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1.
Li LY Ohtsubo M Higashi T Yamaoka S Morishita T 《Waste management (New York, N.Y.)》2007,27(7):932-945
In Japan the volume of municipal solid waste is reduced by incineration, with fly ash and bottom ash disposed in controlled landfills. The leachability of anions and heavy metal cations, Zn, Cu and Pb, from MSW fly ash and bottom ash at different pHs was examined using batch- and column-leaching tests. The MSW ashes had a high capacity for neutralizing acids. Behaviour during leaching depended on the pH of the solution. For the volumes applied, the leachabilities of MSW fly ash were very similar at pHs from 3 to 6. Due to its amphoteric nature, Pb is leachable at pHs of approximately 10 or more, with leachate concentrations of about 3 and 3-10mg/L for the fly ash and bottom ash, respectively, much higher than for Zn and Cu. Pb concentrations for most leaching solutions were 1 and 3mg/L for the fly ash and bottom ash, respectively. Zn, and Cu leached at low concentrations for solutions of pH 3-6. Na and K ions leached at high concentrations of approximately 5000 mg/L in the first batch leaching test, decreasing to 10mg/L by the fourth leach. Ca and Mg ions leached more gradually than Na and K. Cl(-) and SO(4)(2+) ions were the major anions in the MSW ash. The high pH and cation leaching are expected to have negative impacts on the performance of clay liners. 相似文献
2.
<正>建设生态文明,必须在节约能源资源和保护生态环境方面形成相应的产业结构、增长方式、消费模式。消费是"人的本质"的表现和确认,也是人的本质不断升华、不断发展的重要条件。此前全球金融危机的一个深刻结论是,传统消费模式是一条资源环境难以支撑的"负重之路"。因此,转变经济发展方式和消费方式成为当下生态文明建设的重要环节。曾建平教授所著的《自然之境:"消费—生态"悖论的伦理探究》(中国人民大学出版社2018年 相似文献
3.
Gabriela E. Jones Hatem A. Mousa Helen Rowley Peter Houtman Pradeep C. Vasudevan 《黑龙江环境通报》2015,35(13):1336-1341
4.
Paul Burrows Charles K Rowley David Owen 《Journal of Environmental Economics and Management》1974,1(3):202-218
The recent dispute over the impact of economic growth on the environment relative to the (predicted) physical limits imposed by the ecological system hinges on the role of pollution-preventive technology. This paper attempts a cost-effectiveness evaluation of alternative methods of preventing the largest source of marine oil pollution. The first major result of the analysis is that the technology which minimizes internal costs (and is favored by the oil companies) does not minimize the social costs of pollution prevention. The second is that relative to the price of oil the cost of pollution-prevention processes is very small indeed. 相似文献
5.
Citizen participation in disaster recovery projects and programmes in rural communities: a comparison of the Haiti earthquake and Hurricane Katrina
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This study investigates predictors of local participation in recovery projects and programmes following Hurricane Katrina in the United States in 2005 and the earthquake in Haiti in 2010. Using two sets of survey data, it examines whether disaster impacts and social capital (social trust and civic engagement) are associated with disaster recovery participation and compares predictors of such engagement in the two locations. Multivariate logistic regression results reveal that physical injuries, limited community mobility, and government trust increase recovery participation in Haiti (n=278), whereas emotional distress and homeownership decrease it. On the Gulf Coast of the US (n=259), physical injuries and higher civic engagement augment recovery participation, while homeownership and age reduce it. The confounding factors of national contexts and post‐disaster time frames might explain the differences in the results. The discussion addresses the relation between country‐specific vulnerability and recovery participation and suggests implications for policy and practice to improve local citizens’ capabilities to participate in sustainable recovery processes. 相似文献
6.
M. G. Brooked I. Rowley M. Adams P. R. Baverstock 《Behavioral ecology and sociobiology》1990,26(3):191-199
Summary Paternity likelihood was tested in a population of splendid fairy-wrens Malurus splendens by allozyme electrophoresis. A total of 91 offspring of 24 dams and 37 putative sires were typed at 10 polymorphic loci. All young were compatible with their dams but at least 65% were not fathered by any of the males in their group. A long-term study of this wren population has shown that the males are sedentary, show little evidence of dispersal and help care for the nestlings and fledglings in their group. Had the senior male sired all the offspring in his group, there would have been a high incidence of close inbreeding. The promiscuous mating system demonstrated here would reduce the level of inbreeding in the population but still allow individuals the security of group-living in a stable year-round territory.
