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| 1 | Differences in nitrite-oxidizing communities and kinetics in a brackish environment after enrichment at low and high nitrite concentrations显示文摘Nitrite accumulation in shrimp ponds can pose serious adverse effects to shrimp production and the environment.This study aims to develop an effective process for the enrichment of ready-to-use nitrite-oxidizing bacteria(NOB)inocula that would be appropriate for nitrite removal in brackish shrimp ponds.To achieve this objective,the effects of nitrite concentrations on NOB communities and nitrite oxidation kinetics in a brackish environment were investigated.Moving-bed biofilm sequencing batch reactors and continuous moving-bed biofilm reactors were used for the enrichment of NOB at various nitrite concentrations,using sediment from brackish shrimp ponds as seed inoculum.The results from NOB population analysis with quantitative polymerase chain reaction(q PCR)show that only Nitrospira were detected in the sediment from the shrimp ponds.After the enrichment,both Nitrospira and Nitrobacter coexisted in the reactors controlling effluent nitrite at 0.1 and 0.5 mg-NO_2^--N/L.On the other hand,in the reactors controlling effluent nitrite at 3,20,and 100 mg-NO_2^--N/L,Nitrobacter outcompeted Nitrospira in many orders of magnitude.The half saturation coefficients(Ks)for nitrite oxidation of the enrichments at low nitrite concentrations(0.1 and 0.5 mg-NO_2^--N/L)were in the range of 0.71–0.98 mg-NO_2^--N/L.In contrast,the Ksvalues of NOB enriched at high nitrite concentrations(3,20,and 100 mg-NO_2^--N/L)were much higher(8.36–12.20 mg-NO_2^--N/L).The results suggest that the selection of nitrite concentrations for the enrichment of NOB inocula can significantly influence NOB populations and kinetics,which could affect the effectiveness of their applications in brackish shrimp ponds. | Wipasanee Tangkitjawisut Tawan Limpiyakorn Sorawit Powtongsook Preeyaporn Pornkulwat Benjaporn Boonchayaanant Suwannasilp | 2016 | Journal of Environmental Sciences2016，28，4： | 7 |
| 2 | Biotransformation of 17α-methyltestosterone in sediment under different electron acceptor conditions显示文摘 | Supreeda Homklin Say Kee Ong Tawan Limpiyakorn | 2010 | Chemosphere2010，，10： | 1 |
| 3 | Communities of ammonia-oxidizing bacteria in activated sludge of various sewage treatment plants in Tokyo显示文摘 | Tawan Limpiyakorn Yuko Shinohara Futoshi Kurisu Osami Yagi | 2005 | FEMS Microbiology Ecology2005，，2： | 1 |
| 4 | Abundance of amoA genes of ammonia-oxidizing archaea and bacteria in activated sludge of full-scale wastewater treatment plants显示文摘 | Tawan Limpiyakorn Puntipar Sonthiphand Chaiwat Rongsayamanont Chongrak Polprasert | 2010 | Bioresource Technology2010，，4： | 1 |
| 5 | The surface combustor-heater with cyclic flow reversal combustion 显示文摘 | SUMRERNG J SUPAWIT W TAWAN T | 2001 | Experimental Thermal and Fluid Science2001，25，3： | 1 |
| 6 | The effect of shade on leaf characteristics of Mihania micrantha (Compositae) and their influence 显示文摘 | Ipor I B Tawan C S | 1995 | Agri Sci1995，18，3： | 1 |
| 7 | The effect of shade on Leaf characteristics of Mikania micrartha(Compositae)and their irfluence显示文摘 | Ipor I B Tawan C S | | 0，，03： | 1 |
| 8 | A Study on Pollen Viability of Piper colubrinum Link显示文摘 | Chen Yi Shang Cheksum Supiah Tawan Paulus Amin Det Sim Soon Liang | 2012 | Journal of Agricultural Science and Technology(B)2012，2，11： | 1 |
| 9 | Breakdown of pulmonary host defense in the immunocompromised host: cancer chemotherapy 显示文摘 | Joos L Tawan M | 2005 | Proc Am Thorac Soc2005，2，： | 1 |
| 10 | Communities of ammonia-oxidizing bacteria in activated sludge of various sewage treatment plants in Tokyo 显示文摘 | TAWAN LIMPIYAKORN YUKO SHINOHARA FUTOSHI KURISU and OSAMI YAGI | 2005 | FEMS Microbiology Ecology2005，54，2： | 1 |
| 11 | Development and application of real-time PCR for quantification of specific ammonia-oxidizing bacteria in activated sludge of sewage treatment systems显示文摘 | Tawan Limpiyakorn Futoshi Kurisu Osami Yagi | 2006 | Applied Microbiology and Biotechnology2006，，5： | 1 |
| 12 | Selective conversion of m-cresol to toluene over bimetallic Ni–Fe catalysts显示文摘 | Lei Nie Priscilla M. de Souza Fabio B. Noronha Wei An Tawan Sooknoi Daniel E. Resasco | 2013 | Journal of Molecular Catalysis. A, Chemical2013，，： | 1 |
| 13 | Activity enhancenent by acetic acid in cyclohexane oxidation using Ti-containing zeolite catalyst显示文摘 | Jumras Limtrakul | 2002 | Applied Catalysis A:General2002，，233： | 1 |
| 14 | The effect of shade on Leaf characteristics of Mikania micrantha (Compositae) and their influence 显示文摘 | Tawan - CS | 1995 | Agricultural Science1995，18，3： | 1 |
| 15 | Two hybrid RSS/TOA localization techniques in cognitive radio system显示文摘 | Tawan Panichcharoenrat Wilaiporn Lee | 2014 | 6th International Conference on Knowledge and Smart Technology (KST) 2014:23-282014，，： | 1 |
| 16 | The effect of shade on leaf characteristics of Mikania micrantha(Compositae) and their influence显示文摘 | Ipor I B Tawan C S | 1995 | Pertanika Journal of Tropical Agricultural1995，18，3： | 1 |
| 17 | Modelling dependance within joint tail regions显示文摘 | Jonathan Tawan | 1997 | J R Statist Soc B1997，59，2： | 1 |
| 18 | Regioselective alkane oxygenation with H2O2 catalyzed by titanosilicalite TS-1 显示文摘 | GEORGIY B S TAWAN S VLADIMIR B R | 2006 | Tetrahedron Letters2006，47，18： | 1 |
| 19 | Noviral transfer of gene encoding coagulation Factor Ⅷ in patients with severe hemophilia A显示文摘 | ROTHEDA TAWAN E JR O' BRRENJ M | 2001 | N Eng1 J Med2001，334，23： | 1 |
| 20 | Regioselective alkane oxygenation with H2O2 by titanosilicalite TS-1显示文摘 | Georgiy B Shul'pin Tawan Sooknoi Vladimir B Romakh | 2006 | Tetrahedron Letters2006，47，： | 1 |
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