Day 1 :
Keynote Forum
Denis Rodrigue
Laval University, Canada
Keynote: Crosslinked polyethylene: production and recycling
Time : 15.15_15.45
Biography:
Denis Rodrigue obtained a B.Sc. (1991) and a Ph.D. (1996) in chemical engineering from Université de Sherbrooke (Sherbrooke, Canada) with a specialization in non-Newtonian fluid mechanics. In 1996 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 polymer foams and composites based on thermoplastics and elastomers. His main focus is related to polymer recycling and rheology.
Abstract:
One of the most used resin in the plastics industry is polyethylene (PE). Although PE has good impact resistance and ductility, its low maximum use temperature and mechanical strength limit some commercial development, especially for load-bearing applications. To get better overall performances, crosslinking is performed to improve the chemical, mechanical and thermal properties of PE. Although PE can be crosslinked by using various chemical and physical methods, this makes the resulting polymers more difficult to recycle since a 3D network is created. In this presentation, the different PE crosslinking techniques to manufacture crosslinked PE (XLPE) parts are described. Then, as more than half of the XLPE-based products are disposed directly after use, several options to reuse and/or recycling these products are discussed to overcome this environmental issue and find sustainable solutions. A focus is made on mechanical recycling and de-crosslinking techniques for XLPE to generate recycled-XLPE (r-XLPE). Finally, a conclusion will review the current situation and research gaps which must be filled by future works.
Keynote Forum
Bijoy Kumar Mondal
Uttara High School and College, Bangladesh
Keynote: Sol-gel Derived Nano Composit for Recovery of Energy Sources from Waste Plastic
Time : 15.45_16.45
Biography:
Dr. Bijoy Kumar Mondal is a chemist with many years of experience in analytical, environmental and material chemistry. He has extensive background on fabrication and characterization of porous zeolitic materials including nanomaterials, which can be used as catalysts as well as other environmental purposes. He has developed a sustainable technology (waste plastic-to-fuel), which is cost-effective and eco-friendly. He has been teaching chemistry for fourteen years, and published many research articles in peer-reviewed journals. He has experience working as a reviewer in Internationa Journal. Moreover, he participates in different international conferences as speaker and Keynote speaker.
Abstract:
Pyrolysis of plastic waste currently gained high attention from the researchers in order to convert it into liquid fuel to overcome the depletion of liquid fossil fuel. In the present investigation, pyrolysis of waste LDPE and HDPE wastes were investigated using silica-alumina and activated carbon dope silica-alumina which were synthesized by sol-gel process. Catalysts were characterized with FTIR, XRD, SEM, EDS, BET etc. Pyrolysis experiments were carried out in a batch reactor. About 96% conversion was achieved by using the ratio of polymer and catalyst in 25 wt%. Among the products, about 43 wt% was gasoline and 28 wt% was kerosene. Characterization of the liquid hydrocarbon mixture was performed with infrared (FTIR), nuclear magnetic resonance spectroscopy (1H NMR, 13C NMR and DEPT-135) and gas chromatography–mass spectroscopy (GC-MS). It was found that the liquid products consist of branched saturated and unsaturated hydrocarbons. The fuel properties of the gasoline-range distillate (gasoline fraction) were comparable to those of ultra-low sulfur gasoline. This can be used as regular petro-fuel. Thus, this pyrolysis technology should be commercialized in order to get waste plastic free clean environment by cost effective way.
