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extracellular polymeric substances 2

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humic acid (HA) 2

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Evolution of humic substances in polymerization of polyphenol and amino acid based on non-destructive

Jianmei Zou, Jianzhi Huang, Huichun Zhang, Dongbei Yue

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1297-y

Abstract: • Humification process from precursors to fulvic and humic acid was confirmed. • MnO2 alone had limitedwas to use non-destructive measurement methods to investigate the role of MnO2 in the evolution of humicsubstances (HSs) during oxidative polymerization of polyphenol-amino acid.identified that MnO2 alone had a limited ability in accelerating the transformation of fulvic acid (FA) to humic

Keywords： Two-dimensional correlation spectroscopy (2D-COS)     Humic substances (HSs)     Humification     Manganese dioxide    

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Recovering humic substances from the dewatering effluent of thermally treated sludge and its performance

Yuning YANG,Huan LI

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 578-584 doi: 10.1007/s11783-015-0827-5

Abstract: On the other hand, humic substances are an important source of organic fertilizer.In this study, a novel process using ferric coagulant was developed to recover humic substances fromWhen ferric coagulant was applied to raw dewatering effluent, up to 70% of humic substances were enmeshedThe proper mass ratio of iron ions to humic substances was 0.6.In the recovered material, humic substances accounted for 24.2% of the total dry solids, and the amount

Keywords： sewage sludge     humic substances     recovery     phosphorus     fertilizer    

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Characterization of humic substances in bio-treated municipal solid waste landfill leachate

Guangxia QI, Dongbei YUE, Yongfeng NIE

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 711-716 doi: 10.1007/s11783-012-0421-z

Abstract: Humic substances (HSs) dominate the organic matter in bio-treated landfill leachate.In this study, the HSs from landfill leachate treated by membrane bioreactor (MBR-HSs) were analyzedCompared with commercial HSs, MBR-HSs had lower carbon content [48.14% for fulvic acids (FA) and 49.52%for humic acids (HA)], higher nitrogen content (4.31% for FA and 6.16% for HA), lower aromatic structureof waste-derived HSs, indicating that MBR-HSs appeared to be more similar to humus-derived HSs than waste-derived

Keywords： bio-treated landfill leachate     humic substances     elemental analysis     spectroscopic characteristics    

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Effect of natural aquatic humic substances on the photodegradation of bisphenol A

ZHAN Manjun, YANG Xi, KONG Lingren, YANG Hongshen

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 311-315 doi: 10.1007/s11783-007-0052-y

Abstract: The photochemical degradation of bisphenol A (BPA) was studied in the presence of natural humic sub stancesunderwent insignificant direct photolysis in neutral water, but rapid photosensitized degradation in four humicsubstances solutions via pseudo-first-order reaction occurred.·OH and O produced from excitation of humic substances under irradiation was determined from the quenchingBPA were proposed, involving the direct photolysis due to the energy transfer from the triplet state humic

Keywords： irradiation     photoproduct     deoxygenated     possible phototransformation     bisphenol    

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Effects of oxidizing environment on digestate humification and identification of substances governing

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1520-0

Abstract:

• Liquid digestate humification was investigated under different oxidizing environment.

Keywords： Liquid digestate     MnO2     Oxygen     DOM transformation     Humic-like acids    

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variation in environmentally persistent free radicals and the generation of reactive radical species in humicsubstances

Yafang Shi, Yunchao Dai, Ziwen Liu, Xiaofeng Nie, Song Zhao, Chi Zhang, Hanzhong Jia

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1285-2

Abstract: Environmentally persistent free radicals (EPFRs) in humic substances play an essential role in soil geochemicalin aquatic environments; however, the impacts of light irradiation on the variation of EPFRs in soil humicsubstances remain unclear.substances rapidly increased during the initial 20 min and then gradually reached a plateau.Our findings indicate that under the irradiation humic substances are likely to be more toxic and reactive

Keywords： Peat     Humic substances     Environmentally persistent free radicals     Light irradiation     Reactive radical species    

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Intermediate HSS bracing members during seismic excitations: modeling, design, and behavior

Madhar HADDAD

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 148-162 doi: 10.1007/s11709-016-0375-5

Abstract: Concentric hollow structural section (HSS) bracing members are used frequently in steel framed structuralFinite element modeling of the HSS braces that utilizes the true stress-strain curves produces hysteresisstress-strain curves are directly obtained from tests on stub-columns extracted from the full scale HSS

Keywords： HSS     FEM     stress-strain curves     damage model    

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Interaction and combined toxicity of microplastics and per- and polyfluoroalkyl substances in aquatic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1571-2

Abstract:

● Adsorption of PFASs on MPs and its mechanisms are critically reviewed.

Keywords： Microplastics     Per- and Polyfluoroalkyl substances     Adsorption     Transport     Transformation    

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Two-step hydrothermal conversion of biomass waste to humic acid using hydrochar as intermediate

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1719-8

Abstract: Converting biomass materials to humic acid is a sustainable method for humic acid production and achieveA two-step hydrothermal treatment method was adopted in this study to produce humic acid from corn stalksTheir chemical properties were then analyzed, and the hydrochar-derived humic acids were produced under

Keywords： Biowaste     Hydrochar     Humic acid     Hydrothermal parameter     Unsaturation    

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Influence of extracellular polymeric substances from activated sludge on the aggregation kinetics of

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1450-2

Abstract:

• The NPs aggregation in the electrolyte solution is consistent with the DLVO theory.

