利用合成氨二段转化气联产甲醇技术的可行性分析

通过对国内外不同甲醇合成生产工艺技术概况及能耗指标的分析，探讨合成氨化肥企业利用现有工艺技术进行改造的可行性，以提高企业对市场的适应性。     

焦作煤矿区浅层地下水污染成因及特征研究

研究了焦作煤矿区的浅层地下水污染动态，分析了焦作市的地下水污染状况，找出了地下水污染的四条途径，讨论了浅层孔隙地下水污染的主要原因是矿坑排水形成水位降落漏斗、污水灌溉及河渠渗流等，研究了地下水污染的空间分布特征和规律。     

煤矿风井轴流风机噪声控制设计计算

煤矿风井轴流风机气流速度大,扩散口噪声辐射强度高达113dB(A),降噪难度较大的低频成份突出。正确合理的低频噪声控制设计计算是噪声控制成功的关键。     

炼油厂污水的综合治理

针对近年炼油厂高污染负荷污水增加问题,就采取预处理措施减少污染负荷及改进污水处理工艺提高污水处理能力进行了探讨,并提出污水综合治理方案.     

铝合金LC52对接焊海洋大气应力腐蚀研究

在设计制作的恒载荷大气应力腐蚀试验装置上，进行了铝合金LC52对接焊拉伸试样的海洋大气应力腐蚀试验研究。，对海洋大气应力腐蚀试验中断裂的、加载应力为0.5σ。的试样分析表明．铝合金LC52焊接件在海南海洋大气环境下存在应力腐蚀开裂：Cl^-富集于SCC部分的含钙和／或含硫的第二相质点，促进了应力腐蚀开裂．获得了铝合金LC52焊接的海洋大气SCC失效特征。     

高海拔环境对固体导弹的影响

分析了高海拔的自然环境条件,首次系统研究了固体导弹各系统在高海拔环境下的影响,通过试验数据说明固体导弹在高海拔条件下的适应性能,提出了适应性使用的建议,对固体导弹高原环境使用有一定的指导意义。     

三价砷和五价砷对活性污泥几种酶活性的影响

应用静态试验,研究了As(Ⅲ),As(Ⅴ)对活性污泥脱氢酶活性、脲酶活性、蛋白酶活性的影响。其结果:抑制10%脱氢酶、脲酶、蛋白酶活性的As(Ⅲ)浓度分别为10.0mg/gMLSS,13.4mg/gMLSS,2.6mg/gMLSS;As(Ⅴ)的浓度则分别为552.6mg/gMLSS,464.4mg/gMLSS,193.7mg/gMLSS。As(Ⅲ)对活性污泥的毒性比As(Ⅴ)平均大53倍。     

Adaptations to the dynamics of rural water supply from natural sources: A village example in semi-arid Nigeria

Domestic and agro-economic activities in the semi-arid region of Nigeria rely exclusively on rainfall, streamflow and groundwater in deep and alluvial (fadama) aquifers. Such water supply systems are subject to considerable seasonal and inter-annual variability. However, a combination of the various sources may mitigate the effects of water scarcity. This study describes the dynamics of the water sources for a village in northeastern Nigeria as an example that demonstrates the linkages between rainfall, streamflow and groundwater. Such linkages are important for developing strategies to mitigate the effects of climatic variation. Long-term records of rainfall were not available at the site so that the short-term data was interpreted in the context of the long-term climatic experience of the region. The stratigraphic profile of the aquifer was developed from resistivity methods, to supplement information obtained from well level hydrographs. Field observations and analysis of the data reveal that the beginning of the rainy season is a precarious period because none of the water sources are reliable. Rainfall infiltration recharges the shallow aquifers while lateral water flux from the floodwater-saturated fadama also contributes to water level rises in the deep wells. A study of the water level changes in response to deepening of the wells suggests that the wells are fed by an assortment of water-bearing lenses, separated by layers of low transmissivity. One major finding of this study is that there exists a close association between the wells in this riparian community and the recharge processes within the fadama. Upstream diversion, abstraction or impoundment could therefore undermine the viability of aquifer exploitation by the communities in the riparian zone. Analysis of the interactions among the various sources of water leads to the identification of several potential adaptation strategies for confronting the problem of water scarcity.     

利用粉煤灰固化含砷污泥的研究

对于As浸出率超标的硫酸废水处理系统污泥,应用固化处理可以有效降低砷浸出率。文章用水泥及粉煤灰固化冶炼厂硫酸废水中和污泥,以As的浸出率为控制指标,从时间、物料配比、pH值等方面考虑对固化块浸出率的影响,寻找粉煤灰最佳掺入量,有效降低处理成本,并尽量减少固体废物对环境的有害影响。与水泥固化相对比,采用粉煤灰固化具有更好的固化效果和明显经济效益。     

水解酸化＋两级生物接触氧化处理高盐度水产品加工废水

介绍了“水解酸化＋两级生物接触氧化”处理水产品加工废水的运行效果和工程实例，结果表明：对C1^-浓度平均6000mg／L的高盐度水产品加工废水，系统对COD、SS、氨氮的去除率分别超过了88％、90％、85％，出水COD、SS、氨氮分别低于100mg／L、70mg／L、15mg／L，出水完全可以达到《污水综合排放标准》（GB8978—1996）一级排放标准。