Water, Environment & Energy

December 2020

PYRO ASIA 2020 - International Symposium on Analytical & Applied Pyrolysis
Date: 11 December 2020 (Friday)
Time: 12.00 pm (Thailand) , ~360 Min
Speaker:
Language: English
Registration Fee: www.pyroasia.org
To Register: Registration Form
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Description: Please see details at www.pyroasia.org

PYRO ASIA 2020 - International Symposium on Analytical & Applied Pyrolysis
Date: 12 December 2020 (Saturday)
Time: 12.00 pm (Thailand) , ~360 Min
Speaker:
Language: English
Registration Fee: www.pyroasia.org
To Register: Registration Form
[More]
Description: Please see detailed technical program at www.pyroasia.org.

PYRO ASIA 2020 - International Symposium on Analytical & Applied Pyrolysis
Date: 13 December 2020 (Sunday)
Time: 12.00 pm (Thailand) , ~360 Min
Speaker:
Language: English
Registration Fee: www.pyroasia.org
To Register: Registration Form
[More]
Description: Please see detailed technical program at www.pyroasia.org.

Performance Evaluation of Membrane-Aerated Biofilm Reactor for Acetonitrile Wastewater Treatment
Date: 16 December 2020 (Wednesday)
Time: 5.00 pm (Thailand) , ~60 Min
Speaker: Patthranit Kunlasubpreedee
Language: English
Registration Fee: FREE
To Register: Registration Form
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Description: The membrane-aerated biofilm reactor (MABR) is considered a promising alternative owing to its obvious advantages. Because of the bubbleless aeration mechanism in the MABR, volatile organic compounds contaminated in the wastewater are retained in the MABR without stripping to the atmosphere. The removal of both organic carbon and nitrogen compounds can be achieved in a single reactor. Because oxygen and the substrate in the MABR are supplied to the biofilm on opposite sides, the aerobic zone for the growth of nitrifiers and anoxic zone for the growth of denitrifiers can occur simultaneously. The MABR can be operated at higher biomass concentration with a more compact plant area in comparison with a conventional activated sludge process. This study provides a better understanding of how the MABR can be employed for a treatment plant where industrial wastewater is required to be treated for xenobiotic compounds with smaller reactor volume without releasing any air pollutants into the atmosphere.

January 2021

Green Oxidation Processes for Wastewater, Biomass and Industrial Applications
Date: 11 January 2021 (Monday)
Time: 3.00 pm (Thailand) , ~60 Min
Speaker: Dr. Kun-Lin Yang
Language: English
Registration Fee: FREE
To Register: Registration Form
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Description: Hydrogen peroxide (H2O2) is a powerful oxidizer and is considered “green” because it only releases water and oxygen after decomposition. Therefore, hydrogen peroxide becomes increasingly important in wastewater treatments and manufacturing processes. However, reaction rate with H2O2 under ambient conditions is too slow. To accelerate the reaction, ferrous ions can be used as a catalyst to break down H2O2 into hydroxyl free radicals (ˑOH) under a narrow pH range (2.8-3.2). Unlike H2O2, hydroxyl radical react with organic molecules quickly and nonspecifically under ambient conditions. The so-called Fenton’s reaction is widely used for wastewater treatments, but it has many issues such as excessive sludge formation. Recently, we developed a number of enzyme mimetic catalysts which can be used to replace ferrous ions for advanced oxidation processes. The catalysts are metal-oligopeptide complexes, similar to the structure of biological enzymes, but they can be tailored-made and produced in a large scale. The metal center of the catalysts can be oxidized by H2O2 or hypochlorite readily to form high-valence metal species, which then oxidize aromatic or unsaturated compounds with high specificity and molecular efficiency. Under neutral or alkaline pH, they also catalyze the polymerization of aromatic compounds such as phenol. These reactions are highly specific as they do not involve free radical reactions as classic Fenton reactions. They can work at an extremely low concentration even at 0.01 parts-per-million (ppm) level over a wide pH range. Interestingly, the catalysts also show an inverse dosage dependent behavior, i.e. the reaction rate increases with decreasing H2O2 concentration. At present, the novel catalysts have found many industrial applications in wastewater treatment, bleaching edible oil and pretreatment of biomass, due to their unique reaction mechanisms and green nature. Several trials and pilot-scale studies of the above applications will be discussed in the presentation. Due to growing awareness of environmental protection and sustainability, we foresee the numbers of potential applications for the enzyme mimetic catalysts will increase steadily in the near future.
Speaker: Dr Kun-Lin Yang is an associate professor in the Department of Chemical and Biomolecular Engineering at the National University of Singapore (NUS). Before joining NUS, he was a post-doctoral researcher in the Chemical and Biomolecular Department at the University of Wisconsin - Madison. He received his PhD degree from Georgia Institute of Technology in 2002. His present research interests include green catalysts, microfluidics, sensors and wastewater treatments.

