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Reviste: » Environmental Engineering and Management Journal» European Journal of Science and Theology» Sănătate Sport și Nutriție
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EFFECT OF ORGANIC CARBON LOADING (OCL) ON SIMULTANEOUS NH4 +-N AND Mn2+ REMOVAL IN DRINKING WATER USING A BAF SYSTEM Autori: Hassimi Abu Hasan, Noorhisham Tan Kofli, Siti Kartom Kamarudin, Siti Rozaimah Sheikh AbdullahData aparitiei: November/2011 Revista: Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 ISSN: 1843 - 3707 ![]() Abstract:
The effect of organic carbon loadings (OCLs) on NH4+-N and Mn2+ removal was investigated using a novel approach of biological aerated filter (BAF) for drinking water treatment system. Three different OCLs of 0.2, 0.5 and 1.0 kg COD/m3.d were loaded into BAF which was operated in batch-wise at 24 h hydraulic retention time. The experiments resulted in higher COD, NH4+-N and Mn2+ removal percentages at OCL of 1.0 kg COD/m3.d with removal of 97.1%, 97.4% and 94.7%, respectively. The +-N effluent concentration at this phase was lower than Malaysian standard of 1.1 mg NH4+-N/L and as for Mn2+, the effluent was 0.3 Mn2+ mg/L. However, at lower OCLs of 0.2 and 0.5 kg COD/m3.d, the removals were only 47.6% and 93.1% for NH4+-N and 35.4% and 44.2% for Mn2+, respectively. Therefore, increasing organic carbon loaded to BAF system has increased the simultaneous NH4+-N and Mn2+ removal degree in drinking water. |