were based on 6 samplings collected for 3 months from May to
July, 2012. Chemical analysis was performed according to the Standard
Method of Water and Wastewater [14].
All experiments were undertaken in triplicates. The chemical
oxygen demand (COD), biological oxygen demand (BOD5) and
ammonia strength of the leachate varied between 2336, 147 and
2550 mg/L, while the boron and total iron content was identified
to be 7.50 and 9.31 mg/L, respectively. The mean characteristics
of the leachate samples are presented in Table 1. To recognize
the environmental risks of the leachate, the achieved parameters
values were compared with the Malaysian Environmental Quality
(Control of Pollution from Solid Waste Transfer Station and Landfill)
Regulations 2009, under the Malaysia Environmental Quality
Act 1974 [