Phosphorus removal from eutrophic lakes using periphyton on submerged artificial substrata
Phosphorus removal from eutrophic lakes using periphyton on submerged artificial substrata
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DOI：
10.1007/s10750-004-2337-5
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发表时间：
2004-10
期刊：
影响因子：
2.6
通讯作者：
Angelika Jöbgen;A. Palm;M. Melkonian
中科院分区：
文献类型：
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作者：
Angelika Jöbgen;A. Palm;M. Melkonian
采用聚丙烯（PP）为基质载体，研究了浮游生物对湖泊中磷的去除潜力。研究区域位于科隆（德国）的“Fühlinger See”湖是一个中富营养化砾石坑湖。整个场地被集中用作娱乐区。游客被认为是湖泊富营养化的最重要的单一贡献者。载体暴露在不同的深度（2，3.5，5米），不同的时间间隔（1-8个月），并从3月至11月PP片很容易殖民地的附着生物和生物膜主要由底栖硅藻的发展。丝状绿色藻类主要在7月至11月间在人工基质上定居，因此观察到基质上附着生物的季节性变化。叶绿素含量的附着生物的PP-羊毛是高达240倍以上的叶绿素a浓度在相同体积的上层。高达约100毫克的总磷每平方米PP-羊毛被绑定，并可以消除从湖的基板载体与附着生物一起曝光后四个月。虽然大规模的验证是必要的，这种方法可能适用于作为一种技术，在大规模的设置从水柱中收获磷。
The potential of periphyton for phosphorus removal from lakes has been investigated using a novel method involving polypropylene (PP) substrate carriers submerged in the pelagial. The study area Lake 'Fühlinger See' in Cologne (Germany) is a complex of mesoeutrophic gravel pit lakes. The whole site is intensively used as a recreation area. Visitors are thought to be the most important single contributors to lake eutrophication. Carriers were exposed at different depths (2, 3.5, 5 m), for different time intervals (1–8 months) and from March to November PP-sheets were readily colonised by periphyton and a biofilm consisting mainly of benthic diatoms developed. Seasonal variability of periphyton on substrates was observed since filamentous green algae colonised the artificial substrates mainly between July and November. Chlorophyllacontent of periphyton on the PP-fleece was up to 240-fold higher than chlorophyll a concentrations in the same volume in the epilimnion. Up to around 100 mg of total phosphorus per m2PP-fleece was bound and can be eliminated from the lake by removal of the substrate carriers together with the periphyton after four months of exposure. Though large-scale validations are needed, this method may be applicable as a technique to harvest phosphorus from the water column in larger-scale settings.