六价铬污染模拟含水层的注入型黄原胶凝胶阻截屏障试验研究

张力; 赵勇胜

doi:10.16030/j.cnki.issn.1000-3665.202112043

六价铬污染模拟含水层的注入型黄原胶凝胶阻截屏障试验研究

张力^1,,
赵勇胜^1,2, ,

1.
吉林大学新能源与环境学院，吉林长春　130021

2.
石油化工污染场地控制与修复技术国家地方联合工程实验室（吉林大学），吉林长春　130021

基金项目: 国家自然科学基金项目（42072270）

详细信息

作者简介: 张力（1996-），男，硕士研究生，主要从事地下水污染阻截与修复技术研究。E-mail：cpslddzl@163.com

通讯作者: 赵勇胜（1961-），男，教授，博士生导师，主要从事污染场地的模拟控制与修复研究。E-mail：zhaoyongsheng@jlu.edu.cn

中图分类号: X523

收稿日期: 2021-12-21

修回日期: 2022-03-05

刊出日期: 2023-03-15

Experimental research on the injectable xanthan gum gel intercepting barrier of simulated Cr(VI) contaminated aquifer

ZHANG Li^1,,
ZHAO Yongsheng^1,2, ,

1.
College of New Energy and Environment, Jilin University, Changchun, Jilin　130021, China

2.
National Local Joint Engineering Laboratory of Petrochemical Pollution Site Control and Remediation Technology (Jilin University) , Changchun, Jilin　130021, China

More Information

Corresponding author: ZHAO Yongsheng, zhaoyongsheng@jlu.edu.cn

Received Date: 21 December 2021

Revised Date: 05 March 2022

Publish Date: 15 March 2023

摘要

摘要:
由于工业废物的不合理排放，大量的重金属污染物Cr(VI)进入地下环境，严重威胁着人类健康和生态环境。Cr(VI)在地下水环境中高度易迁移的特性，造成其污染修复上的困难，亟待一种绿色、经济、有效的阻截方式提高地下水对Cr(VI)的阻控能力。研究利用焦亚硫酸钠原位还原地下水中的Cr(VI)，产生Cr³⁺作为黄原胶交联剂，形成凝胶阻截屏障，探究了各类成分对凝胶时间、黏度变化的影响及凝胶屏障对含水层的阻截效果，得到如下结论：（1）在Cr(VI)质量浓度达到200 mg/L的体系中，质量分数0.4%的黄原胶溶液在1.5 h内即可形成具有一定机械强度的凝胶；（2）凝胶具有耐盐性，适用于常见含水层，2.5~5 g/L的Na⁺和K⁺对凝胶起促进作用；（3）注入型凝胶阻截屏障能够大幅降低中砂介质的渗透系数至1×10⁻⁷ cm/s，满足地下水阻截需求。注入型凝胶屏障的形成无需引入有害物质，阻截结束后注入型屏障可经生物作用自然降解，不会长期改变含水层水力条件。研究成果可为Cr(VI)污染地下水中凝胶阻截屏障的构筑提供理论基础。
- 凝胶 /
- 阻截屏障 /
- 黄原胶 /
- 含水层 /
- 六价铬
Abstract:
Due to the unreasonable discharge of industrial waste, a large amount of heavy metal pollutant Cr(VI) enters the underground environment, which seriously threatens human health and ecological environment. The high mobility of Cr(VI) in groundwater environment makes it difficult to repair. A green, economic and effective interception method is urgently needed to improve the ability of groundwater Cr(VI) pollution control. In this paper, sodium metabisulfite is selected as a reducing agent, and Cr³⁺ generated from Cr(VI) in groundwater is used as an xanthan gum crosslinking agent to form a gel blocking barrier. The influences of various components on gel time and viscosity changes and the blocking effect of gel barrier on aquifer are studied. The results indicate that (1) in the system with Cr(VI) concentration up to 200 mg/L, xanthan gum solution with 0.4% mass concentration can form gel with certain mechanical strength within 1.5 h. (2) The gel has salt resistance and is suitable for common aquifers. Na⁺ and K⁺ of 2.5−5 g/L can promote the gel. (3) The injected gel blocking barrier can significantly reduce the coefficient of permeability of medium sand media to 1×10⁻⁷ cm/s, which can meet the demand of groundwater blocking. Injection-type gel barriers are formed without the introduction of harmful substances. After the interception, injection-type gel barriers can be naturally degraded by biological action without long-term changes under the aquifer hydraulic conditions. This study provides a theoretical basis for the construction of gel barrier in chromium contaminated groundwater.
- gel /
- cutoff barrier /
- xanthan gum /
- aquifer /
- Cr(VI)

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图 1 模拟柱试验装置示意图

Figure 1.

