黄原胶改性微米铁修复地下水中Cr(Ⅵ)污染的试验

doi:10.13278/j.cnki.jjuese.20200086

摘要/Abstract

摘要： 为了解决微米铁的重力沉降问题，提高微米铁修复地下水Cr（Ⅵ）污染的原位修复效果，本文利用黄原胶对微米铁进行改性，并通过沉降实验探究改性微米铁浆液的稳定性，同时选择Cr（Ⅵ）作为目标污染物，探究黄原胶改性微米铁去除地下水Cr（Ⅵ）污染的降解能力。实验结果显示：当黄原胶的投加质量浓度分别为0.0、1.0、1.5、2.0、2.5、3.0、6.0 g/L时，改性微米铁浆液的悬浮稳定性逐渐得到加强，在5 h沉降实验结束时，对应的相对分光光度值分别为0.05、0.25、0.46、0.57、0.65、0.73和0.87；黄原胶具有抑制微米铁吸附Cr（Ⅵ）的能力，其可促进Cr（Ⅵ）的还原，提高Cr（Ⅵ）的去除率；随着黄原胶投加质量浓度的增加，对应的Cr（Ⅵ）去除率分别为33.4%、41.2%、47.4%、51.1%、53.0%、63.9%和64.1%；6.0 g/L黄原胶改性的微米铁浆液具有最佳的悬浮稳定性，黄原胶的投加提高了微米铁的反应活性，但当黄原胶投加质量浓度超过3.0 g/L时，其对Cr（Ⅵ）的去除率没有显著提高；黄原胶投加质量浓度越大，黄原胶的缓冲作用就越明显。

关键词: 地下水, 改性微米铁, 黄原胶, Cr(Ⅵ), 污染修复

Abstract: In order to solve the gravity sedimentation problem of micron iron, this paper uses xanthan gum to modify the micron iron. The stability of the modified micro iron slurry was explored through sedimentation experiments and the degradation ability was explored by removing Cr(Ⅵ) pollutant. The results show that when the dosages of xanthan gum are 0.0, 1.0, 1.5, 2.0, 2.5, 3.0, 6.0 g/L respectively, the corresponding relative spectrophotometric values are 0.05, 0.25, 0.46, 0.57, 0.65, 0.73, 0.87 at the end of 5 h sedimentation experiment. The suspension stability of the modified micro iron slurry is gradually strengthened with the increase of the mass concentration of xanthan. Xanthan has the ability to inhibit the adsorption of Cr(Ⅵ) by micron iron, which can promote the reduction of Cr(Ⅵ) and improve the removal rate. With the increase of the concentration of xanthan gum, the corresponding Cr(Ⅵ) removal rates are 33.37%, 41.23%, 47.45%, 51.05%, 52.97%, 63.91% and 64.08%, respectively. It can be seen from the results that 6.0 g/L xanthan gum modified micron iron slurry has the best suspension stability and the addition of xanthan gum improves the reactivity of micron iron. However, when the mass concentration of xanthan gum exceeds 3.0 g/L, the removal rate of Cr(Ⅵ) is not significantly improved. The greater the concentration of xanthan gum, the more obvious the buffering effect of xanthan gum.

Key words: groudwater, modified micron iron, xanthan gum, Cr (Ⅵ), pollution remediation

中图分类号:

X523

赵勇胜, 李彧. 黄原胶改性微米铁修复地下水中Cr(Ⅵ)污染的试验[J]. 吉林大学学报(地球科学版), 2021, 51(4): 1224-1230.

Zhao Yongsheng, Li Yu. Study on Xanthan Gum Modified Micron Iron Slurry for Remediation of Cr(Ⅵ) Polluted Groundwater[J]. Journal of Jilin University(Earth Science Edition), 2021, 51(4): 1224-1230.

