Numerical Modelling of Constructed Wetland using Software HYDRUS 2D

Abstract One of the problems involving water bodies is pollution sources, which later becomes parent various social, economic, and health problems. these conditions can be overcome by utilizing phytoremediation through constructed wetlands. HYDRUS a software that offers easy modelling pollutant decay mechanisms in wetlands using finite element method. This study aims to show analyse how model mechanism wetland The parameters observed are time for pollutant, namely ammonia, nitrate, inorganic phosphorous, reach outlet, response curve loading on model. From simulation, it inferred maximum velocity going 8.11 m/day, or 811 cm/day. dominating around 160 cm/day, 1.6 m/day. transport also accordance with theoretical impulse loading. result yields effectivity simulated wetland, 90.33% ammonia 90.26% phosphorous. quite optimistic may caused assumptions made model, goes simplification It differences plants assumption. In plant used grass, does not specify what kind grass. Meanwhile, physical simulation uses bamboo.