有关有限边界岸边排放稳态二维混合模式的几个问题的探讨

针对目前我国环境影响评价领域普遍采用的有限边界岸边排放稳态二维混合模式的局限性和不精确性，本文对由河流二维稳态水质模型的基本方程推求出的有限边界岸边排放的二维稳态混合模式的解析解的各项进行分析比较。同时针对费休的混合长度公式进行了计算比较。     

石灰石-石灰乳二段中和法处理矿山酸性废水

分析了处理含重金属离子矿山酸性废水的处理工艺。通过实例说明石灰石-石灰乳二段中和法与传统的石灰乳中和工艺相比，有较大的优越性，可以降低处理成本和减少沉渣的产生量。     

两相厌氧消化工艺的研究进展及其应用

两相厌氧消化工艺因产酸相和产甲烷相的分离而具有一系列的特点和优势。针对该工艺的理论依据和运行机理进行了阐述，讨论了两相厌氧消化工艺的相分离以及相分离的实现对整个工艺的影响，着重剖析了两相厌氧消化工艺的影响因素，并对该工艺的应用范围及存在的问题进行了论述，说明了工艺的先进性和可行性。     

Effects of lead , cadmium , mercury chlorides and aquaticenvironmental samples on the growth of Escherichia coli

In this paper it was reported that PbCl₂ , CdCl₂ , HgCl₂, and aquatic environmental samples containing Al, Cd, Cu, Pb, Sr, Zn and other heavy metal ions as well as organic chemicals suppressed thegrowth of E. coli only at higher exposed concentrations. The stimulative effects of PbCl₂ and HgCl₂ on thegrowth of E. coli were clearly showed at lower concentrations and longer time. It suggested that the toxic effects of heavy metal ions and other pollutants on the growth of E. coli are variable according to the differentexposed levels.     

二段生物接触氧化法处理城市污水评析

介绍了二段生物接触氧化法的构成、特点、运行情况、脱氮除磷效果及生物填料的选择,并进行了技术经济分析,最后总结了该工艺在城市污水处理厂中的应用情况.     

滇池二维分层水质模拟研究

将三维问题“二维化”的分层迭代计算方法引入滇池水质模拟中，建立了湖泊二维分层水质模型，对滇池流场和总氮浓度场分两层进行了模拟计算，计算结果表明，该模型应用于滇池是成功的。     

旅游开发中的区域联动战略--以安徽省"两山一湖"地区为例

阐述了旅游区域联动发展战略的内涵、类型、原则及意义,分析了安徽省"两山一湖"地区实施旅游区域联动战略的必要性、可能性和发展现状,提出了若干对策.     

二段生物接触氧化工艺在中水回用中的特性研究

以规模小区生活污水为水源，对采用聚丙烯网状填料和强化炉渣组合填料的二段生物接触氧化工艺（以下简称二段法）进行了试验研究，试验针对本工艺的各项技术指标、影响因素以及各相关参数进行了较系统的试验测试。结果表明，反应器在第一接触氧池HRT为20 min、气水比为6∶1和第二接触氧池HRT为25 min、气水比为5∶1条件下，接触氧化池达到最佳降碳条件；反应器在第一接触沉池上升流速5.5 m/h和第二接触沉池上升流速4.5 m/h条件下，接触沉淀池达到最佳处理条件。     

CRITICAL EVALUATION OF CERTAIN METHODS OF UNSTEADY GROUNDWATER HYDRAULICS1

The basic theories and fundamental assumptions usually employed in the solution of unsteady groundwater flow problems are reviewed critically. The best known method of analysis for such problems is based on the Dupuit-Forchheimer approximation and leads to a nonlinear parabolic differential equation which is generally solved by linearization or numerical methods. The accuracy of the solution to this equation can be improved by use of a different approach which does not employ the Dupuit Forchheimer assumption, but rather is based on a semi-numerical solution of the Laplace equation for quasi-steady conditions. The actual unsteady process is replaced by a sequence of steady-state conditions, and it is assumed that the actual unsteady flow characteristics during a short time interval can be approximated by those associated with “average” steady state flow. The Laplace equation is solved by a semi-discretization method according to which the horizontal coordinate is divided into subintervals, while the vertical coordinate is maintained continuous. The proposed method is applied to a typical tile drainage problem, and, based on a comparison of calculated results with experimental data, the method is evaluated and practical conclusions regarding its applicability are advanced.     

发挥环保监督网络作用 搞好“一控双达标”

介绍了新余发电有限责任公司建立环保监督网络和开展环保技术监督，做好“一控双达标”工作的具体做法。