Fate of organics during soil-aquifer treatment: Sustainability of removals in the field

David M Quanrud, Jennifer Hafer, Martin M. Karpiscak, Jianmin Zhang, Kevin E Lansey, Robert G Arnold

Research output: Contribution to journalArticle

93 Citations (Scopus)

Abstract

A 5-year program of study was conducted at the Sweetwater Recharge Facilities (SRF) to assess the performance of surface spreading operations for organics attenuation during field-scale soil-aquifer treatment (SAT) of municipal wastewater. Studies were conducted utilizing both mature (∼10 yr old) and new infiltration basins. Removals of dissolved organic carbon (DOC) were robust, averaging >90 percent during percolation through the local 37-m vadose zone. The hydrophilic (most polar) fraction of DOC was preferentially removed during SAT; removals were attributed primarily to biodegradation. Reductions in trihalomethane formation potential (THMFP) averaged 91 percent across the vadose zone profile. The reactivity (specific THMFP) of post-SAT organic residuals with chlorine decreased slightly from pre-SAT levels (60 vs. 72 μg THM per mg DOC, respectively). Variations in the duration of wetting/drying periods did not significantly impact organic removal efficiencies.

Original languageEnglish (US)
Pages (from-to)3401-3411
Number of pages11
JournalWater Research
Volume37
Issue number14
DOIs
StatePublished - Aug 2003

Fingerprint

Aquifers
organic soil
Sustainable development
Organic carbon
sustainability
aquifer
dissolved organic carbon
Soils
vadose zone
soil
Biodegradation
Infiltration
wetting
Chlorine
Wetting
chlorine
recharge
biodegradation
Drying
Wastewater

Keywords

  • Dissolved organic carbon
  • Soil-aquifer treatment
  • Trihalomethanes
  • Wastewater effluent

ASJC Scopus subject areas

  • Earth-Surface Processes

Cite this

Fate of organics during soil-aquifer treatment : Sustainability of removals in the field. / Quanrud, David M; Hafer, Jennifer; Karpiscak, Martin M.; Zhang, Jianmin; Lansey, Kevin E; Arnold, Robert G.

In: Water Research, Vol. 37, No. 14, 08.2003, p. 3401-3411.

Research output: Contribution to journalArticle

Quanrud, David M ; Hafer, Jennifer ; Karpiscak, Martin M. ; Zhang, Jianmin ; Lansey, Kevin E ; Arnold, Robert G. / Fate of organics during soil-aquifer treatment : Sustainability of removals in the field. In: Water Research. 2003 ; Vol. 37, No. 14. pp. 3401-3411.
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