IWRA 2023 Online Conference - Emerging Pollutants: Protecting Water Quality for the Health of People and the Environment
Theme 4: A circular economy approach: Lifecycle management of emerging pollutants
Author(s): Kei Namba, PostDoc, Technische Universität Berlin
Kei Namba, PostDoc, Technische Universität Berlin
Oral: PDFAbstract
Case study: Lake Tegel in Northwest Berlin
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Has not reached „good“ ecological status of the EU‘s Water Framework Directive (WFD)
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Serves as reservoir for drinking water through bank filtration and artificial groundwater recharge
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Stable control of algal biomass particularly of cyanobacteria remains a management priority (Chorus et al. 2004)
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Risks of pollutants on human health and environment-Early-warning by local authority (LAGeSo) –public awareness and communication issue
Possibles causes
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Occurrence of genus Tychonema producing anatoxin-a: The need for further investigation of potentially toxic, non-bloom forming cyanobacteria in less eutrophic water bodies (Fastner et al., 2018)
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Wastewater residue in surface and groundwater: Capacity to remove contaminants through bank filtration in Berlin (Massman et al., 2004)., overflows from the combined sewer system
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Pharmaceutical micro-pollutants: The importance of lake specific mechanisms- inflow and outflow balances and seasonal density stratification for the transport of the micro-pollutants (Schimmelpfennig et al., 2016)
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Climate change:Relationships between climate change and Harmful Algal Blooms (HAB) (Gobler 2020; Glibert 2020; Neerugatti et al., 2022)
Where we stand now
Partnerships for technical assessment with (Armin Dolatimehr, German Environmental Agency)
Challenges:
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Assessment of regulatory conditions for sampling and installing decentralized treatment system
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Increased energy costs for treatment
18 January 2023, 15:35 (CET)