Evaluation on the Ground Granulated Blast Furnace Slag used in Municipal Solid Waste Incinerator Fly ash Solidification/Stabilization Treatment

• Main Authors: WANG,CHIEN-SHUN, 王建順
• Other Authors: CHANG, KUO-CHI
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/44028894590700152730

碩士 === 國立屏東科技大學 === 環境工程與科學系所 === 99 === MSWI were the most popular of the current MSW treatment, but after incineration will be generated fly ash which substance dioxins and heavy metals. There are solidification, stabilization and recycling such like water washing, acid extraction, melting, etc. of fly ash treatment process. At present, most of domestic MSWI fly ash were still use add chemical chelating agent and cement called solidification / stabilization process. The purpose of this study is evaluation on the ground granulated blast furnace slag (GGBFS) used in MSWI fly ash solidification/stabilization Treatment. The results showed that addition of GGBFS on MSWI fly ash treatment has a positive effect and add 20% GGBFS to treatment with chelating agent ratio of 3% of total lead dissolution rate of more than 95% reduction. And fly ash containing CaO, MgO, SiO2, Al2O3 ratio, the more similar to those with cement, the better treatment effect. In addition, the treatment given after 14 days curing period, Pb leaching will be more reduced. Practical use mode between GGBFS and cement were same but GGBFS was low-cost, it means GGBFS substitution treatment available to reduce the cost down. But if overused, they will increase weight and cause transportation and land filled costs increased. Comparison GGBFS and cement manufacture with CO2 emissions and energy consumption, GGBFS is better than cement in environmental protection and save energy benefits.