Can polyaluminum chloride be used in water treatment?

In this study, synthesis and speciation of polyaluminum chloride (PAC) for application in water treatment was investigated using a colorimetric speciation method. It was possible to produce stable preparations of PAC solutions in which a relatively stable cationic polymer predominated.

What is a polyaluminium chloride preparation method?

The invention relates to a polyaluminium chloride preparation method, which belongs to the chemical field. The polyaluminium chloride comprises the following components by weight: 100-120 parts of bauxite, 150-180 parts of 20-30% of hydrochloric acid, 60-80 parts of calcium aluminate and 20-30 parts of calcium carbonate.

Can a cationic polymer predominate PAC solution?

It was possible to produce stable preparations of PAC solutions in which a relatively stable cationic polymer predominated. The mode of preparation has a dramatic effect on the composition of PAC preparation.

How Bauxite is used to prepare polyaluminium chloride?

According to the invention, bauxite is taken as a raw material to prepare polyaluminium chloride, the cost is low, and the prepared polyaluminium chloride has high degree polymerization and good adsorption effect. The invention belongs to chemical field, be specifically related to a kind of preparation method of poly aluminium chloride.

What are the synthesis parameters of aluminum chloride hexahydrate?

The synthesis parameters were concentration of aluminum chloride hexahydrate (0.4 to 0.8 M), basicity ratio (2.0 to 2.4), reaction temperature (60 to 80 °C) and time (180 to 360 min). The performance of PΑC for water treatment was also investigated. The monomeric, medium polymeric and colloidal species of PAC were determined by Ferron test method.

Why is polyaluminum chloride a good coagulant for water treatment?

Polyaluminum chloride (PAC) is highly effective coagulant for water treatment over conventional coagulants because of low dosage requirement, shorter flocculation time, smaller amount of sludge, high efficiency and low aluminum residual in treated water .