Resource Type

Journal Article 271

Conference Videos 3

Conference Information 1

Year

2023 24

2022 50

2021 28

2020 22

2019 11

2018 14

2017 12

2016 12

2015 9

2014 5

2013 8

2012 12

2011 9

2010 7

2009 10

2008 9

2007 18

2006 1

2003 2

2002 2

open ︾

Keywords

nitrogen 12

Nitrogen removal 6

Anammox 3

Biofilm 3

Carbon source 3

eutrophication 3

Adsorption 2

Biological aerated filter 2

Biological diversity 2

Biological nutrient removal 2

Biological treatment 2

Biological wastewater treatment 2

China 2

Complete ammonia oxidizing (comammox) bacteria 2

Constructed wetland 2

Nitrogen 2

Wastewater treatment 2

biofilm 2

biological process 2

open ︾

Search scope:

排序： Display mode:

Effects of mulching for water conservation on soil carbon, nitrogen and biological properties

Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 146-154 doi: 10.15302/J-FASE-2017136

Abstract: The effect of mulching with straw, white plastic film and black plastic film for improving soil water storage and on the soil properties was examined in a wheat-maize rotation system on Loess soil in northwestern China. All the mulches improved the water storage to some extent and led to warmer soils. However, the organic C and total N contents of the soils declined significantly under the mulches, particularly the plastic film mulches, and this could have long-term detrimental effects on soil quality and the sustainability of the some mulching practices.

Keywords： biomass     carbon     mulch     nitrogen     plastic films     soil     straw     water storage    

HTML PDF Collect

Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1426-2

Abstract:

• AOA and comammox bacteria can be more abundant and active than AOB/NOB at WWTPs.

Keywords： Ammonia oxidizing archaea (AOA)     Complete ammonia oxidizing (comammox) bacteria     Dissimilatory nitrate reduction to ammonium (DNRA) bacteria     Nitrate/nitrite-dependent anaerobic methane oxidizing (NOx-DAMO) microorganisms     Engineering application    

HTML PDF Collect

ROOT EXUDATES FROM CANOLA EXHIBIT BIOLOGICAL NITRIFICATION INHIBITION AND ARE EFFECTIVE IN INHIBITING

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 2,   Pages 177-186 doi: 10.15302/J-FASE-2021421

Abstract: This biological nitrification inhibition (BNI) capacity can decrease N loss and increase N uptake from

Keywords： ammonia oxidizing microorganisms / biological nitrification inhibition / farming rotations / nitrogencycling / nitrogen use efficiency    

HTML PDF Collect

Circulating fluidized bed biological reactor for nutrients removal

CUI Yubo, LIU Hongbo, BAI Chunxue

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 349-353 doi: 10.1007/s11783-008-0051-7

Abstract: A new biological nitrogen removal process, which is named herein “The circulating fluidized bed bioreactor(CFBBR)”, was developed for simultaneous removal of nitrogen and organic matter.aerobic bed enters the anaerobic bed from the bottom of the anaerobic bed, completing the removal of nitrogenrecirculation rate of 400% based on the influent flow rate, the average removal efficiencies of total nitrogen

Keywords： soluble chemical     bioreactor     biological nitrogen     optimum nitrified     nitrogen removal    

HTML PDF Collect

Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophic biologicalnitrogen removal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1498-z

Abstract:

• The autotrophic nitrogen removal combining Feammox and Anammox was

Keywords： Feammox     Anammox     Extracellular electron transfer     Electron shuttle     Activated carbon    

HTML PDF Collect

Experimental study of nitrite accumulation in pre-denitrification biological nitrogen removal process

WU Xuelei, CHEN Lunqiang, PENG Yongzhen, WANG Pu, WANG Yayi

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 236-240 doi: 10.1007/s11783-008-0008-x

