活性炭除氡性能对比实验研究  

Comparative experiment on the performance of activated carbon for removal of radon

作　　者：叶茂林 姜建中 刘琪 董烘杉 王威 吕芳 YE Maolin;JIANG Jianzhong;LIU Qi;DONG Hongshan;WANG Wei;LV Fang(Institute of Defense Engineering,ASM,PLA,Beijing 100036,China)

机构地区：[1]军事科学院国防工程研究院,北京100036

出　　处：《防护工程》2022年第6期15-19,共5页Protective Engineering

摘　　要：针对地下工程氡污染的突出问题,对部分地下工程的氡浓度进行了实地调查与研究,检测得到的氡浓度平均值达到了1250 Bq/m^(3),最高值为5550 Bq/m^(3);对颗粒活性炭、球状活性炭和柱状活性炭进行了灰分含量、碘吸附值、四氯化碳吸附率、比表面积和孔容积检测分析,并在氡室内分别使用该3种活性炭进行了除氡实验,结果表明,活性炭对氡的吸附能力与其碘吸附值、四氯化碳吸附率和比表面积存在正相关关系,其中氡吸附性能最好的颗粒活性炭将室内氡浓度降低了33.18%。In view of the outstanding problem of radon pollution in underground constructions, a field investigation and research on radon concentration in selected underground constructions were carried out, and the average radon concentration detected reached 1 250 Bq/m^(3), with the highest value of 5 550 Bq/m^(3). Then, the ash content, iodine adsorption value, carbon tetrachloride adsorption rate, specific surface area and pore volume of granular activated carbon, spherical activated carbon and columnar activated carbon were tested and analyzed, and radon removal experiments using those activated carbon in radon chambers were conducted. The results show that there is a positive correlation between the adsorption capacity of activated carbon and its iodine adsorption value, carbon te-trachloride adsorption rate and specific surface area, and the granular activated carbon has the best radon adsorption performance which reduces the indoor radon concentration by 33.18%.

关 键 词：活性炭 氡 碘吸附值 四氯化碳吸附率 

分 类 号：X701[环境科学与工程—环境工程] TQ424.1[化学工程]