Base de dados : MEDLINE
Pesquisa : N06.850.860.510.900.600.400 [Categoria DeCS]
Referências encontradas : 636 [refinar]
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[PMID]:29232709
[Au] Autor:Chakona G; Shackleton CM
[Ad] Endereço:Department of Environmental Science, Rhodes University, Grahamstown, South Africa.
[Ti] Título:Local setting influences the quantity of household food waste in mid-sized South African towns.
[So] Source:PLoS One;12(12):e0189407, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The world faces a food security challenge with approximately 868 million people undernourished and about two billion people suffering from the negative health consequences of micronutrient deficiencies. Yet, it is believed that at least 33% of food produced for human consumption is lost or wasted along the food chain. As food waste has a negative effect on food security, the present study sought to quantify household food waste along the rural-urban continuum in three South African mid-sized towns situated along an agro-ecological gradient. We quantified the types of foods and drinks that households threw away in the previous 48 hours and identified the causes of household food waste in the three sites. More households wasted prepared food (27%) than unprepared food (15%) and drinks (8%). However, households threw away greater quantities of unprepared food in the 48-hour recall period (268.6±610.1 g, 90% confidence interval: 175.5 to 361.7 g) compared to prepared food (121.0±132.4 g, 90% confidence interval: 100.8 to 141.3 g) and drinks (77.0±192.5 ml, 90% confidence interval: 47.7 to 106.4 ml). The estimated per capita food waste (5-10 kg of unprepared food waste, 3-4 kg of prepared food waste and 1-3 litres of drinks waste per person per year) overlaps with that estimated for other developing countries, but lower than most developed countries. However, the estimated average amount of food waste per person per year for this study (12.35 kg) was higher relative to that estimated for developing countries (8.5 kg per person per year). Household food waste was mainly a result of consumer behavior concerning food preparation and storage. Integrated approaches are required to address this developmental issue affecting South African societies, which include promoting sound food management to decrease household food waste. Also, increased awareness and educational campaigns for household food waste reduction interventions are discussed.
[Mh] Termos MeSH primário: Alimentos
Lixo
[Mh] Termos MeSH secundário: Adulto
Feminino
Seres Humanos
Masculino
África do Sul
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180104
[Lr] Data última revisão:
180104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171213
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189407


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[PMID]:28460879
[Au] Autor:Beeharry YD; Bekaroo G; Bokhoree C; Phillips MR; Jory N
[Ad] Endereço:University of Technology, Mauritius, La Tour Koenig, Pointe aux Sables, Mauritius. Electronic address: y.beeharry@umail.utm.ac.mu.
[Ti] Título:Sustaining anti-littering behavior within coastal and marine environments: Through the macro-micro level lenses.
[So] Source:Mar Pollut Bull;119(2):87-99, 2017 Jun 30.
[Is] ISSN:1879-3363
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Being regarded as a problem of global dimensions, marine litter has been a growing concern that affects human beings, wildlife and the economic health of coastal communities to varying degrees. Due to its involvement with human behavior, marine littering has been regarded as a cultural matter encompassing macro and micro level aspects. At the micro or individual level, behavior and behavioral motivation of an individual are driven by perception of that person while at the macro or societal level, aspects including policies and legislations influence behavior. This paper investigates marine littering through the macro-micro level lenses in order to analyze and recommend how anti-littering behavior can be improved and sustained. Using Coleman's model of micro-macro relations, research questions are formulated and investigated through a social survey. Results showed important differences in perceptions among participating groups and to address key issues, potential actions are proposed along with a framework to sustain anti-littering behavior.
[Mh] Termos MeSH primário: Lixo
Opinião Pública
[Mh] Termos MeSH secundário: Conservação dos Recursos Naturais
Meio Ambiente
Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171220
[Lr] Data última revisão:
171220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE


  3 / 636 MEDLINE  
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[PMID]:28865905
[Au] Autor:Guo Q; Dai X
[Ad] Endereço:College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; UNEP - Tongji Institute of Environment for Sustainable Development, Shanghai 200092, China.
[Ti] Título:Analysis on carbon dioxide emission reduction during the anaerobic synergetic digestion technology of sludge and kitchen waste: Taking kitchen waste synergetic digestion project in Zhenjiang as an example.
[So] Source:Waste Manag;69:360-364, 2017 Nov.
[Is] ISSN:1879-2456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:With the popularization of municipal sewage treatment facilities, the improvement of sewage treatment efficiency and the deepening degree of sewage treatment, the sludge production of sewage plant has been sharply increased. Carbon emission during the process of municipal sewage treatment and disposal has become one of the important sources of greenhouse gases that cause greenhouse effect. How to reduce carbon dioxide emissions during sewage treatment and disposal process is of great significance for reducing air pollution. Kitchen waste and excess sludge, as two important organic wastes, once uses anaerobic synergetic digestion technology in the treatment process can on the one hand, avoid instability of sludge individual anaerobic digestion, improve sludge degradation rate and marsh gas production rate, and on the other hand, help increase the reduction of carbon dioxide emissions to a great extent. The paper uses material balance method, analyzes and calculates the carbon dioxide emissions from kitchen waste and sludge disposed by the anaerobic synergetic digestion technology, compares the anaerobic synergetic digestion technology with traditional sludge sanitary landfill technology and works out the carbon dioxide emission reductions after synergetic digestion. It takes the kitchen waste and sludge synergetic digestion engineering project of Zhenjiang city in Jiangsu province as an example, makes material balance analysis using concrete data and works out the carbon dioxide daily emission reductions. The paper analyzes the actual situation of emission reduction by comparing the data, and found that the synergetic digestion of kitchen waste and sludge can effectively reduce the carbon dioxide emission, and the reduction is obvious especially compared with that of sludge sanitary landfill, which has a certain effect on whether to promote the use of the technology.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/análise
Dióxido de Carbono/análise
Lixo
Eliminação de Resíduos Líquidos/métodos
[Mh] Termos MeSH secundário: Anaerobiose
China
Metano
Esgotos
Gerenciamento de Resíduos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Sewage); 142M471B3J (Carbon Dioxide); OP0UW79H66 (Methane)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171108
[Lr] Data última revisão:
171108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170904
[St] Status:MEDLINE


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[PMID]:28818397
[Au] Autor:Edwards J; Othman M; Crossin E; Burn S
[Ad] Endereço:Department of Chemical and Environmental Engineering, RMIT University, Melbourne 3000, Australia. Electronic address: s3137258@student.rmit.edu.au.
[Ti] Título:Life cycle inventory and mass-balance of municipal food waste management systems: Decision support methods beyond the waste hierarchy.
[So] Source:Waste Manag;69:577-591, 2017 Nov.
[Is] ISSN:1879-2456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:When assessing the environmental and human health impact of a municipal food waste (FW) management system waste managers typically rely on the principles of the waste hierarchy; using metrics such as the mass or rate of waste that is 'prepared for recycling,' 'recovered for energy,' or 'sent to landfill.' These metrics measure the collection and sorting efficiency of a waste system but are incapable of determining the efficiency of a system to turn waste into a valuable resource. In this study a life cycle approach was employed using a system boundary that includes the entire waste service provision from collection to safe end-use or disposal. A life cycle inventory of seven waste management systems was calculated, including the first service wide inventory of FW management through kitchen in-sink disposal (food waste disposer). Results describe the mass, energy and water balance of each system along with key emissions profile. It was demonstrated that the energy balance can differ significantly from its' energy generation, exemplified by mechanical biological treatment, which was the best system for generating energy from waste but only 5 best for net-energy generation. Furthermore, the energy balance of kitchen in-sink disposal was shown to be reduced because 31% of volatile solids were lost in pre-treatment. The study also confirmed that higher FW landfill diversion rates were critical for reducing many harmful emissions to air and water. Although, mass-balance analysis showed that the alternative end-use of the FW material may still contain high impact pollutants.
[Mh] Termos MeSH primário: Alimentos
Resíduos Sólidos/análise
Gerenciamento de Resíduos/métodos
[Mh] Termos MeSH secundário: Lixo
Resíduos Sólidos/classificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Solid Waste)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171108
[Lr] Data última revisão:
171108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170819
[St] Status:MEDLINE


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[PMID]:28797626
[Au] Autor:Portman ME; Brennan RE
[Ad] Endereço:Technion - Israel Institute of Technology, Faculty of Architecture and Town Planning, Technion City, Haifa 3200003, Israel. Electronic address: mep@technion.ac.il.
[Ti] Título:Marine litter from beach-based sources: Case study of an Eastern Mediterranean coastal town.
[So] Source:Waste Manag;69:535-544, 2017 Nov.
[Is] ISSN:1879-2456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Marine litter has been a serious and growing problem for some decades now. Yet, there is still much speculation among researchers, policy makers and planners about how to tackle marine litter from land-based sources. This paper provides insights into approaches for managing marine litter by reporting and analyzing survey results of litter dispersal and makeup from three areas along an Arab-Israeli coastal town in view of other recent studies conducted around the Mediterranean Sea. Based on our results and analysis, we posit that bathing beach activities should be a high priority for waste managers as a point of intervention and beach-goers must be encouraged to take a more active role in keeping beaches clean. Further, plastic fragments on the beach should be targeted as a first priority for prevention (and cleanup) of marine litter with plastic bottle caps being a high priority to be targeted among plastics. More survey research is needed on non-plastic litter composition for which amounts and geographic dispersal in the region vary greatly from place to place along Mediterranean shores. In general, findings of this study lead us to recommend exploring persuasive beach trash can design coupled with greater enforcement for short term waste management intervention while considering the local socio-economic and institutional context further for long-term efforts.
[Mh] Termos MeSH primário: Monitoramento Ambiental/métodos
Resíduos/análise
Poluentes da Água/análise
[Mh] Termos MeSH secundário: Praias/estatística & dados numéricos
Lixo
Mar Mediterrâneo
Papel
Plásticos
Gerenciamento de Resíduos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plastics); 0 (Waste Products); 0 (Water Pollutants)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171108
[Lr] Data última revisão:
171108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170812
[St] Status:MEDLINE


