Papers by Md. Tasbirul Islam
Highlights of sustainability, Apr 18, 2024
The circular business model (CBM) concepts are vast, interconnected, and emerging. Research to da... more The circular business model (CBM) concepts are vast, interconnected, and emerging. Research to date has been somewhat fragmented, and there would be value in focusing on the systemic identification of the connectivity of the topics around CBM. Furthermore, the business model innovation (BMI) process and business model implementation were identified as two separate spectra of research that should be seen collectively and added to the literature. This article reviewed 256 articles (solely focusing on "CBM frameworks") published between 2007 and mid-2022, collected from the Scopus database, and analyzed using the content analysis method to identify the research gap/s. Results showed that under circular business model innovation (CBMI), the innovation process and their associated process modeling, archetypes, tools, experimentation, digitalization, and innovation via the inclusion of circular economy (CE) principles and sustainability in BMI were highlighted. From the CBM adoption/implementation perspectives, business ecosystem, technological innovation, product lifecycle management, CBM value dimensions (e.g., value proposition, value creation, and delivery), organizational capabilities, and dynamics were investigated. Topics around sustainability and circularity principles, strategies and organizational performance, CBM value streams, digitalization, and product-service systems were topical issues of the circular supply chain (CSC). A conceptual framework for gaining circular competencies integrating all elemental issues throughout the CBM development process (e.g., innovation, adoption within CSC) has been progressed. Based on the review, this article defined a circular business model as a business model that fundamentally applies one or more of the principles of CE at various product/service/material lifecycle stages, for which sustainability-focused technological innovation, collaboration among business ecosystem partners, and enhanced dynamic capabilities of any organization are prerequisites. Several research gaps were identified with potential avenues for future research directions, which will be helpful for policymakers, business organizations, and researchers.
Social Science Research Network, 2024
Research Square (Research Square), Mar 14, 2024
Textile waste management has become a pressing problem for developed nations due to over consumpt... more Textile waste management has become a pressing problem for developed nations due to over consumption and throw-away culture. Production-related CO 2 emission in textile sector is well investigated to some extent but little has been done identifying the best practice of downstream processing, such as incineration, mechanical recycling, and chemical recycling. This study aims to develop energy demand and carbon footprint analysis model in CCalC2 software to identify the best solution for Australia, which is one of the highest consumers of textile products and second largest generator of textile waste per capita. A model was developed according to the lifecycle assessment standards of ISO 14044 and PAS2050 embedded in the software along with the Ecoinvent database. Secondary data sources were used for the modelling. Four distinct scenarios have been developed, 100% land lling (as the baseline), 100% incineration, mechanical recycling, and chemical recycling of cotton portion of the textile waste. Results of the study showed that chemical recycling is the best option in terms of energy and recycled pulp material saving, while it was the most carbon intensive process (6,401 kg CO 2 eq/1000 kg). It is estimated that mechanical recycling process would emit around 5,368 kg CO 2 eq/1000 kg -the least CO 2 emitting process. Surprisingly, incineration showed a similar trend of CO 2 emission (e.g., 5,897 kg CO 2 eq)/1000 kg of mechanical recycling and such option could only be pursued if thermal energy recovery and electricity production are considered. Several limitations and future directions have been mentioned in the study which should be conducted in the future.
Environmental Science and Pollution Research, Apr 4, 2022
Consumer behavior is a critical consideration for the development of sustainable waste management... more Consumer behavior is a critical consideration for the development of sustainable waste management systems, including waste batteries, which pose a serious threat to human health and the environment if disposed of improperly. This study investigates the consumers' perspective on the waste battery collection and recycling behaviors in Australia, and analyses their implications for the development of recycling schemes. The results show that, although general awareness exists among consumers about the negative impacts of improper disposal, this awareness was not reflected during the disposal of waste batteries among the participants. Insufficient knowledge about the waste battery collection points and convenience were the most important factors affecting the inappropriate disposal behavior from most of the consumers. Over 50% of participants were unaware of the collection points for waste batteries. The most-preferred battery collection systems involved a deposit return system similar to that used for bottle recycling in the state of New South Wales (NSW) or collection at supermarkets/retailers. The most preferred methods for providing an incentive to recycle batteries were "old-for-new" battery swaps, "vouchers that could be used for other items in a store," and "cash payments." Several policy implications have been highlighted from this pioneering study that could shape the future development of sustainable waste battery management systems in Australia.
