POSSIBILITY OF USING IMAGE ANALYSIS TO QUANTIFY CLEANING OF DEPOSITS

  • Tatiphon Chutrakul Faculty of Engineering, Thammasat University
  • Supakorn Lertruamporn Faculty of Engineering, Thammasat University
  • Mnisnutkan Thongpiam Faculty of Engineering, Thammasat University
  • Y.M. John Chew Faculty of Engineering, University of Bath
  • Phanida Saikhwan Faculty of Engineering, Thammasat University
Keywords: cleaning, image analysis, gravimetric method, fouling, fluid dynamic gauging (FDG)

Abstract

Cost of cleaning of fouling layers from equipment surfaces is large. Hence, an optimisation of cleaning process is vital. Nevertheless, the techniques commonly used to study cleaning have limitations such as time-consuming, etc. Hence, this work aimed to investigate the possibility of using image analysis (Image J) to quantify cleaning efficiencies of 3 systems: (i) coconut milk foulants found in a pasteurization process (ii) coconut milk foulants on fabric and (iii) milk foulants found on membrane. It was found that cleaning efficiencies from the image analysis was similar to that obtained from the traditional methods. Moreover, similar relationship between cleaning conditions and cleaning efficiencies were obtained. Therefore, image analysis could replace the traditional evaluation method. Time and cost used in the cleaning study can be reduced and this is beneficial when several cleaning conditions must be investigated. Nevertheless, there was limitation of using the image analysis when fouling particles could penetrate inside the pores; they could not be seen from the image. In this case, image analysis can still be used to narrow down conditions that give high cleaning efficiencies. These conditions then are studied further using the traditional methods.

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References

Agarwal, A., Xu, H., Ng, W.J., & Liu, Y. (2012). Biofilm detachment by self-collapsing air microbubbles:

a potential chemical-free cleaning technology for membrane biofouling. Journal of Materials Chemistry, 22(5), 2203-2207.

Chew, J.Y.M. (2004). Development of fluid dynamic gauging for cleaning studies. Ph.D.Thesis, University of Cambridge, UK.

Chew, J.Y.M., Paterson, W.R., & Wilson, D.I. (2004). Fluid dynamic gauging for measuring the strength

of soft deposits. Journal of Food Engineering, 65(2), 175-187.

Chew, Y.M.J., Paterson, W.R., & Wilson, D.I. (2007). Fluid dynamic gauging: A new tool to study deposition

on porous surfaces. Journal of Membrane Science, 296(1-2), 29-41.

Chen, X.D., Li, D.X.Y., Lin, S.X.Q., & Özkan, N. (2002). On-line fouling/cleaning detection by measuring

electric resistance-equipment development and application to milk fouling detection and

chemical cleaning monitoring. Journal of Food Engineering, 61(2), 181-189.

Chutrakul, T., Rangton, N., Daochot,R., Sattayathitikul, N., & Saikhwan.P. (2019) Enzyme-based

integrated solution to cleaning of coconut milk foulants. Food and Bioproducts Processing, 113, 93–100.

Ioanid, E.G., Ioanid, A., Goras, B.T., & Goras, L. (2013) Assessment of the cleaning effect of HF cold

plasma by statistical processing of photographic image. Measurement, 46, 2569-2576.

Moropoulou, A., Delegou, E.T., Vlahakis, V., & Karaviti, E. (2007). Digital processing of SEM images for

the assessment of evaluation indexes of cleaning interventions on Pentelic marble surfaces. Materials Characterization, 58 (11-12), 1063-1069.

Paul, T., Jana, A., Das, A., Mandal, A., Halder, S.K., Das Mohapatra, P.K., & Mondal, K.C. (2014). Smart

cleaning-in-place process through crude keratinase: an eco-friendly cleaning techniques towards dairy industries. Journal of Cleaner Production, 76, 140-153.

Peck, O.P.W., Bird, M.R., Bolhuis, A., & Chew, Y.M.J. (2013). Application of fluid dynamic gauging in the characterisation and removal of biofouling deposits, pp.(685-694). In Malayeri, Müller-Steinhagen & Watkinson (Ed.), International Conference on Heat Exchanger Fouling and Cleaning, 9-14 June 2013, Budapest, Hungary: Publico.

Porcelli, N., & Judd, S. (2010). Effect of cleaning protocol on membrane permeability recovery:

A sensitivity analysis. Journal American Water Works Association, 102(12), 78-86.

Tuladhar, T.R., Paterson, W.R., Macleod, N., & Wilson, D.I. (2000). Development of a novel non-contact

proximity gauge for thickness measurement of soft deposits and its application in fouling studies. The Canadian Journal of Chemical Engineering, 78(5), 935-947.

Wang, X.H., Wang, C., Tang, C.Y.Y., Hu, T.Z., Li, X.F., & Ren, Y.P. (2017). Permeability recovery of fouled forward osmosis membranes by chemical cleaning during a long-term operation of anaerobic osmotic membrane bioreactors treating low-strength wastewater. Water Research, 123, 505-512.

Wilson D.I. (2005). Challenges in cleaning: recent developments and future prospects. Heat Transfer

Engineering, 26(1), 51-59.

Published
2021-06-02
Section
บทความวิจัย (Research Article)