4. Conclusions
This study essentially focused on evaluating the efficiency
of a series of anaerobic ponds treating high organic
carbon and cyanide containing wastewater from a
tapioca starch factory. SMA of sludge obtained from
pond sediments as well from pond bulk liquid layer was
assessed in order to determine the relative conversion
rates in bulk liquid and sediment layer. Cyanide degradability
of sludge taken from the pond sediment layer was
also assessed. Furthermore, investigation on TSS settling
characteristics of starch wastewater was also carried
out.
The existing anaerobic pond system effectively removed
organic carbon and suspended solids. However