Study on flocculation efficiency of okra gum in sewage waste water

Okra gum, a polysaccharide consisting of D-galactose, L-rhamnose and L-gala cturonic acid is used as food additive. In the present investigation, the f locculation efficiency of okra gum for the treatment of sewage waste water is tested. The flocculation study has been done by standard jar test method . The effect of polymer dose, contact time and pH on the per cent removal o f solid waste is reported. Okra gum is found to be very effective and to be comparable with commercial flocculants. X-ray analysis of the flocs is als o reported to support the interaction of sewage waste with the gum. (a) Plot of per cent removal of suspended solid vs. polymer dose of sewage waste ((.)),temperature = 32 degreesC, contact time = 1 h. (b) Plot of per cent removal of total dissolved solids vs. polymer dose of sewage waste (o) , temperature = 32 degreesC, contact time = 1 h.