Challenges in Cleaning: Recent Developments and Future Prospects

Wilson, D.I.

doi:10.1080/01457630590890175

Cited by 97 publications

(48 citation statements)

References 29 publications

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“…A sketch of the different length scales involved in cleaning process plant is given as Figure 1. To remove deposit from surfaces is difficult both to understand scientifically and to do industrially (Wilson, 2005; Fryer et al, 2006) …”

mentioning

confidence: 99%

Matching the nano- to the meso-scale: Measuring deposit–surface interactions with atomic force microscopy and micromanipulation

Akhtar

Bowen

Asteriadou

et al. 2010

Food and Bioproducts Processing

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Many researchers have studied the effects of changing the surface on fouling and cleaning. In biofouling the 'Baier curve' is a well-known result which relates adhesion to surface energy, and papers on the effect of changing surface energy to food fouling can be found more than 40 years ago. Recently the use of modified surfaces, at least at a research level, has been widespread. Here two different ways of studying surface-deposit interactions have been compared. Atomic force microscopy (AFM) is a method for probing interactions at a molecular level, and can measure (for example) the interaction between substrate and surfaces at a nm-scale. At a μm-mm level, we have developed a micromanipulation tool that can measure the force required to remove the deposit; the measure incorporates both surface and bulk deformation effects. The two methods have been compared by studying a range of model soils: toothpaste, as an example of a soil that can be removed by fluid flow alone, and confectionery soils. Removal has been studied from glass, stainless steel and fluorinated surfaces as examples of the sort of surfaces that can be found in practice. AFM measurements were made by using functionalized tips in force mode. The two types of probe give similar results, although the rheology of the soil affects the measurement from the micromanipulation probe under some circumstances. The data suggests that either method could be used to test candidate surfaces. 2 INTRODUCTIONThe cleaning of process plant is a difficult multiscale problem; metre-scale plant becomes clean as a result of fluid and chemical action on surfaces of individual plant items, acting at the meso-and nano scale. A sketch of the different length scales involved in cleaning process plant is given as Figure 1. To remove deposit from surfaces is difficult both to understand scientifically and to do industrially (Wilson, 2005; Fryer et al., 2006)

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confidence: 99%

Matching the nano- to the meso-scale: Measuring deposit–surface interactions with atomic force microscopy and micromanipulation

Akhtar

Bowen

Asteriadou

et al. 2010

Food and Bioproducts Processing

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“…Also, a decrease of the outlet temperature to lower values was found. Wilson (2003) performed a study on the cleaning in place programme for the heat exchanger. The study identified that the key factor in developing cleaning protocol is the nature of the fouling deposit as this will determine the most appropriate cleaning technique.…”

Section: Fouling Mitigationmentioning

confidence: 99%

Fouling Phenomenon and Its Effect on Heat Exchanger: A Review

Ajayi¹,

Ogbonnaya²

2017

Frontiers in Heat and Mass Transfer

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Heat exchangers as a heat transfer device has gained wide applications across different levels of domestic and industrial set-ups. Various studies have been carried out to study, analyse and predict its performance. However, one major phenomenon that limits heat exchanger performance is attributed to fouling. Based on this, various studies and approaches have focused on reduction, elimination and mitigation of fouling. This study therefore focused on this. It reviewed several attempts that have been carried out to understand and mitigate the incidents of fouling in heat exchangers. The study found that despite the existing models developed towards understanding fouling, there is no single model that has provided an accurate prediction of fouling in all the different types of heat exchangers. Also, majority of existing results have limited applications and some of the solutions are only peculiar to particular type of heat exchanger. Further to this, majority of the study results only pointed to small scale laboratory test schemes and there is absence of in-situ measurements that predicts actual (real life) service performance.

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“…The objective of new detergent formulations is to return the soiled surface to the state it had prior to being soiled and this in a fast, environmental friendly and efficient way. Many aspects control how efficient a detergent works for soil cleaning including concentration, temperature, the properties of the water (which carries the detergent to the soiled surface), the detergents affinity for the soil, its ability to penetrate the soil and contact time in-between soil and detergent [1]. The first studies on detergency of detergent formulations date back to pre-1950 by pioneering studies [2].…”

Section: Introductionmentioning

confidence: 99%

Revealing Detergent Efficiency and Mechanism by Real-Time Measurement Using a Novel and Tailored QCM-D methodology

Olesen¹,

Leeuwen²,

Andersson³

2016

Tenside Surfactants Detergents

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Currently there is a lack of knowledge on how to scientifically and rapidly screen new detergent formulations. To address this, we employed the Quartz Crystal Microbalance with Dissipation technique which allows real-time acquisition of the cleaning process. Using an automated multichannel setup enabled rapid, simultaneous screening of eight formulations in regard to cleaning rate, soil swelling and soil removal. Herein, 9 commercially available dishwashing formulations are screened and ranked based on their ability to remove/swell standardized cooking grease soiled onto a silica surface. Moreover, we observed that soil swelling can be monitored via the dissipation factor. In summary, we present a real-time in-situ method for detergent formulation screening during the R&D phase of new detergents.Key words: Hard surface cleaning, automatic dishwashing (ADW), detergent, detergency, QCM-D Aufklärung der Waschmittelleistung und des Mechanismus mittels Echtzeit-Messungen mit einer neuen und maßge-schneiderten QCM-D-Methode. Derzeit besteht keine Erkenntnis darüber, wie man neue Waschmittelformulierungen wissenschaftlich und schnell auswählen kann. Um dieses Problem zu lösen, setzten wir die Quarzkristallmikrowaage mit Dissipationstechnik ein, die eine Echtzeiterfassung des Reinigungsvorgangs erlaubt. Der Gebrauch eines automatisierten Mehrkanalaufbaus ermöglicht ein schnelles simultanes Screening von acht Formulierungen hinsichtlich der Reinigungsgeschwindigkeit, der Schmutzquellung und der Schmutzentfernung. Es wurden auch neun kommerziell erhältliche Geschirrreiniger untersucht und nach ihrer Fähigkeit, Standardküchenfett von Quarzoberflächen zu entfernen bzw. auf ihnen anzuquellen, geordnet. Außerdem beobachteten wir, dass die Schmutzquellung mit dem Verlustfaktor überwacht werden kann. Zusammenfassend stellen wir eine Echtzeit-in-situ-Methode für das Screening von Reinigungsmittelformulierungen wäh-rend der Forschungs-und Entwicklungsphase von neuen Reinigungsmitteln vor.

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Challenges in Cleaning: Recent Developments and Future Prospects

Cited by 97 publications

References 29 publications

Matching the nano- to the meso-scale: Measuring deposit–surface interactions with atomic force microscopy and micromanipulation

Matching the nano- to the meso-scale: Measuring deposit–surface interactions with atomic force microscopy and micromanipulation

Fouling Phenomenon and Its Effect on Heat Exchanger: A Review

Revealing Detergent Efficiency and Mechanism by Real-Time Measurement Using a Novel and Tailored QCM-D methodology

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