This readme.txt file was generated on 2024-10-15 by Recommended citation for the data: Harris, Celina M.; Soroush, Adel; Hildebrandt, Alanna M.; Amen, Kamilah Y.; Corcoran, Louis G.; Feinberg, Joshua M.; Arnold, William A.; Penn, R. Lee. (2024). Data for Evolving Mineralogy and Reactivity of Hematite-Coated Sands During Reduction by Fe(II) of 4-Chloronitrobenzene in Column Reactors. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/pvna-6525. ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset: Data for Evolving Mineralogy and Reactivity of Hematite-Coated Sands During Reduction by Fe(II) of 4-Chloronitrobenzene in Column Reactors 2. Author Information Author Contact: William Arnold (arnol032@umn.edu) Name: Celina M. Harris Institution: Email: ORCID: 0000-0002-3592-1788 Name: Adel Soroush Institution: University of Minnesota Email: ORCID: 0000-0003-3393-2448 Name: Alanna M. Hildebrandt Institution: University of Minnesota Email: ORCID: 0009-0006-3492-5820 Name: Kamilah Y. Amen Institution: University of Minnesota Email: amenx002@umn.edu ORCID: Name: Louis G. Corcoran Institution: University of Minnesota Email: corco104@umn.edu ORCID: 0000-0003-3061-8808 Name: Joshua M. Feinberg Institution: University of Minnesota Email: feinberg@umn.edu ORCID: 0000-0002-5845-9848 Name: William A. Arnold Institution: University of Minnesota Email: arnol032@umn.edu ORCID: 0000-0003-0814-5469 Name: R. Lee Penn Institution: University of Minnesota Email: rleepenn@umn.edu ORCID: 0000-0002-9610-9507 3. Date published or finalized for release: 2024-10-14 4. Date of data collection: 5. Geographic location of data collection: Arnold, Penn, and Feinberg labs at the University of Minnesota 6. Information about funding sources that supported the collection of the data: U.S. National Science Foundation 7. Overview of the data (abstract): This study explores the reaction of contaminants mediated by iron oxide minerals in a column reactor that simulated iron reducing groundwater conditions. Reaction of the model nitroaromatic pollutant with hematite-coated sand in column reactors leads to growth of goethite and evolving reactivity due to changes in accessible surface area. Data collected include concentrations of the model pollutant (4-chloronitrobenzene) and its reaction product, the amount of new iron oxide mineral formed, and chloride concentrations in tracer studies. -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: Attribution-NonCommercial-ShareAlike 4.0 International (http://creativecommons.org/licenses/by-nc-sa/4.0/) 2. Links to publications that cite or use the data: Evolving Mineralogy and Reactivity of Hematite-Coated Sands During Reduction by Fe(II) of 4-Chloronitrobenzene in Column Reactors, submitted to Environmental Science: Nano 3. Was data derived from another source? If yes, list source(s): 4. Terms of Use: Data Repository for the U of Minnesota (DRUM) By using these files, users agree to the Terms of Use. https://conservancy.umn.edu/pages/policies/#drum-terms-of-use --------------------- DATA & FILE OVERVIEW --------------------- Filename: Harris et al data.xlsx Short description: data, tables, and figures 15 Worksheets: README, Ottawa_Control_HPLC, HFe_36_HPLC, LFe_36_HPLC, LFe_21_HPLC, LFe_6_HPLC, Control_ICPOES, HFe_36_ICPOES, LFe_6_ICPOES, LFe_36_ICPOES, LFe_12_ICPOES, HFe_36_ISE, LFe_36_ISE, LFe_6_ISE, LFe_21_ISE -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: Column reactors were packed with hematite coated sand and exposed to ferrous iron and 4-chloronitrobenzene. 4-Chloronitrobenzene and its reaction product, 4-chloronitroaniline, were measured in samples taken from the water flowing the column using high pressure liquid chromatography with UV detection. The amount of iron precipitated in the column was determined at the end of the experiment by collecting the solid material, digesting in it acid, and measuring the iron using inductively coupled plasma optical emission spectroscopy. Chloride in water samples was measured in tracer studies using an ion selective electrode. 2. Methods for processing the data: The readings from the instruments were converted to concentrations using calibration curves generated with standards of known concentration. 3. Instrument- or software-specific information needed to interpret the data: None. 4. Standards and calibration information, if appropriate: Standards were prepared using accurately weighed portions of pure compounds. 5. Environmental/experimental conditions: Experiments were conducted in an anaerobic glove box (zero oxygen environment). 6. Describe any quality-assurance procedures performed on the data: Calibration was repeated for each run of the instrument. 7. People involved with sample collection, processing, analysis and/or submission: Celina M. Harris, Adel Soroush, Alanna M. Hildebrandt, Kamilah Y. Amen, Louis G. Corcoran, Joshua M. Feinberg, William A. Arnold, and R. Lee Penn ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: Harris et al data.xlsx ----------------------------------------- Sheets in the spreadsheet are annotated as LFe or HFe (Low or High iron, respectively) in accordance with manuscript annotation for quantity of hematite initially coating sand samples. Numerical values in the sheet titles indicate length of the experiment in hours (6 hours, 21 hours, 36 hours) The data collected is indicated based on the instrumentation used for collections. HPLC is high performance liquid chromatography data for the reaction of 4-chloronitrobenzene to 4-chloroaniline mediated by ferrous iron (Fe(II)) associated with the mineral hematite in column reactors. ICPOES is inductively coupled plasma optical emission spectroscopy measurements of the iron iron material generated by oxidative growth. ISE is ion selective electrode measurements of chloride during tracer tests of the columns.