February 2021

From Biowastes to Bioplastics
Date: 03 February 2021 (Wednesday)
Time: 3.00 pm (MEST) (Germany) , ~60 Min
Speaker: Dr.Carlos Bengoechea Ruiz
Language: English
Registration Fee: FREE
To Register: Registration Form
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Description: Several factors propel the transition from a fossil based to a bio-based economy, such as the depletion of non-renewable resources or the increasing need to address environmental issues. The development of bio-products from agricultural residues has a great potential, although significant improvements are still required. Almost all raw materials used for the production of plastics could be obtained from natural resources from a chemical and biothechnological point of view. The production of bio-products is not an easy task, as not all the processes are commercially feasible and/or efficient, and products obtained often possess insufficient purity or a high price. Billions of tons of biomass waste and food industry residues and by-products, also known as biowastes, are generated worldwide, which could be considered as one of the most abundant, cheap, and renewable resources available. This webinar would focus on highlighting latest research on the area of bioplastic materials, especially those rich in protein, which could be used for several applications.

August 2021

Polymers for gas separation membranes: where are we now?
Date: 12 August 2021 (Thursday)
Time: 3.00 pm (MEST) (Germany) , ~60 Min
Speaker: Dr. Maria Giovanna Buonomenna
Language: English
Registration Fee: FREE
To Register: Registration Form
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Description: The key parameters for gas separations employing membranes are the permeability of a specific component of the gas mixture and the selectivity. Membrane gas separation employing polymeric membranes has been commercially used since the 1970s generating a significant amount of academic and industrial research activity. It was recognized that an empirical upper limit (the well-known “upper bound”) for the combined selectivity and permeability exists [1]: the selectivity generally decreases with increasing permeability of the more permeable gas component. Molecular sieve membranes with well-defined uniform pore structure would be considered to be the true upper bound limit for polymeric membranes. Recently this upper bound has been updated for relevant gas separations by microporous rigid polymeric membranes . In this Webinar, an analysis of recent findings for industrially relevant gas pairs, such as CO2/CH4, CO2/N2 is given.
Speaker: M. G. Buonomenna (Salerno, 1975), graduated in Chemistry in 1998 (110/110), obtained the license and status of Professional Chemist in 1999 (100/100). She was awarded a Research Fellowship in Membrane Materials and Operations in 1999 from the Institute on Membrane and Technology (ITM) (former IRMERC)-National Research Council of Italy (CNR) and a PhD in Chemical Engineering and Materials in 2005 from the University of Calabria. In February 2014 and for the second time in October 2018 she obtained the qualification of Associate Professor in Chemical Fundamentals of Technologies from the Italian Ministry for Instruction, University and Research (MIUR). Her research activities relate to membrane science and technology for sustainable processes. She is author of more than 60 scientific papers in peer-reviewed international journals, 1 book, more than 90 contributions published in conferences proceedings, 10 chapters of scientific books, editor of 1 book on advanced membrane materials, guest-editor of 9 Special Issues in peer-reviewed international journals, and member of the Editorial Boards for a number of international peer reviewed journals. She has been an Invited Speaker in numerous international conferences. She serves as reviewer for several international scientific journals and as Expert Evaluator for International Funding Agencies.