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Effect of the addition of organic carbon sources on nitrous oxide emission in anaerobic-aerobic (low

Hongjing LI, Xiurong CHEN, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 490-499 doi: 10.1007/s11783-010-0248-4

Abstract: The effect of additional organic carbon sources on the production of nitrous oxide (N O) in anaerobic-aerobicIn this paper, three laboratory-scale sequencing batch reactors (SBRs) (SBR-1, SBR-2 and SBR-3) wereOff-gas analysis showed that N O was emitted into the atmosphere during the aerobic (low dissolved oxygen) period in the three SBRs, and the order of N O emission rate was SBR-2>SBR-1>SBR-3.Further research indicated that the interaction of the factors above potentially affected the N O emission

Keywords： anaerobic-aerobic (low dissolved oxygen)     nitrous oxide (N2O) emitting rate     municipal wastewater    

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N2O emission from a sequencing batch reactor for biological N and P removal from wastewater

Lei SHEN,Yuntao GUAN,Guangxue WU,Xinmin ZHAN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 776-783 doi: 10.1007/s11783-013-0586-0

Abstract: Nitrous oxide (N O) is a greenhouse gas that can be released during biological nitrogen removal fromN O emission from a sequencing batch reactor (SBR) for biological nitrogen and phosphorus removal fromO emission and to study the effects of heterotrophic activities on N O emission during nitrification.N O emission during denitrification mainly occurred with stored organic carbon as the electron donor.The ratio of N O emission to the removed ammonium nitrogen (N O-N/NH -N) was 2.5% in the SBR system with

Keywords： biological nutrient removal     denitrification     greenhouse gas     nitrification     nitrous oxide    

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Methane, Nitrous Oxide and Ammonia generation in full-scale swine wastewater purification facilities

Takashi Osada, Makoto Shiraishi, Teruaki Hasegawa, Hirofumi Kawahara

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0933-7

Abstract: Nitrous oxide (N O) is generated on farms as an intermediate product in nitrification and denitrification(g N O-N· kg total N ), respectively.The N O emission factor calculated under this experiment was low compared to our previous finding (5.0%; g N O-N· kg N ) in a laboratory experiment.In particular, the N O emission rate was affected by several environmental conditions at each facility

Keywords： Manure     Greenhouse gas     Denitrification     BOD/N     Nitrous oxide     Methane    

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Enzymatic nitrous oxide emissions from wastewatertreatment

Gang Guo, Yayi Wang, Tianwei Hao, Di Wu, Guang-Hao Chen

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-018-1021-3

Abstract: Nitrous oxide (N O), a potent greenhousegas, is emitted during nitrogen removal in wastewater treatmentN O production and consumption vary considerably in responseto specific enzyme-catalyzed nitrogen imbalancesStudying the regulation of relatedenzymes’ activity is essential to minimize N O emissions during wastewaterThe key environmental factors influencing N O emission through regulatory enzymes are summarizedand theSeveral enzyme-basedtechniques for mitigating N O emissions directlyor indirectly are proposed.

Keywords： Nitrous oxide     Mitigation     Enzyme catalysis     Nitrogen removal     Wastewater treatment    

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Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials.The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of NO than the Rh O supported on CePO nanorods., H O or O /H O) on the N O decomposition was also investigated.The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission

Keywords： Rh2O3     CePO4     N2O decomposition    

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Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 241-247 doi: 10.1007/s11783-009-0023-6

Abstract: The effects of chemical oxygen demand (COD) concentration in the influent on nitrous oxide (N O) emissions, together with the relationships between N O and water quality parameters in free water surface constructedin the influent, and the total N O emission in the system with middle COD influent concentration wasprincipal component scores in multiple linear regression analysis to predict N O flux.O flux with different COD concentrations in the influent, but nitrate nitrogen affected N O flux in all

Keywords： free water surface constructed wetland     nitrous oxide emission     water quality parameter     principal component    

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Mitigating nitrous oxide emissions from agricultural soils by precision management

Robert M. REES, Juliette MAIRE, Anna FLORENCE, Nicholas COWAN, Ute SKIBA, Tony van der WEERDEN, Xiaotang JU

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 1,   Pages 75-80 doi: 10.15302/J-FASE-2019294

Abstract:

Nitrous oxide (N O) emissions make up a significant part of agricultural greenhouse gas emissions.They offer the opportunity for N O mitigation without any reduction in productivity.

