Experimental Study on Investigation Method of Soil Pollution in Typical Pyrite Mining Area in South Sichuan
-
摘要:
针对川南典型硫铁矿区特殊的景观地球化学条件和土壤特征，在矿区污染评价中开展土壤调查方法实验。运用多元统计分析、显著性检验、污染负荷指数计算等多种方法，并结合元素地球化学性质综合对比研究元素在不同层位、不同粒级土壤中的富集和分布特征。研究表明，不同层位之间元素富集特征具有显著差异性，采样层位是影响元素总体富集程度的重要因素，表层土壤具有更高的元素总体富集程度，反映矿区污染特征的亲硫元素组合在粗粒级土壤中具有更明显的分布倾向性。建议优选区域适宜性较高采样层位为表层土（0~10 cm），样品制备粒级为-2.00 mm。
Abstract:According to the special geochemical landscape and soil characteristics of typical pyrite mining areas in southern Sichuan, soil investigation method test was carried out in the pollution assessment of mining areas. The enrichment and distribution characteristics of elements in different soil horizon and size fraction were studied by multivariate statistical analysis, significance test, pollution load index calculation and other methods combined with element geochemical analysis. The results show that there are significant differences in the enrichment characteristics of elements among soil horizon. The sampling horizon is an important factor affecting the overall enrichment of elements. The surface soil has a higher overall enrichment degree of elements, and the sulfur element combination has a more obvious distribution tendency in coarse-grained soil. It is suggested that the area with high suitability should be selected, the sampling horizon should be surface (0~10 cm), and the particle size of sample preparation should be -2.00 mm.
-
Key words:
- Soil pollution /
- Pyrite /
- Experiment of soil sampling /
- Size fraction
-
-
表 1 各层位粒级土壤元素地球化学特征/(mg·kg-1)
Table 1. Element geochemical characteristics in different sampling layers and size fractions
元素 层位粒级 最大值 最小值 中位数 平均值 含量总和 富集系数 Mn TS10 5470 412 1620 1640.5 178811 2.52 TS20 5480 397 1650 1678.6 182968 2.58 SS10 5880 337 1640 1645.9 179401 2.53 SS20 5740 355 1660 1695.6 184823 2.61 Cu TS10 298 16.4 103 95.78 10440 3.22 TS20 304 16.5 105 95.56 10416 3.22 SS10 295 16.5 98.5 94.57 10308 3.18 SS20 301 17.8 102 95.52 10411 3.22 Pb TS10 68.3 20.3 42.5 42.85 4670 1.48 TS20 93.1 23.2 43.7 44.25 4824 1.53 SS10 71.4 18.1 40.6 41.33 4505 1.43 SS20 73.5 17.2 41.7 42.32 4613 1.46 Zn TS10 215 83.9 144 140.3 15297 2.82 TS20 224 82.3 145 140.9 15361 2.83 SS10 195 83 139 136.3 14858 2.74 SS20 197 82.1 140 137.0 14934 2.75 Cr TS10 389 104 183 189.0 20598 2.56 TS20 388 98.2 179 182.5 19895 2.48 SS10 517 99.8 180 192.2 20949 2.61 SS20 467 96.8 176 185.0 20166 2.51 Ni TS10 219 31.6 71.6 73.73 8036 2.37 TS20 223 32.1 69.0 72.58 7911 2.33 SS10 212 28.8 67.3 73.48 8009 2.36 SS20 230 31.6 68.7 73.45 8007 2.36 Cd TS10 20.8 0.21 1.57 2.02 220.4 26.9 TS20 19.4 0.18 1.58 1.96 214.0 26.1 SS10 21.2 0.13 1.46 1.90 206.6 25.3 SS20 20.4 0.17 1.36 1.90 207.2 25.3 Mo TS10 9.13 0.85 2.53 2.99 325.8 4.98 TS20 8.24 0.81 2.47 2.97 324.0 4.95 SS10 9.33 0.71 2.47 2.98 324.8 4.97 SS20 10.8 0.82 2.44 3.03 330.4 5.05 As TS10 27.8 2.66 12.6 13.56 1478 1.46 TS20 29.3 3.09 12.6 13.38 1459 1.44 