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Advantages of intermittently aerated SBR over conventional SBR on nitrogen removal for the treatment

Xiaoyan Song, Rui Liu, Lujun Chen, Baogang Dong, Tomoki Kawagishi

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0941-7

Abstract: An intermittently aerated sequencing batch reactor (IASBR) and a traditional sequencing batch reactor (SBR) were parallelly constructed to treat digested piggery wastewater, which was in high NH -N concentration but in a low COD/TN ratio. Their pollutant removal performance was compared under COD/TN ratios of 1.6–3.4 d and hydraulic retention times of 5–3 d. The results showed that the IASBR removed TN, NH -N and TOC more efficiently than the SBR. The average removal rates of TN, NH -N and TOC were 83.1%, 96.5%, and 89.0%, respectively, in the IASBR, significantly higher than the corresponding values of 74.8%, 82.0%, and 86.2% in the SBR. Mass balance of organic carbon revealed that the higher TN removal in the IASBR might be attributed to its efficient utilization of the organic carbon for denitrification, since that 48.7%–52.2% of COD was used for denitrification in the IASBR, higher than the corresponding proportion of 43.1%–47.4% in the SBR. A pre-anoxic process in the IASBR would enhance the ammonium oxidation while restrict the nitrite oxidation. Anoxic duration of 40–80 min should be beneficial for achieving stable nitritation.

Keywords： Anoxic stress     Carbon source     Digested piggery wastewater     Intermittently aerated SBR (IASBR)     Total nitrogen    

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of a Novel Feedforward Neural Network Model Based on Controllable Parameters for Predicting Effluent TotalNitrogen Article

Zihao Zhao, Zihao Wang, Jialuo Yuan, Jun Ma, Zheling He, Yilan Xu, Xiaojia Shen, Liang Zhu

Engineering 2021, Volume 7, Issue 2,   Pages 195-202 doi: 10.1016/j.eng.2020.07.027

Abstract:

The problem of effluent total nitrogen (TN) at most of the wastewater treatment plants (WWTPs) in

Keywords： neural network (FFNN)     Algorithms     Controllable operation parameters     Sequencing batch reactor (SBR)     Totalnitrogen (TN)    

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Nitrogen removal performance of municipal reverse osmosis concentrate with low C/N ratio by membrane-aerated

Xiao Quan, Kai Huang, Mei Li, Meichao Lan, Baoan Li

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1047-6

Abstract:

MABR exhibits excellent TN removal performance for treating ROC with low C/N ratio.

Operating conditions should be properly controlled to achieve optimal TN removal.

Denitrifying bacteria and NOB are proved notably inhibited by high salinity stress.

The TN removal rate remains over 70% when the NaCl addition amount is below 20 g/L.

Keywords： Membrane-aerated biofilm reactor (MABR)     Salinity     Total nitrogen     Reverse osmosis concentrate    

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Performance of an ANAMMOX reactor treating wastewater generated by antibiotic and starch production processes

Hong YAO, Hao LIU, Yongmiao HE, Shujun ZHANG, Peizhe SUN, Chinghua HUANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 875-883 doi: 10.1007/s11783-012-0459-y

Abstract: that the ratio of influent ammonium to nitrite, pH, and temperature can all affect the efficiency of nitrogenThe total nitrogen (TN) loading rate was 0.15–0.30 kgN·m ·d , pH remained at 7.8–8.5, and temperature

Keywords： anaerobic ammonia oxidation     antibiotic and starch production     ratio of ammonia to nitrite     total nitrogen    

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The evaluation method of best available technology for emission reduction of ammonia in nitrogen fertilizer

Luo Qijin,Chen Jianyu,Wang Zhenxing,Pang Zhihua,Ye Wansheng

Strategic Study of CAE 2014, Volume 16, Issue 8,   Pages 88-92

Abstract:

According to the request of emission reduction of industry and totalinvestigates the comprehensive evaluation methods of emission reduction technologies---a case study of nitrogencombined,a kind of evaluation method of best available technology for emission reduction of ammonia in nitrogen

Keywords： ammonia     total amount control     comprehensive evaluation    

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Simultaneous removal of total oxidizable carbon, phosphate and various metallic ions from HO solution

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 470-482 doi: 10.1007/s11705-022-2231-6

Abstract: Accordingly, the removal efficiency of total oxidizable carbon, phosphate and metallic ions from theThe removal efficiency of 82.7% for total oxidizable carbon, 34.2% for phosphate, 87.1% for Fe3+, 83.2% for Al3+, 55.1% for Ca2+ and 66.6% for Mg2+, with a total

Keywords： adsorption     zirconia     total oxidizable carbon     phosphate     metallic ions     hydrogen peroxide    

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Implementation of total Lagrangian formulation for the elasto-plastic analysis of plane steel frames

Bing XIA, Yuching WU, Zhanfei HUANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 257-266 doi: 10.1007/s11709-012-0163-9

Abstract: In this paper, the co-rotational total Lagrangian forms of finite element formulations are derived to

Keywords： co-rotational     total Lagrangian     geometrical nonlinearity     fire     elasto-plastic    

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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    

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Exergy and exergoeconomic analyses for integration of aromatics separation with aromatics upgrading

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 183-193 doi: 10.1007/s11705-022-2192-9

Abstract: The process generates lower total exergy destruction when the splitting ratio of toluene varies betweenNevertheless, the process presents lower total product unit cost with the splitting ratio of tolueneBesides, it is found that distillation is the biggest contributor to the total exergy destruction, accounting

