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Implications of static

John NSOR-ATINDANA, Maoshen CHEN, Liu WEI, Khin Myat NOE, Yue LI, Fang ZHONG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 3,   Pages 340-350 doi: 10.15302/J-FASE-2018209

Abstract: To test the efficacy of these different fibers on starch digestion, static in vitro digestionIndeed, many efforts have been committed to the development of various static in vitro protocolsfor starch digestion.This review presents the current status and development of digestion techniques for simulating digestionThis summary can benefit investigators in developing static in vitro digestion models designed

Keywords： dietary fiber     in vitro digestion     nutrition     simulation     starch    

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Sulfate digestion process for high purity TiO

T. A. LASHEEN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 155-160 doi: 10.1007/s11705-009-0005-z

Abstract: A titania slag product of Rosetta ilmenite assaying 72% TiO is treated by the sulfate process option of the pigmentary TiO manufacture. The relevant factors of acid concentration, particle size, slag/acid ratio besides the reaction temperature, and time have been studied. After dissolving the cured mass in dilute acid and clarification, the obtained solution was subjected to hydrolysis of its titanium content. The final product was bleached under reducing conditions to redissolve the residual coloring impurities before being dewatered and calcinated. The obtained results indicated that a leaching efficiency of about 92% was realized due to the presence of some refractory components in the working slag material, namely, rutile and magnesium iron titanate. The obtained white pigment assay attained up to 99.85% TiO , while the analyzed impurities involve 77 ppm Mn and only 14 and 7 ppm of total iron and V, respectively.

Keywords： titania     slag     sulfate process     pigment    

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Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1108-1116 doi: 10.1007/s11783-015-0806-x

Abstract: High-solids anaerobic digestion of sewage sludge was a promising process, but high solid concentrationinfluencing mechanism was systematically analyzed in this study through a series of static anaerobic digestionThe results showed that TS 6% was the boundary between low-solids and high-solids anaerobic digestionThe performance of anaerobic digestion was directly determined by the efficiency of mass transfer, andConsequently, the deterioration of high-solids anaerobic digestion was related to the blocked mass transfer

Keywords： anaerobic digestion     methane     sewage sludge     volatile fatty acids     free ammonia    

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A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 272-279 doi: 10.1007/s11783-010-0234-x

Abstract: A hybrid membrane process for simultaneous sludge thickening and digestion (MSTD) was studied.The thickening and digestion effects in the MSTD were further analyzed based on a mass balance analysis

Keywords： membrane filtration     sludge digestion     sludge thickening     waste activated sludge    

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Mesophilic and thermophilic anaerobic digestion of swine manure with sulfamethoxazole and norfloxacin

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1342-x

Abstract:

• SMX addition had negative effect on acetoclastic methanogens in mesophilic AD.

Keywords： Pig manure     Antibiotics     Anaerobic digestion     Resistance genes     Microbial community    

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Antimicrobial activity of topical agents against Propionibacterium acnes: an in vitro study of clinical

Ying Ma,Nanxue Zhang,Shi Wu,Haihui Huang,Yanpei Cao

Frontiers of Medicine 2016, Volume 10, Issue 4,   Pages 517-521 doi: 10.1007/s11684-016-0480-9

Abstract:

This study aimed to compare the antimicrobial activities of topical agents against Propionibacterium acnes isolated from patients admitted to a hospital in Shanghai, China. The minimal inhibitory concentrations of the cultured P. acnes were determined in accordance with the Clinical and Laboratory Standards Institute. Susceptibilities to clindamycin and erythromycin were compared in terms of gender, age, disease duration, previous treatment, and disease severity. A total of 69 P. acnes strains were isolated from 98 patients (70.41%). The susceptibility to triple antibiotic ointment (neomycin/bacitracin/polymyxin B) and bacitracin was 100%. The susceptibility to fusidic acid was 92.7%. The resistance rates to neomycin sulfate, erythromycin, and clindamycin were 11.7%, 49.3%, and 33.4%, respectively. The high resistance rate to clindamycin and erythromycin was significantly affected by gender, previous treatment, and disease severity rather than by age and disease duration. Topical antibiotics should not be used separately for long-term therapy to avoid multiresistance. The use of topical antibiotics should be determined by clinicians on the basis of clinical conditions.

Keywords： antimicrobial susceptibility/resistance     Propionibacterium acnes     topical antibiotics     in vitro study    

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Degradation of polyacrylamide (PAM) and methane production by mesophilic and thermophilic anaerobic digestion

Mona Akbar, Muhammad Farooq Saleem Khan, Ling Qian, Hui Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1277-2

Abstract: Furthermore, it degrades slowly and can deteriorate methane yield during anaerobic digestion (AD).

