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A rapid fractionation technique to characterise natural organic matter for the optimisation of water treatment processes

2004; UWA Publishing; Volume: 53; Issue: 2 Linguagem: Inglês

10.2166/aqua.2004.0008

1365-2087

Christopher W.K. Chow, Rolando Fabris, Mary Drikas,

Water Quality Monitoring Technologies

Research Article| March 01 2004 A rapid fractionation technique to characterise natural organic matter for the optimisation of water treatment processes Christopher W. K. Chow; Christopher W. K. Chow 1CRC for Water Quality and Treatment, Australian Water Quality Centre, PMB 3, Salisbury, SA 5108, Australia E-mail: chris.chow@sawater.com.au Search for other works by this author on: This Site PubMed Google Scholar Rolando Fabris; Rolando Fabris 1CRC for Water Quality and Treatment, Australian Water Quality Centre, PMB 3, Salisbury, SA 5108, Australia Search for other works by this author on: This Site PubMed Google Scholar Mary Drikas Mary Drikas 1CRC for Water Quality and Treatment, Australian Water Quality Centre, PMB 3, Salisbury, SA 5108, Australia Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2004) 53 (2): 85–92. https://doi.org/10.2166/aqua.2004.0008 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Christopher W. K. Chow, Rolando Fabris, Mary Drikas; A rapid fractionation technique to characterise natural organic matter for the optimisation of water treatment processes. Journal of Water Supply: Research and Technology-Aqua 1 March 2004; 53 (2): 85–92. doi: https://doi.org/10.2166/aqua.2004.0008 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex A rapid characterisation technique for natural organic matter (NOM), specifically designed to study water treatment processes, is reported. The organic carbon concentrations of four NOM fractions, very hydrophobic acids (VHA), slightly hydrophobic acids (SHA), hydrophilic charged (CHA) and hydrophilic neutral (NEU), were determined.Raw water and alum treated samples were analysed using this technique. A wide alum dose range (30–180 mg l−1 alum) was selected to simulate the situation of underdosing, conventional alum treatment, enhanced coagulation and extreme overdosing. The variation of the residual dissolved organic carbon (DOC) concentration of each fraction was used to interpret the removal mechanism under different situations. The results showed that the NEU fraction was hardly removed by alum treatment. The CHA fraction was readily removed in the underdosing and extreme overdosing situations. In the alum dose range covering the conventional to enhanced coagulation, both the SHA fraction and the VHA fraction were preferably removed. This technique could be applied in the operation of the treatment plant and could potentially guide treatment operators to control and monitor the treatment processes in the most effective way for NOM removal. characterisation, DOC, flocculation, fractionation techniques, NOM, water treatment This content is only available as a PDF. © IWA Publishing 2004 You do not currently have access to this content.