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Surface modification of water treatment equipment for reducing CaSO4 scale formation |
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| Authors: | Q Zhao Y Liu S Wang |
| Affiliation: | aDepartment of Mechanical Engineering, University of Dundee, Dundee, DD1 4HN, UK Tel. +44 (1382) 345651; Fax: +44 (1382) 345508 bDepartment of Civil Engineering, School of Engineering, University of Surrey, Guildford GU2 7XH, UK |
| Abstract: | Scale formation has been recognised as a widespread problem in membrane filtration and water desalination processing for water treatment. In this paper, the effect of surface energy of Ni-P-PTFE composite coatings on the microstructure and adhesion of CaSO4 deposits was investigated. The surface energies of the Ni-P-PTFE coatings were altered by changing the PTFE proportion in the coatings. Initial experimental results showed that the surface energy of the coatings had a significant influence on the microstructure and adhesion of CaSO4 deposits. The Ni-P-PTFE coatings have a potential for reducing CaSO4 scale formation on water treatment equipment. |
| Keywords: | CaSO4 scale Ni-P-PTFE Surface energy Water treatment |
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