| 1. |
- Abarca-Guerrero, Lilliana, et al.
(författare)
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Desafíos en la gestión de residuos sólidos para las ciudades de países en desarrollo [Solid waste management challenges for cities in developing countries]
- 2015
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Ingår i: Tecnología en Marcha. - 0379-3982 .- 2215-3241. ; 28:2, s. 141-168
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Tidskriftsartikel (refereegranskat)abstract
- Solid waste management is a challenge for the cities' authorities in developing countries mainly due to the increasing generation of waste, the burden posed on the municipal budget as a result of the high costs associated to its management, the lack of understanding over a diversity of factors that affect the different stages of waste management and linkages necessary to enable the entire handling system functioning. An analysis of literature on the work done and reported mainly in publications from 2005 to 2011, related to waste management in developing countries, showed that few articles give quantitative information. The analysis was conducted in two of the major scientific journals, Waste Management Journal and Waste Management and Research. The objective of this research was to determine the stakeholders' action/behavior that have a role in the waste management process and to analyze influential factors on the system, in more than thirty urban areas in 22 developing countries in 4 continents. A combination of methods was used in this study in order to assess the stakeholders and the factors influencing the performance of waste management in the cities. Data was collected from scientific literature, existing data bases, observations made during visits to urban areas, structured interviews with relevant professionals, exercises provided to participants in workshops and a questionnaire applied to stakeholders. Descriptive and inferential statistic methods were used to draw conclusions. The outcomes of the research are a comprehensive list of stakeholders that are relevant in the waste management systems and a set of factors that reveal the most important causes for the systems' failure. The information provided is very useful when planning, changing or implementing waste management systems in cities.
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| 2. |
- Alriksson, Stina, et al.
(författare)
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Key Areas of Environmental Entrepreneurships and Relevant Legal, Finacial and Organizational Framework
- 2006. - Alriksson, S., Hakuli, M., Helo, P., Hogland, W., Kekäle, T., Kohtamäki, M, Marques, M., Paajaste, K., Peltoniemi, J., and Peura, P., (eds)
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Bok (övrigt vetenskapligt/konstnärligt)
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| 3. |
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| 4. |
- Bengtsson, Lars, et al.
(författare)
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Water balance for landfills of different age
- 1994
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Ingår i: Journal of Hydrology. - 0022-1694 .- 1879-2707. ; 158:3-4, s. 203-217
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Tidskriftsartikel (refereegranskat)abstract
- Water-related processes in landfills are discussed with emphasis on internal processes such as field capacity, moisture variation in time and space, and macropore flow. Runoff production and evaporation from landfills in Sweden of different age are investigated. It is clarified in what ways and for how long a closed municipal landfill differs from an ordinary land area from a hydrological point of view.
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| 5. |
- Berg, Jørn. E, et al.
(författare)
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Hvorfor grave ut "gammel moro"?
- 2009
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Ingår i: Kretsløpet - Tidsskrift for avfall og gjenvinning. ; dec:6, s. 25-27
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 7. |
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| 8. |
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| 9. |
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| 10. |
- Bhatnagar, Amit, et al.
(författare)
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An overview of the modification methods of activated carbon for its water treatment applications
- 2013
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Ingår i: Chemical Engineering Journal. - : Elsevier BV. - 1385-8947 .- 1873-3212. ; 219, s. 499-511
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Forskningsöversikt (refereegranskat)abstract
- Activated carbon has been recognized as one of the oldest and widely used adsorbent for the water and wastewater treatment for removing organic and inorganic pollutants. The application of activated carbon in adsorption process is mainly depends on the surface chemistry and pore structure of porous carbons. The method of activation and the nature of precursor used greatly influences surface functional groups and pore structure of the activated carbon. Therefore, the main focus of researchers is to develop or modifies the activation/treatment techniques in an optimal manner using appropriate precursors for specific pollutants. In recent years, emphasis is given to prepare the surface modified carbons using different procedures to enhance the potential of activated carbon for specific contaminants. Various methods such as, acid treatment, base treatment, impregnation treatment, ozone treatment, surfactant treatment, plasma treatment and microwave treatment have been studied to develop surface modified activated carbons. In this paper, these modification methods have been reviewed and the potential of surface modified activated carbons towards water treatment has been discussed. This review article is aimed at providing precise information on efforts made by various researchers in the field of surface modification of activated carbon for water pollution control. (C) 2012 Elsevier B.V. All rights reserved.
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