It has been demonstrated that
cyanide can be removed both in anaerobic reactor systems and under aerobic
conditions. In a laboratory-scale
investigation the potential of natural filters including sand,
gravel, soil, coconut fibre and bamboo plait has been
assessed. The results indicate that wetland
systems might also be suited to treat tapioca starch
wastewater. Recently the ideas of water reduction and
energy conservation in the production process have been
studied.