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Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1050-y

Abstract:

Three acid-producing strains were isolated and identified.

The isolated bacteria accelerated the anaerobic

Keywords： Anaerobic digestion     Waste activated sludge     Acid-producing bacteria     Bacillus coagulans    

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

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 acid resistance of granular sludge and methanogenic bacteria and their metabolizing activity wereApparently, these were not the advisable pH levels that common methanogenic bacteria could accept.The methanogenic bacteria of the system, viz.Methanosarcina barkeri, had some acid resistance and could still degrade methanol at pH 5.0.If the methanogenic bacteria were trained further, their acid resistance would be improved somewhat.

Keywords： pH     Granular     upflow anaerobic     advisable pH     methanogenic    

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Flow cytometric assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleicacid stains and 5-cyano-2,3-ditolyltetrazolium chloride

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0884-4

Abstract: Flow cytometry based on nucleic acid stains and CTC was established and optimized.The metabolic activity of bacteria persisted after the cytomembranewas damaged.The metabolic activity of the bacteria persisted after the cytomembranewas damaged as detected usingThe metabolic activity of the bacteria decreased with increasing UV dosage, and MP-UV was a stronger

Keywords： Flow cytometry     Escherichia coli     Staphylococcusaureus     UV     CTC     SYTO 9    

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The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1356-4

Abstract:

•Bacterial concentrations from eight stages were 104–105copies/m3.

Keywords： Size distribution     Airborne bacteria     Biological diversity     Human pathogenic bacteria     Composting plants    

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Electroactivity of the magnetotactic bacteria AMB-1 and MSR-1

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1808-3

Abstract:

● The first study of electrochemically active magnetotactic bacteria

Keywords： Magnetotactic bacteria     Magnetospirillum magneticum     Magnetospirillum gryphiswaldense    

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Mutagenesis and selective breeding of a high producing

Tian WANG, Shiru JIA, Zhilei TAN, Yujie DAI, Shuai SONG, Guoliang WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 179-183 doi: 10.1007/s11705-012-1273-6

Abstract: -Poly- -lysine ( -PL) is an -lysine linear homopolymer, which is produced by bacteria belonging to theHowever, the production of -PL by the wild bacteria strain is very low, which limits its utilizationIn most bacteria including the genus, -lysine is a precursor of -PL and is biosynthesized by theFinally, one -PL-producing strain, L9, was selected.

Keywords： ?-poly-L-lysine     plasma     AHV     Streptomyces diastatochromogenes     fermentation    

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Production of rhamnolipids-producing enzymes of

Kata Kiss,Wei Ting Ng,Qingxin Li

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1,   Pages 133-138 doi: 10.1007/s11705-017-1637-z

Abstract: Rhamnolipids are a class of biosurfactants that have a great potential to be used in industries. Five proteins/enzymes, namely RhlA, RhlB, RhlC, RhlG and RhlI, are critical for the production of rhamnolipids in . Four of the 5 proteins except RhlC were successfully over-expressed in and three of them (RhlA, RhlB and RhlI) were purified and obtained in milligram quantities. The purified proteins were shown to be folded in solution. Homology models were built for RhlA, RhlB and RhlI. These results lay a basis for further structural and functional characterization of these proteins to favor the construction of super strains for rhamnolipids production.

Keywords： rhamnolipids     Pseudomonas     RhlA     RhlB     RhlI     protein folding    

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Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue

Zhongguo LI,Wenyi YUAN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 731-737 doi: 10.1007/s11783-014-0687-4

Abstract: The acid concentration of acidic water was adjusted according to the content of impurity metals in sodium-jarositedecompose sodium-jarosite to provide enough ferric ions for synthesizing PFS, the concentrated sulfuric acid

Keywords： sodium-jarosite residue     utilization     poly-ferric sulfate (PFS)    

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Organic and inorganic phosphorus uptake by bacteria in a plug-flow microcosm

Jinbo ZHAO, Xuehua LIU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 173-184 doi: 10.1007/s11783-013-0494-3

Abstract: The aim of this study was to investigate the uptake of two organic phosphorus compounds (phytic acidand D-glucose-6-phosphate) by freshwater bacteria.One experiment suggested that phytic acid (refractory) could displace phosphate from the biofilm surfaceexperiment showed that D-glucose-6-phosphate (labile) could be hydrolysed and utilized easily by the bacteriaThe results also suggested that bacteria might break down the C-P bonds to utilize the carbon.

