Microalga is the only feedstock that has the theoretical potential to completely replace the energy requirements derived from fossil fuels. However, commercialization of this potential source for fuel applications is hampered due to many technical challenges with harvesting of biomass being the most energy intensive process among them. The fresh water microalgal species, Scenedesmus abundans, h...

The effects of the cationic surfactant (cationic cetyl trimethyl ammonium bromide, CTAB) on the improvement of the sludge dewaterability using the cationic flocculant (cationic polyacrylamide, CPAM) were analyzed. Residual turbidity of supernatant, dry solid (DS) content, extracellular polymeric substances (EPS), specific resistance to filtration (SRF), zeta potential, floc size, and settling r...

Harvesting microalgae from liquid culture is a difficult issue to solve and most commonly done through settling. However, settling slow process on its own generally needs be induced chemically or by introducing stress the culture. Polymeric, cationic substances, such as cationised starch chitosan, are often used for flocculation These large, positively charged molecules form large clusters with...

The use of conventional flocculants such as Aluminum sulphate (Alum) alone to treat the wastewater may be insufficient get required turbidity, suspended solids removal. It also requires relatively a long residence time. Magnetic flocculation is one techniques used for increasing efficiency turbidity In present study, three sets experiments are carried out in order investigate possibility solid ...