Abstract
A Lo Constructed Wetland system was used to treat Wu-Lo Creek water that has been polluted by wastes discharged from animal farms. The polluted water contains 16.2–35.6 mg/L biochemical oxygen demand (BOD), and 64–188 mg/L suspended solids (SS) during the wet season (May through September) as well as 8.0 –104 mg/L BOD and 33.2–297 mg/L SS during the dry season (October through March next year). The constructed wetland was operated for two years. Results of water quality monitoring indicated 80.4–84.4% BOD and 93.2–95.3% SS removal during the wet season as well as 66.3–75.3% BOD and 69.3–97.1% SS removal during the dry season. Additionally, the wetland provides a living space for various plants and animals. In this study, the wetland effluent quality was monitored and the results were used to investigate the efficiency of constructed wetland for treating organic wastewater.
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