Septic tank additive impacts on microbial populations

S. Pradhan, M. T. Hoover, G. H. Clark, M. Gumpertz, A. G. Wollum, C. Cobb, J. Strock

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Environmental health specialists, other onsite wastewater professionals, scientists, and homeowners have questioned the effectiveness of septic tank additives. This paper describes an independent, third-party, field scale, research study of the effects of three liquid bacterial septic tank additives and a control (no additive) on septic tank microbial populations. Microbial populations were measured quarterly in a field study for 12 months in 48 full-size, functioning septic tanks. Bacterial populations in the 48 septic tanks were statistically analyzed with a mixed linear model. Additive effects were assessed for three septic tank maintenance levels (low, intermediate, and high). Dunnett's t-test for tank bacteria (α = .05) indicated that none of the treatments were significantly different, overall, from the control at the statistical level tested. In addition, the additives had no significant effects on septic tank bacterial populations at any of the septic tank maintenance levels. Additional controlled, field-based research is warranted, however, to address additional additives and experimental conditions.

Original languageEnglish (US)
Pages (from-to)22-27
Number of pages6
JournalJournal of Environmental Health
Volume70
Issue number6
StatePublished - Jan 1 2008

Fingerprint

Septic tanks
Population
Maintenance
Environmental Health
Waste Water
Research
Linear Models
Bacteria
homeowner
septic tank
Wastewater
additive
Health
wastewater
bacterium
liquid

Cite this

Pradhan, S., Hoover, M. T., Clark, G. H., Gumpertz, M., Wollum, A. G., Cobb, C., & Strock, J. (2008). Septic tank additive impacts on microbial populations. Journal of Environmental Health, 70(6), 22-27.

Septic tank additive impacts on microbial populations. / Pradhan, S.; Hoover, M. T.; Clark, G. H.; Gumpertz, M.; Wollum, A. G.; Cobb, C.; Strock, J.

In: Journal of Environmental Health, Vol. 70, No. 6, 01.01.2008, p. 22-27.

Research output: Contribution to journalArticle

Pradhan, S, Hoover, MT, Clark, GH, Gumpertz, M, Wollum, AG, Cobb, C & Strock, J 2008, 'Septic tank additive impacts on microbial populations', Journal of Environmental Health, vol. 70, no. 6, pp. 22-27.
Pradhan S, Hoover MT, Clark GH, Gumpertz M, Wollum AG, Cobb C et al. Septic tank additive impacts on microbial populations. Journal of Environmental Health. 2008 Jan 1;70(6):22-27.
Pradhan, S. ; Hoover, M. T. ; Clark, G. H. ; Gumpertz, M. ; Wollum, A. G. ; Cobb, C. ; Strock, J. / Septic tank additive impacts on microbial populations. In: Journal of Environmental Health. 2008 ; Vol. 70, No. 6. pp. 22-27.
@article{b7a7d01e35a249b8ac728843908561ac,
title = "Septic tank additive impacts on microbial populations",
abstract = "Environmental health specialists, other onsite wastewater professionals, scientists, and homeowners have questioned the effectiveness of septic tank additives. This paper describes an independent, third-party, field scale, research study of the effects of three liquid bacterial septic tank additives and a control (no additive) on septic tank microbial populations. Microbial populations were measured quarterly in a field study for 12 months in 48 full-size, functioning septic tanks. Bacterial populations in the 48 septic tanks were statistically analyzed with a mixed linear model. Additive effects were assessed for three septic tank maintenance levels (low, intermediate, and high). Dunnett's t-test for tank bacteria (α = .05) indicated that none of the treatments were significantly different, overall, from the control at the statistical level tested. In addition, the additives had no significant effects on septic tank bacterial populations at any of the septic tank maintenance levels. Additional controlled, field-based research is warranted, however, to address additional additives and experimental conditions.",
author = "S. Pradhan and Hoover, {M. T.} and Clark, {G. H.} and M. Gumpertz and Wollum, {A. G.} and C. Cobb and J. Strock",
year = "2008",
month = "1",
day = "1",
language = "English (US)",
volume = "70",
pages = "22--27",
journal = "Journal of Environmental Health",
issn = "0022-0892",
publisher = "National Environmental Health Association",
number = "6",

}

TY - JOUR

T1 - Septic tank additive impacts on microbial populations

AU - Pradhan, S.

AU - Hoover, M. T.

AU - Clark, G. H.

AU - Gumpertz, M.

AU - Wollum, A. G.

AU - Cobb, C.

AU - Strock, J.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Environmental health specialists, other onsite wastewater professionals, scientists, and homeowners have questioned the effectiveness of septic tank additives. This paper describes an independent, third-party, field scale, research study of the effects of three liquid bacterial septic tank additives and a control (no additive) on septic tank microbial populations. Microbial populations were measured quarterly in a field study for 12 months in 48 full-size, functioning septic tanks. Bacterial populations in the 48 septic tanks were statistically analyzed with a mixed linear model. Additive effects were assessed for three septic tank maintenance levels (low, intermediate, and high). Dunnett's t-test for tank bacteria (α = .05) indicated that none of the treatments were significantly different, overall, from the control at the statistical level tested. In addition, the additives had no significant effects on septic tank bacterial populations at any of the septic tank maintenance levels. Additional controlled, field-based research is warranted, however, to address additional additives and experimental conditions.

AB - Environmental health specialists, other onsite wastewater professionals, scientists, and homeowners have questioned the effectiveness of septic tank additives. This paper describes an independent, third-party, field scale, research study of the effects of three liquid bacterial septic tank additives and a control (no additive) on septic tank microbial populations. Microbial populations were measured quarterly in a field study for 12 months in 48 full-size, functioning septic tanks. Bacterial populations in the 48 septic tanks were statistically analyzed with a mixed linear model. Additive effects were assessed for three septic tank maintenance levels (low, intermediate, and high). Dunnett's t-test for tank bacteria (α = .05) indicated that none of the treatments were significantly different, overall, from the control at the statistical level tested. In addition, the additives had no significant effects on septic tank bacterial populations at any of the septic tank maintenance levels. Additional controlled, field-based research is warranted, however, to address additional additives and experimental conditions.

UR - http://www.scopus.com/inward/record.url?scp=39549089961&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=39549089961&partnerID=8YFLogxK

M3 - Article

C2 - 18236933

AN - SCOPUS:39549089961

VL - 70

SP - 22

EP - 27

JO - Journal of Environmental Health

JF - Journal of Environmental Health

SN - 0022-0892

IS - 6

ER -