BMC Microbiology

Table 4 Percentage removal efficiencies of flocculants

From: Bioflocculation of pollutants in wastewater using flocculant derived from Providencia huaxiensis OR794369.1

Flocculants	Coal Mine Wastewater			Domestic Wastewater
Flocculants	COD	BOD	Sulphur	COD	BOD	Sulphur
Bioflocculant	90 ± 2.3^a	97.7 ± 6.2^a	72 ± 0.4^a	98 ± 1.5^a	92 ± 5.3^a	70 ± 2.3^a
Aluminium sulphate	98 ± 0.5^a	96 ± 0.9^a	94 ± 2.6^b	97 ± 1.3^a	82 ± 3.2^a	90 ± 3.4^b
Ferric chloride	94 ± 3.5^a	97 ± 4.3^a	97 ± 7.4^b	99 ± 2.3^a	86 ± 2.1^a	89 ± 4.1^b

The superscripts (a,b) show the statistically significant (p < 0.05); similar letters illustrate no statistical difference (p > 0.05)

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ISSN: 1471-2180

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