|本期目录/Table of Contents|

[1]蓝莫茗,张鹏,高艺纯,等.大宝山排土场植物稳定修复对模拟酸雨重金属淋溶的响应[J].应用与环境生物学报,2019,25(03):473-481.[doi:10.19675/j.cnki.1006-687x.201812063]
 LAN Moming,,et al.Phytostabilization response in polymetallic soil contaminated with heavy metal leaching using?a simulated acidic rainfall in the Dabao mountain mine dump[J].Chinese Journal of Applied & Environmental Biology,2019,25(03):473-481.[doi:10.19675/j.cnki.1006-687x.201812063]
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大宝山排土场植物稳定修复对模拟酸雨重金属淋溶的响应()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年03期
页码:
473-481
栏目:
重金属污染及生物修复专栏
出版日期:
2019-06-25

文章信息/Info

Title:
Phytostabilization response in polymetallic soil contaminated with heavy metal leaching using?a simulated acidic rainfall in the Dabao mountain mine dump
作者:
蓝莫茗张鹏高艺纯杨文俊汤叶涛仇荣亮
1中山大学环境科学与工程学院 广州 510275 2广东省环境污染控制与修复技术重点实验室(中山大学) 广州 510275 3广东省土壤重金属污染修复工程技术研究中心(中山大学) 广州 510275
Author(s):
LAN Moming1 2 3 ZHANG Peng1 2 3 GAO Yichun1 2 3 YANG Wenjun1 2 3 TANG Yetao1 2 3** & QIU Rongliang1 2 3
1 School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China 2 Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou 510275, China 3 Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510275, China
关键词:
大宝山排土场淋溶红麻 苎麻重金属有效态
Keywords:
Dabao mountain mine dump leaching kenaf ramie available heavy metal
分类号:
X53
DOI:
10.19675/j.cnki.1006-687x.201812063
摘要:
以广东省韶关市大宝山排土场多金属重度污染土壤为研究对象,通过模拟酸雨淋溶实验,探究淋溶对植物稳定修复(土壤改良+种植红麻/苎麻)后土壤重金属迁移的影响. 结果表明,在土柱上层(0-10 cm)土壤中施加0.4%石灰+0.2%有机肥,能显著提高淋出液pH值,并大幅度降低0-10 cm土壤中的重金属有效态含量;种植红麻和苎麻处理后,淋出液pH值较空白组显著提高,淋溶液淋失量相较于空白处理分别减少了32.5%和12.4%,淋出液中铅、锌、铜、镉重金属含量分别降低了65.2%和71.3%、81.6%和78.5%、79.4%和71.7%以及86.7%和85.3%;且种植红麻、苎麻后,土柱下层(21-30 cm)的土壤铅、锌、铜、镉重金属有效态含量相较于空白处理分别降低了16.3%和22.9%、30.5%和17.9%、18.8%和32.5%以及38.1%和29.7%. 因此,种植红麻、苎麻不仅能显著降低径流淋溶失量,而且降低了淋出液中重金属含量,减轻了淋出液对地下水造成的污染;在模拟酸性降雨条件下,种植红麻、苎麻并施用改良剂处理重金属污染土壤的模式在植物稳定修复方面具有较好的应用潜力. (图7 表6 参42)
Abstract:
The soil of Dabao mountain mine dump in Shaoguan, Guangdong has been severely contaminated by heavy metals. Using a leaching experiment with simulated local acidic rainfall, the effect of soil amendment and plantation of kenaf (Hibiscus cannabinus) and ramie (Boehmeria nivea L.) on the migration of heavy metal was studied. The result showed that the addition of 0.4% lime and 0.2% organic fertilizer to the soil column (0-10 cm) significantly increased the pH of leaching solution and greatly reduced the available heavy metal content in the soil column. After planting kenaf and ramie, the pH of leachate was significantly higher than that of the blank group while the leaching loss in leachate decreased by 32.5% and 12.4%, respectively. The decrease in Pb, Zn, Cu, and Cd content in the leachate as a result of planting kenaf and ramie was 65.2% and 71.3%, 81.6% and 78.5%, 79.4% and 71.7%, 86.7% and 85.3%, respectively, compared with the blank treatment. After planting kenaf and ramie, compared with the blank treatment, the availability of Pb, Zn, Cu, and Cd in the lower layer of soil column (21-30 cm) decreased by 16.3% and 22.9%, 30.5% and 17.9%, 18.8% and 32.5%, 38.1% and 29.7%, respectively, compared with the blank treatment. Planting kenaf?and ramie can not only reduce the leaching loss significantly, but also?cut down the heavy metal concentration in leachate, thereby reducing?the?pollution of groundwater caused by leachate. A study of the pattern of planting kenaf and ramie and applying it to treat heavy metal-contaminated soil using simulated acidic rainfall has great utilization potential in phytostabilization.

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更新日期/Last Update: 2019-06-25