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1.
燃煤电厂简易烟气脱硫工艺的研究   总被引:1,自引:0,他引:1  
本文提出了适合我国国情的一套燃煤电厂简易烟气脱硫工艺,并作了冷态模拟试验研究,研究结果表明,简易烟气脱硫工艺系统阻力能够达到约1000Pa的水平,脱硫效率可达到50-85%,值得进行更深入的研究。  相似文献   

2.
再生资源回收利用网络的建设和完善是促进我国再生资源产业发展的重要途径。目前我国再生资源回收网络建设仍较为滞后,尤其在广大农村地区,资源往往得不到有效回收利用,而大量废弃又造成了环境面源污染。如何将城市再生资源回收利用网络建设的经验引入农村,形成城乡互动、循环高效的回收利用网络,拉动农村资源利用和环境保护水平的提升,值得深入思考。  相似文献   

3.
在综合概述目前我国电子废物环境管理困境及其障碍性因素的基础上,提出了按BOT(建设-运营-转让)建设方式规划电子废物回收处理项目的建议,简述了BOT目方式的基本特征和项目实施过程中值得商榷的几个问题。  相似文献   

4.
认真贯彻第二次全国工业污染防治会议精神开创化工环境保护工作新局面化工部环境保护办公室(北京市100723)1993年即将过去,1993年是深化经济体制改革的一年,也是我国在政府部门进行机构调整、转变职能的一年。在这一年里。各地化工部门和企业,克服了许...  相似文献   

5.
俄罗斯是资源大国,同时也是工业化水平较高的国家,因此工业废物的产生量巨大,品种亦多。其废物的回收数量和再生利用的水平介于发达国家与发展中国家之间,经验值得借鉴,其在苏联解体后的二次资源回收利用动态更值得关注。  相似文献   

6.
中国2015年SO2排放总量宏观控制目标研究   总被引:1,自引:0,他引:1  
1980年中国SO2排放量为1160万吨,2005年为2549万吨,伴随节能减排政策的实施和s02治理投资的增加,到2010年我国SO2排放量将降至2300万吨(削减10%),仍位居世界第一位。在“十二五”期间,伴随人口、经济、能源的增长和发展模式的重大转变,我国2015年SO2排放总量面临微增长、不增长或减排的趋势。应用我国SO2减排宏观控制指标和模式预测了我国2015年SO2排放总量的4种图像或目标。提出了实现SO2排放总量削减10%目标的10条建议。  相似文献   

7.
深圳白泥坑、雁田人工湿地污水处理场   总被引:22,自引:0,他引:22  
本文介绍深圳白泥坑、雁田两个污水处理场的工艺流程、运行工况,列举了相关的设计参数和水质分析数据,并指出了存在的问题。认为人工湿地污水处理系统作为一种独特的工业及市政生活污水处理技术是可行的,值得全国中小城市借鉴与推广。  相似文献   

8.
2013年10月30日,国家发展改革委解振华副主任带队赴浙江省诸暨市调研浙江富源再生资源有限公司废旧军服综合利用示范项目建设情况,并召开座谈会,听取有关单位关于推进我国废旧纺织品综合利用工作的经验介绍,就存在的问题和政策建议,与有关单位负责同志进行了深入探讨,研究部署下一步工作。  相似文献   

9.
近日,国家发展改革委发布了《中国资源综合利用年度报告(2014)》,全面反映了我国2013年以来各领域、各部门、各行业资源综合利用工作开展情况和取得成绩。报告在上一版基础上,新增了废矿物油、废气、报废汽车等三个领域,反映了我国共25类废弃资源综合利用情况。本刊连载刊出《中国资源综合利用年度报告(2014)》全文,以方便读者学习参考。  相似文献   

10.
2008年9月10日--12日,商务部商业改革司门晓伟副司长带专家组一行六人来天津市对再生资源回收体系建设试点项目进行验收,听取了天津市再生资源回收工作汇报。专家组参观了天津子牙环保工业园,对天津市社区回收网络、初级分拣加工中心、废旧不锈钢集散加工中心、废旧轮胎回收加工利用中心等再生资源回收试点建设项目进行了现场考察和验收。专家组对天津市再生资源回收工作给予了高度评价和充分肯定,指出:从最近走几个省市验收情况看,天津工作做得实,数据清楚,措施得力。再生资源回收体系建设走在了全国前列,值得推广。具体表现在:一是天津高度重视再生资源回收工作。  相似文献   

11.
Water, Air, &; Soil Pollution: Focus -  相似文献   

12.
农业再生资源是再生资源的一个特殊而重要的组成部分,开展农业再生资源回收利用是再生资源产业向新领域的拓展,是助农增收、为"三农"服务的有效途径,是事关新农村建设的重要课题。本刊根据2009年12月18日中再生协会农业再生资源利用专业委员会成立大会暨2009年海峡两岸农业再生资源综合利用研讨会上的相关资料,刊发一组领导讲话,以使读者了解和认识实施农业再生资源回收利用的现实背景和重大意义。  相似文献   

13.
An adaptation procedure of a new emission inventory of theGreater Athens Area is attempted, based on a sensitivityanalysis on the treatment of the VOC emissions. Throughthis procedure the impact that a more detailed treatment ofthe VOCs emissions might have on the atmospheric chemistrysimulations, is examined. For this analysis three differentchemical mechanisms were applied for two differentlocations (urban and city plume) with different VOC andNOx mixture characteristics. Finally, this studyrecommends new carbon fractions, reflecting the localconditions in Athens basin.  相似文献   

14.
The state-of-the-art in oil spill modeling is summarized, focusing primarily on the years from 1990 to the present. All models seek to describe the key physical and chemical processes that transport and weather the oil on and in the sea. Current insights into the mechanisms of these processes and the availability of algorithms for describing and predicting process rates are discussed. Advances are noted in the areas of advection, spreading, evaporation, dispersion, emulsification, and interactions with ice and shorelines. Knowledge of the relationship between oil properties, and oil weathering and fate, and the development of models for the evaluation of oil spill response strategies are summarized. Specific models are used as examples where appropriate. Future directions in these and other areas are indicated  相似文献   

15.
欧盟旱在1994年就颁布了包装和包装废物的指令,提出了包装废物管理的目标和管理内容,要求各成员国采取积极的经济和法律措施,建立自由流通的公平市场秩序。通过研究评估表明,包装和包装废物指令的实施产生了多方面的积极影响。统计数据表明,历年包装废物回收总量平稳增加,处置量平稳下降,单位GDP产值产生包装废物的系数基本保持稳定,但各国包装废物人均产生量存在较大差异。  相似文献   

16.
17.
It is well known that air pollution is one of the major factors affecting human health and the activities in a town. Among the various air pollutants an interesting one, especially for sunny climates, is the reactive O3. O3 varies significantly through the year; it is therefore very important to know the onset and the duration of the warm period of the year since at that time O3 concentrations increase significantly. In this work, an attempt was made to determine the onset of warm season of the year as well as its duration in various sites located in Northeastern Mediterranean. For this purpose, a fuzzy clustering method is used. The method was applied on the isobaric thickness between 1000 and 500 hPa for the period from 1974 to 1997. The results were compared to conventional methods based on synoptic classification and were found to be in good agreement.  相似文献   

18.
Autocondensation and copolymerization reactions of the Acacia nilotica subspecies tomentosa (Ant) and the subspecies adansonii (Ana) tannins extracts solutions have been studied at several pH values by thermomechanical analyzer. Results of chemical analysis of these tannins revealed that the studied tannins, Ant and Ana contained high percentages of extractable tannins (54 and 57 %) for and polyphenolic materials (78 and 80 %) respectively. Different hardeners such as paraformaldehyde, Urea and pMDI were added at different ratios and their polycondensation reactions was studied and compared with their autocondensation ones. The aim was to evaluate the tannins suitability for the production of commercially and technically viable tannin adhesives with reduced Formaldehyde emission for wood products and to study the interference between the autocondensation and the copolymerization reaction. The obtained results of autocondensation reaction for both of the tannins studied showed that the best Young’s modulus values for Ant (3,500 and 2,750 MPa) and Ana (2,650 and 2,620 MPa) were obtained at pH 5 and 7. The Young’s modulus values obtained by the tannins Ant were higher than those achieved by Ana. This indicates that the Ant is more reactive than Ana. These results were also in line with results achieved by the gel time for both of the tannins. Gel time results indicate that the reactivity of both tannins increased towards alkalinity with Ana being more reactive at alkaline pH. Addition of 8 % of paraformaldehyde was adversely affecting the autocondensation reactions, as the best Young’s modulus values were achieved at pH 4 for Ant tannins. As for Ana the higher Young’s modulus values (2,000 and 2,310 MPa) were achieved at pH 5 and 7. This indicates that autocondensation reaction was contributed to the final network of the copolymerization reaction. When smaller ratio of paraformaldehyde and Urea (5 %) was added to Ant tannins it favors the autocondensation reaction and the best Young’s modulus values were obtained at pH 5 and 7. Addition of pMDI (10–30 %) was found to decrease the temperature of copolymerization and the obtained Young’s modulus values by Ant were lower than those obtained by autocodensation reaction. Best Young’ modulus values were obtained by Ant at pH 5 and 7. Ana gave the best Young’s modulus values at pH 4 and 5 indicating that the autocondensation appears to depress the copolymerization reactions. The obtained results by both reactions were very important from technical and economical point of view as they concluded that it is very possible to produce adhesives system with zero emission depending on the tannins autocondensation reaction and pH values. Reduction of formaldehyde emission was also possible upon addition of smaller amount of paraformaldehyde and Urea.  相似文献   

19.
介绍了日本的资源循环法律体系和促进容器包装分类回收和再商品化的法律和有关方针,介绍了日本容器和包装的管理体制和主要措施,以及各类包装废物回收利用状况和特点。  相似文献   

20.
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