Table 3.

Treatment of textile and industrial wastewater with magnetic-chitosan gel beads at concentration of 1.5 g/l and 90 min of incubation period.

Parameter	Untreated	Treated	Paired t test
			t	P value
a. Textile wastewater
pH	7.14 ± 0.14	8.63 ± 0.25	6.92	< 0.001*
TSS (mg/l)	1471.67 ± 6.51	492.67 ± 4.73	370.03	< 0.001*
TDS (mg/l)	684.67 ± 4.50	35.33 ± 3.51	168.91	< 0.001*
COD (mg/l)	1062.1 ± 9.64	75.67 ± 15.37	296.80	< 0.001*
EC (µmhos)	1387.33 ± 8.50	653.33 ± 18.58	47.35	< 0.001*
PO4 (mg/l)	32.67 ± 2.51	2.54 ± 1.41	46.93	< 0.001*
b. Industrial wastewater
pH	7.47 ± 0.11	8.66 ± 0.45	20.95	0.002*
TSS (mg/l)	853.67 ± 7.02	492.33 ± 6.51	46.35	< 0.001*
TDS (mg/l)	552.67 ± 9.45	54.67 ± 3.51	172.71	< 0.001*
COD (mg/l)	1187.33 ± 6.98	234.33 ± 3.52	106.33	< 0.001*
EC (µmhos)	1069.67 ± 14.01	513.67 ± 4.73	52.46	< 0.001*
PO4 (mg/l)	85.34 ± 3.05	5.12 ± 0.07	46.42	< 0.001*