Surface modification of water treatment equipment for reducing CaSO_4 scale formation

摘要

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 CaSO_4 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 CaSO_4 deposits.The Ni-P-PTFE coatings have a potential for reducing CaSO_4 scale formation on water treatment equipment.