In situ treatment of arsenic contaminated groundwater by aquifer iron coating: Experimental Study

Xie, Xianjun; Wang, Yanxin; Pi, Kunfu; Liu, Chongxuan; Li, Junxia; Liu, Yaqing; Wang, Zhiqiang; Duan, Mengyu

doi:10.1016/j.scitotenv.2015.05.002

Title: In situ treatment of arsenic contaminated groundwater by aquifer iron coating: Experimental Study

Full Record
Other Related Research

Abstract

In situ arsenic removal from groundwater by an iron coating method has great potential to be a cost effective and simple groundwater remediation technique, especially in rural and remote areas where groundwater is used as the main source of drinking water. The in situ arsenic removal technique was first optimized by simulating arsenic removal in various quartz sand columns under anoxic conditions., Its effectiveness was then evaluated in an actual high-arsenic groundwater environment. The mechanism of arsenic removal by the iron coating was investigated under different conditions using scanning electron microscopy (SEM)/X-ray absorption spectroscopy, an electron microprobe, and Fourier transformation infrared spectroscopy. A 4-step alternative cycle aquifer iron coating method was developed. A continuous injection of 5 mmol/L FeSO4 and 2.5 mmol/L NaClO for 96 hours can create a uniform coating of crystalline goethite on the surface of quartz sand in the columns without causing clogging. At a flow rate of 0.45 cm/min of the injection reagents (vi), the time for arsenic (as Na2HAsO4) to pass through the iron-coated quartz sand column was approximately 35 hours, which was much longer than that for tracer fluorescein sodium (approximately 2 hours). The retardation factor of arsenic was 23, and its adsorption capacitymore »« less

Authors:: Xie, Xianjun; Wang, Yanxin; Pi, Kunfu; Liu, Chongxuan; Li, Junxia; Liu, Yaqing; Wang, Zhiqiang; Duan, Mengyu

Publication Date:: Tue Sep 15 00:00:00 EDT 2015

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1214896

Report Number(s):: PNNL-SA-110142
KP1702030

DOE Contract Number:: AC05-76RL01830

Resource Type:: Journal Article

Journal Name:: Science of the Total Environment, 527-528:38-46

Additional Journal Information:: Journal Name: Science of the Total Environment, 527-528:38-46

Country of Publication:: United States

Language:: English

Subject:: arsenic, remediation, iron, coating

Citation Formats


                    Xie, Xianjun, Wang, Yanxin, Pi, Kunfu, Liu, Chongxuan, Li, Junxia, Liu, Yaqing, Wang, Zhiqiang, and Duan, Mengyu. In situ treatment of arsenic contaminated groundwater by aquifer iron coating: Experimental Study.  United States: N. p., 2015. 
        Web.  doi:10.1016/j.scitotenv.2015.05.002.

Copy to clipboard


                    Xie, Xianjun, Wang, Yanxin, Pi, Kunfu, Liu, Chongxuan, Li, Junxia, Liu, Yaqing, Wang, Zhiqiang, & Duan, Mengyu. In situ treatment of arsenic contaminated groundwater by aquifer iron coating: Experimental Study.  United States.  https://doi.org/10.1016/j.scitotenv.2015.05.002

Copy to clipboard


                    Xie, Xianjun, Wang, Yanxin, Pi, Kunfu, Liu, Chongxuan, Li, Junxia, Liu, Yaqing, Wang, Zhiqiang, and Duan, Mengyu. 2015.  
        "In situ treatment of arsenic contaminated groundwater by aquifer iron coating: Experimental Study".  United States.  https://doi.org/10.1016/j.scitotenv.2015.05.002.

Copy to clipboard


                    
@article{osti_1214896,

  title        = {In situ treatment of arsenic contaminated groundwater by aquifer iron coating: Experimental Study},

  author       = {Xie, Xianjun and Wang, Yanxin and Pi, Kunfu and Liu, Chongxuan and Li, Junxia and Liu, Yaqing and Wang, Zhiqiang and Duan, Mengyu},

  abstractNote = {In situ arsenic removal from groundwater by an iron coating method has great potential to be a cost effective and simple groundwater remediation technique, especially in rural and remote areas where groundwater is used as the main source of drinking water. The in situ arsenic removal technique was first optimized by simulating arsenic removal in various quartz sand columns under anoxic conditions., Its effectiveness was then evaluated in an actual high-arsenic groundwater environment. The mechanism of arsenic removal by the iron coating was investigated under different conditions using scanning electron microscopy (SEM)/X-ray absorption spectroscopy, an electron microprobe, and Fourier transformation infrared spectroscopy. A 4-step alternative cycle aquifer iron coating method was developed. A continuous injection of 5 mmol/L FeSO4 and 2.5 mmol/L NaClO for 96 hours can create a uniform coating of crystalline goethite on the surface of quartz sand in the columns without causing clogging. At a flow rate of 0.45 cm/min of the injection reagents (vi), the time for arsenic (as Na2HAsO4) to pass through the iron-coated quartz sand column was approximately 35 hours, which was much longer than that for tracer fluorescein sodium (approximately 2 hours). The retardation factor of arsenic was 23, and its adsorption capacity was 0.11 mol As per mol Fe, leading to an excellent arsenic removal. In situ arsenic removal from groundwater in an aquifer was achieved by simultaneous injections of As (V) and Fe (II) reagents. When the arsenic content in the groundwater was 233 μg/L, the aqueous phase arsenic was completely removed with an arsenic adsorption of 0.05 mol As per mol Fe. Arsenic fixation resulted from a process of adsorption/co-precipitation, in which arsenic and iron likely formed the arsenic-bearing iron mineral phases with poor crystallinity by way of bidentate binuclear complexes. Thus, the high arsenic removal efficiency of the technique likely resulted from the expanded specific iron oxide/hydroxide surface area with poor crystallinity and from coprecipitation.},

  doi          = {10.1016/j.scitotenv.2015.05.002},

  url          = {https://www.osti.gov/biblio/1214896},
  journal      = {Science of the Total Environment, 527-528:38-46},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Sep 15 00:00:00 EDT 2015},

  month        = {Tue Sep 15 00:00:00 EDT 2015}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1016/j.scitotenv.2015.05.002

