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600 MW火电直接空冷风机的噪声及降噪措施 总被引:2,自引:0,他引:2
在国内首次提出600MW火电机组直接空冷风机的噪声问题,讨论了风机的功能,与空冷凝汽器的匹配,风机的能耗,从风机产生的噪声及其性质,噪声与风机参数的关系,噪声计算,噪声分析,噪声评价以及降噪措施等方面进行了论述,并从运行人员接触噪声源时间短的实际出发,提出建议的噪声允许值。 相似文献
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影响超高压输电线路可听噪声的因素众多,对影响可听噪声的因素进行合理分析确定其对可听噪声影响的权重是进行可听噪声预测和合理有效降低可听噪声的前提。对影响可听噪声的因素进行分析并运用层次分析法(AnalyticHierarchyProcess,AHP)对影响可听噪声的主要因素进行加权分析,以定量的形式确定影响因素的相对重要度。结果表明,应用层次分析法确定的可听噪声影响因素权重符合实际,准确性较高,为可听噪声选择主要影响因素用于预测及有效降低可听噪声提供参考依据。 相似文献
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本文论述了宜昌市平湖制药厂工业噪声污染调查及扩建工程工业噪声的环境影响评价。采用了目前国内较为通用的监测与评价方法和手段,较实际地调查和评价了该厂工业噪声的污染程度,以及扩建工程工业噪声对环境影响的程度。 相似文献
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本文介绍了美国环境影响评价的范围、评价程序,美国化工企业环境影响报告书的内容及评价方法,并对我国化工厂开展环境影响评价工作提出了几点看法。 相似文献
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本文论述了环境影响评价(EIA)对工程建设的指导作用,提出了超前性和针对性是提高EIA实用性的两个关键,并从评价方法、工作程序、研究重点、评价结论等方面作了多层次的阐述。 相似文献
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The absence of Potamogeton lucens L. in an area of Traunsee, Austria, which is heavily impacted by industrial sludges was related to these deposits. The hypothesis that P. lucens L. is affected by the industrial tailings was confirmed by growth experiments of the translocated plants in the field. At the unpolluted reference site of the lake, the plants grew better, they were longer and produced more leaves than at the emission site. 相似文献
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分析了化工建设项目环境影响评价工作中的热点问题。指出化工生产的环境风险是可控的;环评报告书中应将环境风险的预防作为风险评价的重点,同时要积极推进责任关怀,将企业每年度外排的各种污染物的数量及削减量如实公布,让公众了解企业在预防污染方面的进步和尚存的问题。提出了精简环评报告书的途径:编写环评报告书简化本;突出环评报告书的重点,将污染预防和治理措施作为环评报告书最重要的章节之一;评价环境影响预测的准确性等。 相似文献
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With the increasing number of recycling mishaps in connection with waste electronic and electrical equipment (WEEE) in the People's Republic of China, it is imperative that the handling and recycling of WEEE be sufficiently regulated in China. Regulations covering three major issues, namely, take-back issues, controls on hazardous substances in WEEE and the assurance of good environmental management in WEEE plants, were promulgated between 2006 and 2008. The evaluation in this country report shows that few of these regulatory measures have performed satisfactorily in terms of enforcement, of public acceptance and of environmental concerns. In brief, the take-back requirements and the associated financial responsibilities are only vaguely defined; the control on hazardous substances and the so-called "environmental expiry date" requirements cannot be properly enforced, and the resources needed to ensure the satisfactory enforcement of the environmental abatement and pollution control requirements in WEEE plants are overwhelming. In addition, the use of a "multiple enforcement body" approach to the control of hazardous substances in WEEE is an indication that the Chinese government lacks the determination to properly enforce the relevant legal requirements. 相似文献
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The current and future projections of energy utilisation and related environmental impact has been given. Due to the heavy dependance on low grade lignites and imported hard coal, Turkey is going to have problems in the control of CO2 emissions. Turkey was at first included as an Annex I country according to Kyoto Protocol. Later, it has been removed from the list which is justified considering the previous international environmental impact control applications and relatively much lower energy utilisation in Turkey, compared to Annex I countries. Therefore, Turkey has been removed from the Annex I list.Turkish power generation, industrial and transportation sector will be facing a difficult challenge over the coming 20 yr in complying with environmental impact levels. The developments in the liberalisation of Turkish energy sector since the 1980's is a positive step to overcome the problems. 相似文献
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根据目前国内城市电网建设的现状,对城市220 kV和110 kV输变电工程的环境影响进行分析,并结合输变电环境影响特点,提出相应的环境保护措施和对策,以解决城市电网建设中存在的问题. 相似文献
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建设项目环境影响经济损益分析研究 总被引:2,自引:0,他引:2
介绍了建设项目环境影响经济损益分析的基本概念和主要内容,阐述了这一方法的应用原则并进行了利弊分析。针对我国开展建设项目环境影响经济损益分析中的一些突出问题提出了改进建议。 相似文献
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