活性炭吸附低浓度SO_2烟气的研究

利用水洗再生活性炭吸附法，对模拟火力发电厂烟气及克劳斯炉尾气进行脱除ＳＯ２的试验研究，ＳＯ２脱除率大于９０％．     

恶臭污染成因及防治对策初探

充分分析炼油厂在正常生产，不正常生产及停工检修过程中的恶臭污染源，提出加强管理，根据各地的气象条件，选择适当的检修期，以及对重点污染源进行恶臭治理等措施，可以达到消除恶臭，改善环境的目的。     

生命周期评价的应用,内涵与挑战

从环境问题与可持续发展出发，指出生命周期评价是在产品层次上实现可持续发展的一种理论评价工具，并探讨了生命周期评价的内涵，论述产品生命周是进行生命周期评价的客观依据，详细探讨应用生命周期评价存在的问题，指出进一步研究生命周期评价的方向。     

项目EIA与区域环境规划的协调途径探讨

通过对项目ＥＩＡ与区域环境规划的概念,性质,内容,方法及在环境管理中作用的论述,指出了二者在实施中存在的问题,阐明了它们的特点与相互关系,同时结合我国当前的环境状况与面临的形势及对环境管理新的要求,提出了在今后的实施中应注意协调的原则和方法。     

Z198型除尘器在生石灰硝化工程上的应用

对Z198型布袋除尘器的结构、工作原理等作了介绍,并分析了其在生石灰硝化工程中的应用情况及效果,同时指出了在使用过程中存在的问题。     

试论冶金企业职业安全卫生评价技术和方法

介绍了安全卫生评价的目的和要求,同时介绍了职业安全卫生评价的方法。     

IMS Method Performance Analyses for Giardia in Water Under Differing Conditions

Immunomagnetic separation (IMS) has been specified as a standard method for the measurement of Giardia under USEPA Method 1623. In this study, IMS was evaluated on the basis of recovery efficiencies for Giardia cysts under various IMS operation conditions. Significant change in recovery was observed by altering the debris ratio of water samples. Notably, cyst recovery efficiencies utilizing IMS dropped with increased turbidity, and results for varying dosages of magnetic beads and cysts indicate that 1 / 100 immunomagnetic beads is sufficient to conjugate large numbers of cysts. Changing vessel volume and replacing the sample buffer had no significant effect on cyst recovery efficiencies.     

《恶臭污染物排放标准》修订的若干意见

从实际的恶臭监测分析出发,结合执行《恶臭污染物排放标准》过程中的各种体会,从标准的适用范围、浓度排放限值以及采样环节等三个方面,对《恶臭污染物排放标准》的修订提出了若干意见.建议对排放标准的适用范围进行调整,增加行业排放标准,对有组织排放增加浓度排放限值规定,对采样气象条件、采样点位、采样频率进行明确,并引入背景值或本底值的测量,对测量结果进行修正.     

Probability distributions and statistical inference for axial data

Observations on axes which lack information on the direction of propagation are referred to as axial data. Such data are often encountered in enviromental sciences, e.g. observations on propagations of cracks or on faults in mining walls. Even though such observations are recorded as angles, circular probability models are inappropriate for such data since the constraint that observations lie only in [0, π) needs to be enforced. Probability models for such axial data are argued here to have a general structure stemming from that of wrapping a circular distribution on a semi-circle. In particular, we consider the most popular circular model, the von Mises or circular normal distribution, and derive the corresponding axial normal distribution. Certain properties of this distribution are established. Maximum likelihood estimation of its parameters are shown to be surprisingly, in contrast to trigonometric moment estimation, numerically quite appealing. Finally we illustrate our results by several real life axial data sets. Received: September 2004/ Revised: December 2004     

用黑麦幼苗法测定土壤中污染元素的生物有效性

本文对全国污灌区１２个土样中Ｃｄ形态与生物有效性的试验表明，Ｃｄ的交换态，吸附态，有机结合态均有效，且有机结合态最为有效，对紫阳县富硒土壤的试验表明：黑麦幼苗中的总Ｓｅ量与０．１ｍｏｌ／１ＫＨ２ＰＯ４的浸提量最为相关，从而推荐该法为酸性土壤有效Ｓｅ的浸提方法，对西安污水厂污水污泥在娄土上不同施用量的试验表明：幼苗中Ｎ，Ｐ随施用量增加而增加，Ｎ，Ｐ的有效率分别为５０－７０％及１５－２８％；黑麦幼苗中