Figure 5 shows the results of the physico-chemical analysis
of the permeate solution. Prior to TOC removal efficiency, it
was found that more than 99% rejection was obtained which
indicate that almost all the large macromolecular organic
carbon had been retained from passing through membrane
matrix. Meanwhile, the overall TDS and conductivity removal
efficiency of the DCMD system were very similar, showing
approximately 98.7%. With respect to colour and turbidity
separation efficiency, at least 97% rejection could be achieved
using DCMD system. Another unique feature of this attractive
technology is its capability in reducing the sulphate content in
the rubber effluent to a very low level. With these excellent
performances, the permeate produced is of high quality and
could be reused for industrial process.