DESIGN OF LOW-COST DOMESTIC GREY WATER RECYCLING SYSTEM USING PLANT WETLAND

The present study successfully demonstrates the design and development of a low-cost domestic greywater treatment and recycling system using mesh filtration, sand filtration, activated carbon filtration, aeration, and Canna indica based phytoremediation. Experimental analysis revealed significant reductions in turbidity, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and Total Solids (TS). The treatment system achieved turbidity removal of 81.48%, BOD removal of 62.04%, COD removal of 57.14%, and Total Solids removal of 90.37%. The results indicate that the treated greywater is suitable for several non-potable applications such as gardening, toilet flushing, vehicle washing, and cleaning activities. The proposed system is economical, sustainable, environmentally friendly, and easy to operate. The implementation of such decentralized treatment systems can significantly contribute towards water conservation, wastewater reduction, and sustainable water resource management in urban and rural areas.

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