Can polyelectrolytes be used in water and wastewater treatment?

The combination of polymeric characteristics and electrolyte behaviour endow aqueous polyelectrolytes with a strong potential for use in water and wastewater treatment. A correct and effective application of polyelectrolytes or polyelectrolyte complexes can remove different types of contaminants from aqueous solutions efficiently.

Are polyampholytes useful for water treatment?

Literature review reveals that polyampholytes have very little utility for water treatment (Bratby 2006). According to literature, cationic polyelectrolytes have been most widely used as primary coagulants, however non-ionic and anionic polyelectrolytes are mostly used as flocculants (Bratby 2006).

Can polyelectrolytes be used with inorganic coagulants?

So, organic polyelectrolytes were introduced in conjunction with inorganic coagulants for the treatment of water and wastewater. The optimum dosage of polyelectrolytes in all kinds of water and industrial wastewater can be very low if it will be used in conjunction with inorganic coagulants.

Are polyelectrolytes good for removing sludge?

So there is a requirement for green technology for its removal. Polyelectrolytes can be used for treating different kind of industrial water with great success. Sludge quantity is much reduced when polyelectrolytes are used in removal of suspension.

Are polyelectrolytes toxic in treated water?

It is concluded that low dosages of polyelectrolytes are required for coagulation- flocculation process so the question of toxicity in treated water is ruled out. That’s why it should be understood that it is eco friendly and green technology for removal of suspension from water and industrial wastewater.

What are the applications of organic polyelectrolytes in potable water production?

Introduction The main applications of organic polyelectrolytes in potable water production are in coagulation and flocculation, and in the dewatering of treatment plant sludges. The water production processes are usually followed by sedimentation and filtration, although with only slightly contaminated waters the sedimentation step may be omitted.