Ammonia

A lab-scale anaerobic/anoxic/aerobic (A1/A2/O) system with three cycles was developed to purify high-strength coking effluent, 8,000–15,000 mg chemical oxygen demand (COD)/L, characterized by high levels of toxic organics and ammonia, 1200–1700 mg phenol/L and 700–1800 mg ammoniacal-nitrogen/L. Besi

Landfill leachates (LFL) collected from Djebel Chekir are highly loaded with COD ranging from 4.5 to 45 g l–1, ammonia ranging from 0.64 to 4.99 g l–1 and salts (14–32 mScm–1). They also contain high concentrations of phenols and hydrocarbons. Consequently, LFL exhibit high toxicity since they compl

The sorption of ammonium ions and ammonia by the H+ form of sulphonic acid cation exchangers Amberlite 252, Lewatit 2629 and Relite C 360 from a solution containing NH4NO3 in the range of 0 to 0.214 equ/L and NH3 in the range of 0.353 to 0 equ/L was investigated to establish the possibility of their