对污染场地修复过程挥发性有机物（ VOCs）散逸及浓度分布进行了检测分析，通过光离子气体检测仪（ PID）现场快速监测与采样管采样气相色谱质谱分析技术相结合的方式，进行了修复过程中VOCs散逸浓度检测，同时利用吹扫捕集法＋色谱／质谱检测分析方法进行了 VOCs污染场地内土壤中浓度检测。研究了VOCs在挖掘扰动过程中的散逸行为，并对气体中的VOCs浓度平面分布进行分析。结果表明，污染土壤中典型VOCs的散逸率整体上较高，对于该污染场地土壤特质，污染土壤扰动过程中，1，2?二氯乙烷散逸程度最高，苯散逸程度最低。 VOCs浓度并不因距离增加而呈现明显负相关关系，污染物在扩散过程中会出现波峰波谷的现象。
The escape and concentration distribution of voilitile organic compounds ( VOCs ) in the remediation process of a contaminated site was investisated. The concentration measurement was carried out through the combintion of P ID rapid monitoring and gas chromatography mass spectrometry with sampling tube. At the same time, the VOC concentration in the soils was detected by purge & trap + chromatography/mass spectrometry method. The escape of VOCs in the remediation process of the contaminated sites and the horizontal distribution of VOCs in the air was simulated on the basis of two groups of data. The results show that the dissipation rate of typical VOCs in the contaminated soil was high. For this contaminated soil, the 1,2?dichloroethane was the highest while benzene was the lowest. The VOC escape rate concentration is not negatively related to the distance rigorously, showing wave crest and trough alternately.
参考文献
| [1] | 郑海龙,陈杰,邓文靖.土壤环境中的多氯联苯（PCBs）及其修复技术[J].土壤,2004(01):16-20. |
| [2] | 李丽和,曹云者,李秀金,高新华,李发生.典型石油化工污染场地多环芳烃土壤指导限值的获取与风险评价[J].环境科学研究,2007(01):30-35. |
| [3] | 丛鑫,朱书全,薛南冬,李发生.有机氯农药企业搬迁遗留场地土壤中污染物的垂向分布特征[J].环境科学研究,2009(03):351-355. |
| [4] | 国家环保总局.国家环保总局发出通知要求切实做好企业搬迁过程中环境污染防治工作[J].化工环保,2004(6):457-458. |
| [5] | Mudliar, Sandeep;Giri, Balendu;Padoley, Kiran;Satpute, Dewanand;Dixit, Rashmi;Bhatt, Praveena;Pandey, Ram;Juwarkar, Asha;Vaidya, Atul .Bioreactors for treatment of VOCs and odours - A review[J].Journal of Environmental Management,2010(5):1039-1054. |
| [6] | 席劲瑛,胡洪营.生物过滤法处理挥发性有机物气体研究进展[J].环境科学与技术,2006(10):106-108. |
| [7] | 马超,梁杰,胡洪营,席劲瑛,王灿.紫外-生物过滤联合工艺处理VOCs的研究[J].环境科学与技术,2010(06):80-83. |
| [8] | Yang Lu;Jing Liu;Bingnan Lu;Anxi Jiang;Chunli Wan .Study on the removal of indoor VOCs using biotechnology[J].Journal of hazardous materials,2010(1/3):204-209. |
| [9] | R.R. Gil;B. Ruiz;M.S. Lozano.VOCs removal by adsorption onto activated carbons from biocollagenic wastes of vegetable tanning[J].Chemical engineering journal,2014:80-88. |
| [10] | Hongning Wang;Mei Tang;Ke Zhang;Daofei Cai;Weiqiu Huang;Ruoyu Chen;Chengzhong Yu .Functionalized hollow siliceous spheres for VOCs removal with high efficiency and stability[J].Journal of hazardous materials,2014(Mar.15):115-123. |
