Human health trade-offs in the disinfection of wastewater for landscape irrigation: Microplasma ozonation: Vs. chlorination

Shengkun Dong, Jun Li, Min Hwan Kim, Sung Jin Park, J. Gary Eden, Jeremy S. Guest, Thanh H. Nguyen

Research output: Contribution to journalArticle

Abstract

Wastewater reuse is becoming increasingly common, and there is a need for decentralized and small-scale systems to support the safe recovery of water resources. In this study, an integrated life cycle assessment (LCA) and quantitative microbial risk assessment (QMRA) were used to compare microplasma ozonation (an emerging technology) to chlorination (an established technology) for the disinfection of wastewater for landscape irrigational reuse. Three waterborne pathogens, Legionella pneumophila, Giardia, and Cryptosporidium parvum, were selected to include bacteria and protozoans covering the transmission routes of inhalation and ingestion. Inactivation data from the literature were coupled with bench-scale experiments (to establish inactivation parameters for L. pneumophila by ozone in wastewater) for the design and simulation of disinfection processes. Microplasma-based ozonation reduced more life cycle human health impacts as compared to chlorination for five of the six impact categories, because of the high susceptibility of the pathogens to ozone and the lower impacts stemming from electricity (required in ozonation) vs. chemical production (required in chlorination). These results were consistent across the electricity-fuel mixes of all fifty U.S. states. These results indicate that from the point of view of reducing human health impact, the emerging microplasma ozonation technology is superior to chlorination for wastewater reuse disinfection. To reduce the overall human health impact, future design efforts should focus on reducing process consumables (i.e., chemical and electricity consumption) through longer hydraulic residence times (HRTs), while maintaining adequate disinfectant dosing to provide reliable disinfection efficacy despite influent variability in compounds that may quench or interfere with the disinfectant.

Original languageEnglish (US)
Pages (from-to)106-118
Number of pages13
JournalEnvironmental Science: Water Research and Technology
Volume3
Issue number1
DOIs
StatePublished - Jan 1 2017

Fingerprint

Ozonization
Disinfection
Chlorination
Wastewater
chlorination
disinfection
wastewater
Health
Electricity
health impact
electricity
Disinfectants
Pathogens
Ozone
Life cycle
life cycle
pathogen
ozone
Water resources
Irrigation

ASJC Scopus subject areas

  • Water Science and Technology
  • Environmental Engineering

Cite this

Human health trade-offs in the disinfection of wastewater for landscape irrigation : Microplasma ozonation: Vs. chlorination. / Dong, Shengkun; Li, Jun; Kim, Min Hwan; Park, Sung Jin; Eden, J. Gary; Guest, Jeremy S.; Nguyen, Thanh H.

In: Environmental Science: Water Research and Technology, Vol. 3, No. 1, 01.01.2017, p. 106-118.

Research output: Contribution to journalArticle

Dong, Shengkun; Li, Jun; Kim, Min Hwan; Park, Sung Jin; Eden, J. Gary; Guest, Jeremy S.; Nguyen, Thanh H. / Human health trade-offs in the disinfection of wastewater for landscape irrigation : Microplasma ozonation: Vs. chlorination.

In: Environmental Science: Water Research and Technology, Vol. 3, No. 1, 01.01.2017, p. 106-118.

Research output: Contribution to journalArticle

@article{5fb141c47d574afc82b10eaedd372899,
title = "Human health trade-offs in the disinfection of wastewater for landscape irrigation: Microplasma ozonation: Vs. chlorination",
abstract = "Wastewater reuse is becoming increasingly common, and there is a need for decentralized and small-scale systems to support the safe recovery of water resources. In this study, an integrated life cycle assessment (LCA) and quantitative microbial risk assessment (QMRA) were used to compare microplasma ozonation (an emerging technology) to chlorination (an established technology) for the disinfection of wastewater for landscape irrigational reuse. Three waterborne pathogens, Legionella pneumophila, Giardia, and Cryptosporidium parvum, were selected to include bacteria and protozoans covering the transmission routes of inhalation and ingestion. Inactivation data from the literature were coupled with bench-scale experiments (to establish inactivation parameters for L. pneumophila by ozone in wastewater) for the design and simulation of disinfection processes. Microplasma-based ozonation reduced more life cycle human health impacts as compared to chlorination for five of the six impact categories, because of the high susceptibility of the pathogens to ozone and the lower impacts stemming from electricity (required in ozonation) vs. chemical production (required in chlorination). These results were consistent across the electricity-fuel mixes of all fifty U.S. states. These results indicate that from the point of view of reducing human health impact, the emerging microplasma ozonation technology is superior to chlorination for wastewater reuse disinfection. To reduce the overall human health impact, future design efforts should focus on reducing process consumables (i.e., chemical and electricity consumption) through longer hydraulic residence times (HRTs), while maintaining adequate disinfectant dosing to provide reliable disinfection efficacy despite influent variability in compounds that may quench or interfere with the disinfectant.",
author = "Shengkun Dong and Jun Li and Kim, {Min Hwan} and Park, {Sung Jin} and Eden, {J. Gary} and Guest, {Jeremy S.} and Nguyen, {Thanh H.}",
year = "2017",
month = "1",
doi = "10.1039/c6ew00235h",
volume = "3",
pages = "106--118",
journal = "Environmental Science: Water Research and Technology",
issn = "2053-1400",
publisher = "Royal Society of Chemistry",
number = "1",

