Denitrification of groundwater with methane as sole hydrogen donor Export

@article{citeulike:6092368, abstract = {It was examined, whether methane can be used as hydrogen donor for an in situ denitrification of groundwater. It is demonstrated, that groundwater can serve as liquid medium and that the denitrification can occur at 10°C. Efforts to enrich methanotrophic bacteria under anoxic conditions have not been successful. No methane oxidation occurred in the absence of oxygen. For this reason, the denitrification with methane must be performed in a two-stage process with aerobic methanotrophic bacteria producing metabolites, that are used as hydrogen donor by non-methanotrophic bacteria in anoxic areas. This kind of indirect denitrification was proved by quantifying nitrogen and nitrous oxide in enrichment cultures that were not stirred or shaken. Large numbers of non-methanotrophic bacteria being able to denitrify with methanol, acetate or proteins as sole hydrogen donor were enriched besides the methanotrophic bacteria under these conditions.}, author = {Eisentraeger, A.}, citeulike-article-id = {6092368}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/S0043-1354(00)00516-9}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0043-1354(00)00516-9}, doi = {10.1016/S0043-1354(00)00516-9}, issn = {00431354}, journal = {Water Research}, keywords = {groundwater, methane, methanotroph}, month = {June}, number = {9}, pages = {2261--2267}, posted-at = {2009-11-10 08:42:46}, priority = {2}, title = {Denitrification of groundwater with methane as sole hydrogen donor}, url = {http://dx.doi.org/10.1016/S0043-1354(00)00516-9}, volume = {35}, year = {2001} }

TY - JOUR ID - citeulike:6092368 L3 - citeulike-article-id:6092368 N2 - It was examined, whether methane can be used as hydrogen donor for an in situ denitrification of groundwater. It is demonstrated, that groundwater can serve as liquid medium and that the denitrification can occur at 10°C. Efforts to enrich methanotrophic bacteria under anoxic conditions have not been successful. No methane oxidation occurred in the absence of oxygen. For this reason, the denitrification with methane must be performed in a two-stage process with aerobic methanotrophic bacteria producing metabolites, that are used as hydrogen donor by non-methanotrophic bacteria in anoxic areas. This kind of indirect denitrification was proved by quantifying nitrogen and nitrous oxide in enrichment cultures that were not stirred or shaken. Large numbers of non-methanotrophic bacteria being able to denitrify with methanol, acetate or proteins as sole hydrogen donor were enriched besides the methanotrophic bacteria under these conditions. IS - 9 JF - Water Research SN - 00431354 EP - 2267 TI - Denitrification of groundwater with methane as sole hydrogen donor VL - 35 SP - 2261 KW - groundwater KW - methane KW - methanotroph AU - Eisentraeger, A PY - 2001/06// UR - http://dx.doi.org/10.1016/S0043-1354(00)00516-9 ER -