APPLICATION OF COMBINED GEOPHYSICAL METHODS IN THE EXPLORATION FOR HIGH QUALITY GROUNDWATER IN Fe AND Mn IONS-ENRICHED AREAS
-
摘要:
黑龙江抚远地区位于三江平原东部,地下水资源丰富,就水量而言可以满足农业灌溉和生活用水需求.但受地质环境影响,该区第四系孔隙浅水中Fe、Mn离子含量偏高,区内非集中供水均采取该水层.长期饮用Fe、Mn离子超标水,已经严重的影响了居民生活质量.本次寻找优质水源勘查工作,采用成熟的高密度电阻率法与激电测深组合的方法,针对高铁、锰的地质环境,对第四系下伏新近系含水层进行探究,查明富水层分布特征.通过探采结合验证,说明设计组合物探方法合适,有效在团结村寻找到优质的水层,新层位水质分析结果符合饮用水标准,为重碳酸钙钠型极软弱碱性淡水.
Abstract:Fuyuan area of Heilongjiang Province in the east of the Sanjiang Plain is with abundant groundwater resources that meet the local needs of agricultural and domestic water in volume. However, due to the geological environment, the Fe and Mn ion contents is high in the Quaternary shallow water layer, which is extracted for non-concentrated drinking water supply in the area. The over standard water has seriously affected the life quality of residents. In this survey for high-quality water source, the sophisticated methods of high-density resistivity and IP sounding are combined to explore the Neogene aquifer under the Quaternary cover. With exploration and mining, it is proved that the designed combination of geophysical methods is suitable and effective. The test shows that the found aquifer belongs to sodium bicarbonate type with low salinity and weak alkaline, qualified for drinking water standard.
-
-
表 1 生活饮用水卫生标准与地下水分析结果对照表
Table 1. Comparison of groundwater water analysis with drinking water standard
指标 限值 分析结果 微生物指标 (略) 毒理指标 氟化物/(mg/L) 1.2* 0.11 硫酸盐/(mg/L) 300* < 2 硝酸盐(以N计)/(mg/L) 20* 0.045 氨氮(以N计)/(mg/L) 0.5 0.42 感官性状和一般化学指标 pH 6.5~8.5 8.01 铁/(mg/L) 0.5* 0.48 锰/(mg/L) 0.3* 0.06 氯化物/(mg/L) 300* < 1 溶解性总固体/(mg/L) 1500* 总硬度(以CaCO3计)/(mg/L) 550* 测试单位:自然资源部东北矿产资源监督检测中心.注:*为国标农村小型集中式供水的限值. -
[1] 傅良魁.电法勘探教程[M].北京: 地质出版社, 1990: 7-14, 115-117.
[2] 李金铭.激发极化法方法技术指南[M].北京:地质出版社, 2004:88-103.
[3] 刘晓民, 刘廷玺, 万峥.高密度电阻率法在水文地质勘查中的应用[J].中国水利水电科学研究院学报, 2007, 5(2):154-157. doi: 10.3969/j.issn.1672-3031.2007.02.013
[4] 苏永军, 梁建刚, 张国利, 等.不同电法组合在找水中的应用[J].物探与化探, 2014, 38(5):925-928. http://d.old.wanfangdata.com.cn/Periodical/wtyht201405011
[5] 龙凡, 韩天成.激电法在地下水探测中的应用效果[J].物探与化探, 2002, 26(6):422-424, 432. doi: 10.3969/j.issn.1000-8918.2002.06.003
[6] 黄国民, 李世平, 陶毅, 等.广西碎屑岩地区电法找水实例[J].物探与化探, 2019, 43(1):77-83. http://d.old.wanfangdata.com.cn/Periodical/wtyht201901009
[7] 梁建刚, 刘黎东, 高学生, 等.电阻率法和激发极化法在地下水勘查中的应用[J].物探化探计算技术, 2014, 36(4):415-420. doi: 10.3969/j.issn.1001-1749.2014.04.07
[8] 陆云祥, 陈建荣, 陈华根, 等.我国多参数激电测深找水应用综述[J].地球物理学进展, 2011, 26(4):1448-1456. doi: 10.3969/j.issn.1004-2903.2011.04.041
[9] 许小强, 程顺有.地球物理找水方法概述[J].地下水, 2007, 29(3):28-29. doi: 10.3969/j.issn.1004-1184.2007.03.011
[10] 张振杰, 胡潇, 谢慧.直流电测深法优化组合在河西走廊山前戈壁区的找水效果[J].物探与化探, 2018, 42(6):1186-1193. http://d.old.wanfangdata.com.cn/Periodical/wtyht201806012
[11] 柳建新, 刘海飞, 马捷.直流激电测深多参数综合分析划分含水异常岩体[J].煤田地质与勘探, 2005, 33(3):74-77. doi: 10.3969/j.issn.1001-1986.2005.03.023
[12] 杨桂林, 刘金涛, 王柱.直流电测深数据处理方法在地下水勘探中的应用效果[J].资源环境与工程, 2018, 22(6):610-613. http://d.old.wanfangdata.com.cn/Periodical/hbdk200806013
-