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Anaerobic treatment of fresh leachate from a municipal solid waste incinerator by upflow blanket filter reactor

Pinjing HE, Min LI, Suyun XU, Liming SHAO,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 404-411 doi: 10.1007/s11783-009-0149-6

Abstract: partial effluent recycling, the organic loading rates increased from 0.51to 14.56kg CODBased on the distribution of COD fluxes in the process, it was concluded that anabolism was the mainpathway of COD removal in the initial phase (1―33d), accounting for 57%―85% of totalCOD removed.anaerobic consortium of bacteria reached steady-state (after 70―86d), the majority of COD

Keywords： distribution of COD fluxes     effluent recycling     leachate     methane yield     organic loading rate     upflow blanket    

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CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 559-567 doi: 10.15302/J-FASE -2020344

Abstract: determinations published over the past 50 years reveals a gradual decreasing trend in the concentrations and fluxesA strong correlation was found between the riverine DIN fluxes and the estimated DIN inputs from theimpacts and indicate a potentially significant influence of atmospheric deposition on DIN loadings and fluxes

Keywords： atmospheric deposition / ecological impacts / nitrogen sources / nutrients / Yangtze delta    

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Nitrate removal to its fate in wetland mesocosm filled with sponge iron: Impact of influent COD/N ratio

Zhihao Si, Xinshan Song, Xin Cao, Yuhui Wang, Yifei Wang, Yufeng Zhao, Xiaoyan Ge, Awet Arefe Tesfahunegn

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1183-7

Abstract: CW-Fe allowed a high-performance of NO3‒-N removal at the COD/N ratio of 0.Higher COD/N resulted in lower chem-denitrification and higher bio-denitrification.The NO3‒-N reduction property and water quality parameters (pH, DO, and ORP) were examined at three CODproduced by chemical denitrification, and approximately 50% of the NO3‒-N was reduced to NH4+-N, at the CODAlthough chemical denitrification mediated by s-Fe0 led to an accumulation of NH4+-N at COD/N ratios

Keywords： Sponge iron     Wetland mesocosm     Electronic donor     Denitrification     COD/N ratio    

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microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane production and COD

Chong Liu, Jianzheng Li, Shuo Wang, Loring Nies

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0856-8

Abstract: Methane yield and COD removal were enhanced by bioaugmentation of microflora B83.To enhance anaerobic wastewater treatment process for methane production and COD removal, a syntrophicWith the same inoculation dosage of the microflora B83, COD removal in organic wastewater treatment processwas improved from 75.6% to 86.6%, while the specific methane production by COD removal was increased

Keywords： Anaerobic wastewater treatment     Methane production     Hydrogen-producing acetogenesis     Methanogenesis     Rate-limiting step     Bioaugmentation    

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mechanisms of key functional microorganisms in the partial denitrification-anammox process induced by COD

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1703-3

Abstract:

● The availability of PD-anammox was investigated with higher NO3––N concentration.

Keywords： PD-anammox process     Nitrite accumulation     COD     Microbial interaction    

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CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

Yandan FU, Jiahui KANG, Ziyue LI, Xuejun LIU, Wen XU

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 559-567 doi: 10.15302/J-FASE-2020344

Abstract: determinations published over the past 50 years reveals a gradual decreasing trend in the concentrations and fluxesA strong correlation was found between the riverine DIN fluxes and the estimated DIN inputs from theimpacts and indicate a potentially significant influence of atmospheric deposition on DIN loadings and fluxes

Keywords： atmospheric deposition     ecological impacts     nitrogen sources     nutrients     Yangtze River Delta    

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Characterization of CANON reactor performance and microbial community shifts with elevated COD/N ratios

Yao Zhang, Yayi Wang, Yuan Yan, Haicheng Han, Min Wu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1095-6

Abstract:

COD/N at low ratios (0–0.82) improved N removals of CANON.

CANON performance decreased after COD/N up tolistitem>

The relative abundance of AOB decreased continuously with increasing COD

AOB outcompeted at a high COD load led to CANON>

The relative abundance of AnAOB decreased and increased with increasing COD

Keywords： CANON process     COD/N ratio     Anammox     Ammonia oxidizing bacteria     Aerobic heterotrophic bacteria    

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A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 629-641 doi: 10.1007/s11709-017-0447-1

Abstract: A new fracture criterion based on the crack opening displacement for peridynamic (PD) and dual-horizon peridynamics (DH-PD) is proposed. When the relative deformation of the PD bond between the particles reaches the critical crack tip opening displacement of the fracture mechanics, we assume that the bond force vanishes. A new damage rule similar to the local damage rule in conventional PD is introduced to simulate fracture. The new formulation is developed for a linear elastic solid though the extension to nonlinear materials is straightforward. The performance of the new fracture criterion is demonstrated by four examples, i.e. a bilateral crack problem, double parallel crack, monoclinic crack and the double inclined crack. The results are compared to experimental data and the results obtained by other computational methods.

Keywords： Castigliano’s theorem     breaking energy     critical extension     XFEM     COD     PD-COD    

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Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1453-z

Abstract:

• ZnO-NP disrupted metabolic/catabolic balance of bacteria by affecting DHA activity.

