Grey Water Treatment in Vertical Flow Constructed Wetland

Civil Engineering

In These Paper Firstly Gery Water Treatment Was Carried Out Design Of Two Stage Vertical Flow Constructed Wetland System including: vegetation (the presence of common reeds ‘‘Canna Indica”).Grey water is water from bathroom, sinks, showers and washing machines. Reusing grey water for irrigation reconnects urban residents and our backyard gardens to the natural water cycle. Constructed Wetland treatment system has proved to be an effective method of recycling the grey water. In this paper, the effectiveness of the wetland plant Canna indica and waste biomass in the treatment of Grey water by Vertical subsurface flow root zone system were studied. A laboratory scale Two Stage Vertical flow reed bed was constructed, the media were biomass adsorbent from newspaper along with coarse aggregate and nine numbers of Canna indicia species were grown. The system was fed at the flow rate of 500 liters/day. Consequently adsorption, filtration and root zone treatment takes place. The raw Grey water and treated water were collected periodically and tested for quality by standard methods. It is seen that reed bed unit is reducing the concentrations of TSS,TDS,BOD,COD by 63 % ,79% , 86%, 53% respectively on an average. The treated Grey water can be used for gardening or for flushing the water closet.

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