Keywords： Silver nanoparticles     Silver sulfide nanoparticles     Extracellular polymeric substances     Aggregation kinetics    

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Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 493-497 doi: 10.1007/s11783-012-0416-9

Abstract: Biosorption of extracellular polymeric substances (EPS) from sp.Fluorescence of peak A (Ex/Em= 275/452 nm) and peak C (Ex/Em= 350/452 nm) were originated from humic-likesubstances and fluorescence of peak B (Ex/Em= 275/338 nm) was attributed to protein-like substances.The binding constants (lg K ) followed the order of peak A>peak B>peak C, implying that the humic-likesubstances in EPS have greater Cu(II) binding capacity than the protein-like substances.

Keywords： biosorption     conditional binding constant     extracellular polymeric substances (EPS)     fluorescence quenching    

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Rapid control of black and odorous substances from heavily-polluted sediment by oxidation: Efficiency

Kun Li, Min Yang, Jianfeng Peng, Ruiping Liu, Tista Prasai Joshi, Yaohui Bai, Huijuan Liu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 6, doi: 10.1007/s11783-019-1171-y

Abstract: Oxidants were proposed to rapidly control black and odorous substances in sediments.NaClO and KMnO4 had excellent efficiency to remove black and odorous substances.The control of black and odorous substances in sediments is of crucial importance to improve the urbanoxidation by the oxidants NaClO, H2O2, and KMnO4 was proposed to achieve rapid control of black and odorous substancesComparatively, H2O2 showed a lower effect on the removal of black and odorous substances, pollutant release

Keywords： Oxidants     Heavily polluted sediment     Black and odorous substances     Release behaviors     Microorganism    

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Electrochemical oxidation of humic acid at the antimony- and nickel-doped tin oxide electrode

TANG Chengli,YAN Wei,ZHENG Chunli

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 337-344 doi: 10.1007/s11783-013-0545-9

Abstract: This work investigated the degradation of humic acid (HA) in aqueous solution by electrochemical oxidation

Keywords： electrochemical oxidation     humic acid (HA)     natural water     Ni-Sb-SnO2/Ti electrode    

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Effects of humic acid on residual Al control in drinking water treatment plants with orthophosphate addition

Wendong WANG, Hua LI, Zhenzhen DING, Xiaochang WANG, Rui LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 470-476 doi: 10.1007/s11783-012-0422-y

Abstract: This study aimed to investigate the effects of humic acid (HA) on residual Al control in drinking water

Keywords： coagulation     drinking water     humic acid     orthophosphate     residual Al    

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Kinematic Model Building and Servo Parameter Identification of 3-HSS Parallel Mechanism

YANG Zhi-yong, WU Jiang, HUANG Tian, NI Yan-bing

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 60-66 doi: 10.1007/s11465-005-0019-2

Abstract:

Aiming at a parallel mechanism with three degrees of freedom, a method for dynamic model building and the parameter identification of its servosystem is presented. First, the reverse solution models of position, velocity, and acceleration of parallelogram branch structure are deduced, and then, its dynamic model of a rigid body is set up by using the virtual work principle. Based on the above model, a method to identify the servo parameter of the parallel mechanism is put up. In this method, the triangle-shaped input with variable frequency is adopted to offset the disadvantages of pseudorandom number sequence in parameter identification, such as dramatically changing the vibration amplitude of the motor, easily impacting the motor that results in its velocity loop to easily open, and so on. Moreover, the rotary inertia can also be identified by the additive mass. The abovementioned data will lay a solid foundation for the optimum performance of the system in the whole workspace.

Keywords： building     acceleration     additive     workspace     optimum performance    

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Title Author Date Type Operation

Evolution of humic substances in polymerization of polyphenol and amino acid based on non-destructive

Jianmei Zou, Jianzhi Huang, Huichun Zhang, Dongbei Yue

Journal Article

Recovering humic substances from the dewatering effluent of thermally treated sludge and its performance

Yuning YANG,Huan LI

Journal Article

Characterization of humic substances in bio-treated municipal solid waste landfill leachate

Guangxia QI, Dongbei YUE, Yongfeng NIE

Journal Article

Effect of natural aquatic humic substances on the photodegradation of bisphenol A

ZHAN Manjun, YANG Xi, KONG Lingren, YANG Hongshen

Journal Article

Effects of oxidizing environment on digestate humification and identification of substances governing

Journal Article

variation in environmentally persistent free radicals and the generation of reactive radical species in humicsubstances

Yafang Shi, Yunchao Dai, Ziwen Liu, Xiaofeng Nie, Song Zhao, Chi Zhang, Hanzhong Jia

Journal Article

Intermediate HSS bracing members during seismic excitations: modeling, design, and behavior

Madhar HADDAD

Journal Article

Interaction and combined toxicity of microplastics and per- and polyfluoroalkyl substances in aquatic

Journal Article

Two-step hydrothermal conversion of biomass waste to humic acid using hydrochar as intermediate

Journal Article

Influence of extracellular polymeric substances from activated sludge on the aggregation kinetics of

Journal Article

Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

Journal Article

Rapid control of black and odorous substances from heavily-polluted sediment by oxidation: Efficiency

Kun Li, Min Yang, Jianfeng Peng, Ruiping Liu, Tista Prasai Joshi, Yaohui Bai, Huijuan Liu

Journal Article

Electrochemical oxidation of humic acid at the antimony- and nickel-doped tin oxide electrode

TANG Chengli,YAN Wei,ZHENG Chunli

Journal Article

Effects of humic acid on residual Al control in drinking water treatment plants with orthophosphate addition

Wendong WANG, Hua LI, Zhenzhen DING, Xiaochang WANG, Rui LIU

Journal Article

Kinematic Model Building and Servo Parameter Identification of 3-HSS Parallel Mechanism

YANG Zhi-yong, WU Jiang, HUANG Tian, NI Yan-bing

Journal Article