Poly Aluminum Chloride  
 
 

 Analysis Of Poly Aluminum Chloride




Result Unit
Description
Yellowish Liquid
 - Appearance
10±1
 (w/w)% Al2O3
1.2-1.3 gr/cm3 Density
3.5-5 in 1%
PH

 

 

 

 

Uses Of Poly Aluminum Chloride

Coagulation–Flocculation as a relatively simple physical–chemical technique was applied in this work.Polymeric forms of metal coagulants which are increasingly applied in water treatment are not well documented in leach ate treatment. This study examined poly-aluminum chloride (PAC) and aluminum sulfate (alum) in treating apartially stabilized leach ate, and compared attained results in respect to theremoval of chemical oxygen demand (COD), turbidity, color and total suspended solid (TSS). Series of coagulation– flocculation tests were carried out to optimize the coagulant dose, pH, and operating conditions (speed and time for rapid and slow mixing). Optimum coagulant dose (OpCD) and pH were respectively found at 1.9 g/L and 7.5 for PAC, and 9.4 g/L and 7 for alum. A concurrent optimization of speed and time of mixing resulted in a considerable enhancement in COD removal: 84.50% and 56.76% for alum and PAC, respectively.Using PAC, almost complete removals for physical parameters of leach ate(turbidity: 99.18%, color: 97.26%, and TSS : 99.22%) were achieved; whereas alum showed inferior removal (turbidity 94.82%, color 92.23%, and TSS 95.92%). How ever, results revealed PAC is not as efficient as alum for COD elimination,where the alum dose (9.4 g/L) was about five fold that of PAC(1.9 g/L)