烟气除尘脱硫一体化产物氧化特性研究

简述了石灰湿法烟气除尘脱硫一体化的工艺过程,通过工程试验并结合实验室小型试验,重点探讨石灰湿法烟气除尘脱硫一体化条件,脱硫产物亚硫酸盐的氧化过程及其影响因素。     

用Ti/SnO2-RuO2电极处理黑索金废水

利用刷涂法制备了Ti/SnO2-RuO2电极,并通过SEM、XRD等测试手段对其进行形貌及结构表征。利用该电极为阳极处理黑索金(RDX)废水,考察了电解质种类、电解质质量浓度、废水pH、电流密度以及电解时间等对RDX电催化氧化效果的影响。实验结果表明,当处理100 mL质量浓度为50 mg/L的RDX废水时,以Na2SO4为电解质、Na2SO4质量浓度为5.0 g/L、废水pH为7、电流密度为15 mA/cm2、电解时间为300 min的条件下,RDX去除率达到82.55%,COD去除率达到55.41%。     

煤炭产业国际竞争力的遗传—投影寻踪评价

根据煤炭产业发展的实际状况,提出了煤炭产业竞争力评价的指标体系。采用探索性数据分析—投影寻踪法,结合遗传算法,建立了遗传—投影寻踪综合评价模型。以全球11个主要产煤国为对象进行了实证研究,验证了该方法的科学性和实践的可行性,提出提升我国煤炭产业竞争力的对策建议。     

我国标准气体应用于涉VOCs重点行业监测管理中的不足及建议

随着我国对VOCs监测控制的持续推进,VOCs标准气体的配套应用及其管理思路也面临着新要求和挑战。本文通过梳理我国VOCs类标准气体对涉VOCs企业污染物监测和管理支撑的现状,指出了VOCs监测管理中对标准气体的应用要求尚待细化、已有VOCs标准气体应用不够充分、VOCs标准气体对排放标准实施的精准支撑作用不足等问题。在探究现状与问题的基础上,提出进一步细化VOCs排放监测对标准气体应用要求、加强企业自行监测中VOCs标准气体的应用指导、加强短缺标准气体的研制与应用的建议。     

固定化藻类去除氮、磷的研究进展

综述了近20年来固定化藻类去除氮、磷的主要研究,归纳分析了相关的研究数据和结果,分别从固定化技术、藻类的生理特征、去除机理、影响因素、生物反应器等方面做了具体介绍.     

海南东寨港红树林湿地面积变化及其驱动力分析

本文分析了海南省东寨港红树林湿地的面积变化及其驱动力。结合早期地形图和实地调查数据，利用3个时相的TM遥感图片，计算出1959年、1989年、1996年、2002年4个时相的红树林面积分别为3213．8hm^2、1657．8hm^2、2018．8hm^2和1552．6hm^2。在过去的近50年里，有近50％的天然红树林被毁掉，红树林湿地被转换为经济林种植田、水产养殖塘、城镇基础设施建设用地等。自1980年成立红树林自然保护区以来，红树林得到了一定程度的保护，1989年到1996年图像对比上红树林面积增加了361．0hm^2。近年来，旅游业的开发对红树林生态系统存在一定程度的干扰。2002年，红树林面积相对于1996年减少了566．2hm^2。此外，红树林斑块的空间格局和树种的构成发生了变化，红树林群落植物多样性明显减弱。在综合分析基础上，根据生态系统综合管理的思想。提出了建立高水平的管理研究队伍，采用先进的管理技术和手段，综合管理红树林生态系统。     

Soil erosion and non-point source pollution impacts assessment with the aid of multi-temporal remote sensing images

Soil erosion associated with non-point source pollution is viewed as a process of land degradation in many terrestrial environments. Careful monitoring and assessment of land use variations with different temporal and spatial scales would reveal a fluctuating interface, punctuated by changes in rainfall and runoff, movement of people, perturbation from environmental disasters, and shifts in agricultural activities and cropping patterns. The use of multi-temporal remote sensing images in support of environmental modeling analysis in a geographic information system (GIS) environment leading to identification of a variety of long-term interactions between land, resources, and the built environment has been a highly promising approach in recent years. This paper started with a series of supervised land use classifications, using SPOT satellite imagery as a means, in the Kao-Ping River Basin, South Taiwan. Then, it was designed to differentiate the variations of eight land use patterns in the past decade, including orchard, farmland, sugarcane field, forest, grassland, barren, community, and water body. Final accuracy was confirmed based on interpretation of available aerial photographs and global positioning system (GPS) measurements. Finally, a numerical simulation model (General Watershed Loading Function, GWLF) was used to relate soil erosion to non-point source pollution impacts in the coupled land and river water systems. Research findings indicate that while the decadal increase in orchards poses a significant threat to water quality, the continual decrease in forested land exhibits a potential impact on water quality management. Non-point source pollution, contributing to part of the downstream water quality deterioration of the Kao-Ping River system in the last decade, has resulted in an irreversible impact on land integrity from a long-term perspective.     

Identification of river water quality using the fuzzy synthetic evaluation approach.

Proper identification of water quality conditions in a river system based on limited observations is an essential task for meeting the goals of environmental management. Various classification methods have been used for estimating the changing status and usability of surface water in river basins. However, a discrepancy frequently arises from the lack of a clear distinction between each water utilisation mode, the uncertainty in the quality criteria employed and the vagueness or fuzziness embedded in the decision-making output values. Owing to inherent imprecision, difficulties always exist in some conventional methodologies when describing integrated water quality conditions with respect to various chemical constituents, biological aspects, nutrients, and aesthetic qualities. This paper presents a comparative study using three fuzzy synthetic evaluation techniques to assess water quality conditions in comparison to the outputs generated by conventional procedures such as the Water Quality Index (WQI). Based on a set of data collected at seven sampling stations, a case study for the Tseng-Wen River system in Taiwan was used to demonstrate their application potential. The findings clearly indicate that the techniques may successfully harmonise inherent discrepancies and interpret complex conditions. A further, newly developed fuzzy synthetic evaluation approach described in this paper might also be useful for verifying water quality conditions for the Total Maximum Daily Load (TMDL) program and be helpful for constructing an effective water quality management strategy.     

新疆能源消费领域节能潜力分析

以2005年为基准年,根据统计数据和发展目标分析了“十一五”期间新疆能源消费领域的节能潜力.结果显示,新疆万元GDP、万元工业增加值能耗均远高于全国水平,能源消费领域节能潜力为4 557.33×10^4t标准煤;石油加工、炼焦及核燃料加工业,石油和天然气开采业,电力、热力的生产和供应业,黑色金属冶炼及压延加工业,非金属矿物制品业,建筑节能,化学原料及化学制品制造业是新疆节能潜力较大的领域,且节能潜力依次减小,总节能潜力达3 348.48×10^4t标准煤;上述这些行业和领域内能耗均较高,建筑节能在节约资源的同时减少城市大气污染,是节能的优先领域.