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Effect of pH on biologic degradation of

Hongjing LI, Mengli HAO, Jingxian LIU, Chen CHEN, Zhengqiu FAN, Xiangrong WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 224-230 doi: 10.1007/s11783-011-0314-6

Abstract: In this paper, the effect of pH on biological degradation of by alga-lysing bacteria in laboratory-scaleUnder pH 6.5, 7.5, and 8.5 conditions, the removal rates of were respectively 75.9%, 83.6%, and 78.3%It was observed that the sequence of the removal efficiencies of algae, and organic matter were pH7.5>pH 8.5>pH 6.5.

Keywords： pH     biological degradation     alga-lysing bacteria     sequencing batch biofilm reactor (SBBR)     16S rRNA        

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Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effectof pH at ambient temperature

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 623-632 doi: 10.1007/s11783-011-0334-2

Abstract: Effect of pH ranging from 4.0 to 11.0 on co-fermentation of waste activated sludge (WAS) with food wasteThe SCFAs production at pH 6.0, 7.0, 8.0, and 9.0 and fermentation time of 4 d was respectively 5022.7, 6540.5, 8236.6, and 7911.7 mg COD·L , whereas in the blank tests (no pH adjustment, pH 8.0 (blank testwaste than the sole WAS indicated a synergistic effect existing in fermentation system with WAS andof the mixture of WAS and food waste at different pH conditions.

Keywords： waste activated sludge (WAS)     food waste     co-fermentation     short-chain fatty acids (SCFAs)     pH     synergisticeffect    

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The effect of pH, solid content, water chemistry and ore mineralogy on the galvanic interactions between

Asghar Azizi, Seid Ziaoddin Shafaei, Mohammad Noaparast, Mohammad Karamoozian

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 464-471 doi: 10.1007/s11705-013-1356-z

Abstract: The role of pH, solid content, water chemistry and ore mineralogy on the galvanic interactions betweenThe galvanic current density decreased as the solution pH and percent solids increased.

Keywords： steel ball     galvanic interaction     pyrite     chalcopyrite     polarization curves    

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4-Amino-1,8-naphthalimide based fluorescent photoinduced electron transfer (PET) pH sensors as liposomalcellular imaging agents: The effect of substituent patterns on PET directional quenching

Miguel Martínez-Calvo, Sandra A. Bright, Emma B. Veale, Adam F. Henwood, D. Clive Williams, Thorfinnur Gunnlaugsson

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 61-75 doi: 10.1007/s11705-019-1862-8

Abstract: These four compounds all gave rise to emission bands centred at 535 nm, which were found to be highly pHThe luminescent pH dependence for these probes was found to be highly dependent on the substitution onIn the case of sensor the presence of the 4-amino-aniline dominated the pH dependent quenching.Nevertheless, at higher pH, PET quenching was also found to occur from the polyamine site.Similar trends and pH fluorescence dependences were also seen for and .

Keywords： sensors     pH     photoinduced electron transfer     cellular imaging     confocal microscopy    

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Effect of protein on PVDF ultrafiltration membrane fouling behavior under different pH conditions: interface

Xudong WANG,Miao ZHOU,Xiaorong MENG,Lei WANG,Danxi HUANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0855-9

Abstract: pH values of the BSA solution significantly impact the process of membrane fouling.bovine serum albumin (BSA) on different hydrophilic PVDF ultrafiltration (UF) membranes over a range of pHAt the same pH condition, the PVDF/PVA membrane–BSA adhesion force was smaller than that of PVDF/PVPa dominant role in the interfacial free energy of membrane–BSA and BSA–BSA that can be affected by pHFor the same membrane, the pH values of a BSA solution can have a significant impact on the process of

Keywords： PVDF membrane     Membrane fouling     Adhesion force     Protein     Interfacial free energy    

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Effect of environment change on the strength of cement/lime treated clays

Takenori HINO, Rui JIA, Seiji SUEYOSHI, Tri HARIANTO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 153-165 doi: 10.1007/s11709-012-0153-y

Abstract: The mechanism of the ground environment change and its effect on the strength of cement/lime treatedcement and lime in different curing environments was investigated in the laboratory for studying the effectmethod is due to 1) the ground environment change due to the secondary oxidation which results in low pHWhen examining the long-term strength for preventing strength degradation, the effect of environmentalThe importance of measuring pH and oxidation-reduction potential (ORP) of the ground for cement/lime

Keywords： soil solidification     ground environment     strength deterioration     pH     oxidation-reduction potential (ORP)    

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Co-present Pb(II) accelerates the oxidation of organic contaminants by permanganate: Role of Pb(III)

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1530-y

Abstract:

• Simultaneous removal of organic contaminants and Pb(II) was achieved by Mn(VII).

