Description
This powerpoint presentation begins by providing a brief overview of desalination processes. A 3-stage concentrate treatment research project is presented, along with the experimental design that includes antiscalant oxidation, and zone decomposition in water – with and without H<sub>2</sub>O<sub>2</sub>. Research objectives were to: determine the effect of water composition onphosphonate oxidation;determine the effect of pH on phosphonate antiscalantoxidation; and,determine the primary oxidation pathway forphosphonate oxidation. Conclusions indicate that: application of RO inland requires significant reduction inconcentrate volumes, and concentrate treatment is necessary toachieve smaller volumes;antiscalant oxidation increases when calcium coordinationoccurs, and the effect of calcium on antiscalant oxidation isdifferent for each antiscalant;antiscalant oxidation increases with ozone concentration;antiscalant oxidation increases slightly with H2O2 addition, andhas an optimal pH of 6; and,with calcium chelation, the primary oxidation pathway is throughdirect reaction with ozone. Includes figures.
Product Details
- Edition:
- Vol. – No.
- Published:
- 11/01/2009
- Number of Pages:
- 30
- File Size:
- 1 file , 1.4 MB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
