Effect of floating plant growth rate on water quality performance of wetland in treating domestic sewage

Abstract A man-made system that mimics the function and structures of natural wetlands is called constructed wetlands. It able to treat sewage water with low technology, energy requirements, affordable easy maintain. However, how it works in tropical climates still unknown there a need figure out sustainability floating plants treating domestic sewage. This study aims investigate pollutant removal efficiency two selected plant species, hyacinth lettuce, The growth rate both will be examined for best-recommended wetland systems treatment. data was collected through pilot-constructed USM, Engineering Campus integrated species plants: lettuce. parameters studied were chemical oxygen demand (COD), total suspended solids (TSS), ammoniacal nitrogen (AN). findings reveal higher COD TSS at 40.96 % 43.94 respectively compared Water Lettuce 26.86 17.79 TSS. has slightly NH 3 -N 26.52 Hyacinth 24.35 %. In terms rate, lost but they have biomass uptake nutrients just small increment area coverage. Therefore, favourable implement plant-constructed as needs less maintenance than lettuce achieve discharge standard B based on Malaysia Wastewater Effluent Discharge Standards.