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图 2 体系中 Cr(VI)质量浓度对凝胶时间的影响

Figure 2.

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图 3 不同质量浓度K⁺影响下凝胶基液黏度随时间变化

Figure 3.

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图 4 不同质量浓度 Na⁺影响下凝胶基液黏度随时间变化

Figure 4.

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图 5 不同质量浓度 Ca²⁺影响下凝胶基液黏度随时间变化

Figure 5.

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图 6 凝胶屏障封堵介质的渗透系数随时间的变化

Figure 6.

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参考文献(28)

[1]	DHAL B,THATOI H N,DAS N N,et al. Chemical and microbial remediation of hexavalent chromium from contaminated soil and mining/metallurgical solid waste:A review[J]. Journal of Hazardous Materials,2013,250/251:272 − 291. doi: 10.1016/j.jhazmat.2013.01.048
[2]	ZHAO Fangjie,MA Yibing,ZHU Yongguan,et al. Soil contamination in China:Current status and mitigation strategies[J]. Environmental Science & Technology,2015,49(2):750 − 759.
[3]	张进德,田磊,裴圣良. 矿山水土污染与防治对策研究[J]. 水文地质工程地质,2021,48(2):157 − 163. [ZHANG Jinde,TIAN Lei,PEI Shengliang. A discussion of soil and water pollution and control countermeasures in mining area of China[J]. Hydrogeology & Engineering Geology,2021,48(2):157 − 163. (in Chinese with English abstract) doi: 10.16030/j.cnki.issn.1000-3665.202003031
[4]	王晟,冯翔,李兵,等. 多种铁改性和未改性生物炭对模拟地下水中六价铬的去除[J]. 吉林大学学报(地球科学版),2021,51(1):247 − 255. [WANG Sheng,FENG Xiang,LI Bing,et al. Removal of hexavalent chromium from simulated groundwater by variety of iron-modified and unmodified biochars[J]. Journal of Jilin University (Earth Science Edition),2021,51(1):247 − 255. (in Chinese with English abstract)
[5]	WU Yihan,PANG Hongwei,LIU Yue,et al. Environmental remediation of heavy metal ions by novel-nanomaterials:A review[J]. Environmental Pollution,2019,246:608 − 620. doi: 10.1016/j.envpol.2018.12.076
[6]	ZOU Yidong,WANG Xiangxue,KHAN A,et al. Environmental remediation and application of nanoscale zero-valent iron and its composites for the removal of heavy metal ions:A review[J]. Environmental Science & Technology,2016,50(14):7290 − 7304.
[7]	LIU Lianwen,LI Wei,SONG Weiping,et al. Remediation techniques for heavy metal-contaminated soils:Principles and applicability[J]. Science of the Total Environment,2018,633:206 − 219. doi: 10.1016/j.scitotenv.2018.03.161
[8]	ZHOU Rui,SUN He,HOU Zhimin,et al. Light transmission method to explore the migration and distribution of Cr(VI) in a sandy aquifer[J]. Environmental Earth Sciences,2018,77(6):255. doi: 10.1007/s12665-018-7435-1
[9]	ZHANG Yu,TANG Qiang,SHI Peixin,et al. Influence of bio-clogging on permeability characteristics of soil[J]. Geotextiles and Geomembranes,2021,49(3):707 − 721. doi: 10.1016/j.geotexmem.2020.11.010
[10]	PENSINI E,ELSAYED A,MACIAS RODRIGUEZ B,et al. In situ trapping and treating of hexavalent chromium using scleroglucan-based fluids:A proof of concept[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects,2018,559:192 − 200.
[11]	KIM M,CORAPCIOGLU M Y. Gel barrier formation in unsaturated porous media[J]. Journal of Contaminant Hydrology,2002,56(1/2):75 − 98.
[12]	KIM M,CORAPCIOGLU M Y. Modeling of gel barrier formation by using colloidal silica in saturated media[J]. Environmental Technology,2003,24(4):517 − 529. doi: 10.1080/09593330309385586
[13]	DEHGHAN H,TABARSA A,LATIFI N,et al. Use of xanthan and guar gums in soil strengthening[J]. Clean Technologies and Environmental Policy,2019,21(1):155 − 165. doi: 10.1007/s10098-018-1625-0
[14]	SIWIK A,PENSINI E,ELSAYED A,et al. Natural guar,xanthan and carboxymethyl-cellulose-based fluids:Potential use to trap and treat hexavalent chromium in the subsurface[J]. Journal of Environmental Chemical Engineering,2019,7(1):102807. doi: 10.1016/j.jece.2018.11.051
