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Waste Management & Research

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https://www.readbyqxmd.com/read/28816103/assessment-of-work-related-accidents-associated-with-waste-handling-in-belo-horizonte-brazil
#1
Marcos Pg Mol, Amanda F Pereira, Dirceu B Greco, Sandy Cairncross, Leo Heller
As more urban solid waste is generated, managing it becomes ever more challenging and the potential impacts on the environment and human health also become greater. Handling waste - including collection, treatment and final disposal - entails risks of work accidents. This article assesses the perception of waste management workers regarding work-related accidents in domestic and health service contexts in Belo Horizonte, Brazil. These perceptions are compared with national data from the Ministry of Social Security on accidents involving workers in solid waste management...
August 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28816085/dynamics-of-a-vertical-flow-windrow-vermicomposting-system
#2
Ales Hanc, Tereza Castkova, Stanislav Kuzel, Tomas Cajthaml
Large-scale vermicomposting under outdoor conditions may differ from small-scale procedures in the laboratory. The present study evaluated changes in selected properties of a large-scale vertical-flow windrow vermicomposting system with continuous feeding with household biowaste. The windrow profile was divided into five layers of differing thickness and age after more than 12 months of vermicomposting. The top layer (0-30 cm, age <3 months) was characterised by partially decomposed organic matter with a high pH value and an elevated carbon/nitrogen (C/N) ratio...
August 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28789599/influence-of-silica-alumina-support-ratio-on-h2-production-and-catalyst-carbon-deposition-from-the-ni-catalytic-pyrolysis-reforming-of-waste-tyres
#3
Yeshui Zhang, Yongwen Tao, Jun Huang, Paul Williams
The influence of catalyst support alumina-silica in terms of different Al2O3 to SiO2 mole ratios containing 20 wt.% Ni on the production of hydrogen and catalyst coke formation from the pyrolysis-catalysis of waste tyres is reported. A two-stage reactor system was used with pyrolysis of the tyres followed by catalytic reaction. There was only a small difference in the total gas yield and hydrogen yield by changing the Al2O3 to SiO2 mole ratios in the Ni-Al2O3/SiO2 catalyst. The 1:1 ratio of Al2O3:SiO2 ratio produced the highest gas yield of 27...
August 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28784057/green-house-gas-mitigation-capacity-of-a-small-scale-rural-biogas-plant-calculations-for-bangladesh-through-a-general-life-cycle-assessment
#4
Khondokar M Rahman, Lynsey Melville, David Fulford, Sm Imamul Huq
Calculations towards determining the greenhouse gas mitigation capacity of a small-scale biogas plant (3.2 m(3) plant) using cow dung in Bangladesh are presented. A general life cycle assessment was used, evaluating key parameters (biogas, methane, construction materials and feedstock demands) to determine the net environmental impact. The global warming potential saving through the use of biogas as a cooking fuel is reduced from 0.40 kg CO2 equivalent to 0.064 kg CO2 equivalent per kilogram of dung. Biomethane used for cooking can contribute towards mitigation of global warming...
August 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28784047/sampling-method-for-the-determination-of-methane-emissions-from-landfill-surfaces
#5
Federico Lucernoni, Matteo Rizzotto, Laura Capelli, Valentina Busini, Renato Del Rosso, Selena Sironi
The first aim of this work is the definition and the study of a suitable sampling method for the measurement of landfill gas (LFG) emissions from landfill surfaces, since, up to now, there are no codified nor universally accepted sampling methods for this specific task. The studied sampling method is based on the use of a static hood. The research work involves a preliminary theoretical study for the hood design, experimental tests for the definition of the optimal sampling procedures, and simulations of the hood fluid-dynamics for the system validation...
August 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28768461/quantitative-analysis-of-impact-of-awareness-raising-activities-on-organic-solid-waste-separation-behaviour-in-balikpapan-city-indonesia
#6
Noriaki Murase, Takehiko Murayama, Shigeo Nishikizawa, Yuriko Sato
Many cities in Indonesia are under pressure to reduce solid waste and dispose of it properly. In response to this pressure, the Japan International Cooperation Agency and the Indonesian Government have implemented a solid waste separation and collection project to reduce solid waste in the target area (810 households) of Balikpapan City. We used a cluster randomised controlled trial method to measure the impact of awareness-raising activities that were introduced by the project on residents' organic solid waste separation behaviour...
