Scientific Program

Sessions:

Waste Management & Recycling

Abstract

In developed countries, an average of one used tire per inhabitant is generated every year. This produces a large amount of materials after their end of life which must be carefully managed. Since landfilling and stockpiling is no longer an option due to safety hazards and environmental concerns, solutions must be found to reuse this high amount of post-consumer materials. Based on the concepts of sustainable development, burning for energy recovery is also limited. This is why recycling is proposed to get added-value products and increase the economics. In general the tire structure is decomposed into its main components: steel, fibers (RTF) and rubber (GTR). Then, applications are proposed to reuse the different fractions. In particular, the rubber can be blended with thermoplastic resins to produce thermoplastic elastomers (TPE), while the fibers can used to produce composite materials based on different matrices. In our work, processing conditions (pressure, temperature, speed) and formulation (component and concentration) are optimized based on different polymer matrices to improve the mechanical properties of different compounds. Our results show that ground tire rubber can be very effective to improve the toughness and impact strength of polymers, while recycled tire fiber can improve the strength and stiffness of polymer composites. Nevertheless, care must be made as contamination is always a concern. By reusing a large amount of waste tires, this substantially reduces the materials accumulating and generates new compounds for similar and/or different applications. Overall, wastes are converted into raw materials producing added-value products and economic wealth.

Biography

Denis Rodrigue obtained a B.Sc. (1991) and a Ph.D. (1996) in chemical engineering from Université de Sherbrooke (Sherbrooke, Canada). Then he moved to Université Laval (Quebec City, Canada) where he is now full professor. His main research areas are in the characterization and the modelling of the morphological / mechanical / thermal / rheological properties of foams and composites based on thermoplastics and elastomers. He is currently the co-editor of one journal (Current Applied Polymer Science) and a member of the editorial board of three journals (Cellular Polymers, Journal of Cellular Plastics, and Elastomery).

Speaker
Denis Rodrigue Université Laval

Abstract

Nowadays, generating different types of solid wastes and manifestation of their associated social, economic and environmental inconsistencies create numerous complications for urban service management in regard to the collection, transportation, processing and disposal of such wastes. An optimal planning in collecting, management, and disposal of urban waste are one of the most important strategies that can yield multiple improvements in both total cost and health. Due to the fact that 60 to 80 percent of costs of solid wastes management are related to collecting and transporting them, the evaluation of underlying collection and transportation system plays a significant role in reducing and solving the problems of urban service management. The wastes should be collected, transported and disposed in the least time, through the best method, and directly from household areas to disposal sites. Based on the above discussions, the significance of an optimal system of waste collection becomes more highlighted. Therefore, selection of optimal policy of waste collection has a significant impact on reducing costs.

Biography

Erfan Babaee Tirkolaee received his Bachelor and Master’s Degree in Industrial Engineering from Isfahan University of Technology, Isfahan, Iran (2012). Now, he is a Ph.D. candidate in Industrial Engineering at Mazandaran University of Science & Technology. Currently, he is a teacher in famous universities, and also he is working as Quality Assurance consultant in some automotive industries. His current research interests include Waste Management, Supply Chain Management, Uncertain Optimization, Mathematical Modeling and Meta-heuristic Algorithms. He has published more than 30 papers in reputed journals and conferences and has been serving as an editorial board and reviewer member of reputed journals.

Speaker
Erfan Babaee Tirkolaee Mazandaran University of science & Technology

Abstract

Industrialization has brought to developed countries, through a number of inventions, a comfort and welfare never achieved before. Unfortunately, this development also causes serious ecological drawbacks, with more and more visible, harmful consequences. Industrial waste valorization and recycling are a primordial necessity for environment protection. Such is the case for most polymer-matrix composites (more extensively used as structural materials substituting steels). These composite wastes are usually non-biodegradable and their difficult valorization and their recycling have been the subject of many studies. These studies have shown that the development of efficient, low-cost recycling procedures still requires a sustained research effort in order to bring pertinent answers to a variety of questions: (i) what would be the impact of a given composite treatment with a suitable chemical reagent on the properties of the extracted fibers or (ii) how to avoid fiber agglomeration by char when the extraction process is based on combustion in a furnace. Consequently, the development of a simple and innovative treatment process would be highly useful. In addition, a proper dissolving of the polymer matrix of commonly used composite materials would allow the recycling of undamaged glass fibers. The aim of this contribution is to demonstrate that phenol is an appropriate reagent to treat polymer matrix composite wastes without altering the reinforcements.

Biography

Mr. Abdelkrim ABOURRICHE is a Professor in the Industrial Engineering Department at National School of Applied Sciences in Safi, Morocco. Abourriche’s specialist areas are the development of original natural resources such as Moroccan oil shale. He also worked as Project Manager entitled: Solvent Extraction of organic matter of oil shale. Study and Promotion of the oils produced. This project is funded by Hassan II Academy of Science and Technology. In 2008 he took on the role of Head of the Industrial Engineering Department at National School of Applied Sciences Safi. He is the author of over 40 publications in international journals and conference proceedings refereed and a hundred oral presentations or by posters.