[15]	KUMAR S A,SUJATHA E R,PUGAZHENDI A,et al. Guar gum-stabilized soil:A clean,sustainable and economic alternative liner material for landfills[J]. Clean Technologies and Environmental Policy,2021:1 − 19.
[16]	ARMISTEAD S J,RAWLINGS A E,SMITH C C,et al. Biopolymer stabilization/solidification of soils:A rapid,micro-macro,cross-disciplinary approach[J]. Environmental Science & Technology,2020,54(21):13963 − 13972.
[17]	GIOIA F,CIRIELLO P P. The containment of oil spills in porous media using xanthan/aluminum solutions,gelled by gaseous CO₂ or by AlCl₃ solutions[J]. Journal of Hazardous Materials,2006,138(3):500 − 506. doi: 10.1016/j.jhazmat.2006.05.095
[18]	ZHANG Guicai,CHEN Lifeng,GE Jijiang,et al. Experimental research of syneresis mechanism of HPAM/Cr³⁺ gel[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects,2015,483:96 − 103.
[19]	REN Liming,WANG Ruoyu,QIN Bing,et al. Enhanced remediation efficiency of Cr(VI)-contaminated heterogeneous aquifers:Improved sweeping efficiency using shear-thinning fluids[J]. Chemosphere,2021,273:129675. doi: 10.1016/j.chemosphere.2021.129675
[20]	佟卉,苏程,毛绍祺,等. 油田用铬交联聚合物凝胶研究进展综述[J]. 化学工程师,2021,35(2):43 − 47. [TONG Hui,SU Cheng,MAO Shaoqi,et al. Research progress of chromium cross-linked polymer gel used in oilfield[J]. Chemical Engineer,2021,35(2):43 − 47. (in Chinese with English abstract) doi: 10.16247/j.cnki.23-1171/tq.20210243
[21]	GIOIA F,URCIUOLO M. The containment of oil spills in unconsolidated granular porous media using xanthan/Cr(III) and xanthan/Al(III) gels[J]. Journal of Hazardous Materials,2004,116(1/2):83 − 93.
[22]	PENSINI E,RODRIGUEZ B M,MARANGONI A G,et al. Shear rheological properties of composite fluids and stability of particle suspensions:Potential implications for fracturing and environmental fluids[J]. The Canadian Journal of Chemical Engineering,2019,97(9):2395 − 2407. doi: 10.1002/cjce.23486
[23]	TELEPANICH A,MARSHALL T,GREGORI S,et al. Graphene-alginate fluids as unconventional electrodes for the electrokinetic remediation of Cr(VI)[J]. Water,Air,& Soil Pollution,2021,232(8):334.
[24]	李红,孙辉,张冲,等. 焦亚硫酸钠-石灰法处理含铬废水的研究[J]. 辽宁化工,2020,49(6):631 − 633. [LI Hong,SUN Hui,ZHANG Chong,et al. Study on treatment of chromium-containing wastewater by sodium metabisulfite-lime method[J]. Liaoning Chemical Industry,2020,49(6):631 − 633. (in Chinese with English abstract) doi: 10.3969/j.issn.1004-0935.2020.06.008
[25]	雷迅,吴咚咚,郑融融,等. 焦亚硫酸钠对电镀废水六价铬和化学需氧量浓度值影响效果的探讨[J]. 当代化工研究,2020(4):131 − 132. [LEI Xun,WU Dongdong,ZHENG Rongrong,et al. Discussion the effect of sodium pyrosulfite to Cr⁶⁺ and chemical oxygen demand in the electroplating wastewate[J]. Modern Chemical Research,2020(4):131 − 132. (in Chinese with English abstract) doi: 10.3969/j.issn.1672-8114.2020.04.061
[26]	MCCOOL C S,GREEN D W,WILLHITE G P. Fluid/rock interactions between xanthan/chromium(III) gel systems and dolomite core material[J]. SPE Production & Facilities,2000,15(3):159 − 167.
[27]	李琴. 地下水污染膨润土/水泥/粘土系原位阻截材料防渗与兼容性能研究[D]. 长春: 吉林大学, 2020. LI Qin. Study on containment performance and chemical compatibility of bentonite/cement/clay based in-situ barrier materials for groundwater pollution[D]. Changchun: Jilin University, 2020. （in Chinese with English abstract）
[28]	韩慧慧. 利用弱凝胶强化修复试剂在低渗透地层中的迁移研究[D]. 长春: 吉林大学, 2019 HAN Huihui. Study on enhancing the migration of the remediation agents in low permeability formation by using weak gel[D]. Changchun: Jilin University, 2019. （in Chinese with English abstract）