PRE-OXIDATION EFFECTS ON TOC REMOVAL BY NANOFILTRATION FROM WATER

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TORABIAN A.; NABI BIDHENDI GH.R.; GHADIM KHANI A.A.; ETEMADI HOSSEIN; SHOKOUHI MEHRI

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Paper Information

Journal: WATER AND WASTEWATER Year:2009 | Volume:19 | Issue:4 (68) Page(s): 19-24

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Information Journal Paper

Title

PRE-OXIDATION EFFECTS ON TOC REMOVAL BY NANOFILTRATION FROM WATER

Author(s)

Keywords

WATER TREATMENTQ2

PRE-OXIDATIONQ4

TOTAL ORGANIC CARBONQ4

NANOFILTRATIONQ3

MEMBRANE PROCESSQ4

Abstract

Natural organic matter (NOM) forms the group of principal precursors to organic disinfection byproducts (DBPS), which have been recognized to be human carcinogens. In fact, a high TOC concentration, used as an indicator of NOM, indicates a high potential for DBP formation. The aim of the present work was to investigate the effects of NANOFILTRATION with and without preozonation on TOC removal. NANOFILTRATION alone at operating pressures of 4 and 8 bars could reduce TOC levels to slightly less than 2 mgL-1, which recorded a profile of success for all the experiments. This is while preozonation at a concentration of 2 mgL-1 recorded an effluent TOC level of 3.3 mgL-1, which is not an acceptable record. Preozonation at a concentration of 4 mgL-1 increased effluent TOC to 4.2 mgL-1, which indicates that preozonation could convert NOM from higher-to lower-MW fractions, thus increasing effluent TOC. It was also shown that preozonation-nanofiltration increased effluent TOC, as compared to NANOFILTRATION alone.

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References

EVALUATION OF EFFICIENCY NITRATE REMOVAL OF A NANOFILTRATION MEMBRANE FROM DRINKING WATER UNDER DIFFERENT OPERATING CONDITIONS

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APA: Copy

TORABIAN, A., NABI BIDHENDI, GH.R., GHADIM KHANI, A.A., ETEMADI, HOSSEIN, & SHOKOUHI, MEHRI. (2009). PRE-OXIDATION EFFECTS ON TOC REMOVAL BY NANOFILTRATION FROM WATER. WATER AND WASTEWATER, 19(4 (68)), 19-24. SID. https://sid.ir/paper/103496/en

Vancouver: Copy

TORABIAN A., NABI BIDHENDI GH.R., GHADIM KHANI A.A., ETEMADI HOSSEIN, SHOKOUHI MEHRI. PRE-OXIDATION EFFECTS ON TOC REMOVAL BY NANOFILTRATION FROM WATER. WATER AND WASTEWATER[Internet]. 2009;19(4 (68)):19-24. Available from: https://sid.ir/paper/103496/en

IEEE: Copy

A. TORABIAN, GH.R. NABI BIDHENDI, A.A. GHADIM KHANI, HOSSEIN ETEMADI, and MEHRI SHOKOUHI, “PRE-OXIDATION EFFECTS ON TOC REMOVAL BY NANOFILTRATION FROM WATER,” WATER AND WASTEWATER, vol. 19, no. 4 (68), pp. 19–24, 2009, [Online]. Available: https://sid.ir/paper/103496/en

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