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冶金行业设备、设施安全装备状况分析 总被引:2,自引:0,他引:2
吕先昌 《中国安全科学学报》2002,12(2):40-44
针对冶金行业当前生产实际 ,阐述了几种不同生产系统的设备、安全装备状况 ,并从总体上分析了该行业在此方面与国内外先进系统的差距及其原因 ,然后提出了对策和建议。 相似文献
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Davide Chiaroni Vittorio Chiesa Simone Franzò Federico Frattini 《International Journal of Green Energy》2017,14(11):889-898
This article investigates the impact that the electricity tariff reform is likely to have on investments in renewable energies (i.e., photovoltaics) and the adoption of energy efficiency measures (i.e., installation of heat pumps and efficient home appliances) in the residential market in Italy. The study develops detailed cost comparisons and simulations considering two different investment scenarios (before and after the reform) to conclude that the reform will: (i) have a negative impact on investments in photovoltaic systems; (ii) favor the adoption of energy efficiency measures, such as efficient home appliances. 相似文献
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Home composting is a waste prevention measure related to the management of the household's food waste, garden trimmings, and other smaller organic household waste streams. Thus, home composting is an alternative way of exploitation of the “biomass” generated from the households. It is an alternative to centralized composting. Biomass utilization is explicitly stated as a principle of green chemistry. The aim of this paper is presentation of the results of a case study dealing with the life cycle environmental assessment of home composting of food waste in households in Greece. The results of the study indicate that home composting is environmentally preferable over the current organic waste management situation in Greece. 相似文献
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Present status of the recycling of waste electrical and electronic equipment in Korea 总被引:7,自引:1,他引:7
In Korea due to rapid economical growth followed by urbanisation, breakage of large traditional families into small nuclear families, continuous changes in equipment features and capabilities causes tremendous increase in sale of new electrical and electronic equipment (EEE) and decrease in sale of used EEE. Subsequently, the ever-increasing quantity of waste electrical and electronic equipment (WEEE) has become a serious social problem and threat to the environment. Therefore, the gradual increase in the generation of WEEE intensifies the interest for recycling to conserve the resources and protect the environment. In view of the above, a review has been made related to the present status of the recycling of waste electrical and electronic equipment in Korea. This paper describes the present status of generation and recycling of waste electrical and electronic equipment, namely TVs, refrigerators, washing machines, air conditioners, personal computers and mobile phones in Korea. The commercial processes and the status of developing new technologies for the recycling of metallic values from waste printed circuit boards (PCBs) is also described briefly. Since 1998, three recycling centers are in full operation to recycle WEEE such as refrigerators, washing machines and air conditioners, having the total capacity of 880,000 units/year. All waste TVs are recently recycled on commission basis by several private recycling plants. The recycling of waste personal computers and mobile phones is insignificant in comparison with the amount of estimated obsolete those. Korea has adopted and enforced the extended producer responsibility (EPR) system. Korea is making consistent efforts to improve the recycling rate to the standards indicated in the EU directives for WEEE. Especially environmentally friendly and energy-saving technologies are being developed to recycle metal values from PCBs of WEEE. 相似文献
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杭州市家庭室内空气中PBDEs的污染现状与特征 总被引:3,自引:0,他引:3
分析评价了杭州市家庭室内空气中多溴联苯醚(PBDEs)的污染现状及特征.结果显示:杭州家庭客厅空气中气相和颗粒相PBDEs的总浓度平均值分别为52.57 pg·m-3,范围为21.37~83.47 pg·m-3、卧室浓度为43.78 pg·m-3,范围为28.72~58.75 pg·m-3,BDE-47和BDE-99是家庭室内空气中最重要的两种单体,占总浓度的62.75%.室内空气中气相PBDEs浓度是颗粒相的1.49倍.高层建筑中的PBDEs浓度与低层建筑差别不大,均处于较低水平.PBDEs的理化性质、环境条件是影响其气固分配的重要因素. 相似文献
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为了考察生活垃圾复垦排矸场的渗滤水特性,对垃圾与矸石在三种不同堆置方式下重点考察了渗滤水pH值、COD、F~-、Cr~(6 )和全Hg浓度;并对腐熟后土壤中的有机质含量、容重、含水量及饱和水等进行了测定。试验研究表明,垃圾与矸石均匀混合堆置方式具有较好的效果。 相似文献
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厦门室内多溴二苯醚的沉降通量、季节变化与人体暴露水平 总被引:1,自引:1,他引:1
室内灰尘是人体对多溴二苯醚(PBDEs)暴露的重要乃至主要途径.吸尘器收集的灰尘中PBDEs的含量与室内人员血液中该物质含量的相关性较差,不适用于估算人体暴露剂量,也不能研究其沉降通量及其季节变化,用被动采样法采集室内降尘则可弥补这些不足.在厦门市选取家庭、办公室、机房和家具厂等采样点49个,用水平放置的玻璃板(四周用洁净铝箔围起)采集一年四季的降尘样品,对降尘中PBDEs的沉降通量、含量、组成、季节变化与人体暴露水平等进行研究.厦门家庭、办公室、机房和家具厂中ΣPBDEs(16种BDE的和,含BDE-209)全年沉降通量几何均值分别为6.1、3.0、1.1和179.8ng·(m~2·d)~(-1),家庭室内ΣPBDEs沉降通量是办公室的两倍,但全年家庭室内降尘中ΣPBDEs的含量(445.5 ng·g~(-1))仅略高于办公环境(384.0 ng·g~(-1)).厦门家庭、办公室、机房ΣPBDEs年均沉降通量与国内外城市相比处于较低水平.家具厂PBDEs沉降通量远高于普通环境.秋季ΣPBDEs沉降通量最大.各类室内环境四季降尘ΣPBDEs中BDE-209的百分比几何均值都在80%以上.家庭、办公室和机房室内ΣPBDEs沉降通量和降尘通量显著相关,而家具厂ΣPBDEs沉降通量与降尘通量无显著相关性.家庭和办公室Σ_(15)PBDEs沉降通量与电脑年龄显著相关,而与电器和家具数量、装修等无统计显著相关性.室内降尘是人体对ΣPBDEs尤其是高溴BDEs的一条主要暴露途径. 相似文献
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