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Comparison of cleaning of toothpaste from surfaces and pilot scale pipework

Paper ID Volume ID Publish Year Pages File Format Full-Text
19152 43046 2010 9 PDF Available
Title
Comparison of cleaning of toothpaste from surfaces and pilot scale pipework
Abstract

Experiments have been conducted to study the cleaning of toothpaste at two length scales. Laboratory scale cleaning studies have been conducted on fouled coupons in a horizontal flow cell. At pilot scale, the cleaning of fully fouled pipes has been studied and monitored by temperature, conductivity and turbidity probes. Removal from the pipe occurs in two steps: core removal, leaving a thin wall layer that is then removed by thin film removal that takes the majority of the cleaning time. At both scales, cleaning time is influenced by temperature and velocity of the cleaning fluid. The pipe length range studied, 0.3–2 m, does not appear to have a significant impact on cleaning time. Cleaning time correlates well with (shear stress)−1. A dimensionless cleaning time is defined and a correlation between cleaning time and Reynolds number developed.

Research highlights▶ Laboratory scale cleaning studies have been conducted on fouled coupons in a horizontal flow cell. ▶ At pilot scale, the cleaning of fully fouled pipes has been studied. ▶ The pipe length range studied, 0.3–2 m, does not affect cleaning time. ▶ Cleaning time correlates well with (shear stress)−1. ▶ A correlation between dimensionless cleaning time and Reynolds number is developed.

Keywords
Cleaning; Toothpaste; CIP; Hygiene; Flow effects; Fouling
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Comparison of cleaning of toothpaste from surfaces and pilot scale pipework
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 88, Issue 4, December 2010, Pages 392–400
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us