Measurement of pH, alkalinity and acidity in ultra-soft waters   

423

Lahav, O.; Morgan, B.E.; Loewenthal, R.E.

Abstract

Treatment of grain distillation wastewaters in an upflow anaerobic sludge bed (UASB) system   

433

Laubscher, A.C.J.; Wentzel, M.C.; Le Roux, J.M.W.; Ekama, G.A.

Abstract

Modelling of a falling sludge bed reactor using AQUASIM   

445

Ristow, N.E.; Hansford, G.S.

Abstract

Investigation of the immobilisation / mobilisation of nickel, copper, chromium and