Keywords： decision support systems     mitigation     nitrous oxide     precision farming    

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Impact of dissolved oxygen on the production of nitrous oxide in biological aerated filters

Qiang He, Yinying Zhu, Guo Li, Leilei Fan, Hainan Ai, Xiaoliu Huangfu, Hong Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0964-0

Abstract: gradient gel electrophoresis (PCR-DGGE) and microelectrode technology were employed to evaluate the Nitrousoxide (N O) production in biological aerated filters (BAFs) under varied dissolved oxygen (DO) concentrationsThe average yield of gasous N O showed more than 4-fold increase when the DO levels were reduced from6.0 to 2.0 mg·L , indicating that low DO may drive N O generation., and may be helpful for reduction of N O through regulation of DO levels.

Keywords： Nitrous oxide     Biological aerated filter     Microelectrode     Dissolved oxygen     Biofilm    

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NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 373-386 doi: 10.1007/s11705-022-2223-6

Abstract: their performance and the amount of carbon material loaded on the electrodes, in this work, NiCo2O4 nanowires were firstly grown on the substrate of active carbon cloth to provide theThen, the quinone-rich nitrogen-doped carbon shell structure was formed around NiCo2Oresults showed that the composite electrode displayed an area-specific capacitance of 1794 mF∙cm–2 at the current density of 1 mA∙cm–2.

Keywords： carbon cloth     NiCo2O4 nanowires     core−shell structure     quinone-rich     electric double    

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CH4 and N2O emissions from double-rice cropping system as affected by Chinese milk

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1,   Pages 59-68 doi: 10.15302/J-FASE-2017137

Abstract: Chinese milk vetch (CMV) and rice straw (RS) were incorporated into soil to substitute for synthetic NHowever, little is known about the integrated impacts of CMV and RS incorporation on CH and N O emissionsO emissions.CMV and/or RS incorporation produced equivalent or slightly more grain yield, while reducing N O emissionsN O emission, but enhanced CH emission.

Keywords： Chinese milk vetch     CH4     double-rice cropping system     grain yield     N2O     rice straw    

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Pilot-scale studies of domestic wastewater treatment by typical constructed wetlands and their greenhouse gas emissions

Chaoxiang LIU, Kaiqin XU, Ryuhei INAMORI, Yuhei INAMORI, Yoshitaka EBIE, Jie LIAO,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 477-482 doi: 10.1007/s11783-009-0155-8

Abstract: VF-SF-FWS constructed wetlands were investigated for the treatment of domestic wastewater with low C/N

Keywords： global warming potential     methane     nitrous oxide     low C/N ratio     nitrogen     phosphorus    

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Development of H2O/CO2 co-electrolysis in solid oxide electrolysis cell

Fan Hui,Song Shidong,Han Minfang

Strategic Study of CAE 2013, Volume 15, Issue 2,   Pages 107-112

Abstract:

Solid oxide electrolysis cell (SOEC) as an environmental-friendly device can converse the electricThe structure of SOEC, the recent development of high temperature steam/CO2 co-electrolysis fromsolid oxide single electrolysis cell and cell stack were also introduced.

