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311.
用陶瓷膜做滤材处理含油废水的研究 总被引:6,自引:0,他引:6
本实验是以无机膜之一的陶瓷做滤材,对含油污水处理进行研究.探讨了含油种类与膜的性质、含油浓度和透过速度的关系及反冲洗对透过速度的影响.通过实验证明:轻质油比重油的透过速度大;油水中含油浓度对透过浓度影响不大;反冲洗会使透过速度得到恢复;浊度去除率可达96%以上,陶瓷膜超滤法处理含油废水是可行的. 相似文献
312.
Walter E. Hecox 《Resources Policy》1984,10(1):37-51
Regions under stress from rapid development require comprehensive planning and management tools, capable of identifying the pace, location and magnitude of growth and assessing social, economic and environmental impacts. Northwest Colorado, endowed with massive rich deposits of oil shale, went through a boom-bust cycle of growth during the early 1980s as US interest in synthetic fuels peaked and then rapidly declined. An innovative resource information system has been developed which has assisted the region in anticipating growth and modifying its consequences. This article reviews the organization and development of the Colorado Resource Information System (CRIS) and evaluates its role and impact in the decisionmaking process. Experience shows that regions which develop and maintain planning and information tools can have significant influence on economic development. 相似文献
313.
In its role as a competitive producer of phosphate and potash Jordan has not suffered noticeably from the Resource Curse over the past 50 years. However, the effects on its economy because of its geographical proximity to major oil-producing states have been both positive and negative. It is arguable that an oil resource curse has applied to Jordan. 相似文献
314.
简要归纳了突变模型的特征和突变理论的应用方式,重点综述了突变理论在火灾科学中的应用情况,概括了突变理论在火灾科学中三个应用特点。针对具体油气爆炸实验数据,利用随机突变理论,对油气爆炸的突变模式进行了初步研究,说明了建立统计突变模型的可行性。最后指出了突变理论应用于火灾科学的未来研究方向。 相似文献
315.
The effects of Orimulsion and Fuel Oil #6 on the hatching success of copepod resting eggs in the seabed of Tampa Bay,Florida 总被引:3,自引:0,他引:3
A 3-month microcosm study was conducted to observe the potential effects of two fuels, Orimulsion and Fuel Oil #6, on the hatching success of copepod resting eggs in the seabed of Tampa Bay, Florida. Microcosms were dosed with one of five hydrocarbon treatments via hydrocarbon-coated sand and compared with controls. Acartia tonsa eggs were nonviable in all treatments after only a few weeks of incubation, as evidenced by a marked decline in the abundance of nauplii. However, there was no evidence that exposure to simulated spills of 700 or 7000 ppm of either fuel led to significant increases in resting egg mortality as compared with controls. The results further indicate that, regardless of environmental conditions, resting eggs of A. tonsa do not remain viable in the sediment for extended periods of time. 相似文献
316.
Under the United States Oil Pollution Act of 1990, natural resource trustees are charged with assessing natural resource impacts
due to an oil spill and determining the type and amount of natural resource restoration that will compensate the public for
the impacts. Habitat equivalency analysis is a technique through which the impacts due to the spill and the benefits of restoration
are quantified; both are quantified as habitat resources and associated ecological services. The goal of the analysis is to
determine the amount of restoration such that the services lost are offset by services provided by restoration.
In this paper, we first describe the habitat equivalency analysis framework. We then present an oil spill case from coastal
Louisiana, USA, where the framework was applied to quantify resource impacts and determine the scale of restoration. In the
Louisiana case, the trustees assessed impacts for oiled salt marsh and direct mortality to finfish, shellfish, and birds.
The restoration project required planting salt-marsh vegetation in dredge material that was deposited on a barrier island.
Using the habitat equivalency analysis framework, it was determined that 7.5 ha of the dredge platform should be planted as
salt marsh. The planted hectares will benefit another 15.9 ha through vegetative spreading resulting in a total of 23.4 ha
that will be enhanced or restored as compensation for the natural resource impacts. 相似文献
317.
硫化亚铁引发储油罐火灾危险性的研究 总被引:10,自引:1,他引:9
笔者通过模拟储油罐中硫化亚铁的生成方式 ,分析和研究了硫化氢气体与氢氧化铁、三氧化二铁和四氧化三铁反应 ,生成的硫化亚铁的氧化倾向性 ,并采用自然氧化绝热装置 ,测定了硫化亚铁的温度变化曲线。实验研究结果表明 ,不同方式生成的硫化亚铁 ,其氧化性不同 ,自燃性也不同 ,均有较显著差异。硫化亚铁的温度变化曲线表明 ,氧化反应随着时间增加 ,其他应进行得越来越快 ,将会造成热量的聚集 ,使油品温度快速上升 ,导致油品自燃和储罐发生着火爆炸。实验研究证明 ,硫化亚铁氧化反应放出热量是构成油罐着火危险性的最大因素。 相似文献
318.
Can China control the side effects of motor vehicle growth? 总被引:2,自引:0,他引:2
Michael P. Walsh 《Natural resources forum》2007,31(1):21-34
Motor vehicle growth in China is the fastest in the world. This is placing great strain on the urban environment and causing a rapid increase in oil imports and motor vehicle carbon dioxide emissions. To deal with the environmental and health effects of air pollution, China has adopted a strong motor vehicle pollution control programme and imposed limits on fuel consumption of new light duty vehicles. The article will review these problems and programmes. Special focus will be given to the need to reduce sulphur levels in both gasoline and diesel fuel. 相似文献
319.
320.
Decision Support System for Managing Oil Spill Events 总被引:3,自引:0,他引:3
The Mediterranean environment is exposed to various hazards, including oil spills, forest fires, and floods, making the development of a decision support system (DSS) for emergency management an objective of utmost importance. The present work presents a complete DSS for managing marine pollution events caused by oil spills. The system provides all the necessary tools for early detection of oil-spills from satellite images, monitoring of their evolution, estimation of the accident consequences and provision of support to responsible Public Authorities during clean-up operations. The heart of the system is an image processing–geographic information system and other assistant individual software tools that perform oil spill evolution simulation and all other necessary numerical calculations as well as cartographic and reporting tasks related to a specific management of the oil spill event. The cartographic information is derived from the extant general maps representing detailed information concerning several regional environmental and land-cover characteristics as well as financial activities of the application area. Early notification of the authorities with up-to-date accurate information on the position and evolution of the oil spill, combined with the detailed coastal maps, is of paramount importance for emergency assessment and effective clean-up operations that would prevent environmental hazard. An application was developed for the Region of Crete, an area particularly vulnerable to oil spills due to its location, ecological characteristics, and local economic activities. 相似文献