Fouling of Reverse Osmosis Membrane with Effluent Organic Matter: Componential Role of Hydrophobicity

Stein, Noa; Sharon-Gojman, Revital; Mauter, Meagan S.; Bernstein, Roy; Herzberg, Moshe

doi:10.1021/acsestwater.3c00116

Cited by 2 publications

(1 citation statement)

References 73 publications

(139 reference statements)

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“…Within drinking water treatment plants (DWTPs), DOM monitoring is essential due to its many detrimental associated issues. For example, we can cite the generation of genotoxic and carcinogenic disinfection by-products (e.g., trihalomethanes or haloacetic acids) occurring after oxidation by the chlorination process [3], microorganism proliferation [4], or even membrane fouling enhancement [5], all of which result in an overall increase in water production costs.…”

Section: Introductionmentioning

confidence: 99%

Dissolved Organic Matter Behaviour by Conventional Treatments of a Drinking Water Plant: Controlling Its Changes with EEM-PARAFAC

Sciscenko,

Binetti,

Escudero-Oñate

et al. 2024

Applied Sciences

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In the last 20 years, several articles related to the use of fluorescence excitation–emission matrices—parallel factor analysis (EEM-PARAFAC) to monitor dissolved organic matter (DOM) in drinking- and wastewater treatment plants were published. Noteworthy, its use in respective quality control laboratories remains scarce. To extend its popularisation, in this work, EEM-PARAFAC was employed to analyse the DOM composition changes along the different stages of the drinking water treatment plant administrated by Società Metropolitana Acque Torino. The best PARAFAC model was the one of three components, indicating that the Po River is constituted, mainly, by humic acid-like (HA-L) and tryptophan-like (Try-L) substances, the tyrosine-like ones being negligible (Tyr-L). Results indicated that physical treatments (sedimentation) did not produce a reduction in the PARAFAC scores; however, a 50% decay in 254 nm absorbance was observed. Fluorescent DOM was only removed with chemical treatments, obtaining ca. 70% HA-L scores decay with ozonation and 40% with chlorination. Furthermore, although ozonation degraded HA-L substances, the Try-L scores increased by 25%, indicating the transformation of HA-L into smaller molecules. On the contrary, total organic carbon measurements only exhibited a significant change when comparing the treatment plant’s inlet and outlet (approximately a 45% decrease), but not within intermediate processes.

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Section: Introductionmentioning

confidence: 99%