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

Table 4

The influent loadings and volume reductions for nitrate and sulfate under different influent sulfate concentrations.

Influent sulfate contents (mg/l)	Influent sulfate loading (g/m^3 d)	Volume sulfate reduction (g/m^3 d)	Nitrate loading (g N/m^3 d)	Volume denitrification rate (g N/m^3 d)	Sulfate in effluent (mg/l)	Nitrate in effluent (mg N/l)	References
200	566.3	155.4	57.8	55.7	145.3	0.7	This study
250	707.3	166.3	112.5	111.6	191.3	0.3	This study
300	853.3	226.7	140.5	134.6	221.5	2.1	This study
42	118.5	50.7	56.5	55.5	24	0.3	[29]
92	262.6	109.6	139.5	133.8	54	2	[29]
78	216.8	85.3	141.7	136	46.5	2	[30]