摘要
提出多氯联苯(PCBs)现场清理、安全处置全过程的3项技术:①山沟堆沙区域PCBs废物地下封存点的物探技术;②PCBs污染现场清理范围的过程确定技术;③PCBs废物混配焚烧处理技术。由于PCBs废物含氯苯浓度高,且难分解,PCBs废物混配焚烧处理技术的关键的PCBs废物与其它危险废物经预处理混配后高温焚烧,焚烧系统焚烧PCBs废物产生的烟气在1 250℃高温下二次焚烧而完全分解;而焚烧系统的尾气处理技术则经过高效脱酸及重金属、二恶英吸附后,完全满足PCBs废物安全处理技术要求。
Three techniques of PCBs waste site clearance and securely disposal whole-process were proposed, i.e., geophysical prospecting technology of PCBs waste underground storage site on the valley sand stack area, clearance scope process confirming technology of PCBs waste contaminated site and incineration disposal technology of PCBs waste compounding and mixing. Because PCBs waste contains high concentration of chlorine and benzene, and is difficult to decompose, key PCBs wastes were pretreated by mixing other hazard wastes and then incinerated at a high temperature. The flue gas will enter the secondary combustion chamber for further combustion at the temperature of 1 250℃, where organic compounds and dioxin will be fully decomposed. The high efficiency of deacidification and de-heavy mental is guaranteed, exhaust gas treatment technology will completely meet the demand of PCBs waste safe disposal.
出处
《环境科技》
2013年第4期37-41,共5页
Environmental Science and Technology
关键词
多氯联苯
封存点
物探
烟气二次焚烧
尾气处理
Polychlorinated biphenyls
Storage site
Geophysical prospecting
Gas secondary Incineration
Exhaust gas treatment
