నైరూప్య

Treatment of Wastewater Containing High Concentration of Phenol & Total Dissolved Solids in Moving Bed Biofilm Reactor

Arti D. Galgale , Neha B. Shah , Dr. Nirav G. Shah

Many industries generate phenolic wastewater of acidic nature. Neutralization with sodium hydroxide generates the phenolic wastewater with high TDS. Both phenol and ionic concentration of TDS are inhibitor to biological treatment processes. A study was carried out for biological treatment of phenolic wastewater with high total dissolved solid (TDS) concentration in moving bed biofilm reactor (MBBR). Three experiments were conducted in laboratory scale reactor to determine optimum hydraulic retention time (HRT) in the reactor at 1400 mg/L phenol concentration and 1500 mg/L TDS, effect of increased TDS (up to 19000 mg/L) on COD removal efficiency of the reactor and to study performance of the suspended and attached growth biomass in MBBR.