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A syntrophic propionate-oxidizing microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane production and COD removal

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: Hydrogen-producing acetogensis was a rate-limiting step in methane fermentation.because it is the most difficult to be anaerobically oxidized among the volatile fatty acids produced by acetogenesisHydrogen-producing acetogenesis appeared to be a rate-limiting step in methane fermentation, and theenhancement of hydrogen-producing acetogens in the anaerobic wastewater treatment process had improvednot only the hydrogen-producing acetogenesis but also the acidogenesis and methanogenesis.

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

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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.

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

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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: Finally, 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: Sodium-jarosite is a type of industrial waste that results from hydrometallurgy and inorganic chemical production. The iron content of jarosite residue may be utilized to produce theoretically the ferrous materials. The difficulty in production of high quality poly-ferric sulfate (PFS) is how to remove impurities contained in jarosite residue. This paper proposes a novel method for disposing sodium-jarosite which can be used to synthesize PFS, a very important reagent for treating waste water. The method consists of a two-step leaching experimental procedures. The first step, pre-leaching process, is to remove impurity metals by strictly controlling the leaching conditions. The acid concentration of acidic water was adjusted according to the content of impurity metals in sodium-jarosite and the leaching temperature was controlled at 25°C. The second step is to decompose sodium-jarosite to provide enough ferric ions for synthesizing PFS, the concentrated sulfuric acid consumption was 0.8 mL·g sodium-jarosite and the leaching temperature was above 60°C. In the experiment, decomposing iron from sulfate sodium-jarosite can take the place of ferric martials for synthesizing PFS. Results show that the PFS synthesized from sodium-jarosite had a high poly-iron complex Fe (SO ) (OH) ·20H O. Further, the PFS product’s specifications satisfied the national standard of China.

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

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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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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 investigatedreaction conditions, the aromatic yields were 2.0 wt.% and 5.2 wt.% for the two lignins that had effective hydrogen

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

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Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 96-106 doi: 10.1007/s11465-018-0498-6

Abstract:

A three-stage molding process involving microcellular injection molding with core retraction and an “out-of-mold” expansion was developed to manufacture thermoplastic polyurethane into lightweight foams of varying local densities, microstructures, and mechanical properties in the same microcellular injection molded part. Two stages of cavity expansion through sequential core retractions and a third expansion in a separate mold at an elevated temperature were carried out. The densities varied from 0.25 to 0.42 g/cm3 (77% to 62% weight reduction). The mechanical properties varied as well. Cyclic compressive strengths and hysteresis loss ratios, together with the microstructures, were characterized and reported.

Keywords： thermoplastic polyurethane     microcellular injection molding     cavity expansion     compressive strength     hysteresis loss ratio    

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Characterization of NDM-1-producing carbapenemase in

Rongmin ZHANG,Yang WANG,Zhihai LIU,Jiyun LI,Wenjuan YIN,Lei LEI,Congming WU,Jianzhong SHEN

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3,   Pages 223-229 doi: 10.15302/J-FASE-2015065

Abstract: These results suggest the possibility of human-to-food animal transfer of -producing , highlighting

Keywords： carbapenemase     NDM-1     ISAba125     Enterobacteriaceae     food safety    

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A systemic review of hydrogen supply chain in energy transition

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 102-122 doi: 10.1007/s11708-023-0861-0

Abstract: Targeting the net-zero emission (NZE) by 2050, the hydrogen industry is drastically developing in recentHowever, the technologies of hydrogen upstream production, midstream transportation and storage, andIn this paper, the development of hydrogen industry from the production, transportation and storage,In the upstream, blue hydrogen is dominating the current hydrogen supply, and an implementation of carbonIn the downstream utilization, blue hydrogen will be used in producing value-added chemicals in the short-term

Keywords： hydrogen production     hydrogen transportation and storage     hydrogen economy     carbon capture and sequestration    

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Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 34-63 doi: 10.1007/s11705-021-2050-1

Abstract: Moreover, we also introduced some probes for hydrogen polysulfides.

Keywords： hydrogen sulfide     fluorescent probe     reducibility     nucleophilicity     copper sulfide precipitate     hydrogen    

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Production of hydrogen from fossil fuel: A review

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 585-610 doi: 10.1007/s11708-023-0886-4

Abstract: Production of hydrogen, one of the most promising alternative clean fuels, through catalytic conversionCatalytic conversion of natural gas into hydrogen and carbon is thermodynamically favorable under atmosphericHowever, using noble metals as a catalyst is costly for hydrogen production, thus mandating non-nobleThis paper reviews the various hydrogen production methods from fossil fuels through pyrolysis, partialoxidation, autothermal, and steam reforming, emphasizing the catalytic production of hydrogen via steam

Keywords： methane     catalytic conversion     natural gas     hydrogen production     CCUS    

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Causes and Control Strategies for Environmental Problems of Agricultural Producing Areas in Southern

Caihong Huang, Beidou Xi, Zhurui Tang, Wenchao Yuan

Strategic Study of CAE 2018, Volume 20, Issue 5,   Pages 52-56 doi: 10.15302/J-SSCAE-2018.05.008

Abstract: development of Chinese economy, a large number of pollutants have entered the environment of agricultural producingThis paper focuses on main agricultural producing areas along the Yangtze River and systematically discussessignificance in promoting the scientific nature of environmental pollution control in the agricultural producing

Keywords： agricultural producing areas in Southern China     environmental pollution     prevention and control strategies    

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Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 667-677 doi: 10.1007/s11708-021-0767-7

Abstract: process large breadth of potential synthetic diversity are the representative of photocatalysts for hydrogenshowed a superior photocatalytic activity and a robust stability under visible-light irradiation, for hydrogenFinally, challenges and outlook on using organic polymer dots-based photocatalysts from hydrogen production

Keywords： polymer dots (Pdots)     photocatalysis     hydrogen production    

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NICE’s Indirect Coal-to-Liquid Process for Producing Clean Transportation Fuels Using Fischer-Tropsch

Omar M. Basha,Li Weng,Zhuo-wu Men,Wayne Xu,Badie I. Morsi

Frontiers of Engineering Management 2016, Volume 3, Issue 4,   Pages 362-376 doi: 10.15302/J-FEM-2016049

Abstract: that our joint research effort has laid the foundation for the design of a commercial-scale SBCR for producing

Keywords： Fischer-Tropsch synthesis     tail gas recycle     simulations     process design    

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Title Author Date Type Operation

A syntrophic propionate-oxidizing microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane production and COD removal

Chong Liu, Jianzheng Li, Shuo Wang, Loring Nies

Journal Article

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

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

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

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

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

Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Journal Article

Characterization of NDM-1-producing carbapenemase in

Rongmin ZHANG,Yang WANG,Zhihai LIU,Jiyun LI,Wenjuan YIN,Lei LEI,Congming WU,Jianzhong SHEN

Journal Article

A systemic review of hydrogen supply chain in energy transition

Journal Article

Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Journal Article

Production of hydrogen from fossil fuel: A review

Journal Article

Causes and Control Strategies for Environmental Problems of Agricultural Producing Areas in Southern

Caihong Huang, Beidou Xi, Zhurui Tang, Wenchao Yuan

Journal Article

Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Journal Article

NICE’s Indirect Coal-to-Liquid Process for Producing Clean Transportation Fuels Using Fischer-Tropsch

Omar M. Basha,Li Weng,Zhuo-wu Men,Wayne Xu,Badie I. Morsi

Journal Article