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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.Three fluorescence peaks were found in the excitation-emission matrix (EEM) fluorescence spectra of EPSconstants (lg K ) followed the order of peak A>peak B>peak C, implying that the humic-like substances in EPSThe binding site number, , in EPS-Cu(II) complexes for peaks A, B, and C was less than 1.

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

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Effect of 2-butenal manufacture wastewater to methanogenic activity and microbial community

Guangqing Song, Hongbo Xi, Xiumei Sun, Yudong Song, Yuexi Zhou

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1056-5

Abstract:

The molecular structure of EPS has changed when

Keywords： 2-butenal manufacture wastewater     Methanogenic activity     Specific methanogenic activity (SMA)     Extracellularpolymeric substance (EPS)     Microbial community    

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Characterization of the dissolved organic matter in sewage effluent of sequence batch reactor: the impact of carbon source

Jin GUO, Feng SHENG, Jianhua GUO, Xiong YANG, Mintao MA, Yongzhen PENG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 280-287 doi: 10.1007/s11783-011-0336-0

Abstract: that more biopolymers (polysaccharides or proteins) and humic-like substances were presented in the extracellularpolymeric substance (EPS) extracted from the SBR fed with sodium acetate or glucose, while the EPS from

Keywords： effluent organic matter (EfOM)     extracellular polymeric substance (EPS)     molecular weight distribution    

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Chemical additives affect sulfate reducing bacteria biofilm properties adsorbed on stainless steel 316L surface in circulating cooling water system

Yu Qi,Jin Li,Rui Liang,Sitong Ji,Jianxiang Li,Meng Liu

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0917-7

Abstract: There are more polysaccharides than proteins in EPS on SS316L surface.NaClO cuts down more protein, while 1227 reduced more polysaccharides in EPS.The results show that the extracellular polymeric substance (EPS) in biofilm attached on the SS316L surface

Keywords： Sulfate reducing bacteria (SRB)     Chemical additives     Biofilm     Extracellular polymeric substance (EPS)     Microbe    

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A new polystyrene-latex-based and EPS-containing synthetic sludge

Ling-Ling Wang, Shan Chen, Hai-Ting Zheng, Guo-Qing Sheng, Zhi-Jun Wang, Wen-Wei Li, Han-Qing Yu

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 131-139 doi: 10.1007/s11783-011-0390-7

Abstract: high-strength synthetic sludge was prepared with functional polystyrene latex particles as the framework and extracellularpolymeric substances (EPS) to modify its surface.Compared with other three functional polystyrene latex microspheres, the synthetic sludge prepared with EPS-modified

Keywords： activated sludge     extracellular polymeric substances (EPS)     flocculation     polystyrene latex particles     synthetic    

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Tetra-detector size exclusion chromatography characterization of molecular and solution properties of soluble microbial polysaccharides from an anaerobic membrane bioreactor

Qingbin Guo,Sheng Chang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0922-x

Abstract: Tetra-detector HPSEC was evaluated for the SMP characterization Molecular weight and intrinsic viscosity of the SMP were characterized Specific viscosity and osmotic pressure of the SMP solution were studied Approach to analyze the concentration polarization of the SMP was discussed Characterization of the molecular properties of soluble microbial products (SMP) is critical for understanding the membrane filtration and fouling mechanisms in anaerobic and aerobic membrane bioreactors (AnMBR & MBR). In this study, the distributions of the absolute molecular weight and intrinsic viscosity of SMP polysaccharides from an AnMBR were effectively determined by a high performance size exclusion chromatography (HPSEC) that was coupled with the refractive index (RI), diode array UV (DAUV), right and low angle light scattering (LS), and viscometer (Vis) detectors. Based on the tetra-detector HPSEC determined absolute molecular weights and intrinsic viscosity, a universal calibration relationship for the SMP polysaccharides was developed and the molecular conformations, average molecular weights, and hydrodynamic sizes of the SMP polysaccharides were also explored. Two factors which can be derived from the tetra-detector HPSEC analysis were proposed for the characterization of the viscous and osmotic pressure properties of the SMP polysaccharides. In addition, it was also extrapolated how to analyze the resistance characteristics of the concentration polarization layers formed in membrane filtration based on the molecular properties determined by the tetra-detector HPSEC analysis.

Keywords： Soluble microbial product     Extracellular polymeric substance     Membrane bioreactor     Membrane fouling     Molecular    

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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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Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1707-z

Abstract:

● EPS immobilizes U(VI) via adsorption, bioreduction and desorption

Keywords： Adsorption     Bioreduction     Desorption     Kinetics     Isotherm     Uranium    

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Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 753-760 doi: 10.1007/s11783-011-0368-5

Abstract: significantly changed the sludge settlability and the main mechanism was release of the loosely bounded extracellularpolymeric substances.

Keywords： activated sludge     sonication     settlability     dry weight     extracellular polymeric substances     polyelectrolyte    

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Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD, nitrogen, and phosphorus reduction

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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Effects of Al

Lanhe Zhang, Jing Zheng, Jingbo Guo, Xiaohui Guan, Suiyi Zhu, Yanping Jia, Jian Zhang, Xiaoyu Zhang, Haifeng Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 6, doi: 10.1007/s11783-019-1169-5

Abstract: EPS, PS and PN concentrations increased with the addition of Al3+.the effects of Al3+ on pollutant removal, sludge flocculation and the composition and structure of extracellularpolymeric substances (EPS) were investigated under anaerobic, anoxic and oxic conditions.The addition of Al3+ promoted the secretion of EPS.Tryptophan-like fluorescence peaks were detected in each EPS layer in the absence of Al3+.