Offprint requests to: M.G. Brooker 相似文献
7.
R. J. Rowley 《Marine Biology》1989,100(4):485-494
I sampled recruitment of very small sea urchins (Strongylocentrotus spp.) by using the anesthetic magnesium chloride to remove individuals from substrata collected in sea-urchin barren grounds (barrens) and kelp beds at Naples Reef near Santa Barbara, California, USA. Preliminary sampling found low numbers of newly settled individuals(<0.6 mm test diam) from April–July in 1984 and 1985, and in April, 1986. In early May, 1986, I found many newly settled seaurchins (0.3 to 0.6 mm, 5 to 17 d old), and I compared the densities of the cohort on several types of natural substrata in barrens and kelp-bed habitats. Newly settled individuals of both purple sea urchins (S. purpuratus) and red sea urchins (S. franciscanus) were present in similar, high densities (1 000 S. purpuratus m-2) on foliose red algal turf, a dominant substratum ofthe kelp bed, and on crustose coralline algae, the dominant substratum of an adjacent barrens. Larvae of S. purpuratus reared and tested in the laboratory showed high rates of settlement on both red algal turf and on crustose coralline algae, but significantly lower rates on rock. Larvae also settled in response to a partiallypurified extract of coralline algae. The reduced settlement on natural rock surfaces relative to either algal treatment and the significant settlement in response to the extract of coralline algae indicate that larvae discriminate between natural substrata and probably respond to a settlement cue other than, or in addition to, a simple microbial (bacterial) film. The similar densities of young recruits of S. purpuratus on dominant substrata of barrens and kelp bed show that, at least in this case, differential settlement cannot explain the high densities of sea urchins in the barrens habitat. Movement between barrens and kelp bed is unlikely given the small sizes of the newly recruited sea urchins relative to the large distances often involved. Reduced post-settlement mortality of newly settled individuals in the barrens remains the most likely mechanism leading to the higher densities of sea urchins in barrens relative to kelp-bed habitats. 相似文献
8.
In an emergency, the international community responds to the immediate health needs of refugees through the establishment of action-oriented, life-saving services. Healthcare delivery is often managed with limited, if any, coordination with local health management structures. In situations where refugees remain in the host country for many years, sustainability issues inevitably arise. Refugee-hosting governments may ultimately be called upon to assume the management and funding of refugee services. Planning for service integration, while protecting against declines in service quality, is a challenge in the typically resource-poor host environments. This paper discusses these issues by presenting the experience of the West Nile districts in northern Uganda, and describes quality design as a relevant planning methodology. Quality design is a systematic planning approach that documents and directly incorporates the service users' self-defined expectations and needs. 相似文献
9.
Kusin Faradiella Mohd Hasan Sharifah Nur Munirah Syed Molahid Verma Loretta M. Yusuff Ferdaus Mohamat Jusop Shamsuddin 《Environmental science and pollution research international》2023,30(9):22188-22210
Environmental Science and Pollution Research - Mining waste that is rich in iron-, calcium- and magnesium-bearing minerals can be a potential feedstock for sequestering CO2 by mineral carbonation.... 相似文献
10.
Loretta Rowley Kevin A. Johnson 《Environmental Communication: A Journal of Nature and Culture》2018,12(6):825-839
The documentary film Blackfish has made a splash at the box office, impacting millions of viewers and prompting calls to legislatively prohibit orcas from being held in captive environments. This essay analyzes Blackfish in terms of its anthropomorphic communication techniques that attribute human qualities to orcas. We introduce the term “anthropomorphic anthropocentrism” to argue that the anthropomorphic construction of orcas in Blackfish may well be a story that is more about what it means to be human than a story about what it means to be orca. Furthermore, we explain the importance of anthropomorphic anthropocentrism as an analytical tool that navigates environmental and ecological frameworks. We conclude that anthropomorphic anthropocentrism’s analysis of anthropomorphic rhetoric and the human epistemological assumptions it reflects, when taken together, offer significant insights into the ways environmental communication creates and/or disrupts human–nature relationships. 相似文献