Sulfate

This research proposes a two-stage process for the removal of sulfate from a nano-filtration (NF) reject stream. In Stage 1, calcium chloride is used to partially remove the majority of sulfate as calcium sulfate precipitate while the remaining sulfate is removed in Stage 2 as calcium sulfoaluminate

Activated carbon was developed from coconut coir pith using ZnCl2 and investigated to assess the possible use of this adsorbent for the removal of sulfate from water. The influence of various parameters such as agitation time, sulfate concentration, adsorbent dose, pH and temperature has been studie