CRC Press eBooks, Nov 23, 2022
Resources Conservation and Recycling, 2020
Currently, Australian e-waste management system under the National Television and Computer Recycl... more Currently, Australian e-waste management system under the National Television and Computer Recycling Scheme (NTCRS) consider television, computer, and IT peripheral products and MobileMuster only considers mobile phones. A large proportion of E-waste from other categories is still unregulated. This study aims to estimate e-waste generation from this "unregulated" e-waste stream by a Weibull distribution-based sales-stocklifespan model from 2010 to 2030. A total of sixteen unregulated products (eleven electrical appliances and five electronic equipment) were selected for the estimation. The results of this study show that Australia will generate 342 kilo tonnes (kt) of the e-waste in 2020, which is predicted to grow to 461 kt in 2030 with an annual increase rate of around 3.7% from the 16 unregulated electrical and electronic equipment (EEE). Home laundry appliances, air treatment products, refrigeration appliances, large cooking appliances, and heating appliances are the critical items that account for more than 70% of the total e-waste generation. Base metals such as Fe, Cu, and Al will have a sharp increase by the year 2030, accounting 234.27 kt, 31.19 kt, 13.93 kt, respectively from the estimated e-waste quantities. Electronics products (e.g., home audio and visual devices, portable players, video games hardware, and others) will be a significant source of precious and rare-earth elements. By 2030, the estimated economic value of the metals will vary in between 2.74-4.60 billion US$. This study provides suggestion to policymakers in decision making for the future collection and recycling of e-waste in Australia.
Renewable & Sustainable Energy Reviews, Aug 1, 2018
Concentrating solar power (CSP) has received significant attention among researchers, power-produ... more Concentrating solar power (CSP) has received significant attention among researchers, power-producing companies and state policymakers for its bulk electricity generation capability, overcoming the intermittency of solar resources. The parabolic trough collector (PTC) and solar power tower (SPT) are the two dominant CSP systems that are either operational or in the construction stage. The USA and Spain are global leaders in CSP electricity generation, whereas developing countries such as China and India are emerging by aggressive investment. Each year, hundreds of articles have been published on CSP. However, there is a need to observe the overall research development of this field which is missing in the current body of literature. To bridge this gap, this study 1) provides a most up-to-date overview of the CSP technologies implemented across the globe, 2) reviews previously published review articles on this issue to highlight major findings and 3) analyzes future research trends in the CSP research. Text mining approach is utilized to analyze and visualize the scientific landscape of the research. Thermal energy storage, solar collector and policy-level analysis are found as core topics of discussion in the previous studies. With a holistic analysis, it is found that direct steam generation (DSG) is a promising innovation which is reviewed in this study. This paper provides a comprehensive outlook on the CSP technologies and its research which offers practical help to the future researchers who start to research on this topic.
Journal of Cleaner Production, Mar 1, 2020
This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Resources Conservation and Recycling, Oct 1, 2018
Based on environmental, legal, social, and economic factors, reverse logistics and closed-loop su... more Based on environmental, legal, social, and economic factors, reverse logistics and closed-loop supply chain issues have attracted attention among both academia and practitioners. This attention is evident by the vast number of publications in scientific journals which have been published in recent years. Hence, a comprehensive literature review of recent and state-of-the-art papers is vital to draw a framework of the past, and to shed light on future directions. The aim of this paper is to review recently published papers in reverse logistic and closed-loop supply chain in scientific journals. A total of 382 papers published between January 2007 and March 2013 are selected and reviewed. The papers are then analyzed and categorized to construct a useful foundation of past research. Finally, gaps in the literature are identified to clarify and to suggest future research opportunities.
