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Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 263-276 doi: 10.1007/s11708-021-0791-7

Abstract: The laminar flame speeds of ammonia mixed with syngas at a high pressure, temperature, and differentPathway, sensitivity and radical pool analysis are conducted to find out the deep kinetic insight on ammoniathat H abstraction reactions and NHi combination reactions play important roles in ammoniaFurthermore, both ammonia oxidation and NO formation are sensitive to small radical reactions and ammonia

Keywords: ammonia mixed with syngas     laminar flame speed     kinetic model     sensitivity analysis     pathway analysis    

Impact of preozonation on the bioactivity and biodiversity of subsequent biofilters under low temperature conditions—A pilot study

Jiaxuan YANG, Jun MA, Dan SONG, Xuedong ZHAI, Xiujuan KONG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0844-z

Abstract: Higher level of BDOC/AOC and DO may enhance the nitrifying performance.High level of biodiversity and bioactivity may help maintain the stability of filters.

Keywords: Preozonation     BAC filtration     High ammonia level     Bacterial activity     Microbial community structure     Pilot    

Nitrification and denitrification in biological activated carbon filter for treating high ammonia source

LIU Jianguang, ZHANG Xiaojian, WANG Zhansheng

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 94-98 doi: 10.1007/s11783-008-0020-1

Abstract: Since the ammonia in the effluent of the traditional water purification process could not meet the supplydemand, the advanced treatment of a high concentration of 4-N micro-polluted source water by biologicalWhen the influent NH4-N concentration was high, the DO in water was almost depleted entirely by the nitrifying

The carbon dioxide removal potential of Liquid Air Energy Storage: A high-level technical and economic

Andrew LOCKLEY, Ted von HIPPEL

Frontiers of Engineering Management 2021, Volume 8, Issue 3,   Pages 456-464 doi: 10.1007/s42524-020-0102-8

Abstract: Liquid Air Energy Storage (LAES) is at pilot scale. Air cooling and liquefaction stores energy; reheating revaporises the air at pressure, powering a turbine or engine (Ameel et al., 2013). Liquefaction requires water & CO removal, preventing ice fouling. This paper proposes subsequent geological storage of this CO – offering a novel Carbon Dioxide Removal (CDR) by-product, for the energy storage industry. It additionally assesses the scale constraint and economic opportunity offered by implementing this CDR approach. Similarly, established Compressed Air Energy Storage (CAES) uses air compression and subsequent expansion. CAES could also add CO scrubbing and subsequent storage, at extra cost. CAES stores fewer joules per kilogram of air than LAES – potentially scrubbing more CO per joule stored. Operational LAES/CAES technologies cannot offer full-scale CDR this century (Stocker et al., 2014), yet they could offer around 4% of projected CO disposals for LAES and<25% for current-technology CAES. LAES CDR could reach trillion-dollar scale this century (20 billion USD/year, to first order). A larger, less certain commercial CDR opportunity exists for modified conventional CAES, due to additional equipment requirements. CDR may be commercially critical for LAES/CAES usage growth, and the necessary infrastructure may influence plant scaling and placement. A suggested design for low-pressure CAES theoretically offers global-scale CDR potential within a century (ignoring siting constraints) – but this must be costed against competing CDR and energy storage technologies.

Keywords: carbon dioxide removal     Liquid Air Energy Storage     Compressed Air Energy Storage     geoengineering    

Geological Disposal of High Level Radio Active Waste:Progress and Challenges

Wang Ju

Strategic Study of CAE 2008, Volume 10, Issue 3,   Pages 58-65

Abstract:

Safe disposal of high level radioactive waste is a challenging task facingThis paper introduces the latest progress of high level radioactive waste disposal programs in the worldbehaviour of deep rock mass,groundwater and engineering material under coupled conditions(intermediate to highSeveral large-scale research projects and several hot topics relating to high-level waste disposal are

Keywords: high level radioactive waste     geological disposal     underground research laboratory     key scientific challenges    