August 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28750594/global-capacity-potentials-and-trends-of-solid-waste-research-and-management
#7
Michael A Nwachukwu, Mersky Ronald, Huan Feng
In this study, United States, China, India, United Kingdom, Nigeria, Egypt, Brazil, Italy, Germany, Taiwan, Australia, Canada and Mexico were selected to represent the global community. This enabled an overview of solid waste management worldwide and between developed and developing countries. These are countries that feature most in the International Conference on Solid Waste Technology and Management (ICSW) over the past 20 years. A total of 1452 articles directly on solid waste management and technology were reviewed and credited to their original country of research...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28735564/synergistic-effect-of-co-digestion-to-enhance-anaerobic-degradation-of-catering-waste-and-orange-peel-for-biogas-production
#8
Muzammil Anjum, Azeem Khalid, Samia Qadeer, Rashid Miandad
Catering waste and orange peel were co-digested using an anaerobic digestion process. Orange peel is difficult to degrade anaerobically due to the presence of antimicrobial agents such as limonene. The present study aimed to examine the feasibility of anaerobic co-digestion of catering waste with orange peel to provide the optimum nutrient balance with reduced inhibitory effects of orange peel. Batch experiments were conducted using catering waste as a potential substrate mixed in varying ratios (20-50%) with orange peel...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28732454/leaching-behaviour-of-municipal-solid-waste-incineration-bottom-ash-from-granular-material-to-monolithic-concrete
#9
Sabrina Sorlini, Maria Cristina Collivignarelli, Alessandro Abbà
The aim of this work was to assess the leaching behaviour of the bottom ash derived from municipal solid waste incineration (MSWI) used in concrete production. In particular, the release of pollutants was evaluated by the application of different leaching tests, both on granular materials and monolithic samples (concrete mixtures cast with bottom ash). The results confirmed that, according to Italian regulations, unwashed bottom ashes present critical issues for the use as alternative aggregates in the construction sector due to the excessive release of pollutants; instead, the leachate from washed bottom ashes was similar to natural aggregates...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28718391/corrigendum
#10
(no author information available yet)
Operating and environmental performances of commercial-scale waste gasification and melting technology by Nobuhiro Tanigaki, Yasuka Fujinaga, Hirohisa Kajiyama, and Yoshihiro Ishida. Waste Management & Research 2013; 31: 1118-1124, DOI: 10.1177/0734242X13502386. The authors regret that they omitted the following declaration of conflicting interest in the article: Declaration of Conflicting Interest At the time of publication, all authors were employed by Nippon Steel & Sumikin Engineering Co., Ltd. Technology developed by Nippon Steel & Sumikin Engineering Co...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28703076/sampling-characterisation-and-processing-of-solid-recovered-fuel-production-from-municipal-solid-waste-an-italian-plant-case-study
#11
Ezio Ranieri, Gabriela Ionescu, Arcangela Fedele, Eleonora Palmieri, Ada Cristina Ranieri, Vincenzo Campanaro
This article presents the classification of solid recovered fuel from the Massafra municipal solid waste treatment plant in Southern Italy in compliancy with the EN 15359 standard. In order to ensure the reproducibility of this study, the characterisation methods of waste input and output flow, the mechanical biological treatment line scheme and its main parameters for each stage of the processing chain are presented in details, together with the research results in terms of mass balance and derived fuel properties...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28699841/co-digestion-of-agricultural-and-municipal-waste-to-produce-energy-and-soil-amendment
#12
Maritza A Macias-Corral, Zohrab A Samani, Adrian T Hanson, Paul A Funk
In agriculture, manure and cotton gin waste are major environmental liabilities. Likewise, grass is an important organic component of municipal waste. These wastes were combined and used as substrates in a two-phase, pilot-scale anaerobic digester to evaluate the potential for biogas (methane) production, waste minimisation, and the digestate value as soil amendment. The anaerobic digestion process did not show signs of inhibition. Biogas production increased during the first 2 weeks of operation, when chemical oxygen demand and volatile fatty acid concentrations and the organic loading rate to the system were high...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28691636/optimal-control-of-greenhouse-gas-emissions-and-system-cost-for-integrated-municipal-solid-waste-management-with-considering-a-hierarchical-structure
#13
Jing Li, Li He, Xing Fan, Yizhong Chen, Hongwei Lu
This study presents a synergic optimization of control for greenhouse gas (GHG) emissions and system cost in integrated municipal solid waste (MSW) management on a basis of bi-level programming. The bi-level programming is formulated by integrating minimizations of GHG emissions at the leader level and system cost at the follower level into a general MSW framework. Different from traditional single- or multi-objective approaches, the proposed bi-level programming is capable of not only addressing the tradeoffs but also dealing with the leader-follower relationship between different decision makers, who have dissimilar perspectives interests...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28691594/an-analytical-hierarchy-process-based-study-on-the-factors-affecting-legislation-on-plastic-bags-in-the-usa
#14
Zhongguo Li, Fu Zhao