Journal of Cleaner Production, Sep 1, 2022
Journal of Cleaner Production, Feb 1, 2021
Abstract In this study, young consumers, especially university students’ awareness, perception, a... more Abstract In this study, young consumers, especially university students’ awareness, perception, and disposal patterns for waste electrical and electronic equipment (WEEE), were measured using a questionnaire survey in Sydney, Australia. To the best of the authors’ knowledge, this is the first attempt to understand the consumer behavior of e-waste, focusing on educated young generation in an urban setting. Besides, descriptive analysis, statistical analysis was performed to identify correlation among variables, such as reasons for disposing of equipment, hoarding (storage), and disposal behavior. The lifespan of electrical and electronic equipment (EEE), when possessed by young consumers, was also investigated. The results of the study showed that although the consumers were aware of what electronic waste (e-waste) is, there is a severe lack of knowledge regarding collection points and current recycling programs, such as the National Television and Computer Recycling Scheme (NTCRS). Furthermore, it was also found that most respondents were inclined to sound e-waste disposal, indicating that awareness programs are essential to avoid the incorrect disposal of WEEE. Reasons for disposal and frequency of new product purchases were positively associated with the household income. Mean possession lifespan (in years) across our respondents was 6.21 for television sets, 4.31 for laptop computers and 5.47 for desktop computers. The findings provide valuable insights for policymakers developing sustainable e-waste management strategies among young consumers in Australia.
Journal of Environmental Management, Dec 1, 2020
Electronic waste (e-waste) is one of the fastest-growing waste streams in the world and waste mob... more Electronic waste (e-waste) is one of the fastest-growing waste streams in the world and waste mobile phone (WMP) represents a significant portion of the stream. Consumer awareness, consumption, and disposal behavior are of importance to assist in the implementation the circular economy. In Australia, some 94% of the adult population has a mobile phone, and the only WMP collection and recycling program in the country-"Mobi-leMuster" is operating under a voluntary scheme. This study reveals consumers' familiarity with the program, current consumption, and disposal behavior concerning mobile phones from a survey implemented in Sydney, Australia. In addition to descriptive analysis, statistical analysis (with the Chi-square test of independence and Multinomial Logistic Regression (MLR)) identifies factors that influenced the behaviors. The results show that only one-third of the respondents (32.42%) were aware of the program, and that there are 3.65 mobile phones in use per household, with an average possession lifespan of 3.17 years (including storage). Furthermore, there is a positive relationship between age and possession of mobile phones, and respondents discard or change their mobile phones while they were still working or repairable. The main reasons for disposing of mobile phones relate to them being either damaged/not functioning, lacking additional features, or having a backdated capacity. Storing (hoarding) mobile phones after active use was found predominant, and, more specifically, respondents aged 18-24 and 25-29 preferred to store their WMPs instead of taking them to collection points. The results reveal a need for environmental awareness-raising campaigns concerning WMPs recycling.
Journal of Environmental Management, Aug 1, 2019
Material flow analysis (MFA) is one of the most widely accepted and utilized tools in the industr... more Material flow analysis (MFA) is one of the most widely accepted and utilized tools in the industrial-ecology discipline, that measures the input-output materials and examines the pathways and flux of each material flow within the whole system. The application of MFA in e-waste management has recently increased and quite a few academic articles have been published on this issue providing decision support at the policy level. However, there is a need to understand the dynamics of MFA methodology, the data requirements (as well as the data sources used in the previous studies) and the lessons learnt from the studies, so that countries where such an Ewaste-MFA study has not yet been performed can apply the international experience of such an emerging research technique. This comprehensive review article presents the recent applications, trends, characteristics, research gaps and challenges of the MFA method that may help e-waste management with an overview of the need for a such tool to be applied. A country-wise analysis is presented and MFA models complemented by various associated methods are summarized with national-level, regional-level, product-level, and element-level assessment. The highlighted future research perspectives discussed in this study will help to analyze e-waste management systems more critically, including the hidden and known flows of waste products and associated materials, economic assessment of material recovery and the role of responsible authorities. This invaluable contribution will help future researchers, particularly from the data collection techniques and previously applied MFA models complemented by various associated methods.