Keywords： Extracellular polymeric substances     Activated sludge     Aluminum ion     A2O     Wastewater    

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Decellularized extracellular matrix mediates tissue construction and regeneration

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 56-82 doi: 10.1007/s11684-021-0900-3

Abstract: Contributing to organ formation and tissue regeneration, extracellular matrix (ECM) constituents provide

Keywords： decellularized extracellular matrix     3D culture     organoids     tissue repair    

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The Following-observing Method for Substance Flow Analysis

Lu Zhongwu

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 18-25

Abstract: The fundamental argument set forth in the paper is that flow is the common feature of fluid flow and substanceIt is emphasized that the following-observing method is applicable not only for studying steady substanceflow (constant output of product), but also for unsteady substance flow (increasing or decreasing outputThe following-observing model of substance flow was explained by using iron flow diagram in the lifeIntroducing the degree of unsteady-state, a set of basic equations for calculating the indexes of substance

Keywords： methods of substance flow analysis     following-observing method for substance flow analysis     basic equationsfor substance flow analysis     degree of unsteadiness of substance flow    

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Influence of aeration intensity on the performance of A/O-type sequencing batch MBR system treating azo dye wastewater

Xinhua WANG, Jingmei LI, Xiufen LI, Guocheng DU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 615-622 doi: 10.1007/s11783-011-0362-y

Abstract: aeration intensities and the impact of the aeration intensity on effluent quantity, sludge properties, extracellularpolymeric substances (EPS) amount generated as well as the change of permeation flux were examined.In the meantime, the sludge relative hydrophobicity, the bound EPS, soluble EPS and EPS amounts contained

Keywords： batch membrane bioreactor     azo dye     aeration intensity     extracellular polymeric substances     sludge properties    

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Effects of a structurally related substance on the crystallization of paracetamol

Ali SALEEMI, I.I. ONYEMELUKWE, Zoltan NAGY

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 79-87 doi: 10.1007/s11705-013-1308-7

Abstract: Paracetamol (PCM) was crystallized from an isopropanol (IPA) solution containing various small amounts of metacetamol as an additive. The effect on the nucleation kinetics was studied by measuring the induction time to nucleation and the metastable zone width using focused beam reflectance measurements (FBRM) and attenuated total reflectance (ATR-UV/Vis) spectroscopy. Both the induction time and the metastable zone width were expressed as functions of the additive concentration. Small amounts of metacetamol (1–4 mol-%) were found to cause significant inhibition to the nucleation by extending both the induction time and the metastable zone width. A progressive change in the morphology of the paracetamol crystals from tabular to columnar habit was observed with increasing metacetamol concentration. The solvent also had a significant effect on the size of the paracetamol crystals as smaller crystals were obtained in IPA than in aqueous solution. The dissolution rate of paracetamol was improved by the incorporation of metacetamol with 4 mol-% having the most effect. A supersaturation control (SSC) approach was implemented for the PCM-IPA system with and without metacetamol in an attempt to control and obtain larger metacetamol-doped paracetamol crystals.

Keywords： acetaminophen     metacetamol     crystallization     metastable zone width     induction time     supersaturation control    

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Title Author Date Type Operation

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

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

Journal Article

Effect of 2-butenal manufacture wastewater to methanogenic activity and microbial community

Guangqing Song, Hongbo Xi, Xiumei Sun, Yudong Song, Yuexi Zhou

Journal Article

Characterization of the dissolved organic matter in sewage effluent of sequence batch reactor: the impact of carbon source

Jin GUO, Feng SHENG, Jianhua GUO, Xiong YANG, Mintao MA, Yongzhen PENG

Journal Article

Chemical additives affect sulfate reducing bacteria biofilm properties adsorbed on stainless steel 316L surface in circulating cooling water system

Yu Qi,Jin Li,Rui Liang,Sitong Ji,Jianxiang Li,Meng Liu

Journal Article

A new polystyrene-latex-based and EPS-containing synthetic sludge

Ling-Ling Wang, Shan Chen, Hai-Ting Zheng, Guo-Qing Sheng, Zhi-Jun Wang, Wen-Wei Li, Han-Qing Yu

Journal Article

Tetra-detector size exclusion chromatography characterization of molecular and solution properties of soluble microbial polysaccharides from an anaerobic membrane bioreactor

Qingbin Guo,Sheng Chang

Journal Article

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

Journal Article

Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

Journal Article

Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Journal Article

Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD, nitrogen, and phosphorus reduction

Journal Article

Effects of Al

Lanhe Zhang, Jing Zheng, Jingbo Guo, Xiaohui Guan, Suiyi Zhu, Yanping Jia, Jian Zhang, Xiaoyu Zhang, Haifeng Zhang

Journal Article

Decellularized extracellular matrix mediates tissue construction and regeneration

Journal Article

The Following-observing Method for Substance Flow Analysis

Lu Zhongwu

Journal Article

Influence of aeration intensity on the performance of A/O-type sequencing batch MBR system treating azo dye wastewater

Xinhua WANG, Jingmei LI, Xiufen LI, Guocheng DU

Journal Article

Effects of a structurally related substance on the crystallization of paracetamol

Ali SALEEMI, I.I. ONYEMELUKWE, Zoltan NAGY

Journal Article