STP1240

    Morphology and pH Changes in Leached Solidified/Stabilized Waste Forms

    Published: Jan 1996


      Format Pages Price  
    PDF Version (124K) 7 $25   ADD TO CART
    Complete Source PDF (14M) 7 $98   ADD TO CART


    Abstract

    Leaching of cement-based waste forms in acetic acid solutions with different acidic strengths has been investigated in this work. The examination of the morphology and pH profile along the acid penetration route by an optical microscope and various pH color indicators is reported. A clear-cut leaching boundary, where the pH changes from below 6 in the leached surface layers to above 12 in the unleached waste form, was observed in every leached sample.

    Keywords:

    solidification, stabilization, hazardous wastes, pH, morphology, metals, leaching, microscopy


    Author Information:

    Cheng, KY
    Envir. Engr., Dames & Moore, Santa Ana, CA

    Bishop, PL
    Prof., University of Cincinnati, Cincinnati, OH


    Paper ID: STP14105S

    Committee/Subcommittee: D34.01

    DOI: 10.1520/STP14105S


    CrossRef ASTM International is a member of CrossRef.