Lee, Ju Young Kim, Tschung-Il Han, Mooyoung Hyunju Park 2024-01-12T06:34:01Z 2024-01-12T06:34:01Z 2023-11-22 2023-09 1944-3994 https://pubs.kist.re.kr/handle/201004/79825 https://www.deswater.com/vol.php?vol=307&oth=307|0|September%20%20|2023 This study investigated the efficacy of an algae harvesting system based on tailored bubble flotation in lakes prone to lake eutrophication. To improve algae removal, a bubble generator for adjusting the size and amount of bubble charge was applied to the customized algae removal system. A coagulant, polyaluminum hydroxy chloro sulfate, was optimized at 10 mg/L to maximize its efficacy in sludge recovery. Field tests demonstrated substantial reductions in total nitrogen (TN) and total phosphorus (TP) in sediments, with efficiencies exceeding 80% and 85%, respectively. The final TN and TP concentrations were 1.97 and 0.06 mg/L, respectively, showing overall improvement in the region where the algae harvesting system operated. In addition, suspended solids, Chl-a, and chemical oxygen demand concentrations decreased with algae removal, leading to improved water quality. Therefore, the tailored bubble flotation system presents a viable solution for efficient algae management and overall water quality improvement in lakes and reservoirs. English Taylor & Francis On-site algae harvesting system using tailored bubble flotation Article 10.5004/dwt.2023.29857 1 Desalination and Water Treatment, v.307, pp.222 - 231 Desalination and Water Treatment 307 222 231 N scie scopus 001110115200024 Engineering, Chemical Water Resources Engineering Water Resources Article LAKE EUTROPHICATION REMOVAL WATER-QUALITY Algal blooms Water quality Tailored bubble Flotation