中小型造纸厂造纸废水处理

针对中小型造纸厂造纸废水处理的特点，分析讨论了采用混凝与生化处理相结合的工艺，处理中小型纸厂造纸废水的可行性，并在实验室条件下研究了生化处理过程中曝气强度、ｐＨ值等因素对ＣＯＤＣｒ去除率的影响     

CFCs资源化处理与处置方法

概述了国内外对氟利昂处理与处置的方法，提出燃烧法资源化处理氟利昂（以CFC-12为例）。此项技术是利用高温下水与CFC-12进行燃烧反应，并将其生成物质进一步转化成为有用物质，从而实现了氟利昂的无害化、资源化。     

Study on the cementitiousness of asbestos tailings

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原油储罐机械化清洗技术的应用

分析了国内原油储罐清洗工艺现状，详细介绍了原油储罐机械化清洗技术及应用，从安全、环保、效益几方面对应用效果做了客观分析，阐述了机械化清洗技术的科学性和优越性。     

三峡工程对库区鸟类资源的影响评价

经1984—1986年的研究,在掌握三峡库区鸟类资源现状及特点的基础上对国内已建水库鸟类的变动情况进行考察,了解影响鸟类的各种因素,研究这些生态因子对鸟类群落的影响,采用统计学方法量化三峡工程对鸟类资源的影响程度,作出定性、定量的预断评价。 研究结果表明,兴建三峡水库必将引起适应原有生态环境的鸟类群落在组成、生态分布等方面的变化,一方面使珍稀鸟类、经济鸟类受到破坏,使已趋贫乏的森林鸟类更加贫乏;另一方面水禽资源将会增长。但总的影响是弊大于利。建坝150m和180m对不同群落的影响各异。高坝对森林和农田鸟类不利影响值均大于低坝30％;对水域鸟类的有利影响值,高坝为低坝的两倍。     

Effect of liming on plant accumulation of cadmium under upland or flooded conditions

Liming a Cd-amended red earth (typical hapludalf) decreased plant shoot Cd content both in upland and in flooded conditions. The effect was due to the restriction of the total uptake of Cd from soil and the Cd transfer from roots to shoots following liming. Pot soil samples were sequentially extracted with 1 M ammonium acetate, 0.125 M Cu(II) acetate, and 1 m HNO3 to fractionate Cd into exchangeable, complexed, and acid-soluble forms. Results showed that soil flooding decreased exchangeable Cd and increased Cd in the complexed fraction. Liming also transferred Cd from exchangeable fraction to other lower available fractions depending on water regimes. With upland conditions, the Cd was transferred to the residual fraction, and to a lesser extent to the acid-soluble fraction, whereas in flooded soil the lost exchangeable Cd was recovered mainly in complexed fraction where the Cd was potentially more available for plants compared with that in residual and in acid-soluble fractions. Therefore, soil liming for controlling plant Cd uptake would be more favourable in upland rather than flooded conditions.     

模糊数学在爆炸危险性评价中的应用

在爆炸危险性分析与评价中应用模糊数学的一些方法是客观的需要,本文简单介绍了模糊综合评判和模糊故障树的原理和评价步骤。     

医疗垃圾热解焚烧实验研究

医疗垃圾是一种对环境危害极大的危险废弃物。用一种固定炉排炉热解焚烧系统，对广州市部分医院的医疗垃圾进行了热解焚烧及尾气净化试验，并对焚烧工况、烟气中主要的污染物含量及灰渣的灼减率进行分析。分析结果表明：稳定运行时炉膛平均温度在850℃左右，二燃室平均温度在1000℃以上；尾气中CO、NOx，HCI和SO2浓度分别为：71mg／m^3、125mg／m^3、27．8mg／m^3和21mg／m^3，灰渣的灼减率为2．7％。均远远低于标准限值。     

Notes on the models of cadmium kinetics

This paper identifies several drawbacks in the models of absorption and desorption of cadmium presented by [Garcia-Gomez, C., Carbonell, G., 2004. Modelling the absorption and desorption of cadmium on paper pulp using kinetic approaches. Chemosphere 55, 869-878]. It then provides suggestions on improving the effectiveness of the model.     

水稻土壤中硒的价态转化及溶解性研究

以酸性和碱性土壤为实验材料,在ＰＨ６．５和ＰＨ７．５条件下经氧化培养和还原培养,研究了氧化还原电位对水稻土壤中硒的价态及溶解性的影响。