Disposal of Heavy Transition Cd<sup>2+</sup> Ions from Aqueous Solution Utilizing Nanosized Flamboyant Pod (<i>Delonix regia</i>): Table 4

Table 4: Effect of contact time on Cd²⁺ ions RE and q_e at different initial concentrations (10 mg/L, 30 mg/L, and 50 mg/L) by D. regia.


Time (min)	Cd²⁺ RE% at C_o (10)	Cd²⁺ RE% at C_o (30)	Cd²⁺ RE% at C_o (50)	q_t at C_o (10)	q_t at C_o (30)	q_t at C_o (50)	C_t at C_o (10)	C_t at C_o (30)	C_t at C_o (50)

20	90.97	90.20	80.99	1.52	4.51	6.67	0.90	2.93	10.00
40	93.57	94.07	93.16	1.56	4.70	7.76	0.64	1.78	3.42
60	93.98	92.80	91.08	1.57	4.64	7.59	0.60	2.16	4.46
80	96.29	95.40	90.87	1.61	4.73	7.57	0.37	1.37	4.56
100	93.88	88.92	86.86	1.56	4.45	7.24	0.61	3.32	6.57
120	92.95	91.86	88.55	1.55	4.58	7.38	0.70	2.50	5.73