| [11] | Hsu LingJung;Lin ChiaChang.Binary VOCs absorption in a rotating packed bed with blade packings.[J].Journal of Environmental Management,2012:175-182. |
| [12] | Tham K W;Zuraimi M S;Sekhar S C .Emission modelling and validation of VOCs source strengths in air-conditioned office premises[J].Environment International,2004,30(8):1075-1088. |
| [13] | Lei Zhu;Baoqing Deng;Yuan Guo.A unified model for VOCs emission/sorption from/on building materials with and without ventilation[J].International Journal of Heat and Mass Transfer,2013:734-740. |
| [14] | Baoqing Deng;Chang Nyung Kim .Physical-based double-exponential model for VOCs emission from carpet[J].Atmospheric environment,2004(24):4085-4089. |
| [15] | 吕怡兵∗,谭丽,滕恩江,王超,吕天峰,梁宵.我国大气背景点挥发性有机污染物的浓度水平与组成特征[J].环境化学,2013(05):726-733. |
| [16] | 张靖,邵敏,苏芳.北京市大气中挥发性有机物的组成特征[J].环境科学研究,2004(05):1-5. |
| [17] | 王思源,邵敏,王玮.北京市大气中VOCs垂直分布的航测研究[J].中国环境科学,2009(07):679-684. |
| [18] | 孙杰,王跃思,吴方堃,邱俊.唐山市和北京市夏秋季节大气VOCs组成及浓度变化[J].环境科学,2010(07):1438-1443. |
| [19] | 张新民,柴发合,岳婷婷,张凯,陈义珍,段菁春,薛志钢.天津武清大气挥发性有机物光化学污染特征及来源[J].环境科学研究,2012(10):1085-1091. |
| [20] | 陈长虹,苏雷燕,王红丽,黄成,李莉,周敏,乔月珍,陈宜然,陈明华,黄海英,张钢锋.上海市城区VOCs的年变化特征及其关键活性组分[J].环境科学学报,2012(02):367-376. |
| [21] | J.E. Colman Lerner;E.Y. Sanchez;J.E. Sambeth;A.A. Porta .Characterization and health risk assessment of VOCs in occupational environments in Buenos Aires. Argentina[J].Atmospheric environment,2012(Aug.):440-447. |
| [22] | 邹桂香,戴友芝,刘煜竑.某地区室内挥发性有机物污染状况的调查研究[J].环境科学与技术,2008(08):80-83. |
| [23] | 王宇,齐飞,伦小秀,孙德智.北京市道路空气中挥发性有机物时空分布规律[J].环境科学研究,2010(05):596-600. |
| [24] | 付强,吕怡兵,吕天峰,滕曼,梁宵.北京市车辆管制前后大气中挥发性有机污染物的变化[J].环境化学,2008(06):826-830. |
| [25] | HJ/T166-2004.土壤环境监测技术规范[S].,2004. |
| [26] | Philip L Wylie.吹扫捕集/5975inert气-质联用仪分析水中的挥发性有机化合物[J].环境化学,2008(04):543-548. |
| [27] | 朱韶峰;黄吉.大气最佳采样时间及其布点的探讨研究[J].环境污染与防治,1990 |
| [28] | 齐文启;孙宗光.痕量有机污染物的监测[M].北京:化学工业出版社,2001 |
| [29] | 彭胜,陈家军,王红旗.挥发性有机污染物在土壤中的运移机制与模型[J].土壤学报,2001(03):315-323. |
| [30] | Ball W P;Roberts P V .Long-term sorption of halogenated organic chemicals by aquifer material. 2. Intraparticle diffusion[J].Environmental Science and Technology,1991,25:1237-1249. |
| [31] | 覃邦余,黄汉明,李小勇.影响污染物在土壤中运移的因素分析[J].科技信息（学术版）,2008(34):459-460. |
| [32] | 孙铁珩;李培军;周启星.土壤污染形成机理与修复技术[M].北京:科学出版社,2005:2-255. |
| [33] | 陈迪云,彭燕.憎水有机物在水/土壤、沉积物体系中吸附与解吸[J].化工时刊,2001(04):11-15. |
| [34] | 黄国强,姜斌,李鑫钢,徐世民.VOCs在土壤孔隙中扩散模型的适用性[J].天津大学学报,2004(11):945-948. |
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