Keynote Forum
M. Yves Noel
Les Investissements Yves Noel Inc,USA
Keynote: Solutions and Alternatives to landfill’s closings in near future
Time : 9.15_10.00
Biography:
Waste management and Recycling Expert
Abstract:
Managing the industrial, commercial and residential plastic wastes is a real concern today. For many decades. the only solution to manage waste was to send it to landfill or incineration centers. Now, many landfills are close to capacity and according to BAPE, over 20% of all landfills in Quebec will reach their capacity limit capacity by 2030. In Ontario for example, the province has long been exporting nearly a third of its trash to the U.S. due to lower disposal costs in states like Michigan and New York.What alternatives can be considered to divert plastic waste from landfill in an environmentally responsible manner? One promising possibility can be found in applying pyrolysis technology to process plastic waste into usable energy products in a manner that also reduces GHG. Ultrafima (a Quebec company) and Crown Mark Energy (an Ontario company) have been working together for many years to develop a proprietary pyrolysis process that can be applied to the North American standards. Although the pyrolysis concept itself is not new, identifying the correct properties of plastic wastes to produce a saleable energy product require many variables to be considered and tested. Their proprietary process has resulted in a GHG reducing process that produces marketable low carbon intensity energy products from plastic waste.Molecular recycling technologies can be the last step before landfilling. Over 90% of plastic wastes in Canada are currently ending up in landfill with only 8-10% currently captured with the 3RV. Pyrolysis solutions can be implemented today and can have a positive impact in the future of waste management
Keynote Forum
Sara. Belarouf
Mohammed V University, Morocco
Keynote: ENERGY RECOVERY FROM WASTE IN (MOROCCO)
Time : 10.00_10.45
Biography:
Dr Eng Sara Belarouf received his PhD in Mechanics and Energetics at the Mohammed V University in Rabat, Morocco in 2021, with a thesis dedicated to energy efficiency in buildings. After obtaining a The Brussels Faculty of Engineering Vrije Universiteit Brussel (VUB) research fellowship in 2019, Currently an Phd researcher in the research laboratory in Morocco & Belgium and editor in chief of the scientific journal "Global Research Review ».
Abstract:
Morocco's mobility for the development of renewable energies was confirmed during the COP 22 (Conference of the Parties) in Morocco, during which Morocco communicated the decision to increase the share of renewable energies from 42% of the installed capacity planned for 2020 to 52% by 2030. Morocco's energy strategy, which places great importance on the development of renewable energy and energy efficiency, Among these renewable energies is biomass. Household waste in Morocco contains about 65% to 75% of organic matter, thus a very large amount of biomass. Waste recovery is the best solution for waste management. The objective of this research is to evaluate the potential of household waste for the production of electrical and thermal energy in (Morocco) using two modes of energy recovery: combustion and anaerobic digestion.
Keynote Forum
Claudia Maurer
University of Stuttgart, Germany
Keynote: Demand-oriented co-digestion of separated biowaste press filtrate to optimize energy management at wastewater treatment plants
Time : 11.00_11.30
Biography:
Leader of "Biological Processes in the Circular Economy" (BVK) Institute for Sanitary Engineering, Water Quality and Solid Waste Management Chair for Waste Management and Emissions.
Abstract:
The high-quality energetic utilization of biomass, in particular of biogenic residues for the efficient production of bioenergy, plays an important role in achieving the European and national energy and climate policy objectives. The integration of fluctuating power generation from wind energy and photovoltaics plays an important role in a targeted energy supply with a high share of renewable energies. In addition to a sustainable expansion of the use of renewable energies and increased resource efficiency, targeted demand-oriented energy recovery from biogenic residues can make an important contribution to the system integration of renewable energies and to balance fluctuating energy generation. Due to the flexible and adaptable operation of biogas-fueled Combined Heat and Power (CHP) units, electricity can be generated when other renewable energy sources are not available. Power generation is decentralized to existing plants, supporting the power supply and making grid operations more secure. High investment costs, lengthy permitting processes, and resistance from the public, among other factors, pose significant challenges to the rapid expansion of biowaste anaerobic digestion plants. Furthermore, existing composting plants cannot always be expanded with digestion stages in the context of cascade utilization, as factors such as plant size and biowaste quality play a decisive role. Against this background, the alternative recycling paths for biowaste to generate energy is increasing. Liquid emissions from composting plant have been identified as a known problem in composting plant. Hereby, process water, condensation water, wastewater from plant cleaning were not accurately distinguished from each other in practice due to mostly common discharge and collection systems (Amlinger, et al., 2005). The amount of leachate (process water and other wastewater) is between 10-60 L/t waste and the amount of condensed water is between 5-300 L/t waste, depending on the process. (Hupe, et al., 1998)At the same time, there are more than 1,200 wastewater treatment plants (WWTP) in Germany that currently produce digester gas (Blesl, et al., 2010), but only cover about 50% of their own energy demand. Due to the specific energy density and limited dewaterability of sludge from wastewater treatment, it is not possible to realize the maximum technical space load in sludge digestion plants (ABWASSERTECHNISCHE VEREINIGUNG, 1996). Thus, co-digestion of sewage sludge with biowaste is a reasonable, efficient and cost-effective alternative.
Keynote Forum
Jingjing Huang
University of Stuttgart, Germany
Keynote: Study on the Co-fermentation of separated press water of biowaste with sewage sludge
Time : 11.30_12.00
Biography:
Research Assistant (BVK and RIK) Institute for Sanitary Engineering, Water Quality and Solid Waste Management, Chair of Waste Management and Emissions.