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Permeable Reactive Biobarriers for In Situ Cr(VI) Reduction: Bench Scale Tests Using Cellulomonas sp. Strain ES6

Journal Article Viamajala, Sridhar; Peyton, Brent; Gerlach, Robin; ... - Biotechnology and Bioengineering

Chromate (Cr(VI)) reduction studies were performed in bench scale flow columns using the fermentative subsurface isolate Cellulomonas sp. strain ES6. In these tests, columns packed with either quartz sand or hydrous ferric oxide (HFO)-coated quartz sand, were inoculated with strain ES6 and fed nutrients to stimulate growth before nutrient-free Cr(VI) solutions were injected. Results show that in columns containing quartz sand, a continuous inflow of 2 mg/L Cr(VI) was reduced to below detection limits in the effluent for durations of up to 5.7 residence times after nutrient injection was discontinued proving the ability of strain ES6 to reduce chromate inmore »« less
https://doi.org/10.1002/bit.22020
In situ Fe-sulfide coating for arsenic removal under reducing conditions

Journal Article Xie, Xianjun; Liu, Yaqing; Pi, Kunfu; ... - Journal of Hydrology

An in situ Fe-sulfide coating approach has been developed for As-contaminated groundwater remediation. Alternate injection of Fe(II), O₂-free water and S^2$$-$$ can realize Fe-sulfide coating onto quartz sands with minor changes in porosity. As(III) uptake experiment indicated that the retardation factor for As(III) was 37 and dynamic retention capacity was 44.94 mg As(III)/g Fe, which was much higher than the maximum adsorption capacity for As(III) by FeS and FeS₂. This result indicated that adsorption cannot be the only mechanism for As(III) uptake by Fe-sulfide coating layer. The SEM image and FTIR spectra results suggested that interaction between As(III) and Fe-sulfidesmore »« less
https://doi.org/10.1016/j.jhydrol.2015.12.057
In-situ arsenic remediation by aquifer iron coating: Field trial in the Datong basin, China

Journal Article Xie, Xianjun; Pi, Kunfu; Liu, Yaqing; ... - Journal of Hazardous Materials

In situ As removal from groundwater used for water supply has been performed in Daying village of Shanyin County where mild alkaline groundwater contains high dissolved As concentration. The objective of this study was to evaluate in situ As treatment by aquifer Fe coating technology. The groundwater in the studied aquifer contains As dominated by aqueous As(III) and low dissolved Fe(II) concentration, which are unfavorable conditions for forming Fe-oxides/hydroxides for As removal. In addition, high As(III) concentration limits As adsorption onto Fe-oxides/hydroxides. Accordingly, dissolved Fe(II) (5mM) and NaClO (5mM) were injected into the studied aquifer to form Fe-oxides/hydroxides and oxidizemore »« less
https://doi.org/10.1016/j.jhazmat.2015.09.055
Electron Microscopy Evaluation of the Role of Dissimilatory Metal-reducing Bacteria in Biomineralization Pathways

Journal Article Dohnalkova, Alice; Hansel, Colleen; Gorby, Yuri; ... - Microscopy and Microanalysis

The importance of microorganisms in the biogeochemical cycling of Fe is well-recognized [1]. Dissimilatory metal-reducing bacteria (DMRB), which are ubiquitous in soils and aquifers, couple the oxidation of organic matter or H2 with the reduction of various Fe(III) oxide phases to obtain energy for growth and function. They can also catalyze Fe(III) reduction under anaerobic conditions, utilizing crystalline and poorly crystalline iron oxides as a terminal electron acceptor. Microbially induced Fe mineral transformations were examined using the Shewanella putrefaciens, strain CN32 in an artificial groundwater medium in columns under advective flow conditions. Columns were filled with ferrihydrite-coated quartz sand inoculatedmore »« less
https://doi.org/10.1017/S1431927604884873
Arsenic remediation of drinking water using iron-oxide coated coal bottom ash

Journal Article MATHIEU, JOHANNA; GADGIL, ASHOK; ADDY, SUSAN; ... - Environmental Science and Health

We describe laboratory and field results of a novel arsenic removal adsorbent called 'Arsenic Removal Using Bottom Ash' (ARUBA). ARUBA is prepared by coating particles of coal bottom ash, a waste material from coal fired power plants, with iron (hydr)oxide. The coating process is simple and conducted at room temperature and atmospheric pressure. Material costs for ARUBA are estimated to be low (~;;$0.08 per kg) and arsenic remediation with ARUBA has the potential to be affordable to resource-constrained communities. ARUBA is used for removing arsenic via a dispersal-and-removal process, and we envision that ARUBA would be used in community-scale watermore »« less
https://doi.org/10.1080/10934529.2010.500940

Full Text Available

Similar Records