Biološki tretman fenolne otpadne vode
Many industries generate phenolic wastewater of acidic nature. Neutralization with sodium hydroxide generates the phenolic wastewater with high total dissolved solids. Both phenol and ionic concentration of total dissolved solids are inhibitor to biological treatment processes. In this paper described a process of biological treatment of waste water with particular reference to the treatment of waste water with a high concentration of phenol, and the total dissolved solids in a reactor with a moving-bed biofilm. The efficiency of the bioreactor with a moving-bed biofilm for removal phenolic solution with a high chemical oxygen consumption is analyzed. It is also studied the efficiency of removing phenol and dissolved particles, depending on the hydraulic retention time.