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Effect of filter media and hydraulic retention time on the performance of vertical constructed wetland system treating dairy farm wastewater
Environmental Engineering Research
This study deals with the dairy wastewater treatment using laboratory scale vertical flow (VF) constructed wetlands with the Canna indica plantation over wetland beds due to phytoremediation capabilities. Three laboratory scale VF CWs (CW-A, CW-B and CW-C) each with an area of 0.135 m 2 filled with gravel (CW-A: 20 mm; CW-B:10 mm gravel) and sand (CW-C) receiving 0.04 m 3 d -1 dairy wastewater were operated for the wastewater purification. Each unit was operated at three hydraulic retentiondoi:10.4491/eer.2020.436 fatcat:kj6f4ubwcnfjrk3xxf5e43hh2e