SS10 29.9 2.33 11.9 13.40 1460 1.44 SS20 29.7 2.46 12.5 13.11 1428 1.41 Sb TS10 3.33 0.32 1.33 1.33 145.1 1.18 TS20 3.59 0.36 1.35 1.33 144.7 1.18 SS10 3.59 0.33 1.32 1.35 147.3 1.19 SS20 3.49 0.29 1.32 1.33 145 1.18 Hg TS10 0.48 0.04 0.19 0.20 21.5 5.06 TS20 0.52 0.02 0.2 0.20 22 5.06 SS10 0.55 0.03 0.19 0.21 22.5 5.32 SS20 0.51 0.02 0.2 0.20 22.3 5.06 V TS10 615 138 288 298.3 32517 3.22 TS20 600 134 281 294.7 32126 3.18 SS10 818 137 281 301.1 32822 3.25 SS20 772 142 278 299.3 32620 3.23 Se TS10 3.43 0.55 1.44 1.55 168.7 19.0 TS20 4.53 0.56 1.46 1.57 171.6 19.3 SS10 3.86 0.41 1.33 1.44 157.1 17.7 SS20 4.08 0.45 1.45 1.53 167 18.8 F TS10 5740 291 559 814.3 88753 3.19 TS20 5730 239 554 797.3 86909 3.13 SS10 6250 276 559 810.0 88287 3.18 SS20 5980 272 570 772.6 84214 3.03 S TS10 2600 110 540 607.8 66249 4.05 TS20 3700 160 550 647.0 70519 4.31 SS10 2800 97 530 589.2 64225 3.93 SS20 3100 81 532 579.5 63165 3.86 背景值为《中国土壤元素背景值》中四川省A层土壤各元素背景值 
下载: 导出CSV
表 2 各层位粒级土壤总体污染负荷指数
Table 2. Pollution Load Index from different sampling layers and size fractions
层位、粒级 TS10 TS20 SS10 SS20 
3.16 3.17 3.09 3.10
下载: 导出CSV
表 3 表层土中不同粒级各元素显著性检验结果
Table 3. Significant test between different size fractions in topsoil
元素 As Cd Cr Cu F Hg Mn Mo TS10与TS20 0.015* 0.538 0.000* 0.728 0.245 0.054 0.000* 0.011* 元素 Ni Pb S Sb Se V Zn - TS10与TS20 0.087 0.000* 0.024* 0.944 0.155 0.000* 0.033* - 注：表中*在0.05水平时存在显著性差异
下载: 导出CSV
表 4 亚表层土中不同粒级各元素显著性检验结果
Table 4. Significant test between different size fractions in subsoil
元素 As Cd Cr Cu F Hg Mn Mo SS10与SS20 0.835 0.365 0.000* 0.084 0.946 0.264 0.000* 1.000 元素 Ni Pb S Sb Se V Zn - SS10与SS20 0.025* 0.000* 0.733 0.107 0.000* 0.001* 0.227 - 注：表中*在0.05水平时存在显著性差异
下载: 导出CSV
表 5 实验数据因子分析特征
Table 5. Principal component analysis of experiment data
粒级 因子 因子主成分 特征值 粒级 因子 因子主成分 特征值 TS10 F1 As、Cd、Hg、Mo、Pb、Sb 5.17 TS20 F1 As、Cd、Hg、Mn、Mo、Pb、Sb 5.35 F2 Cr、Cu、Ni、V 3.52 F2 Cr、Cu、Ni、V 3.38 F3 F、Mn、Zn 1.53 F3 F、Mo、Zn 1.58 F4 S、Se 1.28 F4 S、Se 1.36
下载: 导出CSV
-
[1] 高德政, 周开灿, 冯启明, 等. 川南硫铁矿开发中的环境污染与治理[J]. 矿产综合利用, 2001(4):23-27. doi: 10.3969/j.issn.1000-6532.2001.04.006
GAO D Z, ZHOU K C, FENG Q M, et al. Environmental pollution and harness of exploitating pyrite in South Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2001(4):23-27. doi: 10.3969/j.issn.1000-6532.2001.04.006
[2] 张渊, 洪秉信. 川南硫铁矿尾矿的工艺性质与综合利用[J]. 矿产综合利用, 2006(5):21-24. doi: 10.3969/j.issn.1000-6532.2006.05.006
ZHANG Y, HONG B X. Technological properties and comprehensive utilization of the pyrite tailings in South Sichan[J]. Multipurpose Utilization of Mineral Resources, 2006(5):21-24. doi: 10.3969/j.issn.1000-6532.2006.05.006
[3] 邓敏, 程蓉, 舒荣波, 等. 攀西矿区典型重金属污染土壤化学-微生物联合修复技术探索[J]. 矿产综合利用, 2021(4):1-9. doi: 10.3969/j.issn.1000-6532.2021.04.001
DENG M, CHENG R, SHU R B, et al. Exploration of chemical-microbial combined remediation technology for typical heavy metals-contaminated soils in Panxi Mining Region[J]. Multipurpose Utilization of Mineral Resources, 2021(4):1-9. doi: 10.3969/j.issn.1000-6532.2021.04.001