Abstract:
The Waste Framework Directive requires the Member States to respond appropriately to promote the separate collected bio-waste for fermentation and composting. In Germany, the separately collected bio-waste is usually used for energy purposes in fermentation plants, and then for materials reuse in composting plant. At the same time, the capacities of fermentation tank for sewage sludge (FT) in existing wastewater treatment plants (WWTP) are not fully used. The separate utilization of the liquid and solid components of bio-waste represents an innovative concept for Germany to use and treat bio-waste energetically with the existing capacities in fermentation tank in WWTP and to recycle the solid fraction of pressed bio-waste (SF) in composting plants.By pressing bio-waste, the easily degradable organic compounds are concentrated in press water (PW) from bio-waste, which is ideally suited to use as a co-substrate with sewage sludge in fermentation tank of WWTP. Due to significantly higher energy content and the rapid degradation kinetics compared to sewage sludge, relatively high-performance gradients could achieve in biogas production. Through a targeted co-fermentation of PW, it can significantly increase the biogas production to cover its own energy requirements of the WWTP. Additionally, a demand-oriented flexible biogas production to adapt of the varying power requirements of the WWTP and to the power grid could be possible. The hard-to-decompose solid components of the pressed bio-waste, can be treated in existing composting plants, so the recycling of bio-waste, as a higher valued recovery, given by the waste hierarchy can be fullfilled.
Keynote Forum
Leila Miganei
Waste Disposal and Geomechanics, Clausthal University of Technology,Germany
Keynote: New residue-free processing of copper slag from smelter
Time : 12.00_12.30
Biography:
Over 8 years’ research experience in the field of environmental process engineering, specializing in the impact of heavy metals on the environment and ways of reintroducing them back into the economic cycle, PhD in environmental Engineering, Proficient in MS Office,Fluent in German and Farsi, Intermediate in Spanish
Abstract:
Deposited copper slag originated from a region Mansfeld (Saxony-Anhalt, Germany) was characterized from mineralogical, chemical and structural point of view for purpose of its sustained processing and removal. Subsequently hydrometallurgical processing of copper slag was investigated because of extraction of metals as Zn, Cu, Ni, Co, Mo, Cr, V and Fe in total content about 5%. Although the slags with their mineralogical composition of calcium, magnesium, aluminum, and iron silicates are perfectly suitable as building materials, their cumulative heavy metal content prevents this. Novel residue-free recycling process for copper smelter slag was developed which consists of sorting, roasting, leaching with HCl, carbonate precipitation, precipitate complexation and solvent extraction of metals steps. This process solves the problem with calcium silicate matrix which enclosed dissolved metals. By setting pH of leaching process to ~2.5, 80e90% of Cu can be extracted and dissolution of silicate matrix can be prevented. Mass balance of process strategy indicates the proceeds from four marketable products: blasting agent, cement additive, metal salts solution, and fertilizer, which make the process more economical with sustainable benefits. Economic evaluation of new process is also done and confirmed its utility and favourable balance.
Keynote Forum
Marcin Sobczyk
Przedsiebiorstwo Wielobranzowe Anmet Andrzej Adamcio,Poland
Keynote: Recipe for the wind turbine blades sustainable recycling
Time : 13.30_14.00
Biography:
Marcin Sobczyk, born in 1988, enthusiast of wind energy, he focused his education and work on the wind business. Graduated from the University of Adam Mickiewicz in Poznań, obtaining a master's degree in renewable energy and sustainable development. Initially, he worked as a Project Developer creating new wind parks in Poland. Then, as On-Site Manager, he participated in the construction of wind parks all over Europe, including the Arctic Circle, as well as in North Africa. In total, he was responsible for the construction of over 20 wind parks consisting of over 200 wind turbines in total. After also worked as Wind Park Service Manager. Currently, as a Project Manager at Anmet, he is responsible for the implementation of projects related to the acquisition of blades for recycling and supports the distribution of blade products. Privately, husband and father
Abstract:
As estimated by the Global Wind Energy Council, after 2035, over 200,000 blades will have to be recycled around the world. According to the WindEurope report from May 2020, in the technology of recycling composite waste, further research and development is necessary to extend the life of the blades until more effective environmental methods will be developed. The answer to this problem has been solved by Anmet, company from Poland, which provides services related to cutting and transporting blades for owners and operators of wind farms. Created on the basis of Anmet's own experience and research, after a series of implementations and patents, the company has created a “recipe” for blades recycling and repurposing which are a direct solution and a proposal to use blades in a way that extends their lifetime which generate benefits for the environment and the people / communities who implement these solutions and products. Company also designed and build own type of saws which allow cutting blades in the field in a emission-free manner
Keynote Forum
Dan Cudjoe
Nanjing University of Information Science & Technology, China
Keynote: The potential energy and environmental benefits of global recyclable resources
Time : 14.00_14.30
Biography:
Dan Cudjoe has completed his PhD from Beijing University of Technology and postdoctoral studies from Center for Energy & Environmental Policy Research, Beijing Institutute of Technology. He is an Associate Professor at the School of Business, Nanjing University of Information Science & Technology. He is the winner of the International Young Scientists Fund by the National Natural Science Foundation of China. He has published more than 10 papers in reputed journals and has been serving as an editorial board member of repute.
