Fate of organics during column studies of soil aquifer treatment

David M Quanrud, Robert G Arnold, L. G. Wilson, Howard J. Gordon, David W. Graham, Gary L. Amy

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Soil column experiments were performed to differentiate between abiotic and biological mechanisms for removal of residual organics from chlorinated municipal effluent during soil aquifer treatment (SAT) and to relate SAT efficiency to degree of wastewater treatment. Three water-quality parameters were examined: dissolved organic carbon (DOC), ultraviolet (UV) absorbance at 254 nm (UVA254), and adsorbable organic halide (AOX). Secondary and tertiary-treated effluents were applied to 1-m unsaturated columns containing soils from the Sweetwater Underground Storage and Recovery Facility, Tucson, Ariz. DOC was removed primarily by biological activity during SAT. Through-column removal using chlorinated secondary effluent averaged 48%. UVA254 reductions were dependent on biological and abiotic removal mechanisms. Aerobic biological activity did not contribute significantly to AOX removal. Through-column reductions for UVA254 and AOX from secondary effluent averaged 30% and 17%, respectively. Forty-four percent of the through-column DOC removal and 57% of UVA254 attenuation occurred in the top 8 cm of soil. The post-SAT organic quality of secondary and tertiary (dual-media filtered) effluents was essentially equivalent.

Original languageEnglish (US)
Pages (from-to)314-321
Number of pages8
JournalJournal of Environmental Engineering
Volume122
Issue number4
StatePublished - 1996

Fingerprint

Aquifers
absorbance
aquifer
effluent
Soils
Effluents
dissolved organic carbon
Organic carbon
soil column
soil
Bioactivity
underground storage
halide
removal
Wastewater treatment
water quality
Water quality
Recovery
experiment
biological activity

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Science(all)
  • Environmental Chemistry
  • Environmental Engineering

Cite this

Quanrud, D. M., Arnold, R. G., Wilson, L. G., Gordon, H. J., Graham, D. W., & Amy, G. L. (1996). Fate of organics during column studies of soil aquifer treatment. Journal of Environmental Engineering, 122(4), 314-321.

Fate of organics during column studies of soil aquifer treatment. / Quanrud, David M; Arnold, Robert G; Wilson, L. G.; Gordon, Howard J.; Graham, David W.; Amy, Gary L.

In: Journal of Environmental Engineering, Vol. 122, No. 4, 1996, p. 314-321.

Research output: Contribution to journalArticle

Quanrud, DM, Arnold, RG, Wilson, LG, Gordon, HJ, Graham, DW & Amy, GL 1996, 'Fate of organics during column studies of soil aquifer treatment', Journal of Environmental Engineering, vol. 122, no. 4, pp. 314-321.
Quanrud, David M ; Arnold, Robert G ; Wilson, L. G. ; Gordon, Howard J. ; Graham, David W. ; Amy, Gary L. / Fate of organics during column studies of soil aquifer treatment. In: Journal of Environmental Engineering. 1996 ; Vol. 122, No. 4. pp. 314-321.
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