Material flow analysis in closed-loop supply chains: modelling of packaging waste recycling at different hierarchical levels

2004 ◽  
Vol 1 (2) ◽  
pp. 117 ◽  
Author(s):  
Rainer Souren
Buildings ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 207 ◽  
Author(s):  
Dongming Guo ◽  
Lizhen Huang

Construction and demolition waste (C&D waste) are widely recognized as the main form municipal solid waste, and its recycling and reuse are an important issue in sustainable city development. Material flow analysis (MFA) can quantify materials flows and stocks, and is a useful tool for the analysis of construction and demolition waste management. In recent years, material flow analysis has been continually researched in construction and demolition waste processing considering both single waste material and mixed wastes, and at regional, national, and global scales. Moreover, material flow analysis has had some new research extensions and new combined methods that provide dynamic, robust, and multifaceted assessments of construction and demolition waste. In this paper, we summarize and discuss the state of the art of material flow analysis research in the context of construction and demolition waste recycling and disposal. Furthermore, we also identify the current research gaps and future research directions that are expected to promote the development of MFA for construction and demolition waste processing in the field of sustainable city development.


2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Indika Thushari ◽  
Juckrit Vicheanteab ◽  
Dao Janjaroen

Abstract This study presents solid waste management planning in an urban green area, Bangkok, Thailand based on the material flow analysis (MFA) and life cycle assessment (LCA). Global warming potential (GWP) of four scenarios for handling solid waste generated in Chulalongkorn University Centenary Park, 2018 was assessed concerning the different ratios of waste recycling, composting, incineration, and landfilling. The results show that alternative systems proposed will result in lower GWP than the existing waste management strategy. The MFA results reveal that the final weights of solid waste ending up in a landfill are 98.8, 101.9, 68.2, and 44.8 t yr− 1 for scenarios 1, 2, 3, and 4, respectively. Increased rates of landfill diversion by increased recycling, composting, and incineration decreased the quantity of solid waste disposed to the landfill and improved the environmental profile of the park waste management system. The LCA results found landfilling to be the dominant source of greenhouse gas (GHG) burdens, while waste recycling was found to result in the reduction of GHG. The results highlight that the use of MFA and LCA as a combined tool to evaluate the environmental performance of solid waste management systems provides valuable information for policy and decision-makers.


2021 ◽  
Author(s):  
I Made Wahyu Widyarsana ◽  
Suci Ameliya Tambunan ◽  
Aurilia Ayuanda Mulyadi

Abstract This research was conducted to evaluate waste management in Bali Province through the waste recycling potential and waste diversion rate. These values describe how much waste can be recycled and diverted from landfills. Based on observations and data analysis, Bali’s total waste amounts to 2,253,542.03 kg d-1 or equivalent to 822,542.84 tonnes yr-1 from 9 (nine) cities/regencies with a population of 4,183,072 in 2019. Bali Province’s waste at the source is dominated by organic waste with 65% wet weight (ww) of the total waste generated, consisting of food waste and wood/leaf waste. It is also dominated by plastic waste with 15.70% ww and paper waste with 8.92% ww. The material flow analysis results in 53.02% ww of waste, or equivalent to 436,137.41 tonnes yr-1, which ended up in the landfill. Meanwhile, 13.36% ww or equivalent to 109,896.80 tonnes yr-1 is sold outside Bali, while 26.94% or equivalent to 221,583.37 tonnes yr-1 is unmanaged. Waste reduction by recycling in Bali’s landfill only reaches 20.38% of its potential; in comparison, the waste that can be diverted from landfills only reached 11.79% ww of the total generated waste. The reality is still very far from the 2025 government target of 30% reduction waste target and its diversion rate potential of 77.35% ww of the total waste generation.


2020 ◽  
Vol 38 (6) ◽  
pp. 649-659
Author(s):  
Thomas Nigl ◽  
Therese Elisabeth Schwarz ◽  
Cornelia Walch ◽  
Mirjam Baldauf ◽  
Bettina Rutrecht ◽  
...  

Although separate collection systems for portable batteries (PBs) have been installed years ago, high amounts of batteries still do not enter the collection systems of the member states of the European Union (EU). In Austria, the collection rate has recently dropped to the EU target value of 45%. For the purposes of this study, a comprehensive survey was conducted to identify the destinations of the other end-of-life batteries. A literature survey and an assessment of different waste streams (WSs) were followed by sampling and sorting campaigns for highly relevant WSs (residual waste, lightweight packaging waste, metal packaging waste, and small waste electrical and electronic equipment). The results underwent material flow analysis, showing that more than 800 metric tonnes of portable batteries are misplaced into non-battery-specific collection systems, 718 metric tonnes of them entering residual waste collection. Considerable amounts of batteries are stockpiled, stored or hoarded in Austrian households. Lithium-based batteries, representing a serious risk of fire to the waste industry and making up for 30% of the marketed amount, are still scarcely arriving in waste management systems.


2021 ◽  
Vol 13 (14) ◽  
pp. 7939
Author(s):  
Sohani Vihanga Withanage ◽  
Komal Habib

The unprecedented technological development and economic growth over the past two decades has resulted in streams of rapidly growing electronic waste (e-waste) around the world. As the potential source of secondary raw materials including precious and critical materials, e-waste has recently gained significant attention across the board, ranging from governments and industry, to academia and civil society organizations. This paper aims to provide a comprehensive review of the last decade of e-waste literature followed by an in-depth analysis of the application of material flow analysis (MFA) and life cycle assessment (LCA), i.e., two less commonly used strategic tools to guide the relevant stakeholders in efficient management of e-waste. Through a keyword search on two main online search databases, Scopus and Web of Science, 1835 peer-reviewed publications were selected and subjected to a bibliographic network analysis to identify and visualize major research themes across the selected literature. The selected 1835 studies were classified into ten different categories based on research area, such as environmental and human health impacts, recycling and recovery technologies, associated social aspects, etc. With this selected literature in mind, the review process revealed the two least explored research areas over the past decade: MFA and LCA with 33 and 31 studies, respectively. A further in-depth analysis was conducted for these two areas regarding their application to various systems with numerous scopes and different stages of e-waste life cycle. The study provides a detailed discussion regarding their applicability, and highlights challenges and opportunities for further research.


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