Table 2. Optimum Operating Conditions of Cadmium Adsorption Using Agricultural and Fruit Biomasses.

biomass type	biomass	removal yield (%)	pH	particle size (mm)	initial concentration (ppm)	dosage (g/L)	temperature (°C)	reference
agricultural	corn power	79.36	6.5	0.105	25	10	25	(43)
	activated carbon	83.00	5.7		20	2.5		(44)
fruit peel	grapefruit power	85.94	4.5	0.25	100	5	25	(45)
agricultural	corn cob	86.00	6	0.50	100	5	25	this work
agricultural	palm bagasse	87.00	6	0.355	100	5	25	this work
fruit peel	lemon peels	88.00	6	0.50	100	5	25	this work
fruit peel	orange peels	85.00	6	1.00	100	5	25	this work