Nurfarahim Rusdiza
1, Hamidi Abdul Aziz
1, Mohd Omar Fatehah
1*1 School of Civil Engineering, Universiti Sains Malaysia, Pulau Pinang, Malaysia
*Corresponding Author: * Corresponding author: Mohd Omar Fatehah, School of Civil Engineering, Universiti Sains Malaysia, Pulau Pinang, Malaysia. Tel: +60-45996293, Fax: +60-45941009, , Email:
cefatehah@usm.my
Abstract
A study was conducted to treat stabilized leachate by applying polyaluminium chloride (PAC) and tobacco leaf extract as a coagulant
and coagulant aid. Experimental results indicated that the tobacco leaves were positively charged. The removal rate of the chemical
oxygen demand, using 1500 mg/L PAC as a sole coagulant, was approximately 63% and increased to 91% when 1000 mg/L PAC was
mixed with 1000 mg/L tobacco leaf. Additionally, 1500 mg/L PAC with 250 - 1000 mg/L tobacco leaf and 54% ammoniacal nitrogen
was removed, compared with only 46% reduction using 1500 mg/L with only 46% reduction.