Journal of Cleaner Production, Nov 1, 2019
This study presents an estimation of electrical and electronic equipment (EEE) products puton-mar... more This study presents an estimation of electrical and electronic equipment (EEE) products puton-market (PoM), electronic-waste (e-waste) generation and the stock of EEE products in Australia from the year 2000 to 2047, considering seven categories that encompass 51 different types of product. Holt's double-exponential smoothing and dynamic lifespans (using the Weibull distribution function) are applied to compute past and future PoM and in e-waste generation, respectively. With the estimation, it is found that EEE PoM was increased from 470 kilo tons (kt) to 2135 kt in a timeframe of 2000 to 2015. On the other hand, e-waste generation was 115 kt in the year 2000, which then increased to 485 kt in the year 2010. For the projected period (2018-2047), the annual average growth of e-waste generation will be around 3%. E-waste generation will increase, particularly for large household appliances (LHA), small household appliances (SHA) and consumer equipment (CE), in terms of weight. This study evaluates the potentially recoverable material and revenue potential of regulated products (e.g., computer, televisions and other IT peripherals currently considered under the national television and computer recycling scheme (NTCRS) and mobile phones) and e-waste generated outside of the current product coverage. The gap between revenue generation from regulated and non-regulated products is quantitatively assessed for the first time and reported in this paper. Sensitivity and uncertainty analysis performed by Monte Carlo simulation showed the robustness and accuracy of this study. This quantification will provide invaluable insights to policymakers, including products in future legislative reform as well as the development of the recycling industry in Australia. Furthermore, this study presents a transparent process of calculation for time-series data that can be used for e-waste generation estimation for other countries, as well.
This paper reviews around 41 articles providing the trends, characteristics, research gaps and ch... more This paper reviews around 41 articles providing the trends, characteristics, research gaps and challenges of these studies that may help e-waste management-related academics and practitioners with an overview of the need for such tool to be applied. The results and highlighted future research perspectives discussed in this study will definitely help to analyze e-waste management systems with more critical aspects, i.e., hidden and known flows of waste products and associated materials, economic assessment of material recovery and the role of responsible authorities.
World academy of science, engineering and technology, Sep 4, 2018
A. Background "Contributions to the development of waste management in Switzerland show that deci... more A. Background "Contributions to the development of waste management in Switzerland show that decision transparency, interregional cooperation, information policy and public participation are important factors with regard to the public acceptance of waste management in Switzerland".
Sustainability
Circular business models (CBMs) are integral to the concept of the circular economy (CE). The aim... more Circular business models (CBMs) are integral to the concept of the circular economy (CE). The aims of the study are to (1) redesign a canvas for CBM and (2) validate it through a single case study. The developed canvas is called the “Circular Business Model Value Dimension Canvas”. For the validation, a semi-structured interview with a social enterprise (SE) operating in hybrid CBM (i.e., resource recovery, sharing platform, and product use extension) in Australia has been performed. Results showed that a successful hybrid CBM for a SE necessitates the integration of forward and reverse supply chains through partnerships with new product retailers and resource recovery companies. Other important factors include the presence of physical stores, an effective product return strategy, initial funding support from the government, the employment of young individuals with special needs, and the promotion of behavioral change among low-income customer segments. Although the canvas was appli...
Journal of Cleaner Production
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Papers by Md. Tasbirul Islam