参考文献

[1] Wang T, Zhang L, Li C, et al. Synthesis of Core-Shell Magnetic Fe₃O₄@poly(m-Phenylenediamine) Particles for Chromium Reduction and Adsorption[J]. Environmental Science & Technology, 2015, 49:5654-5662.
[2] Troiano J M, Jordan D S, Hull C J, et al. Interaction of Cr(III) and Cr(Ⅵ) with Hematite Studied by Second Harmonic Generation[J]. The Journal of Physical Chemistry, 2013, 117:5164-6171.
[3] Vinod V T, Sashidhar B. Biosorption of Nickel and Total Chromium from Aqueous Solution by Gum Kondagogu (Cochlospermum Gossypium):A Carbohydrate Biopolymer[J]. Journal of Hazardous Materials, 2010, 178:851-860.
[4] 洪梅,任璇,杨慧萍. 稳定型与负载型FeS修复Cr(Ⅵ)污染地下水的可行性[J]. 吉林大学学报(地球科学版),2020,50(4):1182-1188. Hong Mei, Ren Xuan, Yang Huiping. Remediation of Cr(Ⅵ) Contaminated Groundwater by Stable and Loaded FeS[J]. Journal of Jilin University (Earth Science Edition),2020,50(4):1182-1188.
[5] Crane R A, Scott T B. Nanoscale Zero-Valent Iron:Future Prospects for an Emerging Water Treatment Technology[J]. Journal of Hazardous Materials, 2012, 211/212:112-125.
[6] Grieger K D, Fjordboge A, Hartmann N B, et al. Environmental Benefits and Risks of Zero-Valent Iron Nanoparticles (nZVI) for in Situremediation:Risk Mitigation or Trade-Off[J]. Journal of Contaminant Hydrology, 2010, 118(3/4):165-183.
[7] Kirschling T L, Gregory K B, Minkley J E G, et al. Impact of Nanoscale Zero Valent Iron on Geochemistry and Microbial Populations in Trichloroethylene Contaminated Aquifer Materials[J]. Environmental Science & Technology, 2010, 44(9):3474-3480.
[8] Kirschling T L, Golas P L, Unrine J M, et al. Microbial Bioavailability of Covalently Bound Polymer Coatings on Model Engineered Nanomaterials[J]. Environmental Science & Technology, 2011, 45(12):5253-5259.
[9] Phenrat T, Long T C, Lowry G V, et al. Partial Oxidation ("Aging") and Surface Modification Decrease the Toxicity of Nanosized Zerovalent Iron[J]. Environmental Science & Technology, 2009, 43:195-200.
[10] Comba S, Sethi R. Stabilization of Highly Concentrated Suspensions of Iron Nanoparticles Using Shear-Thinning Gels of Xanthan Gum[J]. Water Research, 2009, 43(15):3717-3726.
[11] Lee C, Kim J Y, Lee W I, et al. Bactericidal Effect of Zerovalent Iron Nanoparticles on Escherichia Coli[J]. Environmental Science & Technology, 2008, 42:4927-4933.
[12] Cantrell K J, Kaplan D I, Gilmore T J. Injection of Colloidal Fe⁰ Particles in Sand with Shear-Thinning Fluids[J]. Journal of Environmental Engineering, 1997, 123:786-791.
[13] Comba S, Braun J. An Empirical Model to Predict the Distribution of Iron Micro-Particles Around an Injection Well in a Sandy Aquifer[J]. Journal of Contaminant Hydrology, 2012, 132:1-11.
[14] Oostrom M, Wietsma T W, Covert M A, et al. Zero-Valent Iron Emplacement in Permeable Porous Media Using Polymer Additions[J]. Ground Water Monitoring and Remediation, 2007, 27:122-130.
[15] Vecchia E D, Luna M, Sethi R. Transport in Porous Media of Highly Concentrated Iron Micro- and Nanoparticles in the Presence of Xanthan Gum[J]. Environmental Science & Technology, 2009, 43(23):8942-8947.
[16] Tosco T, Gastone F, Sethi R. Guar Gum Solutions for Improved Delivery of Iron Particles in Porous Media:Part 2:Iron Transport Tests and Modeling in Radial Geometry[J]. Journal of Contaminant Hydrology, 2014, 166:34-51.
[17] Xin J, Han J, Zheng X, et al. Mechanism Insights into Enhanced Trichloroethylene Removal Using Xanthan Gum-Modified Microscale Zero-Valent Iron Particles[J]. Journal of Environmental Management, 2015, 150:420-426.
[18] Velimirovic M, Chen H, Simons Q, et al. Reactivity Recovery of Guar Gum Coupled mZVI by Means of Enzymatic Breakdown and Rising[J]. Journal of Contaminant Hydrology, 2012, 142/143:1-10.
[19] 韩军. 改性微米铁对三氯乙烯的去除效能研究[D]. 青岛:中国海洋大学, 2015. Han Jun.Study on the Removal Efficiency of Modified Micron Iron on Trichloroethylene[D]. Qingdao:Ocean University of China, 2015.
[20] Liu C C, Tseng D H, Wang C Y. Effects of Ferrous Irons on the Reductive Dechlorination of Thrichlore Thylene by Zero-Valent Iron[J]. Journal of Hazardous Materials, 2006, 136(3):706-713.

