衍生化气相色谱法测定环境水样中的多菌灵

通过对反应温度、时间等衍生化条件的优化研究,建立了环境水样中残留多菌灵的衍生化气相色谱氮磷检测方法。方法的最低检出浓度为0.10μg/L,样品加标回收率为83.2%～90.9%,相对标准偏差为4.6%。利用该方法能较好地满足GB 21523-2008《杂环类农药工业水污染物排放标准》中该杂环类农药的痕量测定要求。     

水中丙烯酰胺气相色谱测定方法研究

研究建立了大口径毛细管柱气相色谱法测定水中丙烯酰胺的方法。优化了水中丙烯酰胺的衍生化条件,用乙酸乙酯和正己烷混合溶剂萃取衍生产物,萃取后直接进行色谱分离分析,水中丙烯酰胺的最低检测浓度为0.05μg/L,回收率在94.5%～113%之间;进行6次平行精密度试验,相对标准偏差低于11.5%。研究建立的气相色谱法简便、快速、准确、重现性好,定量、定性准确可靠,适合水中丙烯酰胺的分析测定。     

气相色谱——火焰光度法测定废水中黄磷的方法研究

研究了以苯为萃取剂，用气相色谱－－火焰光度法测定废水中的微量黄磷。结果色谱分离良好，萃取率大于９４％，水样易于保存，溶剂和杂质不干扰测定，水样加标回收率大于８８．４８％，精密度重复测定的变异系数不大于３．２％，定性检出限为２μｇ／Ｌ，定性检出限为６μｇ／Ｌ。     

梯度模式原理及其应用

本文推导梯度模式，引用大气边界层湍流系数进行实际运算，与现场大气环境监测结果对照；同时与高斯模式计算结果比较，得出该模式在城市复杂流场的实用性．     

催化分解法处理臭氧尾气的研究

以活性炭和γ -Al2 O3 为载体制备出负载锰和铜氧化物的用于臭氧尾气处理的催化剂 ,并采用固定床反应器进行分解臭氧尾气的实验研究。实验结果表明 ,活性炭负载锰和铜氧化物的催化剂的性能最好 ,1g催化剂在臭氧初始浓度为2 .5 g/m3 ,反应时间为 0 .0 36s条件下 ,其对臭氧的分解率可达 97.2 %。在相同臭氧初始浓度 ,反应时间为 0 .1s条件下 ,1g催化剂可以连续运转达 98h ,处理臭氧总量为 8.8g ,且湿度对其催化活性影响较大。     

废乳化液处理工艺的研究和应用

采用无动力油水分离器除浮油—破乳气浮—过滤、吸附工艺处理废乳化液 ,取得 COD去除率 99.88% ,实现p H6～ 9,COD<5 0 0 / mg·L- 1排放要求 ,运行效果稳定可靠。     

气相色谱法分离和测定合成革用胶粘剂中的挥发性有机物

对合成革用胶粘剂中的发挥有机成份进行了色谱分离，并测定了胶粘剂中的9种挥发性有机物，方法的加标回收率为89.4%～102.8%，变异系数为1.2%～5.0%。     

Advanced process systems design technology for pollution prevention and waste treatment

The paper presents a generic process synthesis and optimisation tool suitable to take up applications in the design of waste treatment systems and in pollution prevention. The main component of the technology is a generalized process synthesis representation for simultaneous consideration of reaction and separation in multiphase systems that is amenable for stochastic optimisation. The flexibility of the representation allows applications to overall process synthesis problems as well as to decomposed reactor, reactive separation and mass exchange network design problems. Applications of the synthesis framework to waste water treatments processes using activated sludge and to natural gas sweetening in hybrid membrane-adsorption processes are presented. The paper highlights the use of the systematic technology in environmental systems design and shows how novel designs of improved performance as well as optimal design knowledge can be revealed using the systematic design framework. Context abstract: Environmental process systems for waste treatment and pollution prevention become increasingly complicated to design. There is a strong need for technology that provides systematic decision support to the process synthesis team in order to enable the timely selection of processes that operate close to the performance limits of the system under consideration. Conventional, optimisation-based process design technology is severely limited by the number of design decisions they can support simultaneously as well as by the increasingly complex process models required for the meaningful mathematical representation of environmental process systems. We have devised an optimisation-based process design methodology for integrated reaction and separation systems that overcomes major limitations of existing tools. This paper illustrates the use of this technology to provide systematic decision-support to the environmental process systems designer.     

沈阳市填埋场填埋气利用途径比较

通过对国外填埋气体的利用情况介绍和国内现有填埋气体利用途径的比较,得出沈阳市填埋气体适于发电的结论。