2.污染场地安全修复技术国家工程实验室,北京 100015
1.Beijing Construction Engineering Group Environmental Remediation Co., Ltd., Beijing 100015, China
2.National Engineering Laboratory for Site Remediation Technologies, Beijing 100015, China
为了研究热解吸工艺放置顺序对土壤重金属稳定化效果的影响,通过小试模拟的方式,对不同种类的土壤样品进行实验,对比分析了土壤的关键指标在加热前后的变化。结果表明,当热解吸工艺放置在添加稳定化药剂前时,会提高土壤的pH,也会使土壤的重金属有效态质量分数和酸浸出质量浓度增加,但仅有较低的可能性使2者超标。并且,根据不同的土壤酸碱性质,热解吸工艺对重金属形态转化产生的影响不同。当热解吸工艺放置在添加稳定化药剂后,不影响土壤重金属有效态含量和浸出浓度,并对重金属的形态转化没有影响。2种技术联用时的顺序对重金属稳定化效果的影响较小。本研究可为工程项目实施时的工艺设计提供参考。
In order to study the effect of thermal desorption process placement sequence on the soil heavy metals stabilization, small simulation experiments were conducted on different types of soil samples through heating, and the changes of key soil indicators before and after heating were compared and analyzed. The results showed that when the thermal desorption process was placed before adding stabilizing agents, the soil pH increased, and the available content and the acid leaching concentration of the soil heavy metals also increased. However, there was only a low possibility that both of them exceeded the standard. Moreover, depending on the soil pH, the thermal desorption process had different effects on the transformation of heavy metals. When the thermal desorption process was placed after adding stabilizing agents, the available content and leaching concentration of heavy metals in the soil and the form transformation of heavy metals did not be affected. The impact of heavy metals stabilization was minor when the two technologies were combined. This research can provide references for process design during the implementation of engineering projects.
.
热解吸工艺对北京通州土壤重金属形态转化的影响
Influence of thermal desorption process on heavy metals form of soil from Tongzhou, Beijing
热解吸工艺对陕西商洛土壤重金属形态转化的影响
Influence of thermal desorption process on heavy metals form of soil from Shangluo, Shaanxi
热解吸工艺对湖南湘潭土壤重金属形态转化的影响
Influence of thermal desorption process on heavy metals form of soil from Xiangtan, Hunan
Influence of thermal desorption process on available content of soil heavy metals
Influence of thermal desorption process on acid leaching concentration of soil heavy metals
[1] | 庄绪亮. 土壤复合污染的联合修复技术研究进展[J]. 生态学报, 2007, 27(11): 4871-4876. doi: 10.3321/j.issn:1000-0933.2007.11.057 |
[2] | 周东美, 王玉军, 仓龙, 等. 土壤及土壤-植物系统中复合污染的研究进展[J]. 环境污染治理技术与设备, 2004, 5(10): 1-8. |
[3] | 张大同, 谢爱军, 高素萍. 重金属污染土壤固化稳定化修复技术研究进展[J]. 环境保护与循环经济, 2016, 36(6): 45-48. |
[4] | 吴健, 沈根祥, 黄沈发. 挥发性有机物污染土壤工程修复技术研究进展[J]. 土壤通报, 2005, 36(3): 430-435. doi: 10.3321/j.issn:0564-3945.2005.03.034 |
[5] | 李书鹏, 刘鹏. 钢铁企业污染场地修复经验探索: 我国钢铁企业场地污染特征及常用修复技术简介[J]. 世界环境, 2016(4): 59-62. |
[6] | 杨洁, 钱赵秋, 王旌. 反复冻融与高温老化对砷污染土壤固化稳定化效果的影响[J]. 环境科学, 2017, 38(11): 400-405. |
[7] | 尚小娟, 赵树兰, 多立安. 施用垃圾堆肥土壤重金属在不同温度和酸雨条件下的淋溶特征[J]. 环境工程学报, 2012, 6(3): 995-999. |
[8] | BABA A, GURDAL G, SENGUNALP F, et al. Effects of leachant temperature and pH on leachability of metals from fly ash. A case study: Can thermal power plant, province of Canakkale, Turkey[J]. Environmental monitoring and assessment, 2008, 139(1/2/3): 287-298. doi: 10.1007/s10661-007-9834-8 |
[9] | 马晓军. 水热法处理生活垃圾焚烧飞灰中重金属和二恶英的研究[D]. 杭州: 浙江大学, 2013. |
[10] | 刘亚珍, 武荣芳, 赵梦梦, 等. 温度对污泥焚烧灰中重金属迁移行为与浸出特性的影响[J]. 河南大学学报, 2018, 48(3): 93-98. |
[11] | 刁韩杰. 不同热解条件对污泥炭特性及重金属行为的影响[D]. 杭州: 浙江农林大学, 2018. |
[12] | 刁韩杰, 张进, 王敏艳, 等. 高温热解对污泥炭特性及其重金属形态变化的影响[J]. 环境工程, 2019, 37(3): 29-34. |
[13] | 中华人民共和国农业部. 土壤pH的测定: NY/T 1377-2007[S]. 北京: 中国农业出版社, 2007. |