Keywords： organic phosphorus     bacteria     uptake    

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Visible light induces bacteria to produce superoxide for manganese oxidation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1619-y

Abstract:

● Term of manganese-oxidizing microorganisms should be reconsidered.

Keywords： Mn(II) oxidation     Manganese-oxidizing bacteria     Reactive oxygen species     Mn(III/IV) oxides    

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Synergistic degradation of pyrene and volatilization of arsenic by cocultures of bacteria and a fungus

Shuang LIU, Yanwei HOU, Guoxin SUN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 191-199 doi: 10.1007/s11783-012-0470-3

Abstract: The combination of two bacteria ( sp. PY1 and sp. PY2) and a fungus ( sp.

Keywords： pyrene     arsenic     bioremediation     bacteria     fungus    

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SIMULATION OF O-BLOWN CO-GASIFICATION OF WOOD CHIP AND POTATO PEEL FOR PRODUCING SYNGAS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 448-457 doi: 10.15302/J-FASE-2023490

Abstract:

● Low-value biowaste including wood chip and potato peel was valorized to syngas.

Keywords： Aspen Plus     co-gasification     potato peel     syngas     simulation     waste reduction     wood chip    

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Nitrifying and denitrifying bacteria in aerobic granules formed in sequencing batch airlift reactors

WANG Fang, YANG Fenglin, QI Aijiu

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 184-189 doi: 10.1007/s11783-007-0032-2

Abstract: The purpose of this study was to investigate nitrifying bacteria and denitrifying bacteria isolated fromBacteria were isolated and determined from aerobic granules using selected media.The growth properties and morphology of bacteria colonies were observed by controlling aerobic or anaerobicIt was found that bacteria in aerobic granules were diverse and some of them were facultative aerobesThe diversity of bacteria in aerobic granules was a premise of simultaneous nitrification and denitrification
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Catalytic fast pyrolysis of Kraft lignin with HZSM-5 zeolite for producing aromatic hydrocarbons

Xiangyu LI, Lu SU, Yujue WANG, Yanqing YU, Chengwen WANG, Xiaoliang LI, Zhihua WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 295-303 doi: 10.1007/s11783-012-0410-2

Abstract: Catalytic fast pyrolysis (CFP) of Kraft lignins with HZSM-5 zeolite for producing aromatics was investigated

Keywords： lignin     catalytic fast pyrolysis     HZSM-5     zeolite     aromatic hydrocarbon    

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Title Author Date Type Operation

Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Journal Article

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

ZHOU Xuefei, REN Nanqi

Journal Article

Flow cytometric assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleicacid stains and 5-cyano-2,3-ditolyltetrazolium chloride

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Journal Article

The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Journal Article

Electroactivity of the magnetotactic bacteria AMB-1 and MSR-1

Journal Article

Mutagenesis and selective breeding of a high producing

Tian WANG, Shiru JIA, Zhilei TAN, Yujie DAI, Shuai SONG, Guoliang WANG

Journal Article

Production of rhamnolipids-producing enzymes of

Kata Kiss,Wei Ting Ng,Qingxin Li

Journal Article

Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue

Zhongguo LI,Wenyi YUAN

Journal Article

Zhang Jiachao: Development and Utilization of Tropical Probiotic Lactic acid Bacteria Resources (2022

27 Feb 2023

Conference Videos

Organic and inorganic phosphorus uptake by bacteria in a plug-flow microcosm

Jinbo ZHAO, Xuehua LIU

Journal Article

Visible light induces bacteria to produce superoxide for manganese oxidation

Journal Article

Synergistic degradation of pyrene and volatilization of arsenic by cocultures of bacteria and a fungus

Shuang LIU, Yanwei HOU, Guoxin SUN

Journal Article

SIMULATION OF O-BLOWN CO-GASIFICATION OF WOOD CHIP AND POTATO PEEL FOR PRODUCING SYNGAS

Journal Article

Nitrifying and denitrifying bacteria in aerobic granules formed in sequencing batch airlift reactors

WANG Fang, YANG Fenglin, QI Aijiu

Journal Article

Catalytic fast pyrolysis of Kraft lignin with HZSM-5 zeolite for producing aromatic hydrocarbons

Xiangyu LI, Lu SU, Yujue WANG, Yanqing YU, Chengwen WANG, Xiaoliang LI, Zhihua WANG

Journal Article