Virus movement in soil columns flooded with secondary sewage effluent

J. C. Lance, Charles P Gerba, J. L. Melnick

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Secondary sewage effluent containing about 3 x 104 plaque forming units of polio virus type 1 (LSc) per ml was passed through columns 250 cm in length packed with calcareous sand from an area in the Salt River bed used for ground water recharge of secondary sewage effluent. Viruses were not detected in 1 ml samples extracted from the columns below the 160 cm level. However, viruses were detected in 5 of 43 100 ml samples of the column drainage water. Most of the viruses were adsorbed in the top 5 cm of soil. Virus removal was not affected by the infiltration rate, which varied between 15 and 55 cm/day. Flooding a column continuously for 27 days with the sewage water virus mixture did not saturate the top few centimeters of soil with viruses and did not seem to affect virus movement. Flooding with deionized water caused virus desorption from the soil and increased their movement through the columns. Adding CaCl2 to the deionized water prevented most of the virus desorption. Adding a pulse of deionized water followed by sewage water started a virus front moving through the columns, but the viruses were readsorbed and none was detected in outflow samples. Drying the soil for 1 day between applying the virus and flooding with deionized water greatly reduced desorption, and drying for 5 days prevented desorption. Large reductions (99.99% or more) of virus would be expected after passage of secondary sewage effluent through 250 cm of the calcareous sand similar to that used in our laboratory columns unless heavy rains fell within 1 day after the application of sewage stopped. Such virus movement could be minimized by the proper management of flooding and drying cycles.

Original languageEnglish (US)
Pages (from-to)520-526
Number of pages7
JournalApplied and Environmental Microbiology
Volume32
Issue number4
StatePublished - 1976
Externally publishedYes

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soil movement
sewage effluent
soil column
Sewage
virus
Soil
sewage
effluent
Viruses
viruses
desorption
Water
flooding
drying
water
soil
sand
Enterovirus C
groundwater recharge
Rain

ASJC Scopus subject areas

  • Biotechnology
  • Environmental Science(all)
  • Microbiology

Cite this

Virus movement in soil columns flooded with secondary sewage effluent. / Lance, J. C.; Gerba, Charles P; Melnick, J. L.

In: Applied and Environmental Microbiology, Vol. 32, No. 4, 1976, p. 520-526.

Research output: Contribution to journalArticle

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