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781.
782.
高压脉冲放电等离子体水处理中的放电方式及其应用 总被引:2,自引:0,他引:2
介绍了高压脉冲放电水处理技术的原理,综述了已有的放电方式,包括气相放电、液相放电和气液混合放电3种方式,介绍了近年来国内外对各放电方式的应用。讨论了各放电方式的特点,并提出该领域有待进行的研究工作。 相似文献
783.
高层建筑的消防设计审核是消防执法中的重要环节.以规范为指导,根据我国国情和具体工程设计情况,对高层建筑临时高压消防水系统中有关消防水泵房的出水管的布置、高位消防水箱的容积以及增压设施的设置几方面的规定进行了探讨. 相似文献
784.
785.
786.
In mine water pollution abatement, it is commonly assumed that known mine waste sites are the major pollution sources, thus neglecting the possibility of significant contribution from other old and diffuse sources within a catchment. We investigate the influence of different types of pollution source uncertainty on cost-effective allocation of abatement measures for mine water pollution. A catchment-scale cost-minimization model is developed and applied to the catchment of the river Dalälven, Sweden, in order to exemplify important effects of such source uncertainty. Results indicate that, if the pollution distribution between point and diffuse sources is partly unknown, downstream abatement measures, such as constructed wetlands, at given compliance boundaries are often cost-effective. If downstream abatement measures are not practically feasible, the pollution source distribution between point and diffuse mine water sources is critical for cost-effective solutions to abatement measure allocation in catchments. In contrast, cost-effective solutions are relatively insensitive to uncertainty in total pollutant discharge from mine water sources. 相似文献
787.
Managing disposal of water produced with petroleum in Kuwait 总被引:1,自引:0,他引:1
Disposal of water produced with petroleum has been of great interest in Kuwait for the last 20 years. The current problem arose when the Burgan oil field, which is the second largest field in the world, experienced successive increases in the water content of the produced oil. This study introduces a decision-making analysis of the considered alternatives for the disposal of the produced water. Four alternative solutions exist for the industry as practical solutions for the disposal of water produced in Kuwait. The first method utilizes a large number of pits to discharge water. The second alternative depends on discharging water into sealed pits. The third approach to dispose water is by injecting the water underground. The last method is similar to the previous one, but takes into consideration the recovery of reservoir pressure to maintain the rate of oil production. A questionnaire was distributed to 48 experts at the top management level of the petroleum companies and the governmental authority. The data collected considered cost, efficiency, and environmental parameters. Based on the data, a statistical analysis was conducted using the factor analysis method to reduce the number of investigated variables. The analysis concluded that the optimal solution is to use the effluent injection method to discharge water produced with oil in Burgan and similar fields in Kuwait. 相似文献
788.
Sustainable use of water and land resources requires that these scarce resources be appropriately allocated among various
competing human activities. Worldwide, there is a realization now that sustainable river basin management should be accorded
the highest priority, because it deals not only with technical, but also with ecological and socioeconomic aspects, and thus
calls for a multidisciplinary and integrated approach. However, most of the policy and planning documents have either remained
silent, or have made only implicit reference to the importance of environmental water demand (EWD) and its quantification.
Therefore, in the light of its importance, a methodology has been evolved in this article for quantifying EWD for various
forested areas in two distinctly different Indian river basins: Brahmani (humid zone) and Sabarmati (dry zone). The article
analyzes and discusses EWD estimates at three different spatial levels: river basins, states, and districts within them, and
finally presents a comparative analysis of all these results. Findings of the present study will be immensely useful in understanding
various ecological issues connected with water resource projects and proposals in these river basins. 相似文献
789.
Applying Integrated Urban Water Management Concepts: A Review of Australian Experience 总被引:2,自引:0,他引:2
Mitchell VG 《Environmental management》2006,37(5):589-605
This article explores recent Australian experiences in the application of the concept of integrated urban water management
(IUWM) to land development sites through the review of 15 case studies. It discusses lUWM’s emergence and comments on the
success or otherwise of Australian experience in its application. The understanding of IUWM is maturing within the Australian
water industry, an occurrence that has been facilitated by demonstration sites such as those reviewed. Successes include the
translation of IUWM concepts into well-functioning operational urban developments, significant reductions in the impact of
the urban developments on the total water cycle, and the increasing acceptance of the concept within the water and land development
industries. However, there is still room for greater integration of the water supply, stormwater, and wastewater components
of the urban water cycle, improved dissemination of knowledge, enhancement of skills in both public and private organisations,
and monitoring the performance of systems and technologies. 相似文献
790.