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| Registros recuperados: 237 | |
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| Baumert, Jennifer; Bloodgood, Laura. |
| Countries introduce private sector participation into the water and wastewater utilities sector for a number of reasons. The introduction of a profit motive may increase efficiency as compared to public management of the water system, and private firms have been noted for customer service improvements. Financial considerations, including revenues from the sale of assets and reductions in the direct cost of providing water services, may also motivate governments to introduce private sector participation in this industry. However, because water is a basic human necessity, the introduction of private participation in this industry sector may raise social, economic, and national security concerns. Private participation in the global water and wastewater... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Water; Wastewater; Environmental services; Private sector participation; Public Economics. |
| Ano: 2004 |
URL: http://purl.umn.edu/15876 |
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| Windle, Jill; Rolfe, John; Brouwer, Roy. |
| Metrics for evaluating environmental trade-offs can be developed with varying levels of consistency across case study sites. A key issue is whether standard evaluation experiments can be conducted over multiple sites, or whether experiments have to be tailored to each case study application. To test how useful a consistent approach is, choice modelling (CM) has been used in a number of countries. Choice modelling assess the trade-offs households are prepared to make between water use restrictions, maintaining environmental conditions in waterways, and increased water costs. This research paper reports the results of the Queensland survey. The results show that it is not possible to downplay case study framing issues and that it is not appropriate to... |
| Tipo: Report |
Palavras-chave: Choice modelling; Water; Environment; Framing; Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/94818 |
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| Cantet, Franck; Hervio-heath, Dominique; Caro, A; Le Mennec, Cecile; Monteil, Caroline; Quemere, Catherine; Jolivet-gougeon, Anne; Colwell, Rita R.; Monfort, Patrick. |
| Vibrio parahaemolyticus, Vibrio vulnificus and Vibrio cholerae are human pathogens. Little is known about these Vibrio spp. in the coastal lagoons of France. The purpose of this study was to investigate their incidence in water, shellfish and sediment of three French Mediterranean coastal lagoons using the most probable number-polymerase chain reaction (MPN-PCR). In summer, the total number of V. parahaemolyticus in water, sediment, mussels and clams collected from the three lagoons varied from 1 to >1.1 x 10.3 MPN/l, 0.09 to 1.1 x 10.3 MPN/ml, 9 to 210 MPN/g and 1.5 to 2.1 MPN/g, respectively. In winter, all samples except mussels contained V. parahaemolyticus, but at very low concentrations. Pathogenic (tdh- or trh2-positive) V. parahaemolyticus were... |
| Tipo: Text |
Palavras-chave: Vibrio; Lagoons; Shellfish; Water; Sediment; Human pathogen. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00148/25890/23889.pdf |
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| Ghestem, J-p; Togola, A; Lardy-fontan, S; Guigues, N; Tixier, C; Larose, A; Miège, C. |
| The report prepared up within the AQUAREF program for 2015 provides recommendations to ensure the quality of passive sampling monitoring data. This type of sampling method could in the future be used in regulatory monitoring, and it seems necessary to prepare the tools, procedure that will be able to ensure the reliability of such data. The report first proposes an organization of the chain of responsibilities between: * the customer, * a pilot in charge of contacts with customer, sampling operations and of the the final report * and the laboratory which would be in charge of the analytical part on the passive sampling tool transmitted by the pilot. This organization is considered as an example. Other organizations are possible, provided they specify the... |
| Tipo: Text |
Palavras-chave: Échantillonnage passif; Contrôles qualité; Eau; Échange de données; Passive sampling; Quality control; Water; Data exchange. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00619/73077/72216.pdf |
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| Leidner, Andrew J.; Lacewell, Ronald D.; Rister, M. Edward; Woodard, Joshua D.; Sturdivant, Allen W.; White, Jacob M.. |
| This paper examines the optimal allocation of several inputs in the context of seawater desalination by reverse osmosis (RO) as a source of municipal (or commercial or industrial) water. A cost-minimization model is developed, a production function is estimated, and sensitivity analyses are conducted using the optimization model to investigate the effect of environmental conditions and economic factors on the optimal input portfolio and the cost of operating a modeled seawater desalination facility. The objectives of this paper are to better understand the effect on the seawater desalination facility’s costs and input portfolio from changes in water quality, membrane lifespan, daily operations schedule, and energy prices. Findings include that lower... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Water; Production; Seawater desalination; Resource /Energy Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/98827 |
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| Registros recuperados: 237 | |
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