Characteristics of Ash (Coal, Wood and Rice Hull) and Its Potential Use as an Additive in Poultry Manure for Protecting the Environment
2006
Nahm, K.H. (Daegu University, Gyeongsan, Republic of Korea), E-mail: [email protected]
Ash amendment to manure holds potential as a method to neutralize manure for reducing odor and reduce phosphorus (P) solubility in runoff from fields where manure has been applied. This review focuses on the literature published about ash characteristics and their environmental uses. There is no uniform physico-chemical definition of the selected ashes (coal fly ash-CFA, wood ash-WA, and rice hull ash-RHA) used in various studies. These ashes vary greatly in their acidity (pH6.0)or alkalinity (pH12.5) based on the conditions at which they were formed and the composition of the ash source.
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