What is the use of anionic polyacrylamide in water and wastewater treatment?

The main use of anionic polyacrylamides in water and wastewater treatment is as coagulant aid to bridge the coagulated particles formed when an inorganic coagulants such as alum has been used as the primary coagulant. Fig. 2. Hydrolysis of polyacrylamide

How is palm oil mill effluent treated in Malaysia?

Treatment of Palm Oil Mill Effluent (POME) requires a sound and efficient system to face the current challenge of wastewater disposal in Malaysia. To comply with the discharge standard regulation, environmental protection and economic viability, several treatment technologies have been used.

What is palm oil mill effluent?

Most of palm oil mills have to deal with their highly polluting wastewater that is known as palm oil mill effluent (POME). This has led to the emergence of a new treatment technology with environmental friendly approach.

How to treat palm oil mill effluent (POME) by coagulation- flocculation?

Treatment of Palm Oil Mill Effluent (POME) by Coagulation-Flocculation using different Natu ral.. .. efficiency from POME. Series of experiments were carried out using different conditions and parameters. The and temperature. T he best removal of residue oil was accom plished using 0.5g/l of powdered chitosan with the range of 50-70°C.

How does pH affect cationic polyacrylamide flocculants?

The increase of polyelectrolyte uptake with pH gives a greater coverage per particle and hence a looser (semi-structured) floc agglomerate. The effectiveness of these cationic polyacrylamides (30% cationic character) as flocculants diminished with increasing pH.

Which Polyacrylamides are used in the thickening process of colliery effluent treatment?

1. INTRODUCTION Polyacrylamides are used in the "thickening" process of colliery effluent treatment. The wastewater contains mainly clay particles, in suspension, which are flocculated using non-ionic and anionic polyacrylamides, which have molar masses in the range of 7-15 million g/mol.