Speaker
Abdelkrim ABOURRICHE University of Cadi Ayyad

Abstract

In Japan, currently, most waste plastics from households are collected and recycled by one of three methods: thermal, chemical, and material recycling. An ideal approach would be to repeat material recycling several times, and to use thermal recycling only for materials that are difficult to reuse or when material recycling is impractical. However, the ratio of material recycle is still remained about 30%. This is because the mechanical properties of products made from material-recycled plastics are inferior to those of products made from virgin plastics. Therefore, material-recycled plastics are only used in low-value-added products and have limited applications. The poor mechanical properties of material-recycled plastics are believed to be due to the chemical degradation. Such chemical degradation is thought to be irreversible because it is associated with the breaking of molecular chains. However, our recent research indicated that the molecular properties of material-recycled plastics are not chemically degraded. We also found that the poor mechanical properties of the recycled plastics come from the change of the inner strucute of plastics. That is the “Physical Degradation”. Based on the theory, we constructed novel regeneration method of recycled plastics.

Biography

Shigeru Yao has completed his Ph.D at the age of 28 years from Kyoto University. And he had worked at Ube Industries as a researcher from 1986 to 2007 and moved to Mitsuishi Research Institute as a Senior Research Professional. At 2011, he had become a professor of Fukuoka University. He is now also be a Dorectore of Academic, Industrial, and Govermental Liaison Center and Director of AIG Collaborative Research Institute for Creation of Functional and Structural Materials. He has published more than 80 papers in reputed journals and has been serving as Secretary and Director of several repute Society.

Speaker
Shigeru Yao Fukuoka University

Abstract

Process Integration may be defined as “a holistic approach to design and operation that emphasises the unity of the process”. The technology was first developed for the systematic design of heat exchanger network during the first oil crisis in the 1970s, and was then extended for various heat integration problems in the 80s. In the late 1980s, process integration techniques were extended into mass integration and various waste minimisation problems. Some of the special cases of the latter include water minimization, hydrogen network and property integration, which may be generalized as resource conservation network. The developed techniques in process integration family may be broadly categorised into insight-based pinch analysis and mathematical programming tools. For pinch analysis, various graphical and algebraic techniques have been developed to determine the minimum fresh resources and waste flowrates prior to the design of resource conservation network; this step is commonly known as targeting. Once the resource targets are established, one may make use of some systematic procedure to design the network that meets the flowrate targets. This enables the maximum recovery of resources in the process plants, e.g. water, hydrogen (and other associated utility gases) as well as solvent. After two decades of developments, process integration techniques are now very mature and have been reported in various textbooks, review and industrial handbooks. This paper will present the overview of process integration techniques, with successful industrial case studies.

Biography

Dominic Foo is a Professor of Process Design and Integration at the University of Nottingham Malaysia Campus, and is the Founding Director for the Centre of Excellence for Green Technologies. He is a Fellow of the Institution of Chemical Engineers (IChemE), a Chartered Engineer with the UK Engineering Council, as well as the Vice President for the Asia Pacific Confederation of Chemical Engineering (APCChE). He is a world leading researcher in process integration for resource conservation. Professor Foo is an active author, with four books, more than 130 journal papers and made more than 190 conference presentations, with more than 30 keynote/plenary speeches. Professor Foo is the Editor-in-Chief for Process Integration and Optimization for Sustainability (Springer), Subject Editor for Trans IChemE Part B (Process Safety & Environmental Protection, Elsevier). He is the winners of the Innovator of the Year Award 2009 of IChemE, Outstanding Young Malaysian Award 2012, Outstanding Asian Researcher and Engineer 2013, and Top Research Scientist Malaysia 2016.

Speaker
Dominic C. Y. Foo University of Nottingham

Abstract

The potential danger of clinical waste has beenrecognized because of the presence of infectious microbes within the waste materials, including bandages, sharps such as needles and bodily fluids. Supercritical fluid carbon dioxide (SC-CO2) has been proven to be effective against clinical microorganisms, as it impacts target microorganisms both physically and chemically. The present SC-CO2 uses the properties of carbon dioxide at a supercritical level easily attainable and operated at predetermined pressure and temperature to effectively deactivate microorganisms. This research aims to investigate the ability of supercritical fluid carbon dioxide (SC-CO2), under specific pressure and temperature in reducing the survival of selected microbes commonly found in clinical wastes. The parameters were pressure 5, 10 , 20, 30 and 40 MPa; and temperatures applied were 35, 45, 60, 70 and 80 0C. The pressure loading times were 10, 20, 30 and 40 min. The effectiveness of SC-CO2 in inactivating clinical waste microbes is compared to the autoclave sterilization method. In autoclave treatment, the inactivation of bacteria in clinical solid waste was performed at pressures 0.55 MPa, 0.10 MPa and 0.19 MPa for the temperature of 1110C, 1210C and 1310C, respectively. In the present study, it was found that SC-CO2is more effective in the inactivation of the bacteria in clinical solid waste. Thus, it is a probable interest to adopt the SC-CO2 sterilization technology in clinical solid waste management with regards to sterilizing selected clinical wastes for reuse and recycle or safer disposal.

