Weathered Fly Ash Does Not Affect Soil And Biosolid Carbon Mineralization
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Dosyalar
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Fly ash and biosolid wastes can be mixed and applied to soil as a means of disposal. A significant decline in soil respiration following waste application indicates restricted activities of functional microbial populations. Weathering decreases salinity and neutralizes alkalinity in fly ash, but there is little information on the effects of unweathered fly ash and biosolid mixtures on soil carbon (C) mineralization. The objective of this study was to determine the effects of a weathered fly ash-limestone scrubber residue (LSR) mixed with an aerobically digested biosolid on soil respiration in a laboratory incubation study. Biosolids significantly increased carbon dioxide (CO(2)) production (p 0.05), but up to 6.75% (w/w) fly ash did not. Mean total C mineralization was 770mg CO(2)-C kg(-1) soil in the control and 3,810mg CO(2)-C kg(-1) soil in the 6.75% (w/w) biosolid treatment. Fly ash with neutral pH and low salinity appears unlikely to affect soil and biosolid C mineralization.
Açıklama
Anahtar Kelimeler
Biosolid, carbon mineralization, fly ash, incubation, respiration
Kaynak
Communications in Soil Science and Plant Analysis
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
40
Sayı
Künye
Öğüt, M., Thom, W. O., Coyne, M., (2009). Weathered Fly Ash Does Not Affect Soil And Biosolid Carbon Mineralization. Communications in Soil Science and Plant Analysis, (40), 1790-1802. Doi: 10.1080/00103620902896696
