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Corrigendum to "Current challenges of hydrothermal treated wastewater (HTWW) for environmental applications and their perspectives: A review" [Environ. Res. 212 Part D (2022) 113532]

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Environmental research 2024年第PT 3期252卷 119005页

作者： Muhammad Usman Zhijian Shi Nalok Dutta Muhammad Awais Ashraf Bushra Ishfaq Mohamed Gamal El-Din Department of Civil and Environmental Engineering University of Alberta Edmonton AB T6G 2W2 Canada Bioproducts Sciences and Engineering Laboratory (BSEL) Washington State University Tri-Cities Richland WA 99354 United States Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3) Department of Environmental Science and Engineering Fudan University Shanghai 200433 China Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes Shanghai 200438 China. Electronic address: musman4@ualberta.ca. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes Shanghai 200438 China. Bioproducts Sciences and Engineering Laboratory (BSEL) Washington State University Tri-Cities Richland WA 99354 United States. State Key Laboratory of Multiphase Complex Systems CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China. Food Technology Section Post-harvest Research Center Ayub Agricultural Research Institute Faisalabad Pakistan. Department of Civil and Environmental Engineering University of Alberta Edmonton AB T6G 2W2 Canada. Electronic address: mgamalel-din@ualberta.ca.

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Rheological Modeling of the Effects of Adulteration on Nigerian Honey

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Open Journal of Fluid Dynamics 2018年第3期8卷 249-263页

作者： John Uju Nwalor Faith Uchenna Babalola Vincent Okechukwu Anidiobu Department of Chemical Engineering University of Lagos Lagos Nigeria Food Process Engineering Section Department of Food Technology The Federal Polytechnic Ado-Ekiti Nigeria

Honey was serially diluted with different percentages of glucose, fructose and water and each was analysed rheologically at room temperature of 27°C. Pure honey exhibits thixotropic time-dependent rheological behaviour, the behaviour of glucose and fructose solutions in water (a Newtonian solvent) tends towards near Newtonian. The rheological profiles of pure and adulterated honey samples were determined using RV DV-III Ultra Programmable Rheometer at low rates of share. A Structural Kinetic Model was developed which provided good correlations with the rheological data. The new model was used to classify samples using their average molecular weights as one of the distinguishing parameters. Also the order of the kinetics in the new model suggests the number of active components in the “honey” undergoing deformation as 3. Carreau-Yasuda model was also improved upon to provide an independent assessment of average molecular weight of samples.

关键词： Honey Rheology Structural Kinetic Model Amended Carreau-Yasuda Model Honey Adulteration

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Effect of pectin-CMC-based coating on texture of hot air-dried honeydew

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Materials Today: Proceedings 2020年 31卷 A170-A174页

作者： M.F. Raup M.A. Abdul Manap M.R. Faridatul Ain S.F. Ibrahim M. Abdul Rahman Section of Food Engineering Technology Universiti Kuala Lumpur Malaysian Institute of Chemical & Bioengineering Technology 78000 Alor Gajah Melaka Malaysia School of Chemical and Process Engineering Faculty of Engineering and Physical Sciences University of Leeds West Yorkshire LS2 9JT United Kingdom

The optimization of temperature, immersion time and coating treatment, during hot air drying of honeydew, was investigated by the response surface methodology. The results show that the coated sample with immersion time of 35 min at drying temperature 55 °C was determined as the optimum condition for this study. The honeydew was coated with pectin-CMC-based edible coating (except non-coated sample) and was then hot-air dried. The data from the chromameter for colour analysis showed that the decreasing value of ΔE as the immersion time and temperature increase and non-coated samples also shows higher value than coated samples. The results of the texture (skin strength) analysis showed that the longer immersion time resulted in lower skin strength. However, the coated samples had better structural integrity and higher moisture content, but the plasticizing effect from the coating result in the lower skin strength. Highest moisture content recorded was from coated sample with 60 min immersion time at 58 °C. Pectin-CMC-based edible coating acts as a barrier where the sample moisture was trapped; longer the immersion time and higher barrier produced. Coated sample showed lower rehydration ratio than non-coated sample. The pectin-CMC-based edible coating solutions produced a sticky layer on the surface of samples, which is solidified during air-drying and this layer can potentially reduce water absorption into the porous structure in honeydew texture.

