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REGIONAL ASSESSMENT OF SOIL NITROGEN MINERALIZATION IN DIVERSE CROPLAND OF A REPRESENTATIVE INTENSIVE AGRICULTURAL AREA

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 530-540 doi: 10.15302/J-FASE-2023515

Abstract: this study, a 4-week incubation experiment was implemented to measure net soil Nmin rate, gross nitrification (Nit) rate and corresponding soil abiotic properties in five field soils (A&ndashThe results showed that soil Nmin rate ranged from 0.10 to 0.17 mg·kg&minusThe soil Nit rate ranged from 434.2 to 827.1 µg·kg−1·h&minus

Keywords： cropland     gross nitrification rate     regulatory factors     soil nitrogen mineralization     spatial variation    

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Achievement of high rate nitritation with aerobic granular sludge reactors enhanced by sludge recirculation

Zulkifly JEMAAT,Josep Anton TORA,Albert BARTROLI,Julián CARRERA,Julio PEREZ

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 528-533 doi: 10.1007/s11783-014-0641-5

Abstract: A ratio control strategy has been used to demonstrate the feasibility of this automatic control procedure for the achievement of stable full and partial nitritation. The control strategy assured constant ratio between the dissolved oxygen (DO) and the total ammonia nitrogen (TAN) concentrations in the bulk liquid of aerobic granular sludge reactors operating in continuous mode. Three different set-ups with different reactor capacities were used (3, 110, and 150 L). High strength synthetic wastewaters and reject water were tested with similar performance. Achieved nitrogen loading rates ranged between 0.4 and 6.1 kgN·m ·d , at temperatures between 20°C and 30°C. Granular sludge and nitritation were stable in the long term continuous operation of the reactors. Suitable stable effluent for Anammox has been obtained using the desired TAN setpoint (i.e. 50% of influent ammonium oxidation). An existing biofilm model developed incorporating the implemented control loops and validated in a previous publication was used to investigate the effects of the ammonium concentration of the influent and the biofilm density on the achievement of full nitritation. The model demonstrated how sludge recirculation events led to a stable and significant increase of the biomass concentration in the reactor, which in turn resulted in the achievement of high nitrogen loading rates, due to the action of the control strategy. The model predicted an enhancement of stable full nitritation at higher ammonium concentrations in the influent. Poor influence of the biofilm density in the achievement of full nitritation was predicted with the model.

Keywords： partial nitrification     reject water     high strength ammonium wastewater     closed-loop control    

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Start-up of PN-anammox system under low inoculation quantity and its restoration after low-loading rate

Guoliang Zhang, Liang Zhang, Xiaoyu Han, Shujun Zhang, Yongzhen Peng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1324-z

Abstract: The nitrogen removal rate of 0.71 kgN/(m3·d) was obtained, which was far higher than the seed sludgeExperimental results suggest that increasing the nitrogen loading rate as well as the concentration ofThe partial nitritation and anammox activity were in balance, and an increase in nitrogen removal rate

Keywords： PN-anammox     Granular sludge     Excess nitrate build-up     Recovery strategy for partial nitrification     Aggressive    

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Applicability of the Arrhenius model for Ammonia Oxidizing Bacteria subjected to temperature time gradients

Alberto MANNUCCI,Giulio MUNZ,Gualtiero MORI,Claudio LUBELLO,Jan A. OLESZKIEWICZ

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 988-994 doi: 10.1007/s11783-014-0751-0

Abstract: differential titrimetric technique was used to continuously monitor the maximum biologic ammonia oxidation rateestimated Arrhenius coefficients ( ) were shown to increase from 1.07 to 1.6 when the temperature decrease rate

Keywords： nitrification rate     temperature effect     continuous titrimetric tests     time-gradient temperature variations    

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Simultaneous nitrification and denitrification in activated sludge system under low oxygen concentration

ZHANG Peng, ZHOU Qi

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 49-52 doi: 10.1007/s11783-007-0009-1

Abstract: Simultaneous nitrification and denitrification (SND), which is more economical compared with the traditionalThe nitrogen removal rate can be obtained up to 66.7% with solids retention time (SRT) of 45 d, C/N value

Keywords： synthetic wastewater     accessible     Simultaneous nitrification     MLSS·d     diffusion    

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Methanation and chemolitrophic nitrogen removal by an anaerobic membrane bioreactor coupled partial nitrification

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1668-2

Abstract:

● Efficient carbon methanation and nitrogen removal was achieved in AnMBR-PN/A system.

