دورية أكاديمية
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Assessing the impact of environmental activities on natural organic matter in South Africa and Belgium.

التفاصيل البيبلوغرافية
العنوان: Assessing the impact of environmental activities on natural organic matter in South Africa and Belgium.
المؤلفون: Ndiweni SN; a Nanotechnology and Water Sustainability Research Unit, College of Science, Engineering and Technology, University of South Africa , Johannesburg , South Africa., Chys M; b LIWET, Department of Green Chemistry and Technology , Ghent University , Kortrijk , Belgium., Chaukura N; a Nanotechnology and Water Sustainability Research Unit, College of Science, Engineering and Technology, University of South Africa , Johannesburg , South Africa., Van Hulle SWH; b LIWET, Department of Green Chemistry and Technology , Ghent University , Kortrijk , Belgium., Nkambule TTI; a Nanotechnology and Water Sustainability Research Unit, College of Science, Engineering and Technology, University of South Africa , Johannesburg , South Africa.
المصدر: Environmental technology [Environ Technol] 2019 May; Vol. 40 (13), pp. 1756-1768. Date of Electronic Publication: 2019 Feb 17.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Taylor & Francis Country of Publication: England NLM ID: 9884939 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1479-487X (Electronic) Linking ISSN: 09593330 NLM ISO Abbreviation: Environ Technol Subsets: MEDLINE
أسماء مطبوعة: Publication: 2008- : Oxford : Taylor & Francis
Original Publication: London : Publications Division, Selper Ltd., 1990-
مواضيع طبية MeSH: Humic Substances* , Water Purification*, Belgium ; Seasons ; South Africa ; Spectrometry, Fluorescence
مستخلص: The presence and persistence of natural organic matter (NOM) in drinking water treatment plants (WTPs) requires a robust and rapid monitoring method. Measurement and monitoring of NOM fractions using current technology is time-consuming and expensive. This study uses fluorescence measurements in combination with Parallel Factor (ParaFac) analysis to characterize NOM fractions. This was achieved through: (1) determining the origin and composition of NOM fractions using fluorescence index (FI), humification index, biological index, and freshness index, and (2) using multivariate analysis to reveal key parameters and hidden NOM fraction characteristics influenced by seasonal changes and environmental activities. The ParaFac model revealed that the NOM fractions for Belgium plants are mainly hydrophobic acids, aromatic proteins, biological activity, humic acid-like, and fulvic acid-like moieties. The NOM fractions in South African plants were mainly aromatic protein, humic acid-like, fulvic acid-like, tryptophan-like, and protein-like moieties. For Belgium plants in spring FI >1.7, indicating high microbial sources, whereas FI < 1.3 for South African plants, signifying terrestrial sources of NOM. On the one hand, the first principal component (PC1) interpreted 33.02% of the total variance, and is a measure of fluorescent NOM relative concentration. On the other hand, the PC2 interpreted 21.47% and contains most of the information on humification, freshness, and biological indicators, while PC3 interpreted 17.74% and contains information on the origin and variation in environmental conditions. These results will assist in developing a method for online monitoring of NOM fractions in water sources based on environment activities and spectral measurements.
فهرسة مساهمة: Keywords: Fluorescence excitation-emission matrix; fluorescence index; natural organic matter; parallel factor (ParaFac) analysis; principal component analysis
المشرفين على المادة: 0 (Humic Substances)
تواريخ الأحداث: Date Created: 20190201 Date Completed: 20190909 Latest Revision: 20190909
رمز التحديث: 20221213
DOI: 10.1080/09593330.2019.1575920
PMID: 30702027
قاعدة البيانات: MEDLINE
الوصف
تدمد:1479-487X
DOI:10.1080/09593330.2019.1575920