[4] 冉银华, 张志明, 李强. 滇西某尾矿回收硫铁矿物的试验研究[J]. 矿产综合利用, 2019(1):119-122. doi: 10.3969/j.issn.1000-6532.2019.01.026
RAN Y H, ZHANG Z M, LI Q. Experimental study on the recovery of pyrite from tailings in Western Yunnan[J]. Multipurpose Utilization of Mineral Resources, 2019(1):119-122. doi: 10.3969/j.issn.1000-6532.2019.01.026
[5] 李瑞娟, 周冰. 安徽铜陵铜尾矿土壤污染评价及综合利用研究[J]. 矿产综合利用, 2021(4):36-40. doi: 10.3969/j.issn.1000-6532.2021.04.006
LI R J, ZHOU B. Study on soil pollution evaluation and multipurpose utilization of copper tailings in Tongling, Anhui[J]. Multipurpose Utilization of Mineral Resources, 2021(4):36-40. doi: 10.3969/j.issn.1000-6532.2021.04.006
[6] 李杰锋. 煤矿复垦区土壤重金属形态分布与富集污染研究[J]. 矿产综合利用, 2022(1):116-120,163. doi: 10.3969/j.issn.1000-6532.2022.01.014
LI J F. Study on distribution of heavy metals in soil and concentrated pollution in coal mine reclamation area[J]. Multipurpose Utilization of Mineral Resources, 2022(1):116-120,163. doi: 10.3969/j.issn.1000-6532.2022.01.014
[7] 何永彬, 张信宝, 李豪. 喀斯特白云岩坡地土壤异质性特征与土壤保育模式研究[J]. 地球与环境, 2013, 41(1):77-81.
HOU Y B, ZHANG X B, LI H. Research on soil heterogeneous characteristics and soil conservative model for Karst dolomite slope land[J]. Earth and Environment, 2013, 41(1):77-81.
[8] 张川东. 基于石灰土物理性质的喀斯特山地生态环境评价——以黔中花溪区、小河区为例[D]. 贵州: 贵州大学, 2009.
ZHANG C D. Evaluation of karst mountain ecological environment based on physical properties of lime soil[D]. Guizhou: Guizhou University, 2009.
[9] Bavec Š, Gosar M, Biester H, et al. Geochemical investigation of mercury and other elements in urban soil of Idrija (Slovenia)[J]. Journal of Geochemical Exploration, 2015, 154:213-223. doi: 10.1016/j.gexplo.2014.10.011
[10] Xiangdong L, Chi-sun P, Pui S L. Heavy metal contamination of urban soils and street dusts in Hong Kong[J]. Applied Geochemistry, 2001, 16(11).
[11] Kelly J, Thornton I, Simpson P R. Urban Geochemistry: a study of the influence of anthropogenic activity on the heavy metal content of soils in traditionally industrial and non-industrial areas of Britain[J]. Applied Geochemistry, 1996, 11(1):363-370.
[12] 徐争启, 倪师军, 张成江, 等. 应用污染负荷指数法评价攀枝花地区金沙江水系沉积物中的重金属[J]. 四川环境, 2004, 23(3):64-67. doi: 10.3969/j.issn.1001-3644.2004.03.019
XU Z Q, NI S J, ZHANG C J, et al. Assessment on heavy metals in the sediments of Jinsha River in Panzhihua Area by pollution load index[J]. Sichuan Environment, 2004, 23(3):64-67. doi: 10.3969/j.issn.1001-3644.2004.03.019
[13] 刁理品, 韩润生, 方维萱. 贵州西南部普安-晴隆一带锑金矿勘查区沟系土壤地球化学测量试验[J]. 地质通报, 2010, 29(11):1712-1720. doi: 10.3969/j.issn.1671-2552.2010.11.014
DIAO L P, HAN R S, FANG W X. Experiment of soil geochemical survey of valley in the Pu’an-Qinglong antimony-gold exploration area, southwestern Guizhou, China[J]. Geological Bulletin of China, 2010, 29(11):1712-1720. doi: 10.3969/j.issn.1671-2552.2010.11.014
-
图(3)
表(5)
计量
- 文章访问数: 355
- PDF下载数: 14
- 施引文献: 0