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Recovery of organic acids from fermentation broth using nanofiltration technologies: A review

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Journal of Physical Science 2017年 28卷 85-109页

作者： Zaman, Nadiah Khairul Law, Jeng Yih Chai, Pui Vun Rohani, Rosiah Mohammad, Abdul Wahab Department of Chemical and Process Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia UKM Bangi Selangor43600 Malaysia Section of Chemical Engineering Technology Universiti Kuala Lumpur Malaysian Institute of Chemical and Bioengineering Technology Alor Gajah Melaka78000 Malaysia

Organic acids are important targeted chemicals in the renewable biorefinery industry. They are widely used in various industries due to their variety of functionalities and less toxic properties. Conventionally, organic acids are produced through chemical processing using fossil raw materials. However, the biological production pathway has gained significant attention in recent years due to the growing environmental concern and movement towards green technology. To date, a variety of high-value organic acids such as succinic, lactic, butyric, acetic and fumaric acids have been produced via microbial fermentation. The primary challenge in the fermentative production of organic acids is the downstream recovery of the main products from the broth solution. Integration of membrane technology with other separation technologies in the downstream processing is deemed as a great opportunity for this purpose, for which membrane-based nanofiltration is seen as the potential technology. Nanofiltration offers several advantages such as great flexibility in the scale of production, high degree of separation and selectivity, and can be easily integrated with other separation units. This paper reviews the recovery of organic acids from fermentation broth using nanofiltration technologies, of which five types of organic acids are discussed in-depth. In particular, valuable findings concerning the effect of membrane properties, type of membrane used, and the effect of processing parameters on the organic acids recovery are highlighted in this paper. © Penerbit Universiti Sains Malaysia, 2017.

关键词： Nanofiltration

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Synthesis and Characterization of Silica Aerogel from Rice Husk with Ambient Pressure Drying Method

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Journal of Physics: Conference Series 2020年第1期1535卷

作者： Nor Fadilah Mohamad Noor Hidayu Abdul Rani Omar Syah Jehan Elham Siti Hajar Anaziah Muhamad Siti Afifah Muda Yasmin Basear Muhammad Kamarulariffin Mohammed Faisal Faculty of Chemical Engineering Universiti Teknologi MARA Johor Branch Pasir Gudang Campus Jalan Purnama Bandar Seri Alam 81750 Masai Johor. Process Engineering Technology Section Uniceristy Kuala Lumpur Malaysian Institute of Chemical & Bioengineering Technology (UniKL MICET) Lot 1988 Bandar Vendor Taboh Naning 78000 Alor Gajah Melaka Malaysia.

Rice husk has become global concern due to the environmental problem since it has been dumped and open burned that contributed to the emissions of carbon dioxide to the atmosphere. Therefore, utilization of rice husk to other useable product such as silica aerogel for adsorption has been study recently due to the silica content in rice husk is about 60% and this material is sustainable and cost effective. Silica aerogel was prepared from rice husk ash and dried by using ambient pressure drying method with addition of tetraethyl orthosilicate (TEOS) due to its capability to prevent the gel from crack and increase the porosity of gel to increase the capacity of adsorption process. The silica aerogel was further characterized by using Fourier Transform Infrared spectroscopy (FTIR), Elemental Anaylzer (EA) and Scanning Electron Microscopic (SEM). The results show that the silica aerogel was successfully synthesized using rice husk ash. The FTIR studies reveal that silica aerogel produced consist of amorphous silica with Si-O-Si bonding and stretching's. From EA analysis, the carbon in the rice husk decreasing when turn into silica aerogel due to the burning of carbon content in the preparation of silica. The SEM studies confirm that the silica aerogel has a porous structure and has ability to for the application adsorption process such as carbon dioxide adsorption, methylene blue adsorption and others application.

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Fuel cell electric vehicle to grid & H2: Balancing national electricity, heating & transport systems a scenario analysis for Germany in the year 2050

Fuel cell electric vehicle to grid & H2: Balancing national ...