Keywords： SOEC     H2O/CO2 co-electrolysis     syngas     electrolysis efficiency     water electrolysis    

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Nitrous oxide formation and emission in selective non-catalytic reduction process

YANG Weijuan, ZHOU Junhu, ZHOU Zhijun, CEN Kefa

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 228-232 doi: 10.1007/s11708-007-0031-9

Abstract: Pulverized coal-fired boilers are not nitrous oxide sources because of high temperature combustion.Chemical kinetics calculation and experimental research were used to find out the mechanism between NO and N-agentspecies, N-agent/NO nitrogen stoichiometric ratio (NSR), reaction temperature, reaction time, etc.
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Chemical reactions of oily sludge catalyzed by iron oxide under supercritical water gasification condition

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 886-896 doi: 10.1007/s11705-021-2125-z

Abstract: To evaluate the mechanism of Fe2O3 catalyst and the migration pathways of heteroatomsIn terms of the catalytic mechanisms of Fe2O3, the surface lattice oxygen is consumedby small carbon fragments to produce CO and CO2, improving the catalytic performance of theThe heteroatom O was removed under the effects of supercritical water.Heavy metal particles presented in the oily sludge, such as iron in association with Fe2O<

Keywords： oily sludge     SCWG     ReaxFF     Fe2O3     heteroatoms    

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Production of N

Youkui GONG,Yongzhen PENG,Shuying WANG,Sai WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 589-597 doi: 10.1007/s11783-013-0571-7

Abstract: The N O production in two nitrogen removal processes treating domestic wastewater was investigated inResults showed that N O emission happened in the aerobic phase rather than in the anoxic phase.The dissolved N O was reduced to N in the anoxic denitrification phase.The N O production rate increased with the increasing of nitrite concentration and ceased when oxidationPulse-wise addition of 20 mg gave rise to 3-fold of N O emission in the conventional N-removal process

Keywords： conventional N-removal process     N2O     short-cut N-removal process     nitrite accumulation     ammonia    

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Title Author Date Type Operation

Effect of the addition of organic carbon sources on nitrous oxide emission in anaerobic-aerobic (low

Hongjing LI, Xiurong CHEN, Yinguang CHEN

Journal Article

N2O emission from a sequencing batch reactor for biological N and P removal from wastewater

Lei SHEN,Yuntao GUAN,Guangxue WU,Xinmin ZHAN

Journal Article

Methane, Nitrous Oxide and Ammonia generation in full-scale swine wastewater purification facilities

Takashi Osada, Makoto Shiraishi, Teruaki Hasegawa, Hirofumi Kawahara

Journal Article

Enzymatic nitrous oxide emissions from wastewatertreatment

Gang Guo, Yayi Wang, Tianwei Hao, Di Wu, Guang-Hao Chen

Journal Article

Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition

Huan Liu, Zhen Ma

Journal Article

Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Journal Article

Mitigating nitrous oxide emissions from agricultural soils by precision management

Robert M. REES, Juliette MAIRE, Anna FLORENCE, Nicholas COWAN, Ute SKIBA, Tony van der WEERDEN, Xiaotang JU

Journal Article

Impact of dissolved oxygen on the production of nitrous oxide in biological aerated filters

Qiang He, Yinying Zhu, Guo Li, Leilei Fan, Hainan Ai, Xiaoliu Huangfu, Hong Li

Journal Article

NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Journal Article

CH4 and N2O emissions from double-rice cropping system as affected by Chinese milk

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Journal Article

Pilot-scale studies of domestic wastewater treatment by typical constructed wetlands and their greenhouse gas emissions

Chaoxiang LIU, Kaiqin XU, Ryuhei INAMORI, Yuhei INAMORI, Yoshitaka EBIE, Jie LIAO,

Journal Article

Development of H2O/CO2 co-electrolysis in solid oxide electrolysis cell

Fan Hui,Song Shidong,Han Minfang

Journal Article

Nitrous oxide formation and emission in selective non-catalytic reduction process

YANG Weijuan, ZHOU Junhu, ZHOU Zhijun, CEN Kefa

Journal Article

Chemical reactions of oily sludge catalyzed by iron oxide under supercritical water gasification condition

Journal Article

Production of N

Youkui GONG,Yongzhen PENG,Shuying WANG,Sai WANG

Journal Article