Impacts of shale gas wastewater disposal on water quality in Western Pennsylvania

Nathaniel Richard Warner, Cidney A. Christie, Robert B. Jackson, Avner Vengosh

Research output: Contribution to journalArticle

268 Citations (Scopus)

Abstract

The safe disposal of liquid wastes associated with oil and gas production in the United States is a major challenge given their large volumes and typically high levels of contaminants. In Pennsylvania, oil and gas wastewater is sometimes treated at brine treatment facilities and discharged to local streams. This study examined the water quality and isotopic compositions of discharged effluents, surface waters, and stream sediments associated with a treatment facility site in western Pennsylvania. The elevated levels of chloride and bromide, combined with the strontium, radium, oxygen, and hydrogen isotopic compositions of the effluents reflect the composition of Marcellus Shale produced waters. The discharge of the effluent from the treatment facility increased downstream concentrations of chloride and bromide above background levels. Barium and radium were substantially (>90%) reduced in the treated effluents compared to concentrations in Marcellus Shale produced waters. Nonetheless, 226Ra levels in stream sediments (544-8759 Bq/kg) at the point of discharge were ∼200 times greater than upstream and background sediments (22-44 Bq/kg) and above radioactive waste disposal threshold regulations, posing potential environmental risks of radium bioaccumulation in localized areas of shale gas wastewater disposal.

Original languageEnglish (US)
Pages (from-to)11849-11857
Number of pages9
JournalEnvironmental Science and Technology
Volume47
Issue number20
DOIs
StatePublished - Oct 15 2013

Fingerprint

Wastewater disposal
Radium
Water quality
radium
Effluents
effluent
water quality
wastewater
Sediments
Shale
Bromides
bromide
fluvial deposit
Chlorides
shale
Oils
isotopic composition
Gases
Chemical analysis
chloride

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Warner, Nathaniel Richard ; Christie, Cidney A. ; Jackson, Robert B. ; Vengosh, Avner. / Impacts of shale gas wastewater disposal on water quality in Western Pennsylvania. In: Environmental Science and Technology. 2013 ; Vol. 47, No. 20. pp. 11849-11857.
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Impacts of shale gas wastewater disposal on water quality in Western Pennsylvania. / Warner, Nathaniel Richard; Christie, Cidney A.; Jackson, Robert B.; Vengosh, Avner.

In: Environmental Science and Technology, Vol. 47, No. 20, 15.10.2013, p. 11849-11857.

Research output: Contribution to journalArticle

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