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All Journal International Journal of Biosciences and Biotechnology
Natthapong Proysurin
Asian Institute of Technology (AIT), 58 Moo 9, Km. 42, Paholyothin Highway, Klong Luang, Pathum Thani, 12120 Thailand
Biochemistry, Genetics & Molecular Biology Environmental Science

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Feasibility of Additional Wastewater Treatment Plants for Water Quality Improvement at Nong Han Lake, Sakon Nakhon, Thailand Pluem Chuaychoo; Natthapong Proysurin
International Journal of Biosciences and Biotechnology Vol 1 No 1 (2023): Special Issue February (Online First)
Publisher : Central Laboratory for Genetic Resource and Molecular Biology, Faculty of Agriculture, Udayana University

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Abstract

This study examined the possibility of additional wastewater treatment plants for the Nong Han Lake, Sakon Nakhon, Thailand. Hybrid constructed wetlands with horizontal and vertical flows (HFCW and VFCW) were selected for efficient nutrient removal, ease of operation and maintenance, and provision of recreational open space. The design is approximately 70,000 m2 (7 ha)—a decision made considering land availability for stabilization ponds where municipal wastewater carried through pipelines or sewerage accumulates, constructed wetland cells, and pumping stations. In HFCW and VFCW, nutrients are removed by the mechanisms of plant uptake and microbial metabolism. Results showed that HFCW reduced organic compounds, such as biochemical oxygen demand (BOD), by more than 90%, and VFCW removed at least 70% of nitrogen from wastewater. In addition, substantial reductions of up to 95% and 80% were obtained for total suspended solids (TSS) and phosphorus, respectively.
Co-Authors Pluem Chuaychoo