焦化水NH_3-N、COD降解技术研究

本文系鞍钢环保研究所、鞍钢化工厂和鞍山焦耐设计院的中试研究报告的部分内容,作为鉴定材料之一于1991年通过部级鉴定。本文主要报道了应用A—A/O脱氮流程处理焦化污水氨氮、COD降解技术,处理指标均优于常规的活性污泥法。该技术对焦化污水处理系统的建设,特别是原有生物脱酚装置的改造具指导意义。     

湿法烟气脱硫应用中的几个问题探讨

对火电厂应用石灰石 石膏法烟气脱硫中遇到的几个实际问题进行分析和讨论 ,重点讨论分析了湿法烟气脱硫和烟气温度、烟气抬升高度、烟气扩散的关系 ,并分析了湿法烟气脱硫对烟囱产生的腐蚀影响     

中国首届SWAT国际高级研讨班举办消息

SWAT模型是美国农业部农业科学研究院（USDA—ARS）和美国德州农工大学（Texas A＆M University）联合开发的流域尺度模型，主要用于模拟地表水和地下水水质水量，预测土地管理措施对不同土壤类型、土地利用方式和管理条件的环境影响，在流域水土流失防治、非点源污染治理和区域环境管理等方面应用广泛。     

本溪市大气降尘及其组分变化规律的研究

对本溪市１９９１～１９９５年５年间降尘监测结果进行分析，找出其变化规律和分布情况，提出了改善大气环境质量的建议．     

《千年生态系统评估》

揭示生态系统变化对人类福祉的影响警醒决策者与公众做出积极反应。[编者按]     

Spatial variations in daily average CO2 concentrations above wetland surface of Xianghai National Nature Reserve, China

Horizontal and vertical variations of daily average CO2 concentration above the wetland surface were studied in Xianghai National Nature Reserve of China in August, 2000. The primary purpose was to study spatial distribution characteristics of CO2 concentration on the four levels of height(0.1 m, 0.6 m, 1.2 m and 2 m) and compare the differences of CO2 concentration under different land covers. Results showed that daily average CO2 concentration above wetland surface in Xianghai National Natural Reserve was lower than that above other wetlands in northeast China as well as the worldwide average, suggesting that Xianghai wetland absorbed CO2 in August and acted as“sink” of CO2. The horizontal variations on the four levels of height along the latitude were distinct, and had the changing tendency of“decreasing after increasing” with the increase of height. The areas with obvious variations were consistent on different levels of height,and those with the highest variations appeared above surface of shore, sloping field, Typha wetland and Phragmites wetland; the vertical variations were greatly different, with the higher variations in Phragmites wetland and Typha wetland, and the lands near the shore and the sloping field with the lower variations. Spatial variations of daily average CO2 concentrations above wet!and surface were affected by surface qualities and land covers.     

不同农业灌溉用水对土壤理化性质影响的研究

编者按 土壤管理和土壤利用方式影响着土壤的发育方向和土壤的性质(如土壤质地、土壤环境、土壤生态等).农业生产中对土地的不同管理措施或方式直接影响着农业土壤的发展方向和土壤环境变化.城市污水往往有较高的肥力,利用其灌溉农业,即能利用水源又能利用其中的肥源,有利于农业生产.