An Exploration of Factors Influencing the Performance of Septic Tanks in Reducing Excreta Hazard

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" An Exploration of Factors Influencing the Performance of Septic Tanks in Reducing Excreta Hazard "
Medina, Beverly Barrett, III Stewart, Jill

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	1105449
Doc. No	:	TLpq2310308116
Main Entry	:	Medina, Beverly Barrett, III
	:	Stewart, Jill
Title & Author	:	An Exploration of Factors Influencing the Performance of Septic Tanks in Reducing Excreta Hazard\ Medina, Beverly Barrett, IIIStewart, Jill
College	:	The University of North Carolina at Chapel Hill
Date	:	2019
student score	:	2019
Degree	:	M.S.
Page No	:	66
Abstract	:	Despite widespread use of onsite sanitation, little is known about the efficacy of these technologies in reducing pathogen hazards. This work aimed to understand the performance of septic tanks in reducing hazards posed by human excreta. A literature review was conducted to examine how septic tanks vary globally and how these variations may influence tanks’ performance. This review demonstrated gaps in knowledge regarding pathogen reduction achieved by septic tanks. A case study was conducted in Tamil Nadu, India, to characterize the fecal sludge containment systems in use. The case study found that systems locally regarded as septic tanks did not meet design criteria typically associated with septic tanks. Additionally, the tanks did not discharge to a drainfield, but to an open drain, which presents the potential for unsafe returns of excreta to the environment. A more complete dataset will be necessary to construct a statistically robust model of pathogen flows.
Subject	:	Environmental engineering
	:	Public health