Abstract Reclaimed wastewater used for agricultural irrigation should meet specific microbiological standards in order to prevent microbial contamination of the irrigated produce. The objective of this study was to evaluate the suitability of chlorine dioxide (ClO2) for the disinfection of secondary-treated municipal wastewater and its subsequent use for overhead irrigation in greenhouse production of baby lettuce. The impact of reclaimed water tertiary-treated with ClO2 on E. coli concentration, the presence of pathogenic bacteria, and the occurrence of chlorates as disinfection by-products was evaluated in water and in baby lettuce. E. coli was quantified using both conventional plating methods and a quantitative real time PCR (qPCR) method with propidium monoazide (PMA) pre-treatment to differentiate between viable and non-viable bacteria. Population density of cultivable E. coli was significantly lower (p
Suitability of chlorine dioxide as a tertiary treatment for municipal wastewater and use of reclaimed water for overhead irrigation of baby lettuce
L. T. Decol,F. López-Gálvez,P. Truchado,E. Tondo,M. Gil,A. Allende
Published 2019 in Food Control
ABSTRACT
PUBLICATION RECORD
- Publication year
2019
- Venue
Food Control
- Publication date
2019-02-01
- Fields of study
Agricultural and Food Sciences, Environmental Science
- Identifiers
- External record
- Source metadata
Semantic Scholar
CITATION MAP
EXTRACTION MAP
CLAIMS
CONCEPTS
- baby lettuce
Young lettuce plants grown in greenhouse production and used as the irrigated crop.
- chlorates
Oxidation by-products from chlorine dioxide treatment monitored in water and lettuce.
- chlorine dioxide (clo2)
A chlorine-based disinfectant applied here as a tertiary treatment for municipal wastewater.
Aliases: ClO2
- e. coli
Escherichia coli measured in water and lettuce as a microbiological indicator bacterium.
Aliases: Escherichia coli
- overhead irrigation
An irrigation method that delivers reclaimed water above the crop canopy.
- pathogenic bacteria
Bacteria with disease-causing potential that were screened for in the treated water and crop.
- qpcr with pma pre-treatment
A molecular counting approach combining quantitative real-time PCR with propidium monoazide to separate signals from viable and non-viable cells.
Aliases: quantitative real time PCR, quantitative real time PCR (qPCR), propidium monoazide (PMA) pre-treatment
- reclaimed wastewater
Municipal wastewater treated for reuse in irrigation after secondary treatment and tertiary disinfection.
Aliases: reclaimed water, secondary-treated municipal wastewater
REFERENCES
Showing 1-51 of 51 references · Page 1 of 1
CITED BY
Showing 1-20 of 20 citing papers · Page 1 of 1