Fly Ash

Reuse, Environmental Problems & Related Issues

Buch | Hardcover

231 Seiten

2010
Nova Science Publishers Inc (Verlag)
978-1-60741-632-6 (ISBN)

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Fly ash is one of the residues generated in the combustion of coal. Fly ash is generally captured from the chimneys of coal-fired power plants, and is one of two types of ash that jointly are known as coal ash; the other, bottom ash, is removed from the bottom of coal furnaces. Depending upon the source and makeup of the coal being burned, the components of fly ash vary considerably, but all fly ash includes substantial amounts of silicon dioxide (SiO2) (both amorphous and crystalline) and calcium oxide (CaO). Toxic constituents include arsenic, beryllium, boron, cadmium, chromium, chromium VI, cobalt, lead, manganese, mercury, molybdenum, selenium, strontium, thallium, and vanadium, along with dioxins and PAH compounds. In the past, fly ash was generally released into the atmosphere, but pollution control equipment mandated in recent decades now require that it be captured prior to release. In the US, fly ash is generally stored at coal power plants or placed in landfills. About 43 percent is recycled, often used to supplement Portland cement in concrete production. It is increasingly finding use in the synthesis of geopolymers and zeolites.

Preface; Effects of Residual Oil Fly Ash on Pulmonary Host Defence; Fly ash properties, disposal, and treatment in modernised waste incineration plant with catalytic filter; Theoretical Foundation Of Using Fly Ash For Improving Durability And Inhibiting Alkali-Silica Reaction-Induced Deterioration of Concrete; Deposition of fly ash and atmospheric particles on historical monuments: comparative results from polluted and non-polluted areas; Fly Ash Composites with Polyaniline: Synthesis, Characterisation and Conductivity Measurements; Fly ash from the main lignite-fired power plants of northern Greece: utilisation constraints and environmental implications; Recycling of Solid Waste Fly ash and Residue Carbon as Low Cost Adsorbents; A Fast Structure Identification Method for the Abundant Organic and Inorganic Compounds in MSWI Ash Wastes; Recycling of wood ash for reintroduction to forest soils; Combining Spent Refractory, Coal Fly Ash, and Japanese Roof Tiles (Kawara) as Concrete Additives; Index.

Erscheint lt. Verlag	1.7.2010
Zusatzinfo	Illustrations
Verlagsort	New York
Sprache	englisch
Maße	260 x 180 mm
Gewicht	628 g
Themenwelt	Technik ► Umwelttechnik / Biotechnologie
ISBN-10	1-60741-632-8 / 1607416328
ISBN-13	978-1-60741-632-6 / 9781607416326
Zustand	Neuware