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在控制内部营养物质负载时,对疏,改性顿石,改性地石和FeCl₂进行比较

Li Kang¹, Sina Haasler², Maíra Mucci¹

¹Aquatic Ecology & Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA, Wageningen, The Netherlands.

|August 6, 2023

概括

斯洛克® (LMB) 和Aqual-PTM (AMZ) 有效地减少了来自温池沉积物的释放. 由于其整体有效性和安全性,建议LMB用于Bouvigne池的恢复.

科学领域:

环境科学环境科学
临界技术临界技术
水质管理水质管理

背景情况:

缩的Bouvigne池患有反复出现的蓝藻细菌的开花.
减少外部营养负载和内部沉积物释放对于改善水质至关重要.

研究的目的:

为了比较疏的有效性,Phoslock® (LMB),Aqual-PTM (AMZ) 和FeCl2在缓解沉积物营养释放方面具有非常大的作用.
评估这些处理对水质和沉积物池的影响.

主要方法:

在Bouvigne池进行现场封闭实验 (2020年3月至7月).
处理包括疏,LMB,AMZ和FeCl2.
水和沉积物分析,包括连续提取和沉积物核心化.

主要成果:

所有处理都改善了水质,显著减少了总 (TP) 和可过 (FP).
疏显示了移动沉积物 (71.4%) 的最大减少,其次是AMZ (60.2%) 和LMB (38%).
在LMB,AMZ和FeCl2处理的核心中,FP流是负的,表明P释放减少,尽管LMB显示DIN释放增加.

结论:

湖内处理有效地改善了水质,并减少了Bouvigne池的内部负荷.
鉴于有效性,应用,成本和安全性,LMB被确定为Bouvigne池恢复的首选选项.
对于全面的修复规划,需要进一步考虑.

关键词:

地质工程技术的技术.恢复湖泊的恢复工作营养素营养素营养素沉积物沉积物是一种沉积物.水的质量水的质量

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