Beneficial Reuse of Coal Fly-Ash as Porous Reactive Aggregates for Removal of Hydrogen Sulfide

Tae Yoon Lee

doi:10.4028/www.scientific.net/MSF.544-545.525

Paper Titles

A Study on Thermal Stabilization of Spent Foundry Sand
p.507

A Window of Opportunity: Designing Carbon Nanomaterials for Environmental Safety and Health
p.511

Application in Up-Flow Filtration of Filter Material for Urban Stormwater Control
p.517

Application of Gypsum Granule as a Capping Material to Reduce Phosphorus Release from Sediment of Lake Paldang
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Beneficial Reuse of Coal Fly-Ash as Porous Reactive Aggregates for Removal of Hydrogen Sulfide
p.525

Changing Morphology and Crystal Structure in Ettringite by Trivalent Chromium
p.529

Characteristic of Carbonation Reaction from Municipal Solid Waste Incinerator Bottom Ash as a Function of Water Content and their Effect on the Stabilization of Copper and Lead
p.533

Conversion of Used Glass Bottles to Porous Materials by Using Hydrothermal Technique
p.537

Design of Glass-Ceramic Matrix by Modification of Microstructure for High Strength LTCC Application
p.541

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Beneficial Reuse of Coal Fly-Ash as Porous Reactive Aggregates for Removal of Hydrogen Sulfide

Abstract:

Artificial aggregates made of coal fly ash, which is classified as an industrial byproduct, was tested to oxidize hydrogen sulfide under various testing conditions. For the determination of optimum condition for converting coal fly ash to aggregates, specimens were prepared by varying ratio of fly ash, cement, water, and foaming agent. These specimens were tested to determine specific gravity, water absorption, and compressive strength. Specimens, which were used for the removal of hydrogen sulfide, were selected based on the measured specific gravity, water absorption, and compressive strength. Tests for hydrogen sulfide removal were performed via serial batch kinetic tests. Under the testing conditions used in this study, removal rates of hydrogen sulfide were linearly proportional to amounts of coal fly ash.