Dominance of Oscillospira and Bacteroides in the bacterial community associated with the degradation of high-concentration dimethyl sulfide under iron-reducing condition

Table 1 The first-order rate constant (k) of DMS-degradation, half-lives (t _1/2), and correlation coefficient (r ²) in the last enrichment cycle of microcosm experiments, and the removal efficiency of DMS at the end of the last enrichment cycle

Electron acceptor	k (day⁻¹)	r ²	t _1/2 (day)t	Removal efficiency (%)
Abiotic control	No fit ^a	No fit ^a	_ ^b	0.04 ± 0.001
No acceptor	0.00610 ± 0.00058	0.94	113.6	18.47 ± 0.036
O₂	0.01866 ± 0.00139	0.96	37.1	50.80 ± 0.118
Fe³⁺	0.02355 ± 0.00173	0.96	29.4	60.45 ± 0.011
HCO₃ ⁻	0.02267 ± 0.00256	0.92	30.6	58.01 ± 0.021
NO₃ ⁻	0.02123 ± 0.00242	0.92	32.6	54.01 ± 0.035
SO₄ ²⁻	0.01106 ± 0.00139	0.90	62.7	30.40 ± 0.072

ISSN: 1869-2044