Biotechnology Letters, Vol.20, No.10, 959-961, 1998
Accumulation of intermediates in a denitrifying process at different copper and high nitrate concentrations
NO2- accumulation occurred in an upflow anaerobic sludge blanket reactor at 500, 1000 and 1500 mg NO3--N/l, but not after copper in the medium was increased to 28 mu g Cu2+/l. N2O release was not avoided even with 56 mu g Cu2+/l, at 1500 and 2500 mg NO3--N/l and reached 251 mg N2O-N /l