To improve coagulation characteristics and to reduce dossage of chemicals in watertreatment, polyaluminium sulfate was manufactured by reaction of polymerization between aluminium sulfate and sodium aluminate. As the results of affirmation and performance test, the yield of product was about 24% from molecular cut off levels by ultrafilteration method. The type of molecular is nearly affirmated as a kind of complex like Alm. (OH)n^(3m-n)+ from Scanning Electr Electron Mipy(S.E.M.) and X-ray diffraction test. Since the synthesized polymer was supposed to be quasi, further study for stabilization was required.

• 육창규(부산공업대학교 산업대학원) | Chang-Gyu YOUK
• 이내우(부산공업대학교 안전공학과) | Nae-Woo LEE
• 최재욱(부산공업대학교 안전공학과) | Jae-Wook CHOI
• 김종래(부산공업대학교 화학공학과) | Jong-Rae KIM