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Waste Management & Research

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https://www.readbyqxmd.com/read/28431486/evaluating-the-operational-risks-of-biomedical-waste-using-failure-mode-and-effects-analysis
#1
Ying-Chu Chen, Pei-Yi Tsai
The potential problems and risks of biomedical waste generation have become increasingly apparent in recent years. This study applied a failure mode and effects analysis to evaluate the operational problems and risks of biomedical waste. The microbiological contamination of biomedical waste seldom receives the attention of researchers. In this study, the biomedical waste lifecycle was divided into seven processes: Production, classification, packaging, sterilisation, weighing, storage, and transportation. Twenty main failure modes were identified in these phases and risks were assessed based on their risk priority numbers...
April 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28431479/pneumatic-jigging-influence-of-operating-parameters-on-separation-efficiency-of-solid-waste-materials
#2
Mohd Aizudin Abd Aziz, Khairuddin Md Isa, Radzuwan Ab Rashid
This article aims to provide insights into the factors that contribute to the separation efficiency of solid particles. In this study, a pneumatic jigging technique was used to assess the separation of solid waste materials that consisted of copper, glass and rubber insulator. Several initial experiments were carried out to evaluate the strengths and limitations of the technique. It is found that despite some limitations of the technique, all the samples prepared for the experiments were successfully separated...
April 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28393635/assessment-of-environmental-policy-implementation-in-solid-waste-management-in-kathmandu-nepal
#3
Mohan B Dangi, Erica Schoenberger, John J Boland
In Nepal, full-fledged environmental legislation was rare before the democratic constitution of 1990. The first law covering the environment and sustainability was the Environment Protection Act 1997. While the Solid Waste Act was introduced in 1987, the problem of solid waste management still surfaces in Kathmandu. In order to understand the bedrock of this unrelenting failure in solid waste management, the manuscript digs deeper into policy implementation by dissecting solid waste rules, environmental legislations, relevant local laws, and solid waste management practices in Kathmandu, Nepal...
April 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28367757/integrated-environmental-policy-a-review-of-economic-analysis
#4
Hans Wiesmeth, Dennis Häckl
Holistic environmental policies, which emerged from a mere combination of technical activities in waste management some 40 years ago, constitute the most advanced level of environmental policies. These approaches to environmental policy, among them the policies in integrated waste management, attempt to guide economic agents to an environment-friendly behaviour. Nevertheless, current holistic policies in waste management, including policies on one-way drinks containers and waste electrical and electronic equipment, and implementations of extended producer responsibility with further applications to waste electrical and electronic equipment, reveal more or less severe deficiencies - despite some positive examples...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28367756/a-multi-objective-model-for-sustainable-recycling-of-municipal-solid-waste
#5
Ali Mirdar Harijani, Saeed Mansour, Behrooz Karimi
The efficient management of municipal solid waste is a major problem for large and populated cities. In many countries, the majority of municipal solid waste is landfilled or dumped owing to an inefficient waste management system. Therefore, an optimal and sustainable waste management strategy is needed. This study introduces a recycling and disposal network for sustainable utilisation of municipal solid waste. In order to optimise the network, we develop a multi-objective mixed integer linear programming model in which the economic, environmental and social dimensions of sustainability are concurrently balanced...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28367755/the-impact-of-nanoparticles-on-aerobic-degradation-of-municipal-solid-waste
#6
Senem Yazici Guvenc, Burcu Alan, Elanur Adar, Mehmet Sinan Bilgili
The amount of nanoparticles released from industrial and consumer products has increased rapidly in the last decade. These products may enter landfills directly or indirectly after the end of their useful life. In order to determine the impact of TiO2 and Ag nanoparticles on aerobic landfilling processes, municipal solid waste was loaded to three pilot-scale aerobic landfill bioreactors (80 cm diameter and 350 cm height) and exposed to TiO2 (AT) and Ag (AA) nanoparticles at total concentrations of 100 mg kg(-1) of solid waste...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28367754/waste-pickers-in-global-south-informal-recycling-sector-in-a-circular-economy-era
#7
Costas Velis
No abstract text is available yet for this article.
