compared to others. The average removal rate for CODMn, TN, NH3-N and TP were 7, 5.3, 7.6 and 6.5%, respectively. Based on our results, the new integrated water remediation technology was highly efficient as a purification system, especially during the static period in winter.
authors.affiliation: Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China E-mail: zhangqiuzhuo@126.com.
authors.forename: Qiuzhuo
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China E-mail: zhangqiuzhuo@126.com.
authors.forename: Chi
authors.initials: C
authors.lastname: Ding
authors.affiliation: Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China E-mail: zhangqiuzhuo@126.com.
authors.forename: Varenyam
authors.initials: V
authors.lastname: Achal
authors.affiliation: Sino-Japan Friendship Centre for Environmental Protection, Beijing 100029, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Shan
authors.affiliation: Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China E-mail: zhangqiuzhuo@126.com.
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China E-mail: zhangqiuzhuo@126.com.
authors.forename: Yatong
authors.initials: Y
authors.lastname: Xu
authors.affiliation: Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China E-mail: zhangqiuzhuo@126.com.
authors.forename: Wei-Ning
authors.initials: WN
authors.lastname: Xiang
mesh_terms: D001673:Biodegradation, Environmental; D002681:China; D002947:Cities; D005068:Eutrophication; D005618:Fresh Water; D060106:Lakes; D009584:Nitrogen / Q000302:isolation & purification*; D010758:Phosphorus / Q000302:isolation & purification*; D010944:Plants; D012621:Seasons; D014874:Water Pollutants, Chemical / Q000302:isolation & purification; D018508:Water Purification / Q000379:methods*; D060753:Water Quality
chemical_list: D014874:Water Pollutants, Chemical; D010758:Phosphorus; D009584:Nitrogen