Abstract Development of cationic flocculants from lignocellulosic wastes not only eliminates the health and environmental concerns associated with use conventional chemicals, but also is way waste valorization. In present study, cellulose fibers extracted rice husk were cationized through an optimization method based on response surface methodology. The at optimal conditions had a zeta-potentia...

Arsenic is a carcinogenic metalloid that is currently regulated in drinking water. The levels of arsenic in finished water in an existing water treatment plant are exceeding the current regulation of 10 μg/L. One of the available technologies for arsenic removal from groundwater is adsorption onto coagulated flocs and in this field, ferric chloride is the most commonly used coagulant for arseni...

The analysis of perspective collection and concentration technologies excess biomass in the wastewater surface water biological treatment with use aquatic organisms has been carried out. scheme a life cycle proposed. technological approaches for three types: plants macroalgae; developed root system microalgae A strategy concentrating high efficiency coagulation-flocculation gravitational thicke...

This experimental study was conducted to investigate the effect of treatment of composting plant leachate by a coagulation-flocculation process. The effects of different dosages of coagulant and different pH values on the coagulation processes were compared. Ferric chloride and aluminium sulphate (alum) were tested as conventional coagulants. The experimental results show that a 18% removal of ...

In order to improve the removal efficiencies of SS and Fe3+ in anaerobic digestion reject water for subsequent biological treatment process, on basis single factor test early stage, response surface method was used, structure formed floc analyzed by magnetic flocculation. The optimum amounts powder, polyaluminum chloride (PAC) polyacrylamide (PAM) were 40.51 mg/L, 31.31 mg/L 4.05 respectively. ...