Abstract: The effect of dissolved oxygen (DO) concentration on nitrite accumulation was investigated in a pilot-scale pre-denitrification process at room temperature for 100 days. In the first 10 days, due to the instability of the system, the DO concentration fluctuated between 1.0 and 2.0 mg/L. In the next 14 days, the DO concentration was kept at 0.5 mg/L and nitrite accumulation occurred, with the average nitrite accumulation rate at 91%. From the 25th day, the DO concentration was increased to 2.0 mg/L to destroy the nitrite accumulation, but nitrite accumulation rate was still as high as 90%. From the 38th day the nitrite accumulation rate decreased to 15%–30% linearly. From the 50th day, DO concentration was decreased to 0.5 mg/L to resume nitrite accumulation. Until the 83rd day the nitrite accumulation rate began to increase to 80%. Dissolved oxygen was the main cause of nitrite accumulation, taking into account other factors such as pH, free ammonia concentration, temperature, and sludge retention time. Because of the different affinity for oxygen between nitrite oxidizing bacteria and ammonia oxidizing bacteria when DO concentration was kept at 0.5 mg/L, nitrite accumulation occurred.
HTML PDF Collect

Research on polyhydroxyalkanoates and glycogen transformations: Key aspects to biologic nitrogen and

Hongjing LI, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 283-290 doi: 10.1007/s11783-010-0243-9

Abstract: was conducted on the effect of polyhydroxyalkanoates (PHA) and glycogen transformations on biologic nitrogenThe total nitrogen (TN) removal efficiency was 68% and 82% in SBR1 and SBR2, respectively.transformations should be taken into account as key components for optimizing anaerobic/aerobic (low DO) biologic nitrogen

Keywords： low dissolved oxygen (DO)     biological nitrogen and phosphorus removal     polyhydroxyalkanoates (PHA)     glycogen    

HTML PDF Collect

Enhancing the efficiency of nitrogen removing bacterial population to a wide range of C:N ratio (1.5:

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1522-y

Abstract:

• Simultaneous C & N removal in Methammox occurs at wide C:N ratio.

Keywords： Methanogens     Biological Nitrogen Removal (BNR)     Simultaneous     Methammox     C:N ratio    

HTML PDF Collect

Effects of nitrate concentration on biological hydrogen production by mixed cultures

Bo WANG, Wei WAN, Jianlong WANG,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 380-386 doi: 10.1007/s11783-009-0142-0

Abstract: The effects of nitrate on fermentative hydrogen production and soluble metabolites from mixed cultures were investigated by varying nitrate concentrations from 0 to 10g N/L at 35°C with an initial pH of 7.0. The results showed that the substrate degradation rate, hydrogen production potential, hydrogen yield, and average hydrogen production rate initially increased with increasing nitrate concentrations from 0 to 0.1g N/L, while they decreased with increasing nitrate concentrations from 0.1 to 10g N/L. The maximum hydrogen production potential of 305.0mL, maximum hydrogen yield of 313.1mL/g glucose, and maximum average hydrogen production rate of 13.3mL/h were obtained at a nitrate concentration of 0.1g N/L. The soluble metabolites produced by the mixed cultures contained only ethanol and acetic acid (HAc) without propionic acid (HPr) and butyric acid (HBu). This study used the Modified Logistic model to describe the progress of cumulative hydrogen production in batch tests. A concise model was proposed to describe the effects of nitrate concentration on average hydrogen production rate.

Keywords： nitrogen source     biohydrogen     fermentative hydrogen production     quantitative kinetic model    

HTML PDF Collect

Field experiment on biological contact oxidation process to treat polluted river water in the Dianchi

Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 38-47 doi: 10.1007/s11783-009-0007-6

Abstract: In this study two types of biological contact oxidation processes (BCOP), a step-feed (SBCOP) unit and

Keywords： step-feed biological contact oxidation process (SBCOP)     inter-recycle biological contact oxidation process(IBCOP)     river water     removal efficiency     nitrogen transformation     the Dianchi Lake watershed    

HTML PDF Collect

On-line controlling system for nitrogen and phosphorus removal of municipal wastewater in a sequencing

LI Jun, NI Yongjiong, WEI Su, CHENG Guobiao, OU Changjin, PENG Yongzhen, GU Guowei, LU Jingen

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 99-102 doi: 10.1007/s11783-008-0017-9

Abstract: The objectives of this study were to establish an on-line controlling system for nitrogen and phosphorusThe variation of DO, ORP and pH is relevant to each phase of biological process for nitrogen and phosphorusThe controlling system can operate automatically for nitrogen and phosphorus efficiently removal.

