Autohydrogenotrophic Denitrification Using the Membrane Biofilm Reactor for Removing Nitrate from High Sulfate Concentration of Water

Table 5

Distributions of hydrogen electron in electron acceptors at different influent sulfate contents.

Influent sulfate (mg/l)	Influent nitrate (mg N/l)	Nitrate (%)	Sulfate (%)	Oxygen (%)	Cr (VI) (%)	References
200	20	57.9	36.1	6.0		This study
250	40	71.8	24.4	3.8		This study
300	50	70.0	26.9	3.1		This study
42	20	76.0	15.9	8.1		[29]
92	50	81.2	15.2	3.6		[29]
78	50	87.5	12.5			[30]
78	10	69.9	29.2		0.9	[33]
78	5	55.7	42.8		1.5	[33]