Abundance and distribution of ammonia-oxidizing archaea in Tibetan and Yunnan plateau agricultural soils

Kun DING,Xianghua WEN,Liang CHEN,Daishi HUANG,Fan FEI,Yuyang LI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 693-702 doi: 10.1007/s11783-014-0635-3

Abstract: As low oxygen and high ultraviolet (UV) exposure might significantly affect the microbial existence inTo determine the abundance and distribution of ammonia-oxidizing archaea (AOA) in agricultural soil ofcultivating the wheat, highland-barley, and colza, which are located at altitudes of 3200–3800 m above sea levelQuantitative PCR (q-PCR) and clone library targeting on gene were used to quantify the abundances of AOA and ammonia-oxidizing

Keywords: ammonia-oxidizing archaea     ammonia-oxidizing bacteria     quantitative PCR     clone library     plateau    

Heat and mass transfer of ammonia-water in falling film evaporator

Xianbiao BU, Weibin MA, Huashan LI

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 358-366 doi: 10.1007/s11708-011-0161-y

Abstract: To investigate the performance of heat and mass transfer of ammonia-water during the process of falling

Keywords: falling film evaporation     ammonia-water     heat and mass transfer    

Simulation on thermodynamic state of ammonia carbonation at low temperature and low pressure

Jingcai ZHAO, Xingfu SONG, Ze SUN, Jianguo YU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 447-455 doi: 10.1007/s11705-013-1370-1

Abstract: This study on thermodynamic property of NH -CO -H O system provided the basic data for ammonia carbonationSimulations on vapor-liquid equilibrium (VLE) of ammonia carbonation with different physical propertiestemperature range of 273.15 K–363.15 K, the prediction of product component using E-NRTLRK model for ammonia

Keywords: vapor-liquid equilibrium     activity coefficient     carbon dioxide     ammonia     NRTL    

Design guidelines for urea hydrolysers for ammonia demand of the SCR DENOX project in coal-fired power

Peng ZHENG, Xuan YAO, Wei ZHENG

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 127-132 doi: 10.1007/s11708-012-0225-7

Abstract: Ammonia is highly volatile and will present substantial environmental and operation hazards when leakingHowever, ammonia is the most common reactant in the DENOX project to eliminate NO in the flue gas.The storage and transportation of liquid ammonia has always been a dilemma of the power plant.Urea is a perfect substitute source for ammonia in the plant.Urea hydrolysis technology can easily convert urea into ammonia with low expense.

Keywords: urea     hydrolyser     ammonia     selective catalytic reduction (SCR)    

Enhancement on the ammonia oxidation capacity of ammonia-oxidizing archaeon originated from wastewater

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1375-1

Abstract:

• AOA’s ammonia oxidizing capacity was enhanced under moderate magnetic

Keywords: Ammonia-oxidizing archaeon     Ammonia oxidation     Magnetic field     Magnetotaxis     Heredity    

Upgrade of three municipal wastewater treatment lagoons using a high surface area media

John WANG, Peng JIN, Paul L. BISHOP, Fuzhi LI

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 288-293 doi: 10.1007/s11783-011-0280-z

Abstract: Three municipal WWTPs were modified using a high surface area media with upgraded fine-bubble aerationdata collected showed very promising results in terms of five-day biochemical oxygen demand (BOD ), ammoniaTwo-year average ammonia effluents were 4.1 mg·L for Columbia WWTP, 4 mg·L for Larchmont WWTP and 2.1

Keywords: wastewater lagoons     wastewater biological treatment     ammonia removal     high surface area media     fine bubble    

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1973-1985 doi: 10.1007/s11705-023-2364-2

Abstract: Ammonia is crucial in industry and agriculture, but its production is hindered by environmental concernssub>3 desorption, thereby resulting in improved NO conversion and enhanced selectivity toward ammoniaThis study presents a pioneering approach toward energy-efficient ammonia synthesis and recycling of

Keywords: NO hydrogenation     synthetic ammonia     10Fe-xCu/TiO2     high selectivity    

Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1108-1116 doi: 10.1007/s11783-015-0806-x

Abstract: High-solids anaerobic digestion of sewage sludge was a promising process, but high solid concentrationThe blocked mass transfer led to the accumulation of volatile fatty acids (VFAs) and free ammonia.The concentration of free ammonia increased gradually, and the methanogenesis was inhibited when freeammonia nitrogen exceeded 50 mg·L .and the resulting ammonia accumulation.

