Enhancement of a spent irrigation water recycling process: a case study in a food business

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dc.contributor.authorGarcia-Garcia, Guillermo
dc.contributor.authorJagtap, Sandeep
dc.date.accessioned2021-11-09T18:28:19Z
dc.date.available2021-11-09T18:28:19Z
dc.date.issued2021-11-04
dc.description.abstractFood operations use vast amounts of water. To reduce utility costs as well as concerns regarding water depletion in ecosystems, food businesses usually try to reuse their water. However, this often needs a recycling process to ensure the water is of good quality and safe to reuse in a food environment. This paper presents a case study of a grower of beansprouts and other varieties of sprouted seeds that uses six million litres of water weekly. Approximately 60% of their spent irrigation water is recycled using both 50 µm and 20 µm drum filtration. In addition, chlorine dioxide is used as part of the recycling process as a disinfectant. Our analysis demonstrated that the size of suspended solid particles in over 90% of the cumulative sample tested was smaller than the current 20 µm filter in place, highlighting that the existing system was ineffective. We, then, explored options to enhance the water recycling system of the company. After careful analysis, it was proposed to install a membrane-filtration system with ultraviolet technology to increase the finest level of filtration from the existing 20 µm to 0.45 µm absolute and sterilize any remaining bacteria. This not only improved water quality, but also allowed for the removal of chemicals from the recycling system, delivering both financial and technical improvements.en_UK
dc.identifier.citationGarcia-Garcia G, Jagtap S. (2021) Enhancement of a spent irrigation water recycling process: a case study in a food business. Applied Sciences, Volume 11, Issue 21, November 2021, Article number 10355en_UK
dc.identifier.issn2076-3417
dc.identifier.urihttps://doi.org/10.3390/app112110355
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/17256
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectirrigationen_UK
dc.subjectfooden_UK
dc.subjectsproutsen_UK
dc.subjectrecyclingen_UK
dc.subjectfiltrationen_UK
dc.subjectreverse osmosisen_UK
dc.subjectchlorine dioxideen_UK
dc.subjectchlorateen_UK
dc.subjectsuspended solidsen_UK
dc.titleEnhancement of a spent irrigation water recycling process: a case study in a food businessen_UK
dc.typeArticleen_UK

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