Annually, a large number of used plastic shopping bags are released into the environment, posing significant threats to public health and wildlife. Owing to these concerns, many local, regional, and national governments around the world have passed legislation to ban or restrict the use of plastic shopping bags. However, in the USA there are only 18 states that have approved plastic bag bans/fees, and even within these states these regulations do not cover all cities or counties. There are many factors that could affect the development and implementation of these regulations...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28687064/leachate-generation-from-landfill-in-a-semi-arid-climate-a-qualitative-and-quantitative-study-from-sousse-tunisia
#15
Youssef Frikha, Johann Fellner, Moncef Zairi
Despite initiatives for enhanced recycling and waste utilization, landfill still represents the dominant disposal path for municipal solid waste (MSW). The environmental impacts of landfills depend on several factors, including waste composition, technical barriers, landfill operation and climatic conditions. A profound evaluation of all factors and their impact is necessary in order to evaluate the environmental hazards emanating from landfills. The present paper investigates a sanitary landfill located in a semi-arid climate (Tunisia) and highlights major differences in quantitative and qualitative leachate characteristics compared to landfills situated in moderate climates...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28681692/comparison-between-students-and-residents-on-determinants-of-willingness-to-separate-waste-and-waste-separation-behaviour-in-zhengzhou-china
#16
Xiaoping Dai, Yuping Han, Xiaohong Zhang, Wei Hu, Liangji Huang, Wenpei Duan, Siyi Li, Xiaolu Liu, Qian Wang
A better understanding of willingness to separate waste and waste separation behaviour can aid the design and improvement of waste management policies. Based on the intercept questionnaire survey data of undergraduate students and residents in Zhengzhou City of China, this article compared factors affecting the willingness and behaviour of students and residents to participate in waste separation using two binary logistic regression models. Improvement opportunities for waste separation were also discussed...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28681661/lead-waste-glasses-management-chemical-pretreatment-for-use-in-cementitious-composites
#17
Elena Bursi, Luisa Barbieri, Isabella Lancellotti, Andrea Saccani, Maria Bignozzi
This article investigates the effect of a low-impact chemical treatment based on a nitrilotriacetic acid chelating agent on the reactivity of funnel glass derived from discarded cathode ray tubes. Treated and untreated glass has been recycled either as a supplementary cementing material or as a fine aggregate in cementitious mortars. The effect of the treatment on the chemical and morphological properties of cullets, as well as on the solubility in an alkaline environment has been evaluated. Data so far collected underline a change in glass cullets characteristics that consequently affects their behaviour in cementitious mortars, reducing the pozzolanic activity as supplementary cementing material, but strongly decreasing the tendency towards alkali silica reactions when added as a fine aggregate...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28660837/effect-of-storage-conditions-on-the-calorific-value-of-municipal-solid-waste
#18
Antony Mutua Nzioka, Hyeon-Uk Hwang, Myung-Gyun Kim, Cao Zheng Yan, Chang-Soo Lee, Young-Ju Kim
Storage conditions are considered to be an important factor as far as waste material characteristics are concerned. This experimental investigation was conducted using municipal solid waste (MSW) with a high moisture content and varying composition of organic waste. The objective of this study was to understand the effect of storage conditions and temperature on the moisture content and calorific value of the waste. Samples were subjected to two different storage conditions and investigated at specified temperatures...
June 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28653582/waste-management-outlook-for-mountain-regions-sources-and-solutions
#19
Larisa Semernya, Aditi Ramola, Björn Alfthan, Claudia Giacovelli
Following the release of the global waste management outlook in 2015, the United Nations Environment Programme (UN Environment), through its International Environmental Technology Centre, is elaborating a series of region-specific and thematic waste management outlooks that provide policy recommendations and solutions based on current practices in developing and developed countries. The Waste Management Outlook for Mountain Regions is the first report in this series. Mountain regions present unique challenges to waste management; while remoteness is often associated with costly and difficult transport of waste, the potential impact of waste pollutants is higher owing to the steep terrain and rivers transporting waste downstream...
June 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28617191/operator-models-for-delivering-municipal-solid-waste-management-services-in-developing-countries-part-b-decision-support
#20
Reka Soós, Andrew D Whiteman, David C Wilson, Cosmin Briciu, Sofia Nürnberger, Barbara Oelz, Ellen Gunsilius, Ekkehard Schwehn
This is the second of two papers reporting the results of a major study considering 'operator models' for municipal solid waste management (MSWM) in emerging and developing countries. Part A documents the evidence base, while Part B presents a four-step decision support system for selecting an appropriate operator model in a particular local situation. Step 1 focuses on understanding local problems and framework conditions; Step 2 on formulating and prioritising local objectives; and Step 3 on assessing capacities and conditions, and thus identifying strengths and weaknesses, which underpin selection of the operator model...
June 1, 2017: Waste Management & Research
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