Pengaruh Pemberian Effective Microorganisms-4 (Em4) Dalam Biofilter Untuk Men…

Abstract Palm oil industrial liquid waste is rich in Nitrate and Phosphate and thus need to be processed before being flown to environment. A study aims to reduce the nitrate and phosphate in that waste by using a biofilter that was added with EM4 has been conducted in April-May 2019. There were 3 treatments applied, namely the addition of 0.12 ml/L, 0.15 ml/L and 0.18 ml/L EM4 in the anaero…