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28195008/packaging-waste-prevention-in-the-distribution-of-fruit-and-vegetables-an-assessment-based-on-the-life-cycle-perspective
#8
Camilla Tua, Simone Nessi, Lucia Rigamonti, Giovanni Dolci, Mario Grosso
In recent years, alternative food supply chains based on short distance production and delivery have been promoted as being more environmentally friendly than those applied by the traditional retailing system. An example is the supply of seasonal and possibly locally grown fruit and vegetables directly to customers inside a returnable crate (the so-called 'box scheme'). In addition to other claimed environmental and economic advantages, the box scheme is often listed among the packaging waste prevention measures...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28098022/system-dynamics-research-of-remanufacturing-closed-loop-supply-chain-dominated-by-the-third-party
#9
Shidi Miao, Tengfei Wang, Deyun Chen
With the rapid development of the electronic information industry in recent years, electronic products are being updated faster and faster, and e-waste recycling has become a common problem around the world. Firstly, this article contrasts recycling at home and abroad using the predicament of Midea Corp. Based on a closed-loop supply chain with the system dynamics method, a model is constructed and simulated. In this model, the collection point coverage rate is introduced to adjust the e-waste recycling rate dynamically...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28097947/evaluating-waste-printed-circuit-boards-recycling-opportunities-and-challenges-a-mini-review
#10
Abhishek Kumar Awasthi, Gabriel Ionut Zlamparet, Xianlai Zeng, Jinhui Li
Rapid generation of waste printed circuit boards has become a very serious issue worldwide. Numerous techniques have been developed in the last decade to resolve the pollution from waste printed circuit boards, and also recover valuable metals from the waste printed circuit boards stream on a large-scale. However, these techniques have their own certain specific drawbacks that need to be rectified properly. In this review article, these recycling technologies are evaluated based on a strength, weaknesses, opportunities and threats analysis...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28097922/cascade-use-indicators-for-selected-biopolymers-are-we-aiming-for-the-right-solutions-in-the-design-for-recycling-of-bio-based-polymers
#11
Jakob Hildebrandt, Alberto Bezama, Daniela Thrän
When surveying the trends and criteria for the design for recycling (DfR) of bio-based polymers, priorities appear to lie in energy recovery at the end of the product life of durable products, such as bio-based thermosets. Non-durable products made of thermoplastic polymers exhibit good properties for material recycling. The latter commonly enjoy growing material recycling quotas in countries that enforce a landfill ban. Quantitative and qualitative indicators are needed for characterizing progress in the development towards more recycling friendly bio-based polymers...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/27932548/total-control-of-chromium-in-tanneries-thermal-decomposition-of-filtration-cake-from-enzymatic-hydrolysis-of-chrome-shavings
#12
P Kocurek, K Kolomazník, M Bařinová, J Hendrych
This paper deals with the problem of chromium recovery from chrome-tanned waste and thus with reducing the environmental impact of the leather industry. Chrome-tanned waste was transformed by alkaline enzymatic hydrolysis promoted by magnesium oxide into practically chromium-free, commercially applicable collagen hydrolysate and filtration cake containing a high portion of chromium. The crude and magnesium-deprived chromium cakes were subjected to a process of thermal decomposition at 650°C under oxygen-free conditions to reduce the amount of this waste and to study the effect of magnesium removal on the resulting products...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/27909212/black-carbon-emission-reduction-strategies-in-healthcare-industry-for-effective-global-climate-change-management
#13
Emilia Mmbando Raila, David O Anderson
Climate change remains one of the biggest threats to life on earth to date with black carbon (BC) emissions or smoke being the strongest cause after carbon dioxide (CO2). Surprisingly, scientific evidence about black carbon emissions reduction in healthcare settings is sparse. This paper presents new research findings on the reduction of black carbon emissions from an observational study conducted at the UN Peacekeeping Operations (MINUSTAH) in Haiti in 2014. Researchers observed 20 incineration cycles, 30 minutes for each cycle of plastic and cardboard sharps healthcare waste (HCW) containers ranged from 3 to 14...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/27909210/a-full-scale-study-on-thermal-degradation-of-polychlorinated-dibenzo-p-dioxins-and-dibenzofurans-in-municipal-solid-waste-incinerator-fly-ash-and-its-secondary-air-pollution-control-in-china
