Purification Performance of Filtration Process for Pig Slurry Using Marine Sands, Silty Loam Soils, Fly Ash and Zeolite

Filtration is a simple ecological process for the treatment of effluents. This research examined physicochemical properties micronutrients, macronutrients, and heavy metals (HM) removed after slow filtration pig slurry (PS) through multiple media: sands, silt loam soils, fly ash, zeolite. The objective was to find new layer that can be added our constructed wetland (CW) improve its efficiency study how reacts these natural materials. achieved an approximate removal rate 99.99% total suspended solids (TSS) nitrogen 61, 94, 72, 97%, respectively, electrical conductivity (EC), turbidity, chemical oxygen demand (COD), five-day biological (BOD5). two soil 1, zeolite, had macronutrient reduction median 60%, whereas 2, 3, 4, ash released macronutrients such as Na, Ca, Mg. All media nearly micronutrient Fe Zn. Cu over 86% except sand 1 2 which reduced it only 46%; overall Mn more than 80% 3 where 9%. Zeolite capacity HM opposed some HMs (Ni, Cu). inexpensive abundant sound technically financially seems ideal cost-efficient slurry.