Juretić, Hrvoje and Smoljanić, Goran and Ahac, Igor (2015) Removal of natural organic matter from surface waters by enhanced coagulation. = Removal of natural organic matter from surface waters by enhanced coagulation. In: 11th International Conference Laboratory Competence 2015, 21-24.10.2015., Zadar, Hrvatska.
Full text not available from this repository.Abstract
A bench-scale study was conducted to evaluate the effectiveness of enhanced coagulation for the removal of natural organic matter (NOM) from surface water. The jar tests were performed on a lake water samples by adding varying amounts of the two commonly used inorganic coagulants – aluminum sulfate (Al2(SO4)3 × 18H2O) and ferric chloride (FeCl3), without prior pH adjustment and the use of polymer as a flocculant aid. In order to compare performance of coagulants, equivalent doses were calculated and applied in jar tests in an incremental manner. The NOM removal efficiency was assessed by measuring the residual concentration of dissolved organic carbon (DOC), which was used in this study as a surrogate for NOM. Ferric chloride was slightly more effective than aluminum sulfate (alum) in removing NOM. At the optimal FeCl3 dose of 29.2 mg L-1, enhanced coagulation resulted in more than 63% DOC removal.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Keywords (Croatian): | enhanced coagulation, natural organic matter, ferric chloride, aluminum sulfate |
| Subjects: | TECHNICAL SCIENCE > Mechanical Engineering |
| Divisions: | 500 Department of Energy, Power Engineering and Environment > 540 Chair of Water and Environmental Engineering |
| Indexed in Web of Science: | No |
| Indexed in Current Contents: | No |
| Date Deposited: | 14 Apr 2016 10:25 |
| Last Modified: | 20 Sep 2017 07:29 |
| URI: | http://repozitorij.fsb.hr/id/eprint/5624 |
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