相关文章 15

[1]	杜新强, 尹呈杉, 方永军, 李孜涵, 郭辉. 基于地下水生态水位埋深阈值的可开采量评价——以三江平原普阳灌区为例[J]. 吉林大学学报(地球科学版), 2026, 56(2): 635-646.
[2]	束龙仓, 位书静, 澈丽木格, 温中琦, 刘波. 西辽河平原生态输水的地下水响应及不确定性量化[J]. 吉林大学学报(地球科学版), 2026, 56(2): 647-660.
[3]	杨婷, 李亚鑫, 刘娜, 林晓君, 曾经文, 王秀娟, 蔡倩怡, 罗子峰, 张苑铃, 容精男, 余伟达, 丘锦荣, 周建利. 沸石作为PRB填充介质修复NH4+污染地下水的效果及原位再生性能[J]. 吉林大学学报(地球科学版), 2026, 56(2): 661-672.
[4]	秦传玉, 尤凯鸿, 李小奇, 张成武, 于丽娟. 地下水常见阴离子影响双重改性纳米零价铁降解硝基苯的机制及效果[J]. 吉林大学学报(地球科学版), 2026, 56(1): 342-351.
[5]	张文静, 涂志鹏, 贾媛媛. 矿区重金属的释放迁移与污染预测研究进展[J]. 吉林大学学报(地球科学版), 2025, 55(6): 2001-2027.
[6]	闫纲丽, 冯屾, 刘睿男, 黄冠星. 地下水背景值评估研究进展[J]. 吉林大学学报(地球科学版), 2025, 55(5): 1655-1670.
[7]	王双, 朱奋, 李亮, 李林坚, 刘娜. 湛江市硇洲岛浅层地下水水化学特征及成因机制[J]. 吉林大学学报(地球科学版), 2025, 55(5): 1680-1690.
[8]	黄树春, 李洪涛, 邓波, 王丹, 张高华. 湖南湘潭河西地区近20年岩溶水化学时空演变及其影响因素 [J]. 吉林大学学报(地球科学版), 2025, 55(4): 1269-1287.
[9]	王锦博, 贺志毅, 王亚楠, 程诗雨, 刘明柱. 某污染场地土壤与地下水协同修复阈值[J]. 吉林大学学报(地球科学版), 2025, 55(4): 1288-1297.
[10]	王福刚, 管小桐, 何庆成, 程辉, 杨国华, 程中乐, 王耀辉. 考虑边界层流体黏度变化的黏性土低速非达西渗流数学模型[J]. 吉林大学学报(地球科学版), 2025, 55(3): 893-905.
[11]	胡启智, 王秀娟, 丘锦荣, 康迪, 曾经文, 蔡倩怡, 刘人涛, 刘娜. 潮汕地区地下水饮用水源地酸性浅层地下水特征及其成因探讨[J]. 吉林大学学报(地球科学版), 2025, 55(3): 906-918.
[12]	张晟瑀, 申文超, 苏小四. 基于随机森林法的区域地下水硝酸盐污染风险评价[J]. 吉林大学学报(地球科学版), 2025, 55(3): 943-956.
[13]	段磊, 曾经文, 赵显林, 丘锦荣, 刘娜, 陶钧实, 周建利. 珠江三角洲典型水产养殖区浅层地下水碘化物分布、来源及健康风险评估[J]. 吉林大学学报(地球科学版), 2024, 54(5): 1657-1674.
[14]	韩红闪, 朱琳, 郭高轩, 李炳华, 卢灿. 新水情背景下北京平原朝阳—通州沉降区地面沉降特征及其影响[J]. 吉林大学学报(地球科学版), 2024, 54(4): 1326-1338.
[15]	束龙仓, 张彤豪, 澈丽木格, 刘圣昱, 刘波. 降水和地下水开采对通辽市科尔沁区潜水位的影响[J]. 吉林大学学报(地球科学版), 2024, 54(3): 954-966.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed