载体对镍基氨还原SO-2到元素硫催化剂性能的影响

用不同的载体（ＭｇＯ，α－Ａｌ２Ｏ３，γ－Ａｌ２Ｏ３和ＭｇＡｌ２Ｏ４）制备了４种镍基催化剂并对它们进行了氨还原ＳＯ２到元素硫反应活性评价。活性评价结果表明，由不同的载体制备的催化剂对该反应ＳＯ２的转化率和生成元素硫产率大小的影响次序均为：ＮｉＯ／ＭｇＯ〉ＮｉＯ／ＭｇＡｌ２Ｏ４〉ＮｉＯ／γ－Ａｌ２Ｏ３〉ＮｉＯ／α－Ａｌ２Ｏ３；而对生成硫选择性大小的影响次序则为：ＮｉＯ／ＭｇＯ〉ＮｉＯ／α－Ａｌ２Ｏ３     

辽宁省环境区划方法和分区系统

根据全省自然环境和社会环境结构特征、分异规律、所存在的主要环境问题,依据区内相似性与区间差异性的基本原则,进行了三个层次的三级环境区划。研究各环境区的环境结构、环境特征与环境灾害、环境污染等问题之间的内在联系;揭示生态环境失调与人类生产活动之间的相互关系;探讨各环境区经济发展的环境负荷以及今后发展方向与途径;提出各环境区主要环境问题及其相应的防治、管理对策。     

放射性核素在海水、底质及海洋生物间的转移--Ⅰ.核素进入海水后的初始状态

作者在建立的人工小生境中,研究了具有生态学意义的~(137)Cs、~(134)Cs、~(65)Zn、~(60)Co、~(59)Fe、~(54)Mn等核素在海水、底质及海洋生物间的转移规律.本文是该项研究的第一部分,研究悬浮物、底质对核素的富集和吸附,考察了核素进入海水后的初始状态.     

湖北旅游资源特征与分区

本文在分析湖北省旅游资源的赋存状况和特征基础上，提出了湖北旅游的分区方案，包括鄂东综合旅游，鄂中名胜古迹，鄂西北山岳风光和鄂西南峡谷溶洞与民俗风情４大旅游区，旨在为湖北区域旅游开发与产业布局提供理论依据。     

建筑物火灾危险性评估的一种工程方法

提出了建筑物火灾危险性评估的一种工程方法。该方法基于建筑火灾的区域模拟理论和人员疏散的最新研究成果，分别计算出火灾中达到危险状态的时间和整个疏散过程所需的时间，通过对比这两个时间，来确定火灾危险性的大小。这种方法概念清晰，简单易行，能在一定程度上对实际建筑物的火灾危险性进行评估，也可用于对火灾的安全工程设计评价和安全咨询。     

Difference of performance in response to disease admissions between daily time air quality indices and those derived from average and entropy functions

Environmental Science and Pollution Research - Daily time air quality indices, which can reflect air quality in 1 day, are suitable for identifying daily exposure during conditions of poor...     

Review of Italian experience on automotive shredder residue characterization and management

Automotive Shredder Residue (ASR) is a special waste that can be classified as either hazardous or non hazardous depending on the amount of hazardous substances and on the features of leachate gathered from EN12457/2 test. However both the strict regulation concerning landfills and the EU targets related to End-of-Life Vehicles (ELVs) recovery and recycling rate to achieve by 2015 (Directive 2000/53/EC), will limit current landfilling practice and will impose an increased efficiency of ELVs valorization. The present paper considers ELVs context in Italy, taking into account ASRs physical–chemical features and current processing practice, focusing on the enhancement of secondary materials recovery. The application in waste-to-energy plants, cement kilns or metallurgical processes is also analyzed, with a particular attention to the possible connected environmental impacts. Pyrolysis and gasification are considered as emerging technologies although the only use of ASR is debatable; its mixing with other waste streams is gradually being applied in commercial processes. The environmental impacts of the processes are acceptable, but more supporting data are needed and the advantage over (co-)incineration remains to be proven.     

Knowledge spillovers and subsequent innovation in green energy: the role of public R&D

Environmental Science and Pollution Research -     

Effect of straw retention on carbon footprint under different cropping sequences in Northeast China

Environmental Science and Pollution Research - Inappropriate farm management practices can lead to increased agricultural inputs and changes in atmospheric greenhouse gas (GHG) emissions, impacting...     

Metal distribution characteristic of MSWI bottom ash in view of metal recovery

Bottom ash is the major by-product of municipal solid waste incineration(MSWI), and is often reused as an engineering material, such as road-base aggregate. However, some metals(especially aluminum) in bottom ash can react with water and generate gas that could cause expansion and failure of products containing the ash; these metals must be removed before the ash is utilized. The size distribution and the chemical speciation of metals in the bottom ash from two Chinese MSWI plants were examined in this study, and the recovery potential of metals from the ash was evaluated. The metal concentrations in these bottom ashes were lower than that generated in other developed countries. Specifically, the contents of Al,Fe, Cu and Zn were 18.9–29.2, 25.5–32.3, 0.7–1.0 and 1.6–2.5 g/kg, respectively. Moreover,44.9–57.0 wt.% of Al and 55.6–75.4 wt.% of Fe were distributed in bottom ash particles smaller than 5 mm. Similarly, 46.6–79.7 wt.% of Cu and 42.9–74.2 wt.% of Zn were concentrated in particles smaller than 3 mm. The Fe in the bottom ash mainly existed as hematite, and its chemical speciation was considered to limit the recovery efficiency of magnetic separation.