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[PMID]:28764129
[Au] Autor:Wei H; Wang J; Hassan M; Han L; Xie B
[Ad] Endereço:Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, 500 Dong Chuan Road, Shanghai 200241, PR China.
[Ti] Título:Anaerobic ammonium oxidation-denitrification synergistic interaction of mature landfill leachate in aged refuse bioreactor: Variations and effects of microbial community structures.
[So] Source:Bioresour Technol;243:1149-1158, 2017 Nov.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In this work, anammox-denitrification process was verified by N stable isotopic tracing methods and variations and effects of microbial community structures were studied using Illumina MiSeq sequencing and Quantitative Polymerase Chain Reaction (qPCR). The results showed that higher nitrogen removal efficiency and richer microbial consortia was observed at hydraulic loading rate (HLR) of 15L/m ·d, BOD /TN ratio of 0.4:1, respectively. Proteobacteria, Chloroflexi, Acidobacteria and Firmicutes were the dominant phyla in the anamox-denitrification biomass. The number of amx gene changed significantly during the HLR downshift and BOD /TN ratio upshift period. The obtained results enhance understanding regarding the microbial community structures of anammox-denitrification bacteria in aged refuse, leading to a more effective controlling of anammox-denitrification process.
[Mh] Termos MeSH primário: Reatores Biológicos
Desnitrificação
Poluentes Químicos da Água
[Mh] Termos MeSH secundário: Compostos de Amônio
Lixo
Nitrogênio
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Ammonium Compounds); 0 (Water Pollutants, Chemical); N762921K75 (Nitrogen)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170803
[St] Status:MEDLINE


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[PMID]:28719817
[Au] Autor:Zhao J; Gui L; Wang Q; Liu Y; Wang D; Ni BJ; Li X; Xu R; Zeng G; Yang Q
[Ad] Endereço:College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China. Electronic address: zhaojianwei1213@yahoo.com.
[Ti] Título:Aged refuse enhances anaerobic digestion of waste activated sludge.
[So] Source:Water Res;123:724-733, 2017 Oct 15.
[Is] ISSN:1879-2448
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In this work, a low-cost alternative approach (i.e., adding aged refuse (AR) into waste activated sludge) to significantly enhance anaerobic digestion of sludge was reported. Experimental results showed that with the addition dosage of AR increasing from 0 to 400 mg/g dry sludge soluble chemical oxygen demand (COD) increased from 1150 to 5240 mg/L at the digestion time of 5 d, while the maximal production of volatile fatty acids (VFA) increased from 82.6 to 183.9 mg COD/g volatile suspended solids. Although further increase of AR addition decreased the concentrations of both soluble COD and VFA, their contents in these systems with AR addition at any concentration investigated were still higher than those in the blank, which resulted in higher methane yields in these systems. Mechanism studies revealed that pertinent addition of AR promoted solubilization, hydrolysis, and acidogenesis processes and did not affect methanogenesis significantly. It was found that varieties of enzymes and anaerobes in AR were primary reason for the enhancement of anaerobic digestion. Humic substances in AR benefited hydrolysis and acidogenesis but inhibited methanogenesis. The effect of heavy metals in AR on sludge anaerobic digestion was dosage dependent. Sludge anaerobic digestion was enhanced by appropriate amounts of heavy metals but inhibited by excessive amounts of heavy metals. The relative abundances of microorganisms responsible for sludge hydrolysis and acidogenesis were also observed to be improved in the system with AR addition, which was consistent with the performance of anaerobic digestion.
[Mh] Termos MeSH primário: Bactérias Anaeróbias
Reatores Biológicos
Lixo
Esgotos
[Mh] Termos MeSH secundário: Anaerobiose
Ácidos Graxos Voláteis/metabolismo
Metano
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fatty Acids, Volatile); 0 (Sewage); OP0UW79H66 (Methane)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170719
[St] Status:MEDLINE