Keywords: anaerobic digestion     methane     sewage sludge     volatile fatty acids     free ammonia    

Theoretical analysis and actual experimental research on static characteristics of suspendome structure

CHEN Zhihua, YAN Xiangyu, SUN Ruirui, FENG Zhenchang, QIN Yali, ZHAO Jianbo

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 286-292 doi: 10.1007/s11709-007-0037-8

Abstract: and nodal displacements were compared and it showed that they accord well with each other under low-levelWhile under high-level load, the experimental value was bigger than the theoretical value due to the

Keywords: Tianjin     influence     displacement     high-level     low-level    

High Sensitive Electron-Bombarded CCD for Low Light Level Imaging

Zhou Liwei,Liu Guangrong,Gao Zhiyun,Wang Zhongchun

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 56-62

Abstract: reviews the recent developments of electron-bombarded charge coupled devices (EBCCD) for low-light-levelIt has been shown that the EBCCD image tubes offer nearly noiseless gain, high signal to noise ratioand excellent MTF and, for this reason, are superior to conventional ICCD approaches under all light levelFinaly, the present paper shows that these new, high performance devices of EBCCD are in an advantageousposition for many applications in low-light-lev-el surveillance imaging, high energy physics and medical

Keywords: low-light-level imaging     charge-coupled-devices     electron-bombarded    

Title Author Date Type Operation

Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and

Journal Article

Impact of preozonation on the bioactivity and biodiversity of subsequent biofilters under low temperature conditions—A pilot study

Jiaxuan YANG, Jun MA, Dan SONG, Xuedong ZHAI, Xiujuan KONG

Journal Article

Nitrification and denitrification in biological activated carbon filter for treating high ammonia source

LIU Jianguang, ZHANG Xiaojian, WANG Zhansheng

Journal Article

The carbon dioxide removal potential of Liquid Air Energy Storage: A high-level technical and economic

Andrew LOCKLEY, Ted von HIPPEL

Journal Article

Geological Disposal of High Level Radio Active Waste:Progress and Challenges

Wang Ju

Journal Article

Abundance and distribution of ammonia-oxidizing archaea in Tibetan and Yunnan plateau agricultural soils

Kun DING,Xianghua WEN,Liang CHEN,Daishi HUANG,Fan FEI,Yuyang LI

Journal Article

Heat and mass transfer of ammonia-water in falling film evaporator

Xianbiao BU, Weibin MA, Huashan LI

Journal Article

Simulation on thermodynamic state of ammonia carbonation at low temperature and low pressure

Jingcai ZHAO, Xingfu SONG, Ze SUN, Jianguo YU

Journal Article

Design guidelines for urea hydrolysers for ammonia demand of the SCR DENOX project in coal-fired power

Peng ZHENG, Xuan YAO, Wei ZHENG

Journal Article

Enhancement on the ammonia oxidation capacity of ammonia-oxidizing archaeon originated from wastewater

Journal Article

Upgrade of three municipal wastewater treatment lagoons using a high surface area media

John WANG, Peng JIN, Paul L. BISHOP, Fuzhi LI

Journal Article

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Journal Article

Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Journal Article

Theoretical analysis and actual experimental research on static characteristics of suspendome structure

CHEN Zhihua, YAN Xiangyu, SUN Ruirui, FENG Zhenchang, QIN Yali, ZHAO Jianbo

Journal Article

High Sensitive Electron-Bombarded CCD for Low Light Level Imaging

Zhou Liwei,Liu Guangrong,Gao Zhiyun,Wang Zhongchun

Journal Article