Table 4

Table 4: Biosorption capacities of Bacillus spp. Q = capacity

Source or form, pretreatment	Metal	Q [mg/g]	pH	T [°C]	Ref.
B. cereus	As³⁺	32.4	7.5 (opt.)	30	[52]
B. cereus, soil sample, fixed-bed	Pb²⁺	59.2	6 (opt.)	25	[78]
B. cereus, soil sample	Pb²⁺	22.1	6 (opt.)	25	[78]
B. coagulans,H2SO4-treated	Cr⁶⁺	39.9	2.5	28 ± 3	[80]
A polysaccharide from B. firmus	Pb²⁺	1103	4.5 (opt.)	25	[55]
	Cu²⁺	860	4 (opt.)	25
	Zn²⁺	722	6 (opt.)	25
B. gibsonii S-2, soil sample, dried	Pb²⁺	333.3	4 (opt.)	40 (opt.)	[50]
B. lentus,ferm. waste	Cd²⁺	85	4.5	-	[70]
B. lentus, ferm. waste, HCl-treated	Cd²⁺	37	4.5	-	[70]
	Cu²⁺	30	4.5	-
	Zn²⁺	13	4.5	-
B. megaterium,H2SO4-treated	Cr⁶⁺	30.7	2.5	28 ± 3	[80]
B. pumilus, soil sample, fixed-bed	Pb²⁺	66.0	6 (opt.)	25	[78]
B. pumilus, soil sample	Pb²⁺	28.1	6 (opt.)	25	[78]
B. subtilis, dried	Cr³⁺	23.9	4 (opt.)	60 (opt.)	[51]
B.thuringiensis, NaOH-treated	Cd²⁺	48.3	6	28	[79]
B.thuringiensis, NaOH-treated	Cu²⁺	23.6	5	28
B. thuringiensi s, spore-crystal mixtures	Ni²⁺	41.8	6 (opt.)	35 (opt.)	[81]
B.thuringiensisvegetative cells	Ni²⁺	29.2	6 (opt.)	35 (opt.)	[81]
B. thuringiensis,spore-vegetative cells	Cr⁶⁺	54.7	2.0 (opt.)	25 (opt.)	[82]
B.thuringiensis,spore-crystal mixture	Cr⁶⁺	61.5	2.0 (opt.)	25 (opt.)	[82]
Unidentified, soil sample,powdered	Pb²⁺	92.3	3 (opt.)	25	[56]
Unidentified, soil sample,powdered	Cu²⁺	16.3	5 (opt.)	25