Anaerobic degradation kinetics of reactive dye with different carbon sources

This study aims to investigate the anaerobic degradation kinetics of reactive dye, C.I. Reactive Red 141 (Evercion Red H-E7B) by partially granulated anaerobic mixed culture using three carbon sources, namely modified starch (MS), polyvinyl alcohol (PVA) and acrylic size (AS) during batch incubation. There is a first-order kinetics reaction in the decolorization processes using MS and PVA as carbon sources, while a zero-order kinetics relationship describes the decolorization process for the AS carbon source. The k values and color removal rate of decolorization with MS carbon source was higher than those of PVA and AS carbon sources. This is because the MS carbon source was well degraded in comparison to AS and PVA, respectively This study also found dye reduction could be enhanced through the addition of MS as a carbon source. The decolorization rates increased with decrease in dye concentrations of RR 141. In contrast, the decolorization rates increased with increase in COD concentration.     

Applying electromagnetic surveys as pre-screening tools prior to open dump mining

Journal of Material Cycles and Waste Management - The electrical resistivity tomography (ERT) survey is a common geophysical survey for characterising waste in final disposal sites. However, the...     

Evaluation of the potential of refuse-derived fuel recovery in the open dump by resistivity survey prior to mining

Journal of Material Cycles and Waste Management - Currently, there is no technique to characterise the waste composition that can be processed into refuse-derived fuel in the open dumpsite. This...