Performance Evaluation of Constructed Wetland for Greywater Treatment with Phragmites karkaa and Canna latifolia
AbstractFor the treatment of greywater, a household level vertical by constructed wetland is designed to treat daily average greywater flow of 500 1. The treatment system consisted of two-chambered polyethylene container of 500 1 as a settling tank, a feedmg tank of 200 1 with a vertical flow bed planted wlth Phragmites karkaa (local reed) and Canna latifolia, and a 700 1 tank for collection of treated water. Locally available coarse sand and gravel were used as supporting media. The study were carried out for the removal of TSS, BOD, N2H4- at dfferent hydraulic loading rates. The optimum size of constructed wetland has been estimated as 0.99 m2 /p.e for reed bed and 1.023 2 m2 /p.e for bed at an effluent BOD of 10 mg/l
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