市政工程给排水管道的质量控制

介绍了市政工程给排水管道的重要意义,针对市政工程给排水管道施工中存在的问题,从重视施工质量、完善质量监督体系的管理两方面,提出了提高市政工程给排水管道施工质量的有效措施,希望为类似工程提供参考。     

硫元素资源化的研究与应用进展

概述了工业过程气中无机硫和有机硫两大类含硫化合物的资源化工艺与技术,介绍了湿法氧化技术在H2S的硫磺资源化和SO2的硫酸盐资源化的应用情况,阐述了工业过程气中复杂组分对湿法氧化脱硫效率及产物的影响。针对湿法氧化技术所存在的问题,对当前发展的离子液湿法氧化脱硫工艺,尤其是新工艺的绿色化特性进行了评述。展望了离子液湿法氧化脱硫工艺在实现硫元素资源化(包括硫磺资源化及硫酸盐资源化)方面的应用前景,新技术的研发对实现"十二.五"的节能减排达标具有积极的意义。     

三元铁基离子液体-乙醇-水体系的湿法烟气脱硫性能研究(英文)

Fe-based ionic liquid(Fe-IL) was synthesized by mixing FeCl3?6H2O and 1-butyl-3-methylimidazolium chloride [Bmim]Cl in this paper.The phase diagram of a ternary Fe-IL,ethanol and water system was investigated to construct a ternary desulfurization solution for wet flue gas desulfurization.The effects of flow rate and concen-tration of SO2,reaction temperature,pH and Fe-IL fraction in aqueous desulfurization solution on the desulfuriza-tion efficiency were investigated.The results shows that the best composition of ternary desulfurization solution of Fe-IL,ethanol and water is 1︰1.5︰3 by volume ratio,and pH should be controlled at 2.0.Under such conditions,a desulfurization rate greater than 90% could be obtained.The product of sulfuric acid had inhibition effect on the wet desulfurization process.With applying this new ternary desulfurization solution,not only the catalyst Fe-IL can be recycled and reused,but also the product sulfuric acid can be separated directly from the ternary desulfurization system.