Damage control: Managing the residuals generated during arsenic treatment

Jacqueline Shaw, Lauren Pepe, Wendell P Ela, Avelino E Saez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The recently reduced USEPA Maximum Contaminant Level (MCL) for arsenic in drinking water has forced facilities to either implement new or modifying existing arsenic removal technologies to meet the 10 μg/L MCL. The favored EPA-identified treatment option is adsorption onto solid media. These treatment processes generate arsenic-bearing solid residuals (ABSR) that must be tested and potentially treated prior to disposal. A growing body of research has demonstrated that these residuals may pose an unacceptable risk if disposed untreated in non-hazardous landfills. This risk motivated the development of an innovative stabilization method: polymeric encapsulation. Polymeric encapsulation out-performs the only reported alternative encapsulation technique, cement stabilization, with respect to both residual loading capacity (greater than 3-fold increase) and leach resistance. Another way to reduce the risk of ABSR disposal is to reduce the amount of ABSR generated, which could be achieved through the use of regenerable media. However, regeneration produces an arsenic-laden brine that must then be treated prior to disposal. This research investigated the use of less common, non-iron-based adsorption media for the treatment regenerate brine waste streams. Four media types (lanthanum hydroxide, ferric/lanthanum hydroxide, zirconium dioxide, and titanium oxide composition) were identified as potential treatment options based on their ability to retain relatively high arsenic capacities relative to traditional iron-based media.

Original languageEnglish (US)
Title of host publicationWater Quality Technology Conference and Exposition 2008
Pages2762-2768
Number of pages7
StatePublished - 2008
EventWater Quality Technology Conference and Exposition 2008 - Cincinnati, OH, United States
Duration: Nov 16 2008Nov 20 2008

Other

OtherWater Quality Technology Conference and Exposition 2008
CountryUnited States
CityCincinnati, OH
Period11/16/0811/20/08

Fingerprint

Arsenic
arsenic
damages
Bearings (structural)
damage
encapsulation
Encapsulation
stabilization
Lanthanum
brine
hydroxide
Stabilization
Impurities
adsorption
Adsorption
pollutant
Titanium oxides
Land fill
Zirconium
Potable water

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Water Science and Technology
  • Geography, Planning and Development

Cite this

Shaw, J., Pepe, L., Ela, W. P., & Saez, A. E. (2008). Damage control: Managing the residuals generated during arsenic treatment. In Water Quality Technology Conference and Exposition 2008 (pp. 2762-2768)

Damage control : Managing the residuals generated during arsenic treatment. / Shaw, Jacqueline; Pepe, Lauren; Ela, Wendell P; Saez, Avelino E.

Water Quality Technology Conference and Exposition 2008. 2008. p. 2762-2768.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shaw, J, Pepe, L, Ela, WP & Saez, AE 2008, Damage control: Managing the residuals generated during arsenic treatment. in Water Quality Technology Conference and Exposition 2008. pp. 2762-2768, Water Quality Technology Conference and Exposition 2008, Cincinnati, OH, United States, 11/16/08.
Shaw J, Pepe L, Ela WP, Saez AE. Damage control: Managing the residuals generated during arsenic treatment. In Water Quality Technology Conference and Exposition 2008. 2008. p. 2762-2768
Shaw, Jacqueline ; Pepe, Lauren ; Ela, Wendell P ; Saez, Avelino E. / Damage control : Managing the residuals generated during arsenic treatment. Water Quality Technology Conference and Exposition 2008. 2008. pp. 2762-2768
@inproceedings{61891f70d89349039466a6746f0370cd,
title = "Damage control: Managing the residuals generated during arsenic treatment",
abstract = "The recently reduced USEPA Maximum Contaminant Level (MCL) for arsenic in drinking water has forced facilities to either implement new or modifying existing arsenic removal technologies to meet the 10 μg/L MCL. The favored EPA-identified treatment option is adsorption onto solid media. These treatment processes generate arsenic-bearing solid residuals (ABSR) that must be tested and potentially treated prior to disposal. A growing body of research has demonstrated that these residuals may pose an unacceptable risk if disposed untreated in non-hazardous landfills. This risk motivated the development of an innovative stabilization method: polymeric encapsulation. Polymeric encapsulation out-performs the only reported alternative encapsulation technique, cement stabilization, with respect to both residual loading capacity (greater than 3-fold increase) and leach resistance. Another way to reduce the risk of ABSR disposal is to reduce the amount of ABSR generated, which could be achieved through the use of regenerable media. However, regeneration produces an arsenic-laden brine that must then be treated prior to disposal. This research investigated the use of less common, non-iron-based adsorption media for the treatment regenerate brine waste streams. Four media types (lanthanum hydroxide, ferric/lanthanum hydroxide, zirconium dioxide, and titanium oxide composition) were identified as potential treatment options based on their ability to retain relatively high arsenic capacities relative to traditional iron-based media.",
author = "Jacqueline Shaw and Lauren Pepe and Ela, {Wendell P} and Saez, {Avelino E}",
year = "2008",
language = "English (US)",
isbn = "9781605609935",
pages = "2762--2768",
booktitle = "Water Quality Technology Conference and Exposition 2008",

