University of Tabriz Journal of Civil and Environmental Engineering 2008-7918 49 97 2020 02 20 Wastewater Treatment, Pre-Fermentation, Duration of Aeration, Highly polluted Wastewater. Wastewater Treatment, Pre-Fermentation, Duration of Aeration, Highly polluted Wastewater. 15 20 7296 10.22034/ceej.2020.7296 FA Iman Ajideh Jouneqani Chemical Engineering Department, Arak University, Arak Alireza Fazlali Chemical Engineering Department, Arak University, Arak Reza Davarnejad Chemical Engineering Department, Arak University, Arak Journal Article 2016 08 15      Slaughterhouse waste contains many organic matters, suspended solid particles (SS), oil and lipid, nitrogen and phosphate and biological infiltration of these pastes for removing much organic matters has special efficiency because of high concentration of organic load and nitrogen (Merzouki et al., 2005). The aim of the present study is to examine the effect of pre-fermentation and duration of aeration on removing the pollutant from waste containing COD, ammonium and phosphate.      Slaughterhouse waste contains many organic matters, suspended solid particles (SS), oil and lipid, nitrogen and phosphate and biological infiltration of these pastes for removing much organic matters has special efficiency because of high concentration of organic load and nitrogen (Merzouki et al., 2005). The aim of the present study is to examine the effect of pre-fermentation and duration of aeration on removing the pollutant from waste containing COD, ammonium and phosphate. https://ceej.tabrizu.ac.ir/article_7296_d1a186fa23f00d7497b3ed9a24baaa4d.pdf