Biography

Nik Norulaini Nik Ab Rahman completed an MSc degree in Biochemistry from Mississippi State University, and PhD in Forest Science (Biotechnology) in 1987 from Michigan Technological University, USA. She is a Professor at University Sains Malaysia, Penang and had been involved in research in supercritical fluid extraction using carbon dioxide for the last 20 years.

Speaker
NIK NORULAINI UNIVERSITI SAINS MALAYSIA

Abstract

Waste is a resource and can be utilized as a worthwhile source. It is a precious commodity on account of utilization of the used as well as unused parts of the waste materials. It could help considerably to the immediate and distant environment of the waste materials. Recycling of waste materials is therefore carried out manually and mechanically under different circumstances. Considerable amounts of biomass materials are found in the waste materials, which can be used for energy generation processes and can be converted for onward conversion to other forms of energy keeping in view the demand. However, there are certain problems due to burning of biomass waste on theenvironment.There are certain other processes which can be applied to decrease intensity of the waste gases and smoke.

Biography

Speaker
Sadiq A.Shah MUET,SZAB Campus

Abstract

Indonesia is one of the largest palm oil producing countries in the world. According to Tree Crop Estate Statistics of Indonesia (2016) that estimates of palm oil production in Indonesia in 2017 amounted to 35,359,384 tons with total plantation area of 12,307,677 hectares. The high production of palm oil in Indonesia certainly affects the amount of waste generated. One of the major wastes generated in the oil palm plantation industry is the empty fruit bunches. The percentage of empty fruit bunches produced is 22% to 24% of the total weight of fresh fruit bunches (Gaol et al., 2013). Production of waste from oil palm empty fruit bunches in Indonesia is not comparable to the efforts of the community in the utilization of such waste. This is due to the lack of public knowledge of the potential of palm oil empty fruit bunches. Therefore, this paper aims to explain the potential waste of oil palm empty fruit bunches in various aspects of agriculture, so that it can be a reference for all communities, scientists, practitioners and academics who are interested in the utilization of waste oil palm empty fruit bunches. In addition, this paper will also explain how the important role of agricultural waste recycling, given agricultural waste is one of the main problems of agriculture in Indonesia.

Biography

Hadi Surahman was born on August 10, 1997. He is an undergraduate student at Sriwijaya University. Currently, he is a sixth semester student and studying the science of plant breeding at Agronomy Department, Faculty of Agriculture.

Speaker
Hadi Surahman Sriwijaya University

Abstract

School Health Education Programme is a vital intervention to improve the health, safety, and education of pupils and their schools. A fall in standards of WASH is crucial to the attainment of any sustainable development in schools. UNICEF recommends that toilet facilities should be available for one per 25 girls and one for female staff; one toilet plus one urinal (or 50 cm of urinal wall) per 50 boys, and one for male staff with handwashing facilities. This cross-sectional study helped to assess the adequacy, maintenance and use of WASH facilities in basic schools in the Hohoe Township, Ghana, using structured questionnaires and observational checklists. Analyses of data were done using StataSE (version 12.0) and Epi Info (version 7) at 95% confidence intervals. In all, 210 pupils (55.0% female, ages 8 - 19 years) and 25 school health coordinators were interviewed. Before the study, the municipal school health coordinator indicated that there are no comprehensive data on assessment of WASH facilities in their schools for the past eight years. Among the basic schools sampled for this study, 72% had pupil latrine ratios higher than the UNICEF recommendation. The pupils (70%) indicated that the number of dustbins in their basic schools were inadequate. The standard for use of toilet facilities in Hohoe basic schools was poor when compared with the UNICEF recommendation and dustbins were inadequate. Improvements on WASH standards in basic schools by stakeholders in health, education and technology are highly required to curb this menace within the Hohoe Township.

Biography

Obeng Derrick A.Y has completed his first Degree at the age of 25 years from University of Health and Allied Sciences. He is an Assistant Health, Safety and Environment Officer at TexStyles Ghana Limited, Vlisco Group, a renouned Textiles Industry. He has undertaken community service in about five communities before undertaking this research. He is an ardent environmental journalist and a bearer of innovative ideas to aid improve WASH standards in Schools. He was the pioneering President for the Public Health Students Association and currently works with Campus Radio.

Speaker
Obeng Derrick University of Health and Allied Sciences

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