Partial nitrification achieved by pulse sulfide doses in a sequential batch reactor. Export

@article{citeulike:5401402, abstract = {A nitrifying sequential batch reactor operated under 2-day cyclic aerobic and anoxic conditions was pulse dosed with incremental sulfide concentrations during anoxic conditions. The nitrite-oxidizing bacteria were found to be more sensitive to sulfide than the ammonia oxidizers. A maximum of nitrite-N to (nitrite-N + nitrate-N) accumulation ratio of 0.75 was obtained at an initial pulse sulfide-S concentration of 45 mg/L under pH control at 7.5 +/- 0.2 and fully mixing conditions. Total ammonium nitrogen was removed almost 100\% at a removal rate of 0.73 +/- 0.05 g/L x day, achieved during the aerobic days of the cycles. Denaturing gradientgel electrophoresis (DGGE) and fluorescence in situ hybridization (FISH) analyses indicated the shift in the ammonia- and nitrite-oxidizing populations triggered by sulfide addition, partial nitrification, and subsequent recovery to complete nitrification. Interestingly, archaeal amoA genes were retrieved under the conditions of sulfide addition. These results indicate that the pulse sulfide application can be used as a tool to accumulate nitrite, which is of importance for the subsequent anaerobic ammonium oxidation (anammox) process in the achievement of complete nitrogen removal.}, author = {Erguder, Tuba H. and Boon, Nico and Vlaeminck, Siegfried E. and Verstraete, Willy}, citeulike-article-id = {5401402}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/19192787}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=19192787}, day = {1}, issn = {0013-936X}, journal = {Environmental science \& technology}, keywords = {anammox, crenarchaeal\_nitrification, ecology, nitrification, physiology, wastewater}, month = {December}, number = {23}, pages = {8715--8720}, posted-at = {2009-08-09 16:02:04}, priority = {3}, title = {Partial nitrification achieved by pulse sulfide doses in a sequential batch reactor.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/19192787}, volume = {42}, year = {2008} }

TY - JOUR ID - citeulike:5401402 L3 - citeulike-article-id:5401402 N2 - A nitrifying sequential batch reactor operated under 2-day cyclic aerobic and anoxic conditions was pulse dosed with incremental sulfide concentrations during anoxic conditions. The nitrite-oxidizing bacteria were found to be more sensitive to sulfide than the ammonia oxidizers. A maximum of nitrite-N to (nitrite-N + nitrate-N) accumulation ratio of 0.75 was obtained at an initial pulse sulfide-S concentration of 45 mg/L under pH control at 7.5 +/- 0.2 and fully mixing conditions. Total ammonium nitrogen was removed almost 100% at a removal rate of 0.73 +/- 0.05 g/L x day, achieved during the aerobic days of the cycles. Denaturing gradientgel electrophoresis (DGGE) and fluorescence in situ hybridization (FISH) analyses indicated the shift in the ammonia- and nitrite-oxidizing populations triggered by sulfide addition, partial nitrification, and subsequent recovery to complete nitrification. Interestingly, archaeal amoA genes were retrieved under the conditions of sulfide addition. These results indicate that the pulse sulfide application can be used as a tool to accumulate nitrite, which is of importance for the subsequent anaerobic ammonium oxidation (anammox) process in the achievement of complete nitrogen removal. IS - 23 JF - Environmental science & technology SN - 0013-936X EP - 8720 TI - Partial nitrification achieved by pulse sulfide doses in a sequential batch reactor. VL - 42 SP - 8715 KW - anammox KW - crenarchaeal_nitrification KW - ecology KW - nitrification KW - physiology KW - wastewater AU - Erguder, Tuba AU - Boon, Nico AU - Vlaeminck, Siegfried AU - Verstraete, Willy PY - 2008/12/01/ UR - http://view.ncbi.nlm.nih.gov/pubmed/19192787 ER -