Effectiveness of coagulation for removal of turbidity and biological growth in experimental salt gradient solar pond

Abstract

The present paper deals with effectiveness of coagulation for removal of turbidity and biological growth in experimental salt gradient solar pond. The result obtained indicated that coagulation is not able to bring down the turbidity below 1 NTU, while at 10 NTU starting turbidity, the optimum alum dose comes out to be 75 mg/I and it is 60 and 45 mg/l for 5 and 3 NTU respectively. This acquired level of turbidity is within acceptable limits for solar ponds, hence the experimentation with higher dose was not continued.

Keywords

• Coagulation
• Non convective zone
• Salinity
• Salt gradient solar pond
• Stratified layer
• Turbidity