Keywords： Anaerobic membrane bioreactor     Partial nitrification/Anammox     Carbon separation     Chemolitrophic nitrogen    

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A heterotrophic nitrification-aerobic denitrification bacterium TJPU05 suitable for nitrogen removal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1503-6

Abstract:

• H. venusta TJPU05 showed excellent HN-AD ability at high salinity.

Keywords： Salt-tolerant bacteria     H. venusta TJPU05     Heterotrophic nitrification and aerobic denitrification    

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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 fromRoot exudates from canola significantly reduced nitrification rates of both N. multiformisnitrification inhibition across the three cultivars was similar to the well-studied high-BNIBy reducing nitrification rates canola crops may decrease N losses, increase plant N uptake and encourage

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

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Improvement of nitrification efficiency by bioaugmentation in sequencing batch reactors at low temperature

Di CUI,Ang LI,Tian QIU,Rui CAI,Changlong PANG,Jihua WANG,Jixian YANG,Fang MA,Nanqi REN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 937-944 doi: 10.1007/s11783-014-0668-7

Abstract: accelerate the start-up and promote achieving the stable operation of the low-temperature SBRs for nitrification

Keywords： nitrification     sequencing batch reactors (SBRs)     bioaugmentation     low temperature    

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Effects of hydraulic retention time on nitrification activities and population dynamics of a conventional

Hongyan LI, Yu ZHANG, Min YANG, Yoichi KAMAGATA

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 43-48 doi: 10.1007/s11783-012-0397-8

Abstract: The effects of hydraulic retention time (HRT) on the nitrification activities and population dynamics

Keywords： ammonia-oxidizing bacteria     hydraulic retention time     nitrification activity     nitrite-oxidizing bacteria    

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Factors affecting simultaneous nitrification and denitrification in an SBBR treating domestic wastewater

LI Jun, GU Guowei, PENG Yongzhen, WEI Su

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 246-250 doi: 10.1007/s11783-007-0042-0

Abstract: reactor (SBBR) packed with Bauer rings was used to treat real domestic wastewater for simultaneous nitrificationadvantageous for creating an anoxic condition, and the biofilm can absorb and store carbon for good nitrificationAn average concentration of oxygen ranging from 0.8 to 4.0 mg/L was proved very efficient for nitrificationThe efficiency of simultaneous nitrification and denitrification (SND) increased with increasing thickness
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Community dynamics of ammonia oxidizing bacteria in a full-scale wastewater treatment system with nitrification

Xiaohui WANG, Xianghua WEN, Hengjing YAN, Kun DING, Man HU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 92-98 doi: 10.1007/s11783-010-0254-6

Abstract: To determine whether the functional stability of nitrification was correlated to a stable community structureThe T-RFLP results indicated that during the period of nitrification stability, the AOB community structurein the full-scale wastewater treatment system was relatively stable, and the average change rate everystructure was relatively stable in the full-scale wastewater treatment system with functional stability of nitrification

Keywords： ammonia-oxidizing bacteria (AOB)     community dynamics     terminal restriction fragment length polymorphism (T-RFLP)     nitrification    

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Impact of total organic carbon and chlorine to ammonia ratio on nitrification in a bench-scale drinking

Yongji ZHANG, Lingling ZHOU, Guo ZENG, Huiping DENG, Guibai LI

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 430-437 doi: 10.1007/s11783-010-0247-5

Abstract: Nitrification occurs in chloraminated drinking water systems and is affected by water quality parametersof this study was to investigate the impact of total organic carbon and chlorine to ammonia ratio on nitrificationThe occurrence of nitrification and activity of nitrifying bacteria was primarily monitored using fourThe results indicated that nitrification occurred despite at a low influent concentration of ammonia,The chlorine to ammonia ratio did not have a significant impact on the occurrence of nitrification.

