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Assessing the feasibility of wastewater recycling and treatment efficiency of wastewater treatment units

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Abstract

Wastewater reuse can significantly reduce environmental pollution and save the water sources. The study selected Cheng-Ching Lake water treatment plant in southern Taiwan to discuss the feasibility of wastewater recycling and treatment efficiency of wastewater treatment units. The treatment units of this plant include wastewater basin, sedimentation basin, sludge thickener and sludge dewatering facility. In this study, the treatment efficiency of SS and turbidity were 48.35–99.68% and 24.15–99.36%, respectively, showing the significant removal efficiency of the wastewater process. However, the removal efficiencies of NH3-N, total organic carbon (TOC) and chemical oxygen demand (COD) are limited by wastewater treatment processes. Because NH3-N, TOC and COD of the mixing supernatant and raw water are regulated raw water quality standards, supernatant reuse is feasible and workable during wastewater processes at this plant. Overall, analytical results indicated that supernatant reuse is feasible.

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Authors and Affiliations

  1. Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan

    Jie-Chung Lou & Yung-Chang Lin

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  1. Jie-Chung Lou
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  2. Yung-Chang Lin
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Correspondence to Jie-Chung Lou.

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Lou, JC., Lin, YC. Assessing the feasibility of wastewater recycling and treatment efficiency of wastewater treatment units. Environ Monit Assess 137, 471–479 (2008). https://doi.org/10.1007/s10661-007-9782-3

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  • DOI: https://doi.org/10.1007/s10661-007-9782-3

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