PRODUCTION OF CONSTRUCTION AGGREGATES FROM FLUE GAS DESULFURIZATION SLUDGE

Wu, M.M. ; McCoy, D.C. ; Scandrol, R.O. ; Fenger, M.L. ; Withum, J.A. ; Statnick, R.M.

National Energy Technology Laboratory (U.S.)

关键词: Sludges;    Resource Recovery Facilities;    Waste Product Utilization;    01 Coal, Lignite, And Peat;    Desulfurization;   

DOI  :  10.2172/794137
RP-ID  :  FC26-98FT40027--02
RP-ID  :  FC26-98FT40027
RP-ID  :  794137

美国|英语

来源: UNT Digital Library

【 摘 要 】

The three main conclusions of this report are: (1) The pilot plant successfully demonstrated the continuous, fully-integrated, long-term process operation, including the mixing, pelletizing, and curing steps for aggregate production. The curing vessel, which was designed for the pilot plant test, was operated in a mass flow mode and performed well during pilot plant operation. (2) The pilot plant test demonstrated process flexibility. The same equipment was used to produce lightweight, medium-weight, and road aggregates. The only change was the mix formulation. Aggregates were produced from a variety of mix designs and from FGD sludge with solids concentrations between 45.0% and 56.7% and moisture contents between 55.0% and 43.3%. (3) The pilot plant provided operating data and experience to design and cost a commercial plant, which was not part of the cooperative agreement.