Table 3.

Biosorption of chromium by application of different microbes.

Microbial group	Microbial biosorbent	pH	Temperature (°C)	Time	Initial metal ion concentration (mg L-1)	Removal efficiency (%)	Reference
Fungi	Saccharomyces cerevisiae	5	25	3 h	90	99.6	Rossi et al. (2018)
	Aspergillus sydowii	5	28	7 d	50	24.9	Lotlikar et al. (2018)
	Arthrinium malaysianum	3	30	20 h	1000	67	Majumder et al. (2018)
	Penicillium oxalicum SL2		30	144 h	1000	100	Long et al. (2018)
	Aspergillus niger (CICC41115)	7	37	84 h	50	100	Gu et al. (2015)
	Saccharomyces cerevisiae	3.5	25	24	200	85	Mahmoud and Mohamed (2017)
	Aspergillus sp. FK1	5		7 d	557	65	Srivastava and Thakur (2006b)
Bacteria	Acinetobacter sp. B9	7	30	24 h	7.0	67	Bhattacharya and Gupta (2013)
	Enterobacter cloacae strain CTWI-06	7	37	92 h	500	94	Pattnaik et al. (2020)
	Escherichia coli VITSUKMW3	7.5	30	5 h	20	40	Samuel et al. (2012)
	Staphylococcus aureus strain K1	8	35	24	100	99	Tariq et al. (2019)
	Bacillus subtilus PAW3	6	35	20	100	100	Wani et al. (2018)
	Cellulosimicrobium Funkei strain AR6	7	35	120	250	80.43	Karthik et al. (2017)
	Acinetobacter sp. AB1	10	30	72 h	50	100	Essahale et al. (2012)
	Streptomyces sp. MC1	7.4	30	72 h	50	52	Polti et al. (2011)
	Bacillus subtilis MNU16	7	30	72 h	50	75	Upadhyay et al. (2017)
	Pseudomonas sp. JF122	6.5	30	72 h	2.0	100	Zhou and Chen (2016)
	Acinetobacter guillouiae SFC 500 – 1A	10	28 ± 2	72	10	~62	Ontañon et al. (2015)
	B. mycoides 2000AsB1	7	30	25 h	25	100	Wang et al. (2016)
	Streptomyces werraensis LD 22	7	41	7 d	250	51.7	Latha et al. (2015)
	Arthrobacter sp. Sphe3	8	30		45	100	Ziagova et al. (2014)