Keywords： nitrification     drinking water     ammonia- oxidizing bacteria (AOB)     chloramines     organic carbon     heterotrophic    

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the upgrade process of a full-scale landfill leachate treatment plant – from conventional to partial nitrification-denitrification

Binbin Sheng, Depeng Wang, Xianrong Liu, Guangxing Yang, Wu Zeng, Yiqing Yang, Fangang Meng

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1272-7

Abstract: Because of the low access to biodegradable organic substances used for denitrification, the partial nitrification-denitrificationIn this study, the process upgrade from conventional to partial nitrification-denitrification was comprehensivelyThe partial nitrification-denitrification system was successfully achieved through the optimizing dissolvedaccumulation occurred in the reactor (reaching 98.8 mg/L), indicating high-efficiency of the partial nitrificationThe results obtained in this study advanced our understanding of the operation of a partial nitrification-denitrification

Keywords： Landfill leachate     Process upgrade     Partial nitrification-denitrification     Bacterial community     Metagenomics    

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Enhanced nitrification in integrated floating fixed-film activated sludge (IFFAS) system using novel

Aoshuang Jing, Tao Liu, Xie Quan, Shuo Chen, Yaobin Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1153-0

Abstract: Novel carriers had the capability of nitrification-enhancing.The integrated floating fixed-film activated sludge (IFFAS) process is an ideal preference for nitrificationthis study, novel clinoptilolite composite carriers with favorable hydrophilicity, positive charge and nitrification-enhancingusing novel clinoptilolite composite carriers comparing with using PE carriers, which ensured enhanced nitrificationThis study was expected to provide a practical option for enhancing wastewater nitrification performance

Keywords： carrier     Clinoptilolite     Integrated floating fixed-film activated sludge (IFFAS)     Microbial community     Nitrification    

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Title Author Date Type Operation

REGIONAL ASSESSMENT OF SOIL NITROGEN MINERALIZATION IN DIVERSE CROPLAND OF A REPRESENTATIVE INTENSIVE AGRICULTURAL AREA

Journal Article

Achievement of high rate nitritation with aerobic granular sludge reactors enhanced by sludge recirculation

Zulkifly JEMAAT,Josep Anton TORA,Albert BARTROLI,Julián CARRERA,Julio PEREZ

Journal Article

Start-up of PN-anammox system under low inoculation quantity and its restoration after low-loading rate

Guoliang Zhang, Liang Zhang, Xiaoyu Han, Shujun Zhang, Yongzhen Peng

Journal Article

Applicability of the Arrhenius model for Ammonia Oxidizing Bacteria subjected to temperature time gradients

Alberto MANNUCCI,Giulio MUNZ,Gualtiero MORI,Claudio LUBELLO,Jan A. OLESZKIEWICZ

Journal Article

Simultaneous nitrification and denitrification in activated sludge system under low oxygen concentration

ZHANG Peng, ZHOU Qi

Journal Article

Methanation and chemolitrophic nitrogen removal by an anaerobic membrane bioreactor coupled partial nitrification

Journal Article

A heterotrophic nitrification-aerobic denitrification bacterium TJPU05 suitable for nitrogen removal

Journal Article

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

Journal Article

Improvement of nitrification efficiency by bioaugmentation in sequencing batch reactors at low temperature

Di CUI,Ang LI,Tian QIU,Rui CAI,Changlong PANG,Jihua WANG,Jixian YANG,Fang MA,Nanqi REN

Journal Article

Effects of hydraulic retention time on nitrification activities and population dynamics of a conventional

Hongyan LI, Yu ZHANG, Min YANG, Yoichi KAMAGATA

Journal Article

Factors affecting simultaneous nitrification and denitrification in an SBBR treating domestic wastewater

LI Jun, GU Guowei, PENG Yongzhen, WEI Su

Journal Article

Community dynamics of ammonia oxidizing bacteria in a full-scale wastewater treatment system with nitrification

Xiaohui WANG, Xianghua WEN, Hengjing YAN, Kun DING, Man HU

Journal Article

Impact of total organic carbon and chlorine to ammonia ratio on nitrification in a bench-scale drinking

Yongji ZHANG, Lingling ZHOU, Guo ZENG, Huiping DENG, Guibai LI

Journal Article

the upgrade process of a full-scale landfill leachate treatment plant – from conventional to partial nitrification-denitrification

Binbin Sheng, Depeng Wang, Xianrong Liu, Guangxing Yang, Wu Zeng, Yiqing Yang, Fangang Meng

Journal Article

Enhanced nitrification in integrated floating fixed-film activated sludge (IFFAS) system using novel

Aoshuang Jing, Tao Liu, Xie Quan, Shuo Chen, Yaobin Zhang

Journal Article