Comparative treatment effectiveness of conventional trench and seepage pit systems

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

On-site wastewater treatment systems can be a potential source of groundwater contamination in regions throughout the United States and other parts of the world. Here, we evaluate four conventional trench systems and four seepage pit systems to determine the relative effectiveness of these systems for the treatment of septic tank effluent in medium- to coarse-textured arid and semiarid soils. Soil borings were advanced up to twice the depth of the trenches (4 m) and seepage pits (15 m) at two horizontal distances (30 cm and 1.5 m) from the sidewalls of the systems. Soil samples were analyzed for various biological and chemical parameters, including Escherichia coli, total coliform, pH, total organic carbon, total dissolved solids, total nitrogen, ammonium-nitrogen, and nitrate-nitrogen. Most soil parameters investigated approached background levels more rapidly near the trenches than the seepage pits, as sampling distance increased both vertically and horizontally from the sidewalls of the systems.

Original languageEnglish (US)
Pages (from-to)310-319
Number of pages10
JournalWater Environment Research
Volume79
Issue number3
DOIs
StatePublished - Mar 2007

Fingerprint

Seepage
seepage
trench
Soils
Nitrogen
septic systems
arid soils
semiarid soils
nitrogen
coarse-textured soils
total dissolved solids
ammonium nitrogen
soil
groundwater contamination
nitrate nitrogen
Septic tanks
ammonium nitrate
wastewater treatment
Boring
effluents

Keywords

  • Seepage pits
  • Septic systems
  • Trenches
  • Wastewater treatment
  • Water quality

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Science(all)
  • Environmental Chemistry
  • Aquatic Science
  • Water Science and Technology

Cite this

Comparative treatment effectiveness of conventional trench and seepage pit systems. / Field, J. P.; Farrell-Poe, Kathryn L; Walworth, James L.

In: Water Environment Research, Vol. 79, No. 3, 03.2007, p. 310-319.

Research output: Contribution to journalArticle

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