}

TY - JOUR

T1 - Human health trade-offs in the disinfection of wastewater for landscape irrigation

T2 - Environmental Science: Water Research and Technology

AU - Dong,Shengkun

AU - Li,Jun

AU - Kim,Min Hwan

AU - Park,Sung Jin

AU - Eden,J. Gary

AU - Guest,Jeremy S.

AU - Nguyen,Thanh H.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Wastewater reuse is becoming increasingly common, and there is a need for decentralized and small-scale systems to support the safe recovery of water resources. In this study, an integrated life cycle assessment (LCA) and quantitative microbial risk assessment (QMRA) were used to compare microplasma ozonation (an emerging technology) to chlorination (an established technology) for the disinfection of wastewater for landscape irrigational reuse. Three waterborne pathogens, Legionella pneumophila, Giardia, and Cryptosporidium parvum, were selected to include bacteria and protozoans covering the transmission routes of inhalation and ingestion. Inactivation data from the literature were coupled with bench-scale experiments (to establish inactivation parameters for L. pneumophila by ozone in wastewater) for the design and simulation of disinfection processes. Microplasma-based ozonation reduced more life cycle human health impacts as compared to chlorination for five of the six impact categories, because of the high susceptibility of the pathogens to ozone and the lower impacts stemming from electricity (required in ozonation) vs. chemical production (required in chlorination). These results were consistent across the electricity-fuel mixes of all fifty U.S. states. These results indicate that from the point of view of reducing human health impact, the emerging microplasma ozonation technology is superior to chlorination for wastewater reuse disinfection. To reduce the overall human health impact, future design efforts should focus on reducing process consumables (i.e., chemical and electricity consumption) through longer hydraulic residence times (HRTs), while maintaining adequate disinfectant dosing to provide reliable disinfection efficacy despite influent variability in compounds that may quench or interfere with the disinfectant.

AB - Wastewater reuse is becoming increasingly common, and there is a need for decentralized and small-scale systems to support the safe recovery of water resources. In this study, an integrated life cycle assessment (LCA) and quantitative microbial risk assessment (QMRA) were used to compare microplasma ozonation (an emerging technology) to chlorination (an established technology) for the disinfection of wastewater for landscape irrigational reuse. Three waterborne pathogens, Legionella pneumophila, Giardia, and Cryptosporidium parvum, were selected to include bacteria and protozoans covering the transmission routes of inhalation and ingestion. Inactivation data from the literature were coupled with bench-scale experiments (to establish inactivation parameters for L. pneumophila by ozone in wastewater) for the design and simulation of disinfection processes. Microplasma-based ozonation reduced more life cycle human health impacts as compared to chlorination for five of the six impact categories, because of the high susceptibility of the pathogens to ozone and the lower impacts stemming from electricity (required in ozonation) vs. chemical production (required in chlorination). These results were consistent across the electricity-fuel mixes of all fifty U.S. states. These results indicate that from the point of view of reducing human health impact, the emerging microplasma ozonation technology is superior to chlorination for wastewater reuse disinfection. To reduce the overall human health impact, future design efforts should focus on reducing process consumables (i.e., chemical and electricity consumption) through longer hydraulic residence times (HRTs), while maintaining adequate disinfectant dosing to provide reliable disinfection efficacy despite influent variability in compounds that may quench or interfere with the disinfectant.

UR - http://www.scopus.com/inward/record.url?scp=85008958507&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85008958507&partnerID=8YFLogxK

U2 - 10.1039/c6ew00235h

DO - 10.1039/c6ew00235h

M3 - Article

VL - 3

SP - 106

EP - 118

JO - Environmental Science: Water Research and Technology

JF - Environmental Science: Water Research and Technology

SN - 2053-1400

IS - 1

ER -