Mm. Sozanski, THE EFFECT OF INCREASED WATER SALINITY OF THE REMOVAL OF MICROPOLLUTANTS BY BIOLOGICAL CARBON FILTERS, Environmental technology, 16(11), 1995, pp. 1061-1071
The aim of this research was to find how the biological activated carb
on (BAC) filters operate in conditions of raised salinity and rapid ch
anges in organic pollutants concentration. The experiments were realiz
ed in bench scale and were continued for 18 months. The efficiency of
BAC was determined as organics removal by measuring the absorbance in
UV, COD and TOC. The result of the research proved that salinity up to
1000 mgCl./L has not disturbed the microorganisms growth. There was n
o influence of salinity on. COD and TOC removal. The absorbance measur
ed by UV in higher salinity showed about 10% lower effect of BAC. To g
ain the high effect of SAS and phenol removal on BAC in water of high
salinity the increased contact time was necessary. The very stable eff
ect of biodegradation on BAC was observed in conditions of rapid incre
ase of micropollutants concentration, regardless of water salinity.