A low-input strategy for chromium removal from industrial stormwater using peat sorbent

Brandy Stewart; Sarah Nicholas; Sharon Bone; Ryan Tappero; Paul Eger; Cody Sheik; Brandy M. Toner

doi:10.1002/jeq2.20397

A low-input strategy for chromium removal from industrial stormwater using peat sorbent

Brandy Stewart, Sarah Nicholas, Sharon Bone, Ryan Tappero, Paul Eger, Cody Sheik, Brandy M. Toner

Research output: Contribution to journal › Article › peer-review

Abstract

Low-cost and low-input water treatment systems are important for industrial stormwater remediation. Here we examine a flow-through reactor treatment installation where water exceeds the allowable maximum concentration for drinking water in multiple metals (e.g., chromium [Cr], cadmium [Cd], zinc [Zn]) prior to treatment. Specifically, we seek to understand why Cr attenuated in the reactors is not leachable by identifying the specific chemical form of Cr and dominant mechanisms promoting sequestration in the reactors. Total solid-phase Cr concentration in the peat media ranged from 50 to 150 mg/kg after 1 yr of exposure to stormwater to 300 to 900 mg/kg after 3.5 yr. X-ray fluorescence mapping images show Cr, iron (Fe), and Zn spatially correlated over a scale of 10 μm to 5 mm. Chromium rinds form on the edges of peat particles as Cr accumulates. Chromium and Fe K-edge X-ray absorption near edge structure spectroscopy reveal chromium predominately in the 3+ oxidation state with lesser amounts of elemental Cr. We propose the primary means of chromium attenuation in the reactors is precipitation as Cr-Fe hydroxides combined with trivalent Cr adsorption onto peat surfaces.

Original language	English (US)
Pages (from-to)	1054-1065
Number of pages	12
Journal	Journal of Environmental Quality
Volume	51
Issue number	5
DOIs	https://doi.org/10.1002/jeq2.20397
State	Published - Sep 1 2022

Bibliographical note

Funding Information:
This research was supported by funds from MnDrive (Minnesota's Discovery, Research, and InnoVation Economy) Environment Program (BMT, CSS, PE). The National Synchrotron Light Source II is a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE‐SC0012704. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE‐AC02‐76SF00515. Thanks to Scott Wright, Jack Beatty, and Nate Goodamo at Diamond Chrome Plating and Doug Green and Peggy Jones of American Peat Technology. We thank the staff of the Research Analytical Laboratory at the UMN. We thank Rose Jones and Chris Schuler for assistance in synchrotron data collection. We thank Jeff Catalano and Charuleka Varadharajan for providing reference spectra. We acknowledge and honor the indigenous communities native to the Minnesota region where the University of Minnesota now resides on the ancestral land of the Wahpekute (Dakota), Anishinabewaki, and Očeti Šakówiŋ (Sioux) peoples. We wish to recognize the people of the Sioux tribe as the ongoing caretakers of this land.

Funding Information:
This research was supported by funds from MnDrive (Minnesota's Discovery, Research, and InnoVation Economy) Environment Program (BMT, CSS, PE). The National Synchrotron Light Source II is a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE-SC0012704. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. Thanks to Scott Wright, Jack Beatty, and Nate Goodamo at Diamond Chrome Plating and Doug Green and Peggy Jones of American Peat Technology. We thank the staff of the Research Analytical Laboratory at the UMN. We thank Rose Jones and Chris Schuler for assistance in synchrotron data collection. We thank Jeff Catalano and Charuleka Varadharajan for providing reference spectra. We acknowledge and honor the indigenous communities native to the Minnesota region where the University of Minnesota now resides on the ancestral land of the Wahpekute (Dakota), Anishinabewaki, and Očeti Šakówiŋ (Sioux) peoples. We wish to recognize the people of the Sioux tribe as the ongoing caretakers of this land.

Publisher Copyright:
© 2022 The Authors. Journal of Environmental Quality published by Wiley Periodicals LLC on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

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title = "A low-input strategy for chromium removal from industrial stormwater using peat sorbent",

abstract = "Low-cost and low-input water treatment systems are important for industrial stormwater remediation. Here we examine a flow-through reactor treatment installation where water exceeds the allowable maximum concentration for drinking water in multiple metals (e.g., chromium [Cr], cadmium [Cd], zinc [Zn]) prior to treatment. Specifically, we seek to understand why Cr attenuated in the reactors is not leachable by identifying the specific chemical form of Cr and dominant mechanisms promoting sequestration in the reactors. Total solid-phase Cr concentration in the peat media ranged from 50 to 150 mg/kg after 1 yr of exposure to stormwater to 300 to 900 mg/kg after 3.5 yr. X-ray fluorescence mapping images show Cr, iron (Fe), and Zn spatially correlated over a scale of 10 μm to 5 mm. Chromium rinds form on the edges of peat particles as Cr accumulates. Chromium and Fe K-edge X-ray absorption near edge structure spectroscopy reveal chromium predominately in the 3+ oxidation state with lesser amounts of elemental Cr. We propose the primary means of chromium attenuation in the reactors is precipitation as Cr-Fe hydroxides combined with trivalent Cr adsorption onto peat surfaces.",