Keywords： Permanganate     Pb(II) oxidation     MnO2     pH effect    

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Carbon dots-based fluorescence sensor for two-photon imaging of pH in diabetic mice

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 298-306 doi: 10.1007/s11705-022-2212-9

Abstract: Herein, a reversible pH fluorescent sensor was developed using caffeic acid as the precursor by one-stepThe carbon dots-based sensor (CA-CDs) exhibited pH-dependent increase in fluorescence intensity and showedlinear relationship in the range of pH 6.60 and 8.00.Notably, the fluorescence sensor has a reversible response to pH change.The present study provides a simple analytical method for pH detection suitable for in vivo.

Keywords： carbon dots     two-photon imaging     pH     diabetic mice    

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NO oxidation over Co-La catalysts and NO

Tiejun Zhang,Jian Li,Hong He,Qianqian Song,Quanming Liang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0906-x

Abstract: The Co-La catalyst (pH= 1) exhibited maximum NO conversion of 43% at 180°C.prepared using the wet impregnation method and the synthesis of catalysts were modified by controlling pHAmong the catalysts, the one synthesized at pH= 1 exhibited the maximum NO conversion of 43% at 180°C

Keywords： NO catalytic oxidation     pH effect     Low temperature     Sulfur dioxide     High space velocity     SCR    

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Effect of succinic acid deamidation-induced modification on wheat gluten

Lan LIAO, Mouming ZHAO, Haifeng ZHAO, Jiaoyan REN, Chun CUI, Xiao HU,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 386-392 doi: 10.1007/s11705-009-0250-1

Abstract: The effect of succinic acid deamidation-induced modification on wheat gluten was investigated in theThe isoelectric point of succinic acid deamidated wheat gluten was shifted to a basic pH and existedin the broad pH regions.

Keywords： pH     isoelectric     conformation     deamidation-induced modification     molecular flexibility    

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Sorption of tetracycline to sediments and soils: assessing the roles of pH, the presence of cadmium and

Guixiang ZHANG, Xitao LIU, Ke SUN, Ye ZHAO, Chunye LIN

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 421-429 doi: 10.1007/s11783-010-0265-3

Abstract: tetracycline (TC, H L) on sediments and soils in the presence and absence of cadmium (Cd), as affected by pHLower pH facilitated TC sorption through a cation exchange mechanism, which also took place at pH valuesWhen pH was above 7, however, ligand-promoted dissolution of TC might occur due to TC weakening the Al-Oincreased TC sorption on both sediments and soils, which resulted from the decrease of equilibrium solution pH

Keywords： sorption     tetracycline (TC)     pH     cadmium (Cd)     antibiotic    

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A Cu-modified active carbon fiber significantly promoted HS and PH simultaneous removal at a low reaction

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1425-3

Abstract:

• Cu0.15-ACF performs the best for H2S and PH<

Keywords： ACF     H2S     PH3     Cu     Low temperature     Simultaneous removal    

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Decomposition of perfluorooctanoic acid by microwave-activated persulfate: Effects of temperature, pH

Yuchi LEE, Shanglien LO, Jeff KUO, Chinghong HSIEH

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 17-25 doi: 10.1007/s11783-011-0371-x

Abstract: The objectives of this study were to investigate the effects of pH (pH= 2.5, 6.6, 8.8, and 10.5), chlorideMaximum PFOA degradation occurred at pH 2.5, while little or no degradation at pH 10.5.Lowering system pH resulted in an increase in PFOA degradation rate.Both high pH and chloride concentrations would result in more scavenging of sulfate free radicals and

