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Publikācija: Physicochemical Pretreatment of Contaminated Microfibre Cloths after Their Use in Waterless Car Wash

Publication Type Publications in RTU scientific journal
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Physicochemical Pretreatment of Contaminated Microfibre Cloths after Their Use in Waterless Car Wash
Field of research 2. Engineering and technology
Sub-field of research 2.4 Chemical engineering
Authors Silvija Strikauska
Andrejs Bērziņš
Lauris Arbidāns
Agnese Kukela
Olga Muter
Maris Klavins
Keywords Chemical oxygen demand (COD), microfiber cloth, surfactants, waterless car cleaning
Abstract Contaminated microfibre cloths (80 % polyester and 20 % polyamide) which were previously used in waterless car cleaning process were treated in ultrasonic bath. Efficiency of water, ethanol, 2-propanol and ethylene glycol as liquid phase for ultrasonic treatment was compared. Chemical oxygen demand (COD), concentration of surfactants and total nitrogen in the extract were tested after 0 min, 10 min, 30 min and 60 min ultrasonic (US) exposure (42 kHz). In all cases the COD values gradually increased in a time dependent manner from 6 % to 35 % with ethanol, from 17 % to 37 % with ethyleneglycol and from 17 % to 33 % with 2-propanol at 10 to 60 min US mode, respectively.
DOI: 10.1515/msac-2015-0015
Reference Strikauska, S., Bērziņš, A., Arbidāns, L., Kukela, A., Muter, O., Klavins, M. Physicochemical Pretreatment of Contaminated Microfibre Cloths after Their Use in Waterless Car Wash. Materials Sciences and Applied Chemistry. Vol.32, 2015, pp.85-89. ISSN 1407-7353. e-ISSN 2255-8713. Available from: doi:10.1515/msac-2015-0015
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ID 21551