Keywords： aromatics separation and upgrading     variant splitting ratios     total exergy destruction     total product    

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Critical flow-storm approach to total maximum daily load (TMDL) development: an analytical conceptual

Zhang Harry, Yu Shaw

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 267-273 doi: 10.1007/s11783-008-0058-0

Abstract: One of the key challenges in the total maximum daily load (TMDL) development process is how to define

Keywords： representative hydrologic     occurrence     simulation approach     scarcity     alternative    

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SUSTAINABLE NITROGEN MANAGEMENT FOR VEGETABLE PRODUCTION IN CHINA

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 373-385 doi: 10.15302/J-FASE-2022455

Abstract:

● Sustainable nitrogen management strategies for Chinese vegetable production

Keywords： enhanced-efficiency nitrogen fertilizer     integrated knowledge and products strategy     nitrogen rate     reactivenitrogen loss     vegetable     yield    

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EFFECTS OF SUBSTITUTION OF MINERAL NITROGEN WITH ORGANIC AMENDMENTS ON NITROGEN LOSS FROM SLOPING CROPLAND

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 396-406 doi: 10.15302/J-FASE-2022456

Abstract:

● Interflow acts as the dominant pathway for N loss loadings.

Keywords： improved fertilization regime     interflow     nitrogen forms     nitrogen leaching     purple soil     sloping cropland    

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Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 985-995 doi: 10.1007/s11705-021-2126-y

Abstract: The high contents of nitrogen-containing organic compounds in biocrude obtained from hydrothermal liquefactionThree main forms of nitrogen-containing organic compounds including nitrogen-heterocyclic compounds,The contents of nitrogen-heterocyclic compounds decreased with temperature while amide kept increasingThe effect of residence time on the components of nitrogen-containing organic compounds was similar withcomparing with the nitrogen in neutral amino acids of Chlorella sp.

Keywords： microalgae     hydrothermal liquefaction     biocrude     nitrogen distribution    

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SOIL NITROGEN CYCLING AND ENVIRONMENTAL IMPACTS IN THE SUBTROPICAL HILLY REGION OF CHINA: EVIDENCE FROM

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 407-424 doi: 10.15302/J-FASE-2022448

Abstract:

● Soil nitrogen fluxes and influencing factors were reviewed in the

Keywords： nitrogen cycling     soil nitrogen     nitrogen deposition     greenhouse gases emission     non-point source pollution     nitrogen use efficiency    

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PROGRESS ON IMPROVING AGRICULTURAL NITROGEN USE EFFICIENCY: UK-CHINA VIRTUAL JOINT CENTERS ON NITROGEN

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 475-489 doi: 10.15302/J-FASE-2022459

Abstract:

● Virtual joint centers on N agronomy were established between UK and China.

Keywords： CINAg     N-CIRCLE     nitrogen use efficiency     reactive nitrogen     sustainable production    

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Title Author Date Type Operation

Advantages of intermittently aerated SBR over conventional SBR on nitrogen removal for the treatment

Xiaoyan Song, Rui Liu, Lujun Chen, Baogang Dong, Tomoki Kawagishi

Journal Article

of a Novel Feedforward Neural Network Model Based on Controllable Parameters for Predicting Effluent TotalNitrogen

Zihao Zhao, Zihao Wang, Jialuo Yuan, Jun Ma, Zheling He, Yilan Xu, Xiaojia Shen, Liang Zhu

Journal Article

Nitrogen removal performance of municipal reverse osmosis concentrate with low C/N ratio by membrane-aerated

Xiao Quan, Kai Huang, Mei Li, Meichao Lan, Baoan Li

Journal Article

Performance of an ANAMMOX reactor treating wastewater generated by antibiotic and starch production processes

Hong YAO, Hao LIU, Yongmiao HE, Shujun ZHANG, Peizhe SUN, Chinghua HUANG

Journal Article

The evaluation method of best available technology for emission reduction of ammonia in nitrogen fertilizer

Luo Qijin,Chen Jianyu,Wang Zhenxing,Pang Zhihua,Ye Wansheng

Journal Article

Simultaneous removal of total oxidizable carbon, phosphate and various metallic ions from HO solution

Journal Article

Implementation of total Lagrangian formulation for the elasto-plastic analysis of plane steel frames

Bing XIA, Yuching WU, Zhanfei HUANG

Journal Article

SUSTAINABLE NITROGEN MANAGEMENT IN AUSTRALIAN AGROECOSYSTEMS: CHALLENGES AND OPPORTUNITIES

Journal Article

Exergy and exergoeconomic analyses for integration of aromatics separation with aromatics upgrading

Journal Article

Critical flow-storm approach to total maximum daily load (TMDL) development: an analytical conceptual

Zhang Harry, Yu Shaw

Journal Article

SUSTAINABLE NITROGEN MANAGEMENT FOR VEGETABLE PRODUCTION IN CHINA

Journal Article

EFFECTS OF SUBSTITUTION OF MINERAL NITROGEN WITH ORGANIC AMENDMENTS ON NITROGEN LOSS FROM SLOPING CROPLAND

Journal Article

Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Journal Article

SOIL NITROGEN CYCLING AND ENVIRONMENTAL IMPACTS IN THE SUBTROPICAL HILLY REGION OF CHINA: EVIDENCE FROM

Journal Article

PROGRESS ON IMPROVING AGRICULTURAL NITROGEN USE EFFICIENCY: UK-CHINA VIRTUAL JOINT CENTERS ON NITROGEN

Journal Article