[14] | 中华人民共和国农业部. 土壤检测第6部分: 土壤有机质的测定: NY/T 11216-2006[S]. 北京: 中国农业出版社, 2006. |
[15] | 中华人民共和国环境保护部. 土壤 8种有效态元素的测定二乙烯三胺五乙酸浸提-电感耦合等离子体发射光谱法: HJ 804-2016[S]. 北京: 中国环境科学出版社, 2016. |
[16] | 杨维, 高雅玲, 康志勇, 等. 毗邻铁矿的景区土壤重金属形态及生物有效性[J]. 环境科学与技术, 2010, 33(11): 82-86. |
[17] | 中国国家环境保护总局. 固体废物 浸出毒性浸出方法硫酸硝酸法: HJ/T299-2007[S]. 北京: 中国环境科学出版社, 2007. |
[18] | TESSIER A, CAMPBELL P G, BISSON M. Sequential extraction procedure for the speciation of particulate trace metals[J]. Analytical Chemistry, 1979, 51(7): 844-851. doi: 10.1021/ac50043a017 |
[19] | KHARE D, KHARE P, MISHRA G. Effect of heat on nutrient release from soil under tropical dry deciduous forest[J]. Japanese Journal of Ecology, 1982, 32(1): 107-110. |
[20] | MARCOS E, DE LUIS E, TARREGA R. Chemical Soil Changes in Shrubland after Experimental Fire[M]. Fire Management and Landscape Ecology.; International Association of Wildland Fire Fairfield, USA. 1998: 3-12. |
[21] | BADíA D, MARTí C. Plant ash and heat intensity effects on chemicaland physical properties of two contrasting soils[J]. Arid Land Research and Management, 2003, 17(1): 23-41. doi: 10.1080/15324980301595 |
[22] | GIOVANNINI G, LUCCHESI S. Modifications induced in soil physico-chemical parameters by experimental fires at different intensities[J]. Soil Science, 1997, 162(7): 479-486. doi: 10.1097/00010694-199707000-00003 |
[23] | GIOVANNINI G, LUCCHESI S, GIACHETTI M. Beneficial and detrimental effects of heating on soil quality[C]//Fire in Ecosystem Dynamics: Mediterranean and Northern Perspectives. Hague, 1990: 95-102. |
[24] | 费杨, 阎秀兰, 李永华. 铁锰双金属材料在不同pH条件下对土壤As和重金属的稳定化作用[J]. 环境科学, 2018, 39(3): 1430-1437. |
[25] | VARELA M, BENITO E, KEIZER J. Effects of wildfire and laboratory heating on soil aggregate stability of pine forests in Galicia: The role of lithology, soil organic matter content and water repellency[J]. Catena, 2010, 83(2/3): 127-134. doi: 10.1016/j.catena.2010.08.001 |
[26] | CHANDLER C, CHENEY P, THOMAS P, et al. Fire in Forestry. Volume 1. Forest Fire Behavior and Effects[M]. John Wiley & Sons, Inc., 1983. |
[27] | 于彬, 郭彦青, 杨乐苏. 化学氧化法测定土壤有机质的研究进展[J]. 广东林业科技, 2007, 23(1): 100-103. |
[28] | 周卫红, 张静静, 邹萌萌, 等. 土壤重金属有效态含量检测与监测现状、问题及展望[J]. 中国生态农业学报, 2017, 25(4): 605-615. |
[29] | 生态环境部, 国家市场监督管理总局. 土壤环境质量农用地土壤污染风险管控标准(试行): GB 15618-2018[S]. 北京: 中国环境科学出版社, 2018. |
[30] | 国家环境保护总局, 国家质量监督检验检疫总局. 危险废物鉴别标准 浸出毒性鉴别: GB 50853-2007[S]. 北京: 中国环境科学出版社, 2007. |
[31] | SHERMAN D M, RANDALL S R. Surface complexation of arsenic (V) to iron (III)(hydr) oxides: Structural mechanism from ab initio molecular geometries and EXAFS spectroscopy[J]. Geochimica et Cosmochimica Acta, 2003, 67(22): 4223-4230. doi: 10.1016/S0016-7037(03)00237-0 |
[32] | 费杨, 阎秀兰, 廖晓勇, 等. 铁锰双金属材料对砷和重金属复合污染土壤的稳定化研究[J]. 环境科学学报, 2016, 36(11): 4164-4172. |
[33] | KIM J Y, DAVIS A P, KIM K W. Stabilization of available arsenic in highly contaminated mine tailings using iron[J]. Environmental Science Technology, 2003, 37(1): 189-195. doi: 10.1021/es020799+ |
[34] | 荣湘民, 岳振华, 朱红梅. 湖南省几种主要菜园土铅的化学行为及其作物效应的初步研究[J]. 生态环境学报, 1996, 5(1): 27-32. |
[35] | ZHAO D L, YANG X, ZHANG H, et al. Effect of environmental conditions on Pb (II) adsorption on β-MnO2[J]. Chemical Engineering Journal, 2010, 164(1): 49-55. doi: 10.1016/j.cej.2010.08.014 |
[36] | 曾桓兴. 铁氧体共沉淀技术净化含重金属废水[J]. 环境科学, 1983, 4(4): 68-73. |
[37] | 朱丹丹, 周启星. 功能纳米材料在重金属污染水体修复中的应用研究进展[J]. 农业环境科学学报, 2018, 37(8): 1551-1564. |