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1.
针对间接冷却水的特点和核算其污染当量数过程中存在的问题,阐述了间接冷却水的界定,水源水的采样监测技术,本底值的扣除以及超标排放的判别等环节的技术要求和注意事项,并就与之密切相关的几个问题展开了讨论,为核算间接冷却水当量数提供了一定的参考依据,建议增加水湿排放指标,以切实控制间接冷却水造成的主要污染-热污染。 相似文献
2.
Although stewardship has been widely defined and used in environmental management and planning, there is a dearth of studies
that describe how the lay public perceives this concept. A national sample of residents in 14 states who live near DOE nuclear
facilities were interviewed to delineate public understanding and awareness of the stewardship program of the U.S. Department
of Energy (DOE). This study discusses the findings of the survey and discusses how institutional trust influences public participation
and resident’s choices of potential stewards. Almost 40% of the respondents could not define stewardship; those who did, believed
that ‘responsibility,’ ‘management,’ and ‘accountability’ are key elements of stewardship. In addition, about a third of the
respondents identified Federal groups and the DOE as potential stewards.
Readers should send their comments on this paper to: BhaskarNath@aol.com within 3 months of publication of this issue 相似文献
3.
Riebsame WE 《Disasters》1985,9(4):295-300
Three recent cases of climate extremes are studied to identify human impacts and response strategies and to identify common characteristics that may help illuminate the nature of climate hazards. The 1980 heat wave in the central United States, 1981 cold wave in Boston, Massachusetts, and recent flooding and lake level rise in northern Utah, illustrate several important aspects of climate hazards that separate them from the more traditional set of catastrophic events (e.g. tornadoes, hurricanes and earthquakes) usually dealt with by hazards research and management. Among those characteristics are an emphasis on health impacts rather than physical damage, accumulative effects rather than short shocks, a tendency for impacts to accrue to certain socio-economic classes, and relatively slow onset. The management and research implications of these hazard characteristics are explored. 相似文献
4.
以邢台市环境保护监测站10年来的监测资料为依据,运用单因子比值法,环比发展速率外推法和直线回归法,对地下水环境质量现状及10年的动态变化进行了分析,研究和评述,并对发展趋势做了预测性评价。 相似文献
5.
模具寿命是冷摆辗的关键问题之一。选择合理的模具材料以及采用适宜的热处理工艺可以提高冷摆辗模具的强韧性,从而提高模具寿命。基于摆动辗压工艺的基本原理,分析研究了冷摆辗模具的受力情况,并对冷摆辗模具材料的选择及热处理工艺作了探讨。 相似文献
6.
煤烟型大气污染解决方法 总被引:3,自引:0,他引:3
重点介绍了新型燃煤工艺——水平火焰无烟工业炉及其特点,并提出排烟尾气处理的资源化方案。 相似文献
7.
路芳银 《石油化工环境保护》2006,29(1):9-11
在开展清洁生产过程中,江苏油田真武天然气集中处理站通过节约用水和冷量回收工艺的技术改造,减少了外排水,使水得到循环利用;能量得到很好的利用,增加了产品的产量,给企业增加了经济效益。 相似文献
8.
This paper considers relationships between sustainability objectives, transport, spatial design of the built environment and rational use of energy. Conventional transport modelling, housing supply and energy assessment tools are drawn together to provide a common platform for appraisal of city-wide energy use by stationary and mobile sources. The paper outlines methodologies developed for the city of Belfast, Northern Ireland. The paper concludes by briefly reviewing the effect in terms of mobile and stationary energy consumption and travel behaviour of implementing sustainable policy measures in current and future years within the study area. 相似文献
9.
《环境科学学报(英文版)》2023,35(4):222-233
Anaerobic digestion (AD) of swine manure (SM) commonly shows low biogas output and unsatisfactory economic performance. In this study, thermophilic AD (TAD, 50 ± 1 °C) was combined with thermal hydrolysis pretreatment (THP, 170 °C/10 bar), to investigate its potential for maximizing biogas yield, securing successful digestion and microbial diversity, as well as improving energy balance. Four lab-scale continuously stirred tank reactors were operated for 300 days and compared with each other, i.e., reactor 1 (raw SM fed in mesophilic AD: RSM-MAD), reactor 2 (THP-treated SM fed in MAD: TSM-MAD), reactor 3 (RSM-TAD), and reactor 4 (TSM-TAD). The results showed that THP was efficient to increase methane production of SM, TSM-TAD mode led to the highest methane yield (129.8 ± 40.5 mL-CH4/g-VS/day) among the tests (p < 0.05). Although TAD was more likely to induce free ammonia (> 700 mg/L) or volatile fatty acids (> 6000 mg/L) accumulation compared with MAD in start-up phase, TSM-TAD treatment mode behaved a sustainable digestion process in a long-term operation. For TSM-TAD scenario, higher Shannon–Weaver (3.873) and lower Simpson index (0.061) indicated this mode ensured and enlarged the diversity of bacteria communities. Phylum Bathyarchaeota was dominant (59.3%−90.0%) in archaea community, followed by Euryarchaeota in the four reactors. RSM-MAD treatment mode achieved the highest energy output (4.65 GJ/day), TSM-TAD was less effective (−17.38 GJ/day) due to increased energy demands. Thus improving the energetic efficiency of THP units is recommended for the development of TSM-TAD treatment mode. 相似文献
10.
重庆的能源利用与大气污染 总被引:3,自引:0,他引:3
文章分析了大气污染和酸雨对重庆生态环境产生的危害。研究表明,重庆的大气污染主要由燃煤导致,控制大气污染的对策应与能源发展规划相协调,只有降低煤炭使用比例才能使重庆乃至我国的大气污染物排放量做到根本性消减,要把调整能源结构提到能源发展战略的高度 相似文献