Assessment of Sewage Water Treatment Using Grinded Bauxite Rock as a Robust and Low-Cost Adsorption

Table 2

Physicochemical features of the wastewater.

Parameter	Unit	Minimum	Maximum	Average
pH	—	7.3	8.0
EC	mS	485.1	676.0	576.4
Turbidity	NTU	95	121	111.0
TDS	mg/l	325	406	66.4
COD	mg/l	274.0	370.0	326.0
BOD	mg/l	205	275	243.3
BOD/COD		0.74	0.75	0.745
TSS	mg/l	110	135	123.5
FC	MPN/100 ml	3.3 × 10^7	7.0 × 10^7	5.5 × 10^7

number of samples = 13.