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[PMID]:28709065
[Au] Autor:Iaquaniello G; Centi G; Salladini A; Palo E; Perathoner S; Spadaccini L
[Ad] Endereço:Processi Innovativi, Via Guido Polidoro 1, 67100 L'Aquila, Italy; KT - Kinetics Technology S.p.A., Viale Castello della Magliana 27, 00148 Rome, Italy.
[Ti] Título:Waste-to-methanol: Process and economics assessment.
[So] Source:Bioresour Technol;243:611-619, 2017 Nov.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The waste-to-methanol (WtM) process and related economics are assessed to evidence that WtM is a valuable solution both from economic, strategic and environmental perspectives. Bio-methanol from Refuse-derived-fuels (RdF) has an estimated cost of production of about 110€/t for a new WtM 300t/d plant. With respect to waste-to-energy (WtE) approach, this solution allows various advantages. In considering the average market cost of methanol and the premium as biofuel, the WtM approach results in a ROI (Return of Investment) of about 29%, e.g. a payback time of about 4years. In a hybrid scheme of integration with an existing methanol plant from natural gas, the cost of production becomes a profit even without considering the cap for bio-methanol production. The WtM process allows to produce methanol with about 40% and 30-35% reduction in greenhouse gas emissions with respect to methanol production from fossil fuels and bio-resources, respectively.
[Mh] Termos MeSH primário: Metanol
Eliminação de Resíduos
[Mh] Termos MeSH secundário: Combustíveis Fósseis
Lixo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fossil Fuels); Y4S76JWI15 (Methanol)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170715
[St] Status:MEDLINE


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[PMID]:28651133
[Au] Autor:Sadhukhan J; Martinez-Hernandez E
[Ad] Endereço:Centre for Environmental and Sustainability, University of Surrey, GU2 7XH, UK. Electronic address: jhumasadhukhan@gmail.com.
[Ti] Título:Material flow and sustainability analyses of biorefining of municipal solid waste.
[So] Source:Bioresour Technol;243:135-146, 2017 Nov.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This paper presents material flow and sustainability analyses of novel mechanical biological chemical treatment system for complete valorization of municipal solid waste (MSW). It integrates material recovery facility (MRF); pulping, chemical conversion; effluent treatment plant (ETP), anaerobic digestion (AD); and combined heat and power (CHP) systems producing end products: recyclables (24.9% by mass of MSW), metals (2.7%), fibre (1.5%); levulinic acid (7.4%); recyclable water (14.7%), fertiliser (8.3%); and electricity (0.126MWh/t MSW), respectively. Refuse derived fuel (RDF) and non-recyclable other waste, char and biogas from MRF, chemical conversion and AD systems, respectively, are energy recovered in the CHP system. Levulinic acid gives profitability independent of subsidies; MSW priced at 50Euro/t gives a margin of 204Euro/t. Global warming potential savings are 2.4 and 1.3kg CO equivalent per kg of levulinic acid and fertiliser, and 0.17kg CO equivalent per MJ of grid electricity offset, respectively.
[Mh] Termos MeSH primário: Biocombustíveis
Eliminação de Resíduos
Resíduos Sólidos
[Mh] Termos MeSH secundário: Lixo
Metais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biofuels); 0 (Metals); 0 (Solid Waste)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170627
[St] Status:MEDLINE


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[PMID]:28634496
[Au] Autor:Abubakar IR
[Ad] Endereço:College of Architecture and Planning, University of Dammam, P.O. Box 2397, Dammam 31451, Saudi Arabia.
[Ti] Título:Household Response to Inadequate Sewerage and Garbage Collection Services in Abuja, Nigeria.
[So] Source:J Environ Public Health;2017:5314840, 2017.
[Is] ISSN:1687-9813
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Provision of sanitation and garbage collection services is an important and yet challenging issue in the rapidly growing cities of developing countries, with significant human health and environmental sustainability implications. Although a growing number of studies have investigated the consequences of inadequate delivery of basic urban services in developing countries, few studies have examined how households cope with the problems. Using the Exit, Voice, Loyalty, and Neglect (EVLN) model, this article explores how households respond to inadequate sewerage and garbage collection services in Abuja, Nigeria. Based on a qualitative study, data were gathered from in-depth interviews with sixty households, complemented with personal observation. The findings from grounded analysis indicated that majority (62%) and about half (55%) of the respondents have utilized the informal sector for sewerage services and garbage collection, respectively, to supplement the services provided by the city. While 68% of the respondents reported investing their personal resources to improve the delivery of existing sewerage services, half (53%) have collectively complained to the utility agency and few (22%) have neglected the problems. The paper concludes by discussing the public health and environmental sustainability implications of the findings.
[Mh] Termos MeSH primário: Saúde Pública
Saneamento/normas
Gerenciamento de Resíduos/normas
[Mh] Termos MeSH secundário: Cidades
Lixo
Setor Informal
Nigéria
Esgotos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sewage)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171108
[Lr] Data última revisão:
171108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170622
[St] Status:MEDLINE
[do] DOI:10.1155/2017/5314840



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