Evaluating the effect of antiscalants on membrane biofouling using FTIR and multivariate analysis. Issue 1 (2nd January 2019)

• Record Type: Journal Article
• Authors: Ashfaq, Mohammad Y.; Al-Ghouti, Mohammad A.; Qiblawey, Hazim; Zouari, Nabil
• Is Part Of: Biofouling. Volume 35:Issue 1(2019)
• Page Start: 1
• Page End: 14
• Publication Date: 2019-01-02
• Subjects: Fourier-transform infrared (FTIR) -- principle component analysis -- membrane deterioration -- conventional microbiological assays -- antiscalants -- membrane biofouling; Marine fouling organisms -- Periodicals; Materials -- Biodeterioration -- Periodicals; Fouling -- Periodicals; Biodegradation -- Periodicals; Environmental Microbiology -- Periodicals; Water Microbiology -- Periodicals; 576.165
• DOI: 10.1080/08927014.2018.1557637
• Languages: English
• ISSNs: 0892-7014

Abstract

Abstract: A combination of Fourier-transform infrared (FTIR) spectroscopy, multivariate analysis and conventional microbiological assays were utilized to characterize and differentiate membrane biofouling formed in the presence of antiscalants. Based on the FTIR spectra of biofouled reverse osmosis membranes obtained after incubating with antiscalants and H. aquamarina (as model microorganism), it was found that the biofouling intensity and composition was dependent on the type of antiscalants used. The growth of the bacterium was also highly affected by the type of antiscalants as shown by the colony forming unit (CFU) counts. By combining the techniques of principle component analysis (PCA) and FTIR, it was demonstrated that the biofouling was more intense and composed of proteins, polysaccharides and lipids, when polymer antiscalant was used. By applying PCA-FTIR with CFU counts, faster prediction of the effect of antiscalants on biofouling was made possible.