After the washing step, the waste wash water is contaminated by the extracted methanol, glycerol, soap and the residual catalyst. If the waste water is disposed without further treatment, loss of these materials and, potential environmental harm will result. Furthermore, significant quantities of this waste water are
produced [5].
After the washing step, the waste wash water is contaminated by the extracted methanol, glycerol, soap and the residual catalyst. If the waste water is disposed without further treatment, loss of these materials and, potential environmental harm will result. Furthermore, significant quantities of this waste water areproduced [5].
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