Keywords： DO     relevant     biological process     nitrogen     pH    

HTML PDF Collect

Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0717-z

Abstract: These results showed that U-NJMC provides a novel approach for clinical surgical micro-grinding of biological

Keywords： micro-grinding     biological bone     ultrasonic vibration (UV)     nanoparticle jet mist cooling (NJMC)     grinding    

HTML PDF Collect

Microorganism-derived biological macromolecules for tissue engineering

Frontiers of Medicine 2022, Volume 16, Issue 3,   Pages 358-377 doi: 10.1007/s11684-021-0903-0

Abstract: According to literature, certain microorganism productions mediate biological effects.The present review aims to introduce microorganism-derived biological macromolecules, such as pullulanGrowing evidence indicates that these materials can be used as biological material in scaffolds to enhance

Keywords： biological macromolecules     regenerative medicine     tissue engineering     exopolysaccharide     carbohydrate    

HTML PDF Collect

Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 67-72 doi: 10.1007/s11783-007-0013-5

Abstract: This work aims to explore a procedure to improve biological wastewater treatment efficiency using low

Keywords： sonication     irradiation     kHz     treatment efficiency     AS activity    

HTML PDF Collect

SUSTAINABLE NITROGEN MANAGEMENT IN AUSTRALIAN AGROECOSYSTEMS: CHALLENGES AND OPPORTUNITIES

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 366-372 doi: 10.15302/J-FASE-2022447

Abstract:

● There is huge potential for improvement of nitrogen management in

Keywords： Australian agroecosystems     reactive nitrogen     sustainable development    

HTML PDF Collect

Title Author Date Type Operation

Effects of mulching for water conservation on soil carbon, nitrogen and biological properties

Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS

Journal Article

Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

Journal Article

ROOT EXUDATES FROM CANOLA EXHIBIT BIOLOGICAL NITRIFICATION INHIBITION AND ARE EFFECTIVE IN INHIBITING

Journal Article

Circulating fluidized bed biological reactor for nutrients removal

CUI Yubo, LIU Hongbo, BAI Chunxue

Journal Article

Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophic biologicalnitrogen removal

Journal Article

Experimental study of nitrite accumulation in pre-denitrification biological nitrogen removal process

WU Xuelei, CHEN Lunqiang, PENG Yongzhen, WANG Pu, WANG Yayi

Journal Article

Research on polyhydroxyalkanoates and glycogen transformations: Key aspects to biologic nitrogen and

Hongjing LI, Yinguang CHEN

Journal Article

Enhancing the efficiency of nitrogen removing bacterial population to a wide range of C:N ratio (1.5:

Journal Article

Effects of nitrate concentration on biological hydrogen production by mixed cultures

Bo WANG, Wei WAN, Jianlong WANG,

Journal Article

Field experiment on biological contact oxidation process to treat polluted river water in the Dianchi

Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN

Journal Article

On-line controlling system for nitrogen and phosphorus removal of municipal wastewater in a sequencing

LI Jun, NI Yongjiong, WEI Su, CHENG Guobiao, OU Changjin, PENG Yongzhen, GU Guowei, LU Jingen

Journal Article

Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant

Journal Article

Microorganism-derived biological macromolecules for tissue engineering

Journal Article

Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

Journal Article

SUSTAINABLE NITROGEN MANAGEMENT IN AUSTRALIAN AGROECOSYSTEMS: CHALLENGES AND OPPORTUNITIES

Journal Article