English Abstract A pilot plant study on the behaviour of chlorite during
artificial recharge of river water has revealed that under conditions of the
dune recharge of riverwater a high degree of removal can be obtained. The
rate of removal was influenced by the content and the nature of the organic
material in the ground, the redox potential and temperature. Under the most
unfavourable conditions, i.e. during aerobic percolation in clen dune sand
at water temperatures of less than 10 C, the half time of degradation was
approximately 15 days.