采用高温烧结资源化技术修复TNT红水污染土壤  

Restoration of TNT Red Water Contaminated Soil Using High Temperature Sintering Resourcing Technology

作　　者：姜鑫 刘珣 张峥 马欢松 赵倩云 吴远军 赵彩云 JIANG Xin;LIU Xun;ZHANG Zheng;MA Huan-song;ZHAO Qian-yun;WU Yuan-jun;ZHAO Cai-yun(Beijing North Energy Conservation and Environmental Protection Co.,Ltd.,Beijing 100070,China;Yuhuan Environmental Science and Technology Co.,Ltd.,Shijiazhuang 050000,China;Gansu Yinguang Chemical Industry Group Co.,Ltd.,Baiyin 730090,China)

机构地区：[1]北京北方节能环保有限公司,北京100070 [2]煜环环境科技有限公司,河北石家庄050000 [3]甘肃银光化学工业集团有限公司,甘肃白银730090

出　　处：《含能材料》2021年第6期552-556,I0010,共6页Chinese Journal of Energetic Materials

基　　金：中国兵器工业集团有限公司军品科研开发费项目(JZ2015312);国家土壤污染防治专项资金计划项目(Z135060000007)。

摘　　要：为筛选最佳治理技术以解决火炸药行业TNT红水污染土壤问题,研发了高温烧结资源化修复技术。将污染土壤与粘土按体积比(4∶6)混配后在隧道窑烘干段利用焙烧余热烘干26 h,再进入焙烧段焙烧24 h,烧结温度1100℃左右。隧道窑烟气经脱硫脱硝设施处理后由43 m排气筒排入大气。成品砖出窑后自然降温。土壤中的特征污染物-二硝基甲苯磺酸盐完全氧化分解,烧结烟气达标排放,资源化产品符合建材砖的质量标准且无特征污染物残留,满足土壤修复目标值(二硝基甲苯磺酸钠含量100 mg·kg^(-1))的要求。工程应用证明了高温烧结资源化技术修复TNT红水污染土壤的可行性和有效性。To select an optimum treatment technology to solve the TNT red water contaminated soil problem in explosive industry,the high temperature sintering resourcing technology was developed.Contaminated soil and clay soil were mixed in a volume ratio of 4∶6,dried for 26 h in the drying section of a tunnel kiln by residual heat from the roasting section,and then roasted for 24 h in the roasting section at 1100℃.Sintering tail gas of the tunnel kiln was emitted into ambient air from its 43 m high funnel after treatment of desulfurization and denitrification facilities.Finished bricks were cooled down naturally out of the kiln.The featured pollutant‑dinitrotoluene sulfonate in contaminated soil is completely decomposed,sintering tail gas reaches the emission standards,resource‑based products meet the quality standard of building material bricks without any featured pollutant residue,and soil restoration target(the content of dinitrotoluene sulfonate in soil less than 100 mg·kg^(-1))is met.The effectiveness and practicability of the high temperature sintering resourcing technology in TNT red water contaminated soil restoration was verified through engineering application.

关 键 词：TNT红水 土壤 二硝基甲苯磺酸盐 高温烧结 资源化技术 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] X53[环境科学与工程—环境工程]