Table 1.

Physical and chemical analyses of leachate samples collected from sanitary landfills in Alexandria, Egypt.

Parameters	Unit	Leachate samples
n = 6		Min	Max	$\overline{x}\pm \text{SD}$
PH	–	7.0	7.8	–
Conductivity	μS/cm	35,260	42,857	40921 ± 861
Total dissolved solids	mg/l	24,954	30,482	27452 ± 605
Chlorides	mg/l	9500	16,250	11387 ± 119
Total suspended solids	mg/l	3278	14,464	12985 ± 137
Chemical oxygen demand	mg/l	12,850	16,350	15629 ± 206
Biochemical oxygen demand	mg/l	9620	11,700	10824 ± 95
Total nitrogen	mg/l	382	954	583 ± 76
Ammonia-N	mg/l	190	410	321 ± 68
Nitrate-N	mg/l	0.36	2.9	1.4 ± 0.2
Sulfates	mg/l	298	720	596 ± 87
Phosphates	mg/l	0.29	0.52	0.37 ± 0.04