Modelling, optimisation and caustic recovery for more sustainable bottle washers
Y. Zhang (TU Delft - Civil Engineering & Geosciences)
Henri Spanjers – Mentor (TU Delft - Sanitary Engineering)
Luuk C. Rietveld – Graduation committee member (TU Delft - Water Management)
Sebastiaan Heijman – Graduation committee member (TU Delft - Sanitary Engineering)
Gijsbert Korevaar – Graduation committee member (TU Delft - Energy and Industry)
Paul Bruijn – Graduation committee member (Heineken Netherlands Supply)
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Abstract
In this research, a few initiatives were completed with practical industrial information and water samples from Heineken®. A Python model was built for an imaginary bottle washer, and tested with difference operational variables under the four testing scenarios. Based on the operational information fromthe Spanish brewery, a second Python model was built for the real-life case study, which was then optimised with several operational variables to reduce either WFP or CFP as caustic soda in five optimisation scenarios. With three water samples from three caustic baths from another bottle washer operated in a Belgian brewery, a composition analysis on significant water parameters was carried out in the Water Lab in TU Delft. This lab analysis gave a basic insight of the compositions of caustic wastewater from bottle washers, and provided possibility to discuss the treatment methods.