One-step cleaning-in-place for milking systems and mathematical modeling for deposit removal from stainless steel pipeline using blended electrolyzed oxidizing water

Xinmiao Wang, Virendra M. Puri, Ali Demirci, Robert E. Graves

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Cleaning-in-place (CIP) is widely used on dairy farms to clean and sanitize milking system components after the milking event is completed. An increasing number of dairy farms is adopting a one-step CIP, which combines the alkaline wash and acid wash cycles together as one wash cycle. This one-step CIP saves time, energy, and chemical consumption. Electrolyzed oxidizing (EO) water is an emerging technology producing alkaline and acidic EO water by electrolyzing dilute sodium chloride solution. Previous studies have shown that blending the alkaline EO water with the acidic EO water at a certain ratio could be used as an alternative one-step CIP. Therefore, this study was to evaluate the deposit removal during the one-step CIP wash using the already optimized blended EO water solution on the stainless steel surface evaluation simulator. Stainless steel straight pipes were used as specimens and the remaining milk deposit mass on the inner surfaces of the specimens was evaluated. A two-term exponential decay kinetic model was developed for one-step blended EO water wash with a fast deposit removal rate in the beginning of the wash cycle along with a slow deposit removal rate throughout the entire one-step wash. The proposed models agreed the experimental data with acceptable root mean square errors. The relative light unit (RLU) reading from ATP bioluminescence was used as an indirect evaluation at each time sampling point during the one-step wash cycle. Scanning electron microscopy (SEM) was used to understand the residual deposit morphology and qualitatively evaluate the specimen inner surfaces cleanliness after the one-step wash. Results showed that specimens at the completion of the blended EO water one-step wash could be considered as clean as indicated from the RLU cutoff reading of stainless steel material and the developed mathematical model for the blended EO water one-step wash was acceptable for the simulator application.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015
PublisherAmerican Society of Agricultural and Biological Engineers
Pages4208-4217
Number of pages10
ISBN (Electronic)9781510810501
StatePublished - Jan 1 2015
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015 - New Orleans, United States
Duration: Jul 26 2015Jul 29 2015

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015
Volume5

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015
CountryUnited States
CityNew Orleans
Period7/26/157/29/15

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Agronomy and Crop Science

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    Wang, X., Puri, V. M., Demirci, A., & Graves, R. E. (2015). One-step cleaning-in-place for milking systems and mathematical modeling for deposit removal from stainless steel pipeline using blended electrolyzed oxidizing water. In American Society of Agricultural and Biological Engineers Annual International Meeting 2015 (pp. 4208-4217). (American Society of Agricultural and Biological Engineers Annual International Meeting 2015; Vol. 5). American Society of Agricultural and Biological Engineers.