}

TY - GEN

T1 - Damage control

T2 - Managing the residuals generated during arsenic treatment

AU - Shaw, Jacqueline

AU - Pepe, Lauren

AU - Ela, Wendell P

AU - Saez, Avelino E

PY - 2008

Y1 - 2008

N2 - The recently reduced USEPA Maximum Contaminant Level (MCL) for arsenic in drinking water has forced facilities to either implement new or modifying existing arsenic removal technologies to meet the 10 μg/L MCL. The favored EPA-identified treatment option is adsorption onto solid media. These treatment processes generate arsenic-bearing solid residuals (ABSR) that must be tested and potentially treated prior to disposal. A growing body of research has demonstrated that these residuals may pose an unacceptable risk if disposed untreated in non-hazardous landfills. This risk motivated the development of an innovative stabilization method: polymeric encapsulation. Polymeric encapsulation out-performs the only reported alternative encapsulation technique, cement stabilization, with respect to both residual loading capacity (greater than 3-fold increase) and leach resistance. Another way to reduce the risk of ABSR disposal is to reduce the amount of ABSR generated, which could be achieved through the use of regenerable media. However, regeneration produces an arsenic-laden brine that must then be treated prior to disposal. This research investigated the use of less common, non-iron-based adsorption media for the treatment regenerate brine waste streams. Four media types (lanthanum hydroxide, ferric/lanthanum hydroxide, zirconium dioxide, and titanium oxide composition) were identified as potential treatment options based on their ability to retain relatively high arsenic capacities relative to traditional iron-based media.

AB - The recently reduced USEPA Maximum Contaminant Level (MCL) for arsenic in drinking water has forced facilities to either implement new or modifying existing arsenic removal technologies to meet the 10 μg/L MCL. The favored EPA-identified treatment option is adsorption onto solid media. These treatment processes generate arsenic-bearing solid residuals (ABSR) that must be tested and potentially treated prior to disposal. A growing body of research has demonstrated that these residuals may pose an unacceptable risk if disposed untreated in non-hazardous landfills. This risk motivated the development of an innovative stabilization method: polymeric encapsulation. Polymeric encapsulation out-performs the only reported alternative encapsulation technique, cement stabilization, with respect to both residual loading capacity (greater than 3-fold increase) and leach resistance. Another way to reduce the risk of ABSR disposal is to reduce the amount of ABSR generated, which could be achieved through the use of regenerable media. However, regeneration produces an arsenic-laden brine that must then be treated prior to disposal. This research investigated the use of less common, non-iron-based adsorption media for the treatment regenerate brine waste streams. Four media types (lanthanum hydroxide, ferric/lanthanum hydroxide, zirconium dioxide, and titanium oxide composition) were identified as potential treatment options based on their ability to retain relatively high arsenic capacities relative to traditional iron-based media.

UR - http://www.scopus.com/inward/record.url?scp=84871533825&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84871533825&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84871533825

SN - 9781605609935

SP - 2762

EP - 2768

BT - Water Quality Technology Conference and Exposition 2008

ER -