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MBBR followed by microfiltration and reverse osmosis as a compact alternative for advanced treatment of a pesticide‐producing industry wastewater towards reuse

21.05.2016 | Sandra M. S. Cao, Marcia Dezotti, João P. Bassin, The Canadian Journal of Chemical Engineering, 2016

Abstract The treatment of a chemical industry wastewater with the goal of reuse was evaluated in a three‐step process. First, the industrial waste stream underwent biological treatment in a two‐stage moving‐bed biofilm reactor (MBBR) system, which allowed achieving average effluent chemical ...

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Synthesis of No‐glycerol biodiesel through transesterification catalyzed by CaO from different precursors

21.05.2016 | Ying Tang, Tianlan Yan, Bo Shen, Huafeng Li, Ayodeji Jeje, The Canadian Journal of Chemical Engineering, 2016

Abstract Three component mixtures of canola oil, dimethyl carbonate, and methanol, catalyzed by suspended calcium oxide (CaO) particles, produced a biodiesel that required little further processing. Only the catalyst particles needed to be recovered and re‐used. Substrates for the CaO were ...

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Applicability of bacterial biocementation in sustainable construction materials

20.05.2016 | Navdeep Kaur Dhami, Abhijit Mukherjee, M. Sudhakara Reddy, Asia-Pacific Journal of Chemical Engineering, 2016

Abstract Urease production of calcifying bacterium, Bacillus megaterium SS3 was enhanced by using response surface methodology (RSM) in current study. The preliminary screening by Plackett–Burman's design revealed that among the tested factors, glucose, urea and NaHCO3 significantly (p −1 in ...

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A comparative study on layered cobalt hydroxides in water oxidation

20.05.2016 | Xue Leng, Kuang‐Hsu Wu, Qingcong Zeng, Ian R. Gentle, Da‐Wei Wang, Asia-Pacific Journal of Chemical Engineering, 2016

ABSTRACT Oxygen evolution reaction has attracted extensive attention in energy conversion and storage technology (e. g. water splitting and rechargeable metal–air batteries). Its sluggish kinetics demands effective electrocatalysts to minimize the reaction barrier. Transition metal ...

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Preparation of high toughness and high transparency polylactide blends resin based on multiarmed polycaprolactone‐block‐poly(l‐lactide)

19.05.2016 | Xinchao Bian, Bao Zhang, Bin Sun, Zhiqiang Sun, Sheng Xiang, Gao Li, Xuesi Chen, Polymer Engineering and Science, 2016

Modification of poly(l‐lactide) (PLLA) via blending with two or more polymers is one of the effective approaches used to overcome the brittleness of PLLA, which often requires the addition of a compatibilizer and generate opaque materials. To solve this problem, multiarmed ...

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Preparation of liquid crystal 4'‐allyloxy‐biphenyl‐4‐ol functionalized MWCNTs and their application on improving mechanical and thermal properties of silicon resin

19.05.2016 | Weijian Xiong, Xue Gao, Dayong Gui, Xueqing Cai, Guiming Tan, Jianhong Liu, Polymer Engineering and Science, 2016

A liquid crystalline molecule, 4'‐allyloxy‐biphenyl‐4‐ol (AOBPO), was used to functionalize carbon nanotubers (CNTs) via physical means and chemical means, respectively. The physically functionalized CNTs (AOBPO‐CNTs) and chemically functionalized CNTs (AOBPO‐O‐CNTs) were characterized by ...

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General model for comparative tensile mechanical properties of composites fabricated from fly ash and virgin/recycled high‐density polyethylene

19.05.2016 | Imrana I. Kabir, Charles C. Sorrell, Mykanth R. Mada, Sagar T. Cholake, Sri Bandyopadhyay, Polymer Engineering and Science, 2016

The present work on the mechanical properties of ≤10 wt% fly ash additions in 2.5 wt% increments to recycled high‐density polyethylene (RHDPE) synthesizes experimental data from three similar published reports. The present work shows, as a function of increasing fly ash addition level, maxima at ...

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Rheological and thermal properties of novel surfactant‐polymer systems for EOR applications

19.05.2016 | Izhar A. Malik, Usamah A. Al‐Mubaiyedh, Abdullah S. Sultan, Muhammad Shahzad Kamal, Ibnelwaleed A. Hussein, The Canadian Journal of Chemical Engineering, 2016

ABSTRACT In this work, two surfactant‐polymer (SP) systems were evaluated for enhanced oil recovery applications. The first SP system contained partially hydrolyzed polyacrylamide and alkyl polyethylene glycol ether‐based non‐ionic surfactant. The second SP system consisted of the same ...

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Rapid degradation of contaminated soil with 2‐methylpropane‐2‐thiol by H2O2/KMnO4/NaClO system: process modeling and optimization

18.05.2016 | Pejman Roohi, Esmaeil Fatehifar, Reza Alizadeh, Asia-Pacific Journal of Chemical Engineering, 2016

Abstract 2‐Methylpropane‐2‐thiol is a hazardous material, and remediation of soil polluted by this contaminant with a fast method is important to study. In this study, H2O2/KMnO4/NaClO system as a combined system is investigated for 2‐methylpropane‐2‐thiol oxidation because of especial ...

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Simulation of high‐temperature steam‐only gasification of woody biomass with dry‐sorption CO2 capture

18.05.2016 | Ehsan Mostafavi, Jennifer H. Pauls, C. Jim Lim, Nader Mahinpey, The Canadian Journal of Chemical Engineering, 2016

ABSTRACT Over the last few decades, research on the abatement of carbon dioxide (CO2) gas has gained momentum, due to its increasing atmospheric levels. This study investigated high‐temperature steam‐only gasification of woody biomass for the production of high‐purity hydrogen integrated with ...

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