Keywords： Granular sludge     Biotoxicity     Reactive oxygen species     Extracellular polymeric substances    

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K+ and Na+ fluxes in roots of two Chinese Iris populations

Pinfang LI,Biao ZHANG

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 2,   Pages 144-149 doi: 10.15302/J-FASE-2014016

Abstract: Observations on ionic response to salinity and net fluxes of K , Na in the root exhibited by plantsNet fluxes of K , Na from the apex and along the root axis to 10.8 mm were measured using non-invasive

Keywords： Iris lactea Pall. var. chinensis (Fisch.) Koidz     population     K+ and Na+     ion flux     non-invasive micro-test technique    

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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) emissionsN O emission and purification performance of wastewater were very strongly dependent on COD concentrationin the influent, and the total N O emission in the system with middle COD influent concentration wasagainst principal components indicated that different water parameters affected N O flux with different COD

Keywords： free water surface constructed wetland     nitrous oxide emission     water quality parameter     principal component analysis     multiple linear regression    

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Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 784-791 doi: 10.1007/s11783-013-0590-4

Abstract: Renewable algae biomass, was used as substrate for generating electricity in two chamber microbial fuel cells (MFCs). From polarization test, maximum power density with pretreated algal biomass was 102 mW·m (951 mW·m ) at current generation of 276 mA·m . The individual electrode potential as a function of current generation suggested that anodic oxidation process of algae substrate had limitation for high current generation in MFC. Total chemical oxygen demand (TCOD) reduction of 74% was obtained when initial TCOD concentration was 534 mg·L for 150 h of operation. The main organic compounds of algae oriented biomass were lactate and acetate, which were mainly used for electricity generation. Other by-products such as propionate and butyrate were formed at a negligible amount. Electrochemical Impedance Spectroscopy (EIS) analysis pinpointed the charge transfer resistance (112 ?) of anode electrode, and the exchange current density of anode electrode was 1214 nA·cm .

Keywords： microbial fuel cell (MFC)     algae     bioelectricity     substrate     volatile fatty acid     biomass     COD removal efficiency    

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and microbial communities in full-scale IFAS and MBBR municipal wastewater treatment plants at high COD

Supaporn Phanwilai, Naluporn Kangwannarakul, Pongsak (Lek) Noophan, Tamao Kasahara, Akihiko Terada, Junko Munakata-Marr, Linda Ann Figueroa

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1374-2

Abstract: Abstract • Two IFAS and two MBBR full-scale systems (high COD:N ratio 8:1) were characterized. • HighInfluent COD to N ratios ranged from 8:1 to 15:1.The COD and BOD removal efficiencies were high (96%–98%); NH4+-N and TN removal efficiencies were moreThe extent of TN removal was higher at high SRT, high COD:N ratio and low DO concentration in the anoxic, and carriers with greater surface area may be recommended for high COD, BOD and TN removal in WRRFs

Keywords： IFAS     MBBR     AnodkalnessTM K1 carrier     Polypropylene resin carrier     Sponge carrier    

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Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 236-242 doi: 10.1007/s11783-010-0218-8

Abstract: Copper and zinc interaction on clearance from water and distribution in different tissues was investigated

Keywords： interaction     mussel     copper     zinc     clearance     distribution    

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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: ., reaction temperature, residence time, solid loading rate) on the distribution of nitrogen in the oildifferences of amino acids in the protein components in the two microalgae might affect the nitrogen distribution

Keywords： microalgae     hydrothermal liquefaction     biocrude     nitrogen distribution    

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Title Author Date Type Operation

Anaerobic treatment of fresh leachate from a municipal solid waste incinerator by upflow blanket filter reactor

Pinjing HE, Min LI, Suyun XU, Liming SHAO,

Journal Article

CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

Journal Article

Nitrate removal to its fate in wetland mesocosm filled with sponge iron: Impact of influent COD/N ratio

Zhihao Si, Xinshan Song, Xin Cao, Yuhui Wang, Yifei Wang, Yufeng Zhao, Xiaoyan Ge, Awet Arefe Tesfahunegn

Journal Article

microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane production and COD

Chong Liu, Jianzheng Li, Shuo Wang, Loring Nies

Journal Article

mechanisms of key functional microorganisms in the partial denitrification-anammox process induced by COD

Journal Article

CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

Yandan FU, Jiahui KANG, Ziyue LI, Xuejun LIU, Wen XU

Journal Article

Characterization of CANON reactor performance and microbial community shifts with elevated COD/N ratios

Yao Zhang, Yayi Wang, Yuan Yan, Haicheng Han, Min Wu

Journal Article

A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Journal Article

Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD

Journal Article

K+ and Na+ fluxes in roots of two Chinese Iris populations

Pinfang LI,Biao ZHANG

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

Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

Journal Article

and microbial communities in full-scale IFAS and MBBR municipal wastewater treatment plants at high COD

Supaporn Phanwilai, Naluporn Kangwannarakul, Pongsak (Lek) Noophan, Tamao Kasahara, Akihiko Terada, Junko Munakata-Marr, Linda Ann Figueroa

Journal Article

Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Journal Article

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

Journal Article