长江、嘉陵江重庆段生活垃圾污染负荷研究

通过对重庆市生活垃圾的取样分析，得出重庆市城区、郊区城镇生活垃圾中污染物含量，从而计算出重庆现有的生活垃圾污染负荷。同时，对重庆市到２０００年生活垃圾污染负荷进行了预测，为重庆市水污染控制规划提供了必须的生活垃圾污染负荷数据。     

吸附胶体浮选法处理电解钴废水的研究

采用吸附胶体浮选法处理电解钴废水。用十二烷基磺酸钠（ＳＬＳ）作浮选剂，用ＦｅＣｌ３和Ａｌ２（ＳＯ４）３作混凝剂，浮选后废水可达到国家工业废水排放标准（３ｍｇ／Ｌ）。为实际废水的处理提供了可靠的依据。     

混凝-氧化-微电解-过滤法处理维生素B1生产废水

针对维生素B1生产废水成分复杂、难于生化降解、水质不稳定、固体悬浮颗粒含量高的特点，采用混凝-氧化-微电解-过滤的方法进行处理。当混凝剂三氯化铁的投加量为150mg／L，氧化剂次氯酸钠使用量为40mL／L，微电解反应器内pH为3～5，反应时间为50min，混合滤料滤柱停留时间为35min时，出水TOC、COD、色度等指标均达到了GB8978-1996所规定的二类水质的要求。     

The life table and competing risks

The concept of the life table originated in longevity studies of man, where it was always presented as a subject peculiar to public health, demography, and actuarial science. As a result, its development has not received sufficient attention in the field of statistics. Actually, the problems of mortality studies are similar to those of reliability theory and life testing, and they may be described in terms familiar to the statistically oriented mind. From a statistical point of view, human life is a random experiment and its outcome, survival or death, ss subject to chance. The life table systematically records the outcomes of many such experiments for a large number of individuals over a period of time. Thus, the quantities in the table are random variables subject to established statistical analysis. The purpose of this presentation is to discuss the life table from a statistical viewpoint.     

重庆市某小城镇地表水污染控制及可持续发展规划研究

以重庆市渝西地区某小城镇环境规划为例，分析了该镇地表水存在的污染问题，并迎合该镇可持续发展的需要，制定了一系列地表水污染控制规划方案，分析了规划方案的环境效益。     

铁路汛期行车安全对策——雨量警戒制度研究

雨量警戒制度是铁路部门用于指导进行汛期警戒 ,确保线路汛期行车安全的一种安全保障制度 ,由警戒标准、防御标准和管理制度 3部分组成。它是一种分级、分段和各工种联控执行的警戒制度 ,其技术关键包括警戒标准和防御标准的制定。本文提出了雨量警戒制度警戒标准的指标体系 ,建立了警戒标准的制定方法与工作程式 ,并以成昆铁路雨量警戒制度的制定与实施说明了其应用。所提方法对铁路部门制定汛期行车安全对策具有普适意义。     

监测数据的审核及结果的分析与判断

本文介绍了监测数据审核的意义，从监测结果的表达、报告的完整性，采要的准确性等方面阐述了监测数据审核的要点，提出了监测结果异常数据的几种较为简便，实用的判断方法。     

新疆油田采出水处理技术

近几年新疆油田研究成功对采出水的处理技术,根据油田采出水水质特点、水处理药剂的反应机理、水处理药剂与原水的混合机理、絮体长大的机理及絮体沉淀的机理,采用了稠油污水微涡旋处理技术,高效水质净化与稳定技术等,处理后的污水又用于回注,降低了运行成本,减少了环境污染。     

MARSH DEVELOPMENT AT RESTORATION SITES ON THE WHITE MOUNTAIN APACHE RESERVATION,ARIZONA1

ABSTRACT: To prioritize sites for riparian restoration, resource managers need to understand how recovery processes vary within landscapes. Complex relationships between watershed conditions and riparian development make it difficult to predict the outcomes of restoration treatments in the semiarid Southwest. Large floods in 1993 scoured riparian areas in the Carrizo watershed on the White Mountain Apache Reservation in east‐central Arizona. We evaluated recovery at three of these sites using repeated photographs and measurements of channel cross sections and stream‐side vegetation along permanent transects. The sites were mapped as lying on the same soil type, had similar streamside vegetative communities, and were similarly treated through livestock exclusion and supplemental seeding. However, the sites and individual reaches within the sites followed strikingly different development paths. Dramatic recovery occurred at a perennial reach where cover of emergent wetland plants increased from 4.7 percent (standard error = 0.8 percent) in October 1995 to 55.5 percent (standard error = 2.7 percent) in September 2001. At several other reaches, geologic and hydro geomorphic characteristics of the sites limited inputs of fine sediment or surface water, resulting in modest or negligible increases in emergent cover. Recovery efforts for highly valued marshlands in this region should prioritize perennial reaches in low gradient valleys where salty sediments are abundant.     

静电除尘器的新应用及其发展方向

静电除尘器广泛应用于冶炼、水泥和电站锅炉等工业领域。在简单介绍传统静电除尘器的分类及结构的同时，列举了目前使用的一些新型的静电除尘器，对静电除尘器在除去气体污染物、异味等方面的新应用进行了概述，并对于使用电凝并、无电晕式等除尘新机理也作了原理性的介绍。