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Suitability of chlorine dioxide as a tertiary treatment for municipal wastewater and use of reclaimed water for overhead irrigation of baby lettuce
- Source :
- Food Control. 96:186-193
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
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
- Subjects :
- Irrigation
Chlorine dioxide
Agricultural irrigation
010401 analytical chemistry
04 agricultural and veterinary sciences
Pulp and paper industry
040401 food science
01 natural sciences
Reclaimed water
0104 chemical sciences
chemistry.chemical_compound
0404 agricultural biotechnology
Quantitative Real Time PCR
chemistry
Wastewater
Propidium monoazide
Environmental science
Sewage treatment
Food Science
Biotechnology
Subjects
Details
- ISSN :
- 09567135
- Volume :
- 96
- Database :
- OpenAIRE
- Journal :
- Food Control
- Accession number :
- edsair.doi...........04c474d41badd9db1abc7c7f37fd0aeb
- Full Text :
- https://doi.org/10.1016/j.foodcont.2018.08.036