Keywords： Polyacrylamide (PAM) degradation     Acrylamide (AM)     Mesophilic anaerobic digestion     Thermophilic anaerobicdigestion     Methane production    

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In vitro agonistic and antagonistic endocrine disrupting effects of organic extracts from waste water

Kaifeng RAO, Na LI, Mei MA, Zijian WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 69-78 doi: 10.1007/s11783-013-0502-7

Abstract: In the present study, a battery of in vitro yeast bioassays and a cell bioassay, including antagonistic

Keywords： waste water     in vitro     recombinant yeast assay     ethoxyresorufin-O-deethylase (EROD)     receptor     endocrine    

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and a prognostic indicator in human breast cancer and promotes breast cancer cell proliferation in vitro

Lan Wang,Jueheng Wu,Jie Yuan,Xun Zhu,Hongmei Wu,Mengfeng Li

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 41-51 doi: 10.1007/s11684-016-0429-z

Abstract: siRNA silencing of MID2 expression significantly reduced MCF-7 and MDA-MB-231 cell proliferation in vitro

Keywords： breast cancer     MID2     proliferation     overall survival     xenograft    

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IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 635-644 doi: 10.15302/J-FASE -2020343

Abstract:

The antifungal effectiveness of extracts of five medicinal plant species was determined. The inhibitory activity of extracts of Eucalyptus tereticornis, Xanthium sibiricum, Artemisia argyi, Tupistra chinensis and Pyrola calliantha were evaluated against the mycelial growth of the plant pathogenic fungi Aspergillus niger, Botrytis cinerea, Penicillium digitatum, P. expansum, P. italicumand Rhizopus stolonifer. All plant extracts were prepared at 60°C using solvents (either water, 50% ethanol (v/v), 95% ethanol (v/v), ethyl acetate or petroleum ether). Fungicidal effects of all plants tested were confirmed. Different extracts from the same plant species gave different degrees of inhibition. All aqueous extracts had weak or no activity on all fungi tested. Ethyl acetate and 95% ethanol extracts from T. chinensis rhizomes gave greater inhibition and a broader spectrum inhibition than the other extracts. T. chinensis may have potential as a new natural fungicide and may be used for the preservation of agricultural and forestry products such as fruits and vegetables.

 

Keywords： Botrytis cinerea / food preservation / plant diseases / plant pathogenic fungi / Tupistra chinensis    

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High-solid anaerobic digestion of sewage sludge: achievements and perspectives

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1364-4

Abstract:

• High-solid anaerobic digestion (HS-AD) of sewage sludge (SS) is overviewed

Keywords： High-solid effect     Anaerobic fermentation     Methane production     Biodegradability     Sludge treatment    

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Comparison of different valent iron on anaerobic sludge digestion: Focusing on oxidation reduction potential

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1514-3

Abstract:

• ORP value from −278.71 to −379.80 mV showed indiscernible effects on methane yield.

Keywords： Enhanced anaerobic sludge digestion     Different iron valence     Oxidation reduction potential     Dissolved    

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ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 424-436 doi: 10.15302/J-FASE-2023506

Abstract:

● Integration of alkaline pretreatment and air mixing for co-digestion

Keywords： sodium hydroxide     air injection     cumulative methane yield     kinetic modeling analysis     digestate    

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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:

The isolated bacteria accelerated the anaerobic digestion

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

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Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1736-7

Abstract:

● The PCDD/F distribution patterns of the FW-AD process were investigated.

Keywords： Biological treatment     MSW classification     Mass balance     Solid digestate    

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Title Author Date Type Operation

Implications of static

John NSOR-ATINDANA, Maoshen CHEN, Liu WEI, Khin Myat NOE, Yue LI, Fang ZHONG

Journal Article

Sulfate digestion process for high purity TiO

T. A. LASHEEN

Journal Article

Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Journal Article

A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Journal Article

Mesophilic and thermophilic anaerobic digestion of swine manure with sulfamethoxazole and norfloxacin

Journal Article

Antimicrobial activity of topical agents against Propionibacterium acnes: an in vitro study of clinical

Ying Ma,Nanxue Zhang,Shi Wu,Haihui Huang,Yanpei Cao

Journal Article

Degradation of polyacrylamide (PAM) and methane production by mesophilic and thermophilic anaerobic digestion

Mona Akbar, Muhammad Farooq Saleem Khan, Ling Qian, Hui Wang

Journal Article

In vitro agonistic and antagonistic endocrine disrupting effects of organic extracts from waste water

Kaifeng RAO, Na LI, Mei MA, Zijian WANG

Journal Article

and a prognostic indicator in human breast cancer and promotes breast cancer cell proliferation in vitro

Lan Wang,Jueheng Wu,Jie Yuan,Xun Zhu,Hongmei Wu,Mengfeng Li

Journal Article

IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI

Journal Article

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

Journal Article

Comparison of different valent iron on anaerobic sludge digestion: Focusing on oxidation reduction potential

Journal Article

ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

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

Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

Journal Article