#14
Xingbao Gao, Bingjing Ji, Dahai Yan, Qifei Huang, Xuemei Zhu
Degradation of polychlorinated dibenzo- p-dioxins and dibenzofurans in municipal solid waste incinerator fly ash is beneficial to its risk control. Fly ash was treated in a full-scale thermal degradation system (capacity 1 t d(-1)) to remove polychlorinated dibenzo- p-dioxins and dibenzofurans. Apart from the confirmation of the polychlorinated dibenzo- p-dioxin and dibenzofuran decomposition efficiency, we focused on two major issues that are the major obstacles for commercialising this decomposition technology in China, desorption and regeneration of dioxins and control of secondary air pollution...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/27909209/reuse-of-bituminous-pavements-a-mini-review-of-research-regulations-and-modelling
#15
Joke Anthonissen, Wim Van den Bergh, Johan Braet
Bituminous pavement can be recycled - even multiple times - by reusing it in new bituminous mixtures. If the mechanical properties of the binder get worse, this reclaimed asphalt is often used in the sub-structure of the road. Apparently, up till now, no end-of-life phase exists for the material. Actually, defining the end-of-life and the end-of-waste stage of a material is important for life cycle assessment modelling. Various standards and scientific studies on modelling life cycle assessment are known, but the crucial stages are not yet defined for reclaimed asphalt pavement...
April 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28219300/solid-waste-collection-technology-trends-in-north-america
#16
Marc J Rogoff, David E Ross
No abstract text is available yet for this article.
March 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28219299/performance-evaluation-of-the-bioreactor-landfill-in-treatment-and-stabilisation-of-mechanically-biologically-treated-municipal-solid-waste
#17
P Lakshmikanthan, G L Sivakumar Babu
The potential of bioreactor landfills to treat mechanically biologically treated municipal solid waste is analysed in this study. Developing countries like India and China have begun to investigate bioreactor landfills for municipal solid waste management. This article describes the impacts of leachate recirculation on waste stabilisation, landfill gas generation, leachate characteristics and long-term waste settlement. A small-scale and large-scale anaerobic cell were filled with mechanically biologically treated municipal solid waste collected from a landfill site at the outskirts of Bangalore, India...
March 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28219298/microwave-assisted-surface-modification-for-the-separation-of-polycarbonate-from-polymethylmethacrylate-and-polyvinyl-chloride-waste-plastics-by-flotation
#18
Luoluo Huang, Hui Wang, Chongqing Wang, Junyao Zhao, Bo Zhang
Microwave-assisted potassium permanganate modification (MPPM) was used for the flotation separation of polycarbonate (PC) from polyvinyl chloride (PVC) and polymethylmethacrylate (PMMA) waste plastics. The separation process was optimized by investigating the potassium permanganate concentration, treatment time, flotation time and frother concentration. MPPM selectively reduced the flotation recovery of PC. The optimum conditions were determined to be: potassium permanganate concentration, 2 mM/L; treatment time, 1 min; frother concentration, 17...
March 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28219297/municipal-household-solid-waste-fee-based-on-an-increasing-block-pricing-model-in-beijing-china
#19
Zhujie Chu, Yunga Wu, Jun Zhuang
This article aims to design an increasing block pricing model to estimate the waste fee with the consideration of the goals and principles of municipal household solid waste pricing. The increasing block pricing model is based on the main consideration of the per capita disposable income of urban residents, household consumption expenditure, production rate of waste disposal industry, and inflation rate. The empirical analysis is based on survey data of 5000 households in Beijing, China. The results indicate that the current uniform price of waste disposal is set too high for low-income people, and waste fees to the household disposable income or total household spending ratio are too low for the medium- and high-income families...
March 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28139184/what-is-the-right-level-of-recycling-of-plastic-waste
#20
Arne M Ragossnig, Daniel R Schneider
No abstract text is available yet for this article.
February 2017: Waste Management & Research
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