论可持续发展理论的人文价值取向

分析了可持续发展理论蕴涵的丰富的人文思想基础,阐述了可持续发展理论具有的鲜明人文价值取向：体现人的发展和社会文明进步,呼唤有节制的发展,强调公平发展和生态文明建设     

化学质量平衡法在水体污染物源解析中的应用

化学质量平衡法（ＣＭＢ）是大气污染物源解析的主要方法之一。本实验模拟静肪水全点源恒流排放的条件,各污染物在水中的扩散行为,建立扩散经验模型来验证化学质量平衡法是否适用于水全污染物的源解析。做污染物浓度－距离曲线可预测各污染物的扩散行为;由同一污染源中污染物扩散方程的比较来确定污染源“成分谱”随扩散过程的变化,再由受体的污染物浓度便可求出每一污染源对该受体的贡献度,除极个别点外,污染物浓度实验值与预     

松辽平原土壤环境背景值区域特征及分布规律

一、前言 “松辽平原土壤环境背景值调查研究”列入国家“六五”重点攻关课题,由辽宁、吉林、黑龙江三省环境监测中心站、中国科学院林业土壤研究所、长春地理所、高能物理所等十六个单位组成协作组,对松辽平原24.6万km~2土地,采土壤剖面1025个,土壤样品3284个,进行35项元素及土壤性质的分析测试,共获得数据七万余个,提出了松辽平原土壤背景值及背景图。本文从土壤地球化学观点出发对该区土壤背景值区域特征及分布规律作一些探讨,至于详细采样布点设计,所用分析方法与质量控制以及分布类型检验方法等,请参阅“松辽平原土壤背景值调查研究”报告,此处从略。     

中温烟气脱硫中蒸汽活化对钙基脱硫剂孔结构影响的实验研究

采用将脱硫剂搭载在多孔的玻璃棉上,避免了传统的流化过程所导致的脱硫剂的磨损和破碎.分析了蒸汽活化后脱硫剂孔隙结构的变化,证实了中温条件下蒸汽活化改善了孔的结构,增加了中孔的数量,并使脱硫剂发生明显的破碎,从而减弱了产物层的扩散阻力,使SO2和CaO的接触和反应变得有利.并证实了对脱硫反应贡献最大的是100～5000nm的中孔,而不是导致比表面积迅速增加的微孔,同时还发现,600℃时的脱硫反应比300℃情况下使脱硫剂产生更大量的破碎,导致更多的孔间隙.因此从物理结构上也解释了脱硫反应在600℃时的钙利用率要高于300℃时的情况.     

生活垃圾仓式静态好氧发酵供风系统工艺设计

生活垃圾堆肥厂的核心——发酵系统对堆肥产品的质量和成本起着决定性的作用,所以其设计显得至关重要。结合多年的科研及工程实践经验,就垃圾仓式静态好氧发酵供风系统工艺设计中供风形式、方式选择,风量、风压计算以及供风控制形式选择等几个关键部分做了详细介绍。     

Photocatalytic elimination of indoor air biological and chemical pollution in realistic conditions

The photocatalytic elimination of microorganisms from indoor air in realistic conditions and the feasibility of simultaneous elimination of chemical contaminants have been studied at laboratory scale. Transparent polymeric monoliths have been coated with sol-gel TiO(2) films and used as photocatalyst to treat real indoor air in a laboratory-scale single-step annular photocatalytic reactor. The analytical techniques used to characterize the air quality and analyze the results of the photocatalytic tests were: colony counting, microscopy and PCR with subsequent sequencing for microbial quantification and identification; automated thermal desorption coupled to gas chromatography with mass spectrometry detection for chemical analysis. The first experiments performed proved that photocatalysis based on UVA-irradiated TiO(2) for the reduction of the concentration of bacteria in the air could compete with the conventional photolytic treatment with UVC radiation, more expensive and hazardous. Simultaneously to the disinfection, the concentration of volatile organic compounds was greatly reduced, which adds value to this technology for real applications. The fungal colony number was not apparently modified.     

Surface ozone comparison conducted in two rural areas in central-southern Spain

Purpose  

The purpose of this work is to contribute to the understanding of the photochemical air pollution analysing the levels and temporal variations of surface ozone in two rural areas situated in central-southern Spain.     

Structure and diversity of Erica ciliaris and Erica tetralix heathlands at different successional stages after cutting

In NW Europe, it is known that cutting is a useful tool for managers with regard to decisions about the conservation and management of wet heathlands. Nevertheless it is rarely described quantitatively in the international literature. In Spain, knowledge about this is scarce or lacking. In this study, twenty communities were selected in Galicia (NW Spain) that would represent from one to four stages of vegetation development after cutting. Two 5?×?5?m plots were established for each stage to characterise the vegetation on the basis of its species composition, frequency values, vertical structure and linear cover features. The Diversity Shannon index was calculated and multivariate analyses were performed. As succession advanced, notable changes were produced in the cover of dominant species, Erica ciliaris and Ulex gallii in the first stages and Erica tetralix and Genista berberidea in mature ones. Also, the species richness decreased because of the reduced number of herbs species in the mature stages and, finally, the cover values are indicators of the degree of vegetation development, together with the other parameters of height, overlayering or diversity. Cutting is a useful tool for management of heathlands because the existence of vegetation units belonging to different succession stages increases the internal diversity of communities. On the other hand, the vertical and horizontal structure reflects the formidable resilience of the vegetation community to this practice. This study offers a global vision of the dynamics of wet heathlands after cutting, with very useful ecological information that can be used by the people responsible for their management.     

济钢除尘风机及风机出口噪声治理成功案例

济钢球团竖炉工艺除尘风机因场地受限建设在办公区域内,致使办公室的室内外噪音检测超标,为了保证正常生产办公秩序,采用隔声罩原理对除尘风机及风机出口噪声进行降噪处理,在解决风机出口噪声问题的同时,较好地解决了烟囱传播噪声的达标问题。