What stipulations apply to polyaluminium chloride?

The stipulations of this Standard apply when this document has been referenced and only for polyaluminium chloride intended for use in water treatment. Polyaluminium chloride is used in the water treatment industry for the coagulation of organic and mineral colloids prior to sedimentation and/or filtration.

What are the chemical requirements of polyaluminium chloride?

The chemical requirements of both forms of polyaluminium chloride are given below. Powdered PolyAC shall contain water-soluble aluminium of not less than 14 ± 0.3% w/w as Al, or 30% w/w as Al2O3. Liquid PolyAC shall contain water-soluble aluminium of not less than 2.16% w/w as Al or 10% w/w as Al2O3.

How is polyaluminium chloride dosed?

Polyaluminium chloride is dosed as a liquid solution. It is usually dosed via diaphragm pumps into a zone of high water turbulence to facilitate rapid mixing of the solution with the water. It is normal to pump the solution with additional dilution water into the water being treated in order to facilitate good mixing and rapid coagulation.

What is polyaluminium chloride used for?

Polyaluminium chloride is an effective coagulant used to remove microscopic suspended matter quickly over a wide range of turbidity, temperature and p H as encountered in natural surface waters. It is also effective for removing algae.

What is olyaluminium chloride?

olyaluminium Chloride is a guideline for the Polyaluminium Chloride suppliers to comply with in order to supply the Polyaluminium Chloride for PBAPP’s use in potable water supply service. 3.0 SPAN Requiremen ations 2013,Industry Code of Practice on Chemicals Classification and Ha

Is polyaluminium chloride safe for drinking water?

Polyaluminium chloride is to be manufactured from virgin raw materials so that it is safe for drinking water. The composition of Committee responsible for formulation of this standard is given in Annex S.