author = "Brandy Stewart and Sarah Nicholas and Sharon Bone and Ryan Tappero and Paul Eger and Cody Sheik and Toner, {Brandy M.}",

note = "Funding Information: This research was supported by funds from MnDrive (Minnesota's Discovery, Research, and InnoVation Economy) Environment Program (BMT, CSS, PE). The National Synchrotron Light Source II is a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE‐SC0012704. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE‐AC02‐76SF00515. Thanks to Scott Wright, Jack Beatty, and Nate Goodamo at Diamond Chrome Plating and Doug Green and Peggy Jones of American Peat Technology. We thank the staff of the Research Analytical Laboratory at the UMN. We thank Rose Jones and Chris Schuler for assistance in synchrotron data collection. We thank Jeff Catalano and Charuleka Varadharajan for providing reference spectra. We acknowledge and honor the indigenous communities native to the Minnesota region where the University of Minnesota now resides on the ancestral land of the Wahpekute (Dakota), Anishinabewaki, and O{\v c}eti {\v S}ak{\'o}wi{\ng} (Sioux) peoples. We wish to recognize the people of the Sioux tribe as the ongoing caretakers of this land. Funding Information: This research was supported by funds from MnDrive (Minnesota's Discovery, Research, and InnoVation Economy) Environment Program (BMT, CSS, PE). The National Synchrotron Light Source II is a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE-SC0012704. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. Thanks to Scott Wright, Jack Beatty, and Nate Goodamo at Diamond Chrome Plating and Doug Green and Peggy Jones of American Peat Technology. We thank the staff of the Research Analytical Laboratory at the UMN. We thank Rose Jones and Chris Schuler for assistance in synchrotron data collection. We thank Jeff Catalano and Charuleka Varadharajan for providing reference spectra. We acknowledge and honor the indigenous communities native to the Minnesota region where the University of Minnesota now resides on the ancestral land of the Wahpekute (Dakota), Anishinabewaki, and O{\v c}eti {\v S}ak{\'o}wi{\ng} (Sioux) peoples. We wish to recognize the people of the Sioux tribe as the ongoing caretakers of this land. Publisher Copyright: {\textcopyright} 2022 The Authors. Journal of Environmental Quality published by Wiley Periodicals LLC on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.",

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N2 - Low-cost and low-input water treatment systems are important for industrial stormwater remediation. Here we examine a flow-through reactor treatment installation where water exceeds the allowable maximum concentration for drinking water in multiple metals (e.g., chromium [Cr], cadmium [Cd], zinc [Zn]) prior to treatment. Specifically, we seek to understand why Cr attenuated in the reactors is not leachable by identifying the specific chemical form of Cr and dominant mechanisms promoting sequestration in the reactors. Total solid-phase Cr concentration in the peat media ranged from 50 to 150 mg/kg after 1 yr of exposure to stormwater to 300 to 900 mg/kg after 3.5 yr. X-ray fluorescence mapping images show Cr, iron (Fe), and Zn spatially correlated over a scale of 10 μm to 5 mm. Chromium rinds form on the edges of peat particles as Cr accumulates. Chromium and Fe K-edge X-ray absorption near edge structure spectroscopy reveal chromium predominately in the 3+ oxidation state with lesser amounts of elemental Cr. We propose the primary means of chromium attenuation in the reactors is precipitation as Cr-Fe hydroxides combined with trivalent Cr adsorption onto peat surfaces.

AB - Low-cost and low-input water treatment systems are important for industrial stormwater remediation. Here we examine a flow-through reactor treatment installation where water exceeds the allowable maximum concentration for drinking water in multiple metals (e.g., chromium [Cr], cadmium [Cd], zinc [Zn]) prior to treatment. Specifically, we seek to understand why Cr attenuated in the reactors is not leachable by identifying the specific chemical form of Cr and dominant mechanisms promoting sequestration in the reactors. Total solid-phase Cr concentration in the peat media ranged from 50 to 150 mg/kg after 1 yr of exposure to stormwater to 300 to 900 mg/kg after 3.5 yr. X-ray fluorescence mapping images show Cr, iron (Fe), and Zn spatially correlated over a scale of 10 μm to 5 mm. Chromium rinds form on the edges of peat particles as Cr accumulates. Chromium and Fe K-edge X-ray absorption near edge structure spectroscopy reveal chromium predominately in the 3+ oxidation state with lesser amounts of elemental Cr. We propose the primary means of chromium attenuation in the reactors is precipitation as Cr-Fe hydroxides combined with trivalent Cr adsorption onto peat surfaces.

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A low-input strategy for chromium removal from industrial stormwater using peat sorbent

Abstract

Bibliographical note

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UN SDGs

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