Application of Chemically Modified and Unmodified Waste Biological Sorbents in Treatment of Wastewater

Table 1

Use of carbonized/uncarbonized waste protein sorbents in removal of pollutants from wastewater.

S/no.	Sorbents	Particle size	Contact time (mins)	% absorption of physicochemical parameters
				NO3^−	COD	BOD	DO	Chloride	TSS	TDS	EC. (U.S/CM)	pH
(1)	Carbonized goat hair	325 μm	60	99.89	90.54	93.21	88.00	88.35	99.95	99.88	95.00	8.00 (5.00)
(2)	Carbonized feather	325 μm		99.89	96.43	97.84	96.67	86.82	99.95	99.90	95.61	8.00 (5.00)
(3)	Carbonized goat hair	625 μm		99.69	81.07	71.30	62.00	73.29	99.81	99.84	94.38	7.00 (5.00)
(4)	Carbonized feather	625 μm		99.39	71.43	62.96	78.67	77.86	99.95	99.78	94.67	8.00 (5.00)
(5)	Uncarbonized goat hair	325 μm		99.49	75.71	71.60	81.33	83.79	99.95	99.31	93.75	7.00 (5.00)
(6)	Uncarbonized feather	325 μm		99.59	85.71	70.99	91.33	85.32	99.95	99.85	93.83	7.50 (5.00)
(7)	Uncarbonized goat hair	625 μm		96.02	49.11	56.79	52.00	56.62	99.90	99.92	93.75	7.50 (5.00)
(8)	Uncarbonized feather	625 μm		99.79	54.64	48.15	52.67	71.04	99.95	99.88	93.67	8.00 (5.00)
(9)	Carbonized goat hair	325 μm	120	99.89	92.68	96.91	92.00	89.13	99.95	99.29	95.50	8.00 (5.00)
(10)	Carbonized feather	325 μm		99.92	98.21	99.07	98.00	88.38	99.98	99.93	95.42	8.50 (5.00)
(11)	Carbonized goat hair	625 μm		99.79	80.54	68.52	72.00	76.60	99.88	99.88	95.21	7.80 (5.00)
(12)	Carbonized feather	625 μm		99.79	80.36	72.84	92.00	80.35	99.98	99.85	95.75	7.80 (5.00)
(13)	Uncarbonized goat hair	325 μm		99.69	78.57	67.28	90.67	87.69	99.95	99.48	92.50	7.50 (5.00)
(14)	Uncarbonized feather	325 μm		99.80	88.93	80.86	94.67	87.11	99.98	99.88	95.92	8.00 (5.00)
(15)	Uncarbonized goat hair	625 μm		96.91	56.96	62.96	78.67	63.49	99.95	99.94	95.00	8.00 (5.00)
(16)	Uncarbonized feather	625 μm		99.90	58.57	62.96	71.33	75.55	99.95	99.93	95.08	8.00 (5.00)

Value in parenthesis is pH result before treatment.