含硫污水系统耐蚀材料的筛选与应用

针对西北地区一综合炼油厂含硫污水管线的严重腐蚀问题，分析了腐蚀原因，确立了材料筛选方案，通过实验室静态挂片试验绘制了重量损失率变化曲线和现场挂片等试验手段，筛选推荐出了树脂玻璃钢耐蚀材料。工业生产应用结果表明，MFE-2型树脂玻璃钢是适用于该厂含硫污水系统的耐蚀材料，为类似装置的长周期运行提供了借鉴和经验。     

连云港市农业面源污染饮用水源的主要途径及防治对策

连云港市区主要饮用水源蔷薇河为南北走向,汛期易受东西走向的过境洪水影响,水质经常受到农业面源的污染。通过分析农业面源的来源、污染途径,提出了防治污染的具体措施。     

环境质量意义的变迁——对环境的重新认识

“环境质量”是环境科学中的一个重要概念．随着人们对人类与环境关系认识的发展，即环境意识的发展，以往的环境质量的概念已与之不再适应，环境质量应以人与自然的和谐发展为基础重新定义．     

洱海水质分析及综合评价

本文择取整理了１９８０－１９９０年洱海水质监测资料，选用ＰＨ值，溶解氧、ＢＯＤ５高锰酸盐指数、ＴＮ和ＴＰ６个项目，分析和综合评价洱海水质在枯，丰，平不同水文期的质量及变化规律。洱海水质在平水期属Ⅰ类，丰水期属Ⅱ类，枯水期属Ⅲ类。     

Carbon Budget Implications of the Transition from Natural to Managed Disturbance Regimes in Forest Landscapes

Land-use change from an unmanaged to a managed forested landscape in northern forests is associated with a reduction of the area annually affected by natural disturbances (wildfires and forest insects) and the introduction of harvesting as a new disturbance. This study examined the impacts of changes in the disturbance regime-the frequency and type of disturbance-on landscape-level carbon (C) content and fluxes. The Carbon Budget Model of the Canadian Forest Sector was used to assess these impacts in six representative landscapes (100,000 ha each) with a range of disturbance regimes that are characteristic of conditions in coastal British Columbia, the interior of British Columbia, and the eastern boreal forest in Canada. The model was used to simulate ecosystem C fluxes during a period of natural disturbances, a 50-year transition period during which harvesting replaced natural disturbances, followed by 150 years of harvesting. The initial landscape-level biomass C content under natural disturbance regimes in the six example landscapes was 22 to 75% of their potential maximum content which is often used as the reference or baseline case. After 200 years of forest management, the C stored in the landscape plus the C retained in forest products manufactured from harvested biomass was between 58 and 101% of the landscape C content prior to the onset of harvesting. Landscape-level ecosystem C content was found to be affected by changes in the disturbance frequency, the age-dependence of the disturbance probabilities, and the disturbance-specific impacts on ecosystem C content. The results indicate that using the potential maximum C content of a landscape as the baseline always overestimates the actual C release due to land use change. A more meaningful procedure would be to assess the actual differences in landscape-level C content between the natural and the managed disturbance regime.     

宁夏灌溉回归水开发再利用的评价

宁夏灌溉回归水指灌溉农业土壤深层渗滤水、农田尾水、渠道渗漏水、退水及少量的工业废水和城镇生活污水,年排量３０～３５亿ｍ^３。对灌溉回归水２０种物质含量的评价表明,它属无毒有害型淡水。采取与渠水（来自黄河水）掺灌或轮灌对作物生长无不良影响,也不会引起土壤盐碱化,可大胆开发利用。     

硫铁矿生物法制酸及其应用研究

用细菌氧化硫铁矿产酸，然后用该酸性水去中和燃煤电厂碱性灰水。在实验室内研究了初始ｐＨ、温度及硫铁矿的投加量等因素对产酸速度的影响；试验表明：用该酸性水处理高ｐＨ、高悬浮物（ＳＳ）含量的灰水，可以达到排放或回用要求，且成本较低。     

浅谈荆马河污水资源化生态工程

遵循可持续发展的原则，针对经济欠发达地区的水环境污染现状，提出了兴建产业化的污水处理生态工程，科学地发展污灌，既有效地改善了京杭运河（徐州段）的水环境质量，又使徐州市城市污水得以资源化利用，对促进环境与社会经济协调发展具有积极意义。     

饮用水中五种有机磷农药的快速检测法

本文介绍了使用Ｗａｔｅｒｓ ＯＡＳＩＳ－ＨＬＢ固相萃取小柱从水中分离富集敌百虫、敌敌畏、乐果、甲基对硫磷，对硫磷五种有机磷农药的快速检测法。     

延安炼油厂第四循环水场冷却塔设计

简要介绍了延安炼油厂冷却塔的塔型选择及设计计算，提出对大型逆流式冷却塔的设计建议