环境保护中辐射技术的应用研究

介绍了近年来利用稳定同位素C和N以及放射性元素^7Be和^137Cs作为示踪元素应用在土壤侵蚀、水土流失研究中所取得的重要进展,讨论了电子束辐照和γ射线辐照在工业废水和废气处理的机理及其应用,说明了辐射技术在环境保护中具有重要的作用。The important progresses of studies on water loss and soil erosion using stable carbon, nitrogen isotopes and ^7Be, ^137Cs as tracers is introduced. The mechanisms and applications of the electron beam and y rays irradiation in industrial effluent disposal and tail gas treatment are discussed, which indicates the importances of the irradiation technology in environment protection.     

ARL-SMS-2000全自动光谱仪的故障处理及日常维护

介绍了美国热电集团公司ARL SMS-2000全自动光谱仪所出现的突发故障及相应的处理办法,并对仪器的维护保养提出了具体要求.     

高能电子束和γ射线辐照降解氯酚类污染物研究

多氯酚污染物是一类具有强烈生物毒性,并且在环境中难以降解的持久性有机污染物, 对其生物危害和降解研究已成为环境科学界关注的热点。对高能电子束和γ射线辐照降解氯酚类持久有机污染物的降解机理和重要进展进行了概述,并报道了课题组应用γ射线辐照和臭氧相结合技术,处理经生化工艺后仍含有多氯酚的工业废水的研究情况。结果表明, 辐照O₃氧化联合降解工业废水具有显著的协同效应, 可以有效提高溶解有机碳的去除率。Chlorinated phenols have been paid great concerns recently because of their extreme toxicity and persistency in the environment. The paper reviews mainly the recent progresses on irradiation degradation of chlorinated phenols in aqueous solution by using high energy electron beam & γ rays. Mechanisms dealing with the irradiation degradation of chlorophenols and the different effect on degradation efficiency have been discussed. The results show that synergetic effect of the combination of γ irradiation and O3 on degradation of chlorinated phenols is significant.