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

Table 3

Complete analysis of the raw waste water and different treated effluents.

Parameter	Raw	Blank	% R	1 g/l	%R 1 g/l	2 g/l	%R 2 g/l	3 g/l	%R 3 g/l	4 g/l	%R 4 g/l	5 g/l	%R 5 g/l
pH	7.5	7.9		8.0		8.0		7.8		7.7		7.5
EC (μS)	576	587		595		600		604		607		614
TDS (mg/l)	371	378		383		386		389		391		395
Turbidity (NTU)	111	87	22	68	21	62	28	59	32	57	34	53	39
COD	326	256	22	134	48	98	61	83	67	70	72	65	75
BOD	243	196	20	104	47	71	63	60	69	51	74	47	76
BOD/COD	0.75	0.74		0.72	0.73			0.72		0.72		0.72
TSS	124	70	43	51	28	47	33	45	36	45	36	44	38
FC	5.5 × 10^7	4.9 × 10^6	90.26	4.2 × 10^5	91.30	3.4 × 10^5	93.00	2.8 × 10^5	94.33	2.4 × 10^5	94.99	2.0 × 10^5	95.99