What is the coagulation removal rate of polyaluminium chloride (PAC)?

Without coagulation removal rates in a single pass of a medium-rate filter were about 50%. This was dramatically improved, to over 90%, by dosing polyaluminium chloride. PAC is directly and continuously dosed from the containers in which it is delivered at a rate of about 0.1ml/m 3 of the circulation flow.

Is there an alternative preparation procedure for polyaluminium chloride (PAC)?

An alternative preparation procedure for polyaluminium chloride (PAC), a common inorganic coagulant, is presented in this paper.

What is polyaluminium chloride used for?

Among the aforementioned products, polyaluminium chloride has become one of the most effective coagulant agents in water and wastewater treatment facilities with various applications, including removal of colloids and suspended particles, organic matter, metal ions, phosphates, toxic metals and color.

Which coagulant is more efficient PAC lab?

PAC lab seems to exhibit a slightly better performance, especially in doses of 50–100 mg Al/L. Regarding absorbance reduction ( Fig. 2 b) both coagulants are less efficient, however PAC lab is more efficient in almost all cases, except for coagulant dose of 10 mg Al/L.

Why is Pac Lab better than pac-18?

Due to these improved properties, PAC lab shows superior coagulation performance than PAC-18, when applied for the treatment of simulated (model) contaminated natural water, or for real wastewater (biologically pre-treated leachate) samples.

Can granular al be used to produce polyaluminium chloride?

An alternative way for the production of PAC should be desirable, resulting in a more effectively preparation route, regarding time and cost. In this paper, an alternative method for producing polyaluminium chloride is presented, based on the use of granular Al, as aluminium source.