Keywords： microwave     perfluorooctanoic acid     pH     persulfate     chloride ions     perfluorocarboxylic acids    

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Tuning the electronic structure of NiCoP arrays through V doping for pH-universal hydrogen evolution

Yu Lin, Jinlei Wang, Duanlin Cao, Yaqiong Gong

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1134-1146 doi: 10.1007/s11705-020-2014-x

Abstract: , high-performance, and stable electrocatalysts for the hydrogen evolution reaction (HER) over wide pHdenoted as V -NiCoP/CFP) were constructed by doping V modulation on NiCoP nanosheets on CFP and used for pH-universalinspiration to rationally enhance or design new-type nonprecious metal-based, highly efficient, and pH-universal

Keywords： hydrogen evolution reaction     transition metal phosphides     pH-universal     vanadium doping     carbon fiber paper    

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Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration methanol wastewater

ZHOU Xuefei, REN Nanqi

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 53-56 doi: 10.1007/s11783-007-0010-8

Abstract: The results show that the pH of the first UASB changed from 4.9 to 5.8 and 5.5 to 6.2 for the secondApparently, these were not the advisable pH levels that common methanogenic bacteria could accept.Methanosarcina barkeri, had some acid resistance and could still degrade methanol at pH 5.0.bacteria within its body against the impact of the acidic environment and make them degrade methanol at pH

Keywords： pH     Granular     upflow anaerobic     advisable pH     methanogenic    

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Title Author Date Type Operation

Effect of pH on biologic degradation of

Hongjing LI, Mengli HAO, Jingxian LIU, Chen CHEN, Zhengqiu FAN, Xiangrong WANG

Journal Article

Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effectof pH at ambient temperature

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

Journal Article

The effect of pH, solid content, water chemistry and ore mineralogy on the galvanic interactions between

Asghar Azizi, Seid Ziaoddin Shafaei, Mohammad Noaparast, Mohammad Karamoozian

Journal Article

4-Amino-1,8-naphthalimide based fluorescent photoinduced electron transfer (PET) pH sensors as liposomalcellular imaging agents: The effect of substituent patterns on PET directional quenching

Miguel Martínez-Calvo, Sandra A. Bright, Emma B. Veale, Adam F. Henwood, D. Clive Williams, Thorfinnur Gunnlaugsson

Journal Article

Effect of protein on PVDF ultrafiltration membrane fouling behavior under different pH conditions: interface

Xudong WANG,Miao ZHOU,Xiaorong MENG,Lei WANG,Danxi HUANG

Journal Article

Effect of environment change on the strength of cement/lime treated clays

Takenori HINO, Rui JIA, Seiji SUEYOSHI, Tri HARIANTO

Journal Article

Co-present Pb(II) accelerates the oxidation of organic contaminants by permanganate: Role of Pb(III)

Journal Article

Carbon dots-based fluorescence sensor for two-photon imaging of pH in diabetic mice

Journal Article

NO oxidation over Co-La catalysts and NO

Tiejun Zhang,Jian Li,Hong He,Qianqian Song,Quanming Liang

Journal Article

Effect of succinic acid deamidation-induced modification on wheat gluten

Lan LIAO, Mouming ZHAO, Haifeng ZHAO, Jiaoyan REN, Chun CUI, Xiao HU,

Journal Article

Sorption of tetracycline to sediments and soils: assessing the roles of pH, the presence of cadmium and

Guixiang ZHANG, Xitao LIU, Ke SUN, Ye ZHAO, Chunye LIN

Journal Article

A Cu-modified active carbon fiber significantly promoted HS and PH simultaneous removal at a low reaction

Journal Article

Decomposition of perfluorooctanoic acid by microwave-activated persulfate: Effects of temperature, pH

Yuchi LEE, Shanglien LO, Jeff KUO, Chinghong HSIEH

Journal Article

Tuning the electronic structure of NiCoP arrays through V doping for pH-universal hydrogen evolution

Yu Lin, Jinlei Wang, Duanlin Cao, Yaqiong Gong

Journal Article

Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration methanol wastewater

ZHOU Xuefei, REN Nanqi

Journal Article