Author:Schoeman, JJ; Steyn, ADate:30 May 2003The nitrate-nitrogen concentration (>6 mgA) and the salinity (>1000 mg/l TDS) of many borehole waters in rural areas in South Africa are too high for human consumption. Therefore, an urgent need for water denitrification and water desalination ...Read more
Author:Schoeman, JJ; Steyn, A; Scurr, PJDate:Sep 1996Reverse osmosis (RO) and physical/chemical technology were evaluated for treatment of neutralized spent acid effluent (seepage) containing high concentration levels of TDS (7500mg/l), Ca (400 mg/l), Cr-V1 (42 mg/l), nitrate-nitrogen (827 ...Read more