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2017 IEEE Green Energy and Smart Systems Conference, IGESSC 2017

作者： Oldenbroek, Vincent Wijtzes, Siebren Van Wijk, Ad Blok, Kornelis Energy Technology Section Dept. of Process and Energy Faculty of Mechanical Maritime and Materials Engineering Delft University of Technology Delft Netherlands Energy and Industry Section Dept. Engineering Systems and Services Faculty of Technology Policy and Management Delft University of Technology Delft Netherlands

ISBN: (纸本)9781538620274

In a 2050 fully renewable national electricity, heating and road transport system primary energy supply comes from non-dispatchable power generation such as solar and wind energy. Both negative and positive dispatchable balancing power plants need to balance the system. This work investigates whether parked and grid connected (Vehicle-to-Grid) Fuel Cell Electric Vehicles (FCEVs) fueled with pure hydrogen can replace positive dispatchable balancing power plants. These power plants, often gas turbine based, are likely to operate at low capacity factors in future. A simulation for a 2050 scenario is based on German 2015 renewable electricity data and assumes a passenger car mix of 40% FCEVs and 60% Battery Electric Vehicles. On average 0.9 million FCEVs with Vehicle-to-Grid (V2G) output of 10 kWe would be required during evening and night time and approximately 6 million during the annual peak shortage hour to balance the system at all times. These numbers represent respectively 2% and 14% of the total 2015 German passenger car stock and have the potential to replace all positive dispatchable power plants in future. © 2017 IEEE.

关键词： Vehicle-to-grid

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3D bioprinting – Flow cytometry as analytical strategy for 3D cell structures

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Bioprinting 2018年 11卷

作者： Gretzinger, Sarah Beckert, Nicole Gleadall, Andrew Lee-Thedieck, Cornelia Hubbuch, Jürgen Institute of Functional Interfaces (IFG) Karlsruhe Institute of Technology (KIT) Eggenstein-Leopoldshafen Germany Institute of Engineering in Life Sciences Section IV: Biomolecular Separation Engineering Karlsruhe Institute of Technology (KIT) Karlsruhe Germany Manufacturing and Process Technologies Faculty of Engineering University of Nottingham University Park Nottingham NG7 2RD United Kingdom

The importance of 3D printing technologies increased significantly over the recent years. They are considered to have a huge impact in regenerative medicine and tissue engineering, since 3D bioprinting enables the production of cell-laden 3D scaffolds. Transition from academic research to pharmaceutical industry or clinical applications, however, is highly dependent on developing a robust and well-known process, while maintaining critical cell characteristics. Hence, a directed and systematic approach to 3D bioprinting process development is required, which also allows for the monitoring of these cell characteristics. This work presents the development of a flow cytometry-based analytical strategy as a tool for 3D bioprinting research. The development was based on a model process using a commercially available alginate-based bioink, the β-cell line INS-1E, and direct dispensing as 3D bioprinting method. We demonstrated that this set-up enabled viability and proliferation analysis. Additionally, use of an automated sampler facilitated high-throughput screenings. Finally, we showed that each process step, e.g. suspension of cells in bioink or 3D printing, cross-linking of the alginate scaffold after printing, has a crucial impact on INS-1E viability. This reflects the importance of process optimization in 3D bioprinting and the usefulness of the flow cytometry-based analytical strategy described here. The presented strategy has a great potential as a cell characterisation tool for 3D bioprinting and may contribute to a more directed process development. © 2018 Elsevier B.V.

关键词： 3D bioprinting Cell proliferation Cell viability Flow cytometry process development

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Calculation method between heat treatment simulation and computer fluid dynamics

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Materials Performance and Characterization 2018年第2期8卷

作者： Sugimoto, Tsuyoshi Taniguchi, Kouichi Yamada, Shigenori Matsuno, Toshiyuki Sonobe, Masaru Ju, Dong-Ying Department of Material Engineering Nissan Motor Co. Ltd. 560-2 Okatsukoku Atsugi Kanagawa243-0192 Japan Department of Engineering Saitama Institute of Technology Fuseiji 1690 Fukaya Saitama369-0293 Japan Parts Process Engineering Department Machining Process Engineering Section No. 2 JATCO Ltd. 700-1 Imaizumi Fuji Shizuoka417-8585 Japan Environmental Material and Manufacturing Engineering Development Department Suzuki Motor Corp. 300 Takatsuka-cho Minami-ku Hamamatsu Shizuoka432-8611 Japan Fujikoshi Co. Ltd. 176 Okake Namerikawa Toyama936-0802 Japan

