微波法修复十溴联苯醚污染土壤的影响因素  

Heating-up characteristics and factors affecting remediation of decabromodiphenyl ether-contaminated soil by microwave irradiation

作　　者：荣统帅 李婷婷[1] 王健 胥维昌[1] 彭湃[1] 孟垚 李彦成 张广新 RONG Tong-shuai;LI Ting-ting;WANG Jian;XU Wei-chang;PENG Pai;MENG Yao;LI Yan-cheng;ZHANG Guang-xin(Shenyang Research Institute of Chemical Industry,Shenyang 110021,China;Environmental Protection Bureau of Benxi Manchu Autonomous County,Benxi 117100,China)

机构地区：[1]沈阳化工研究院,辽宁沈阳110021 [2]本溪满族自治县环境保护局,辽宁本溪117100

出　　处：《应用化工》2020年第7期1683-1686,1692,共5页Applied Chemical Industry

基　　金：国家自然科学基金青年基金项目(41701563);辽宁石油化工大学引进人才科研启动基金(2016XJJ-049)。

摘　　要：采用微波辐照技术修复十溴联苯醚(BDE-209)污染土壤,以自制无氧微波试验系统为试验装置,考察微波功率、土壤量、土壤含水率、土壤初始pH和微波吸收剂在不同微波辐照时间下对BDE-209去除率的影响。结果表明,在所有影响因素下,BDE-209去除率都随微波辐照时间的增加而增大;微波功率过高,将对土壤表面形态产生不良影响;最优工艺参数为960 W、30 g土壤、20%含水率、pH 2.59、10%(质量分数)活性炭添加、辐照10 min,即可将BDE-209完全去除且不改变土壤表面形态特征。The soil contaminated with decabromodiphenyl ether was remediated by microwave irradiation technology.The self-made anaerobic microwave test system was used as the experimental device.The effects of microwave power,water content,acid-base concentration,soil amount and microwave absorber on the removal rate of BDE-209 were investigated.The results show that under all influencing factors,the removal rate of BDE-209 increases with the increase of microwave irradiation time.The optimum process parameters are 960 W,30 g soil,20%moisture content,pH 2.59,10%activated carbon addition,irradiation for 10 min,then BDE-209 can be completely removed without changing the soil surface morphology.

关 键 词：十溴联苯醚 微波辐照 温度 土壤修复 

分 类 号：TQ031[化学工程] X53[环境科学与工程—环境工程]