Abstract:
Globally, the production of vast volumes of municipal solid waste impacts public health and the climate. Greening the solid waste sector could contribute to the achievement of the Sustainable Development Goals (SDGs). Therefore, this study assessed how the potential electricity and environmental benefits of recycling paper and plastic wastes could contribute to the achievement of the SDGs. The study used the formulation of model equations methods to estimate the electricity consumption, diesel consumption, and greenhouse gas (GHG) emissions saved due to recycling. The key findings show that the 132,443.94 toe/day of electricity saved globally in 2012 soared to 182,385.18 toe/day in 2025. In 2012 and 2025, an average of 63.6% of electricity was saved. Globally, recycling saved a record of 1,380,721,68 ktons CO2eq/day of GHG emissions in 2012 and 1,901,349,13 ktons CO2eq/day in 2025. It was further realized that the overall volume of diesel fuel saved in 2012 grew from 511,146 to 703,887 million Litres/day in 2025, representing a rise of 37.7%. The sensitivity analysis shows an increase in the waste collection rate, the fraction of paper waste, the fraction of plastic waste, and the recycling rate in 2025 will boost recyclable resources' energy and environmental benefits. The findings of this study could offer scientific guidance for the achievement of the SDGs related to solid waste recycling and management.
Keynote Forum
Jon Michael Huls
Santa Monica College,USA
Keynote: On Building Distributed Organics Recycling Networks in Municipalities to Meet Climate Action Goals
Time : 14.30_15.00
Biography:
Prof. Huls is a business leader and academician, and active in environmental affairs since Earth Day 1970. His project resumé includes technical assistance to governments, corporations, and numerous prestigious agencies. Huls is a California credentialed instructor in the Department of Earth Sciences at Santa Monica College in Recycling and Resource Management, a State of Californiaaccredited Degree and Certificate Program. Co-author of World Bank/UNEP Report “Recycling from Municipal Waste: State of the Art Review.” Currently a Board Director of SWEEP, the Solid Waste Environmental Excellence Performance Standard, an NGO dedicated to formulating sustainable materials management standards in the United States.
Abstract:
California‘s Climate Action Plan calls for reducing and recycling 75% of organic wastes currently disposed in landfills by 2025. Potent short-lived greenhouse gases (GHG) emitted by the decomposition of organic material in landfills greatly contribute to global climatic change. Reducing organic wastes and creating value-added products such as compost, fertilizers, and biofuels is part of California’s landmark Global Warming Solutions Act of 2006, and is fundamental to reaching the statewide recycling goal. Organic waste accounts for more than 60% of municipal waste or about 24 million tons landfilled annually. California currently has about 160 permitted compost facilities and 12 anaerobic digestion (AD) facilities that process roughly 6 million tons of organic materials annually; with another 4 million tons of permitted capacity available. However, even if all this capacity is fully utilized, it leaves California well-short of its goal by more than 14 million tons. California’s enforcement agency, CalRecycle, ensures compliance of local governments to enforce the state goal on local businesses and residents, even amid the COVID-19 Pandemic. Moving water-laden organics to remote centralized facilities is expensive and counterproductive in meeting GHG reduction targets. The author is implementing in local municipalities an alternative upstream strategy focused on at-source organic waste reduction, reuse and recycling that can complement offsite centralized facilities and assist in reducing the 14 million tons shortfall. The appropriate technologies include micro-composting, mulching, xeriscaping, organic gardening, and package AD to minimize collection requirements. This paper presents the technological, environmental, and economic implications of this reducing, then producing approach.