For vehicle drivetrain system parts such as gears, case hardening heat treatment with carburizing is well used to improve wear and rolling contact fatigue properties. However, distortion would occur during heat treatment processes, which may be a problem in improving the precision of the gear shape. Predicting distortion behavior accurately by heat treatment simulation method could help us achieve a good heat treatment quality and parts' shape accuracy. In this article, heat treatment simulation that is the predicting method from cooling situation to heat treatment distortion and computer fluid dynamics that is the predicting method from flow condition to cooling phenomena are combined. This combined method can estimate heat treatment quality on mass production treatment, especially in stable flow condition or some cooling conditions. However, especially for a continuously variable transmission pulley quenched in high-speed flow oil condition, the accuracy of heat treatment simulation is lower than other conditions. We estimated this to be the effect of turbulence generated in the flow. © 2018 by ASTM International.

关键词： Cooling

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Separation of succinate from organic acid salts using nanofiltration membranes

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Chemical engineering Transactions 2017年 56卷 1705-1710页

作者： Law, Jeng Yih Mohammad, Abdul Wahab Section of Chemical Engineering Technology Malaysian Institute of Chemical and Bioengineering Technology Universiti Kuala Lumpur Alor Gajah Melaka78000 Malaysia Department of Chemical and Process Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia UKM Bangi43600 Malaysia

ISBN: (纸本)9788895608471

The fermentative production of bio-based succinic acid is often accompanied by organic acid byproducts. In this study, the separation of succinate from organic acid salts (acetate and formate) using pressure-driven nanofiltration (NF) was studied. The performances of three nanofiltration membranes were compared and discussed. The influence of feed ratio on the succinate recovery was not significant given that succinate rejections of greater than 81.9 % were obtained in all cases. A comparison between monovalent rejection and divalent rejection suggests that the separation of multi-salt solution was influenced by the Donnan-steric effects. Taking into account the permeation fluxes and organic acid salt retentions, the NFW membrane manufactured by Synder Filtration was considered the most appropriate membrane for the separation of divalent succinate from other organic acid salts. This study strongly supports the use of NF technology for the downstream recovery of high valuable products. Copyright © 2017, AIDIC Servizi S.r.l..

关键词： Nanofiltration

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Correction to: Detection of Candidatus Neoehrlichia mikurensis in Norway up to the northern limit of Ixodes ricinus distribution using a novel real time PCR test targeting the groEL gene

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BMC microbiology 2020年第1期20卷 9页

作者： Andrew Jenkins Cecilie Raasok Benedikte N Pedersen Kristine Jensen Åshild Andreassen Arnulf Soleng Kristin Skarsfjord Edgar Heidi Heggen Lindstedt Vivian Kjelland Snorre Stuen Dag Hvidsten Bjørn-Erik Kristiansen Department of Natural Science and Environmental Health University of South-Eastern Norway Bø Norway. andrew.jenkins@usn.no. Department of Natural Science and Environmental Health University of South-Eastern Norway Bø Norway. Present address: Nittedal Municipal Water and Drainage Authority Nittedal Norway. Present address: Telemark Trust Hospital Section for Pathology Skien Norway. Department of Virology Norwegian Institute of Public Health Oslo Norway. Department of Pest Control Norwegian Institute of Public Health Oslo Norway. Department of Engineering and Science University of Agder Kristiansand Norway. Sørlandet Trust Hospital Research Unit Kristiansand Norway. Department of Production Animal Clinical Sciences Norwegian University of Life Sciences Sandnes Norway. Department of Microbiology and Infection Control University Hospital of North Norway Tromsø Norway. Department of Process Energy and Environmental Technology University of South-Eastern Norway Porsgrunn Norway.

After publication of our article [1] it came to our notice that the source of the sequence for the control plasmid, pNeo (Materials and methods: Controls) was incorrectly stated as AB094461. The correct accession numb...

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