- Title
- Co-composting solid biowastes with alkaline materials to enhance carbon stabilization and revegetation potential
- Creator
- Chowdhury, Saikat; Bolan, Nanthi S.; Seshadri, Balaji; Kunhikrishnan, Anitha; Wijesekara, Hasintha; Xu, Yilu; Yang, Jianjun; Kim, Geon-Ha; Sparks, Donald; Rumpel, Cornelia
- Relation
- ARC.DP140100323
- Relation
- Environmental Science and Pollution Research Vol. 23, Issue 8, p. 7099-7110
- Publisher Link
- http://dx.doi.org/10.1007/s11356-015-5411-9
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2016
- Description
- Co-composting biowastes such as manures and biosolids can be used to stabilize carbon (C) without impacting the quality of these biowastes. This study investigated the effect of co-composting biowastes with alkaline materials on C stabilization and monitored the fertilization and revegetation values of these co-composts. The stabilization of C in biowastes (poultry manure and biosolids) was examined by their composting in the presence of various alkaline amendments (lime, fluidized bed boiler ash, flue gas desulphurization gypsum, and red mud) for 6 months in a controlled environment. The effects of co-composting on the biowastes' properties were assessed for different physical C fractions, microbial biomass C, priming effect, potentially mineralizable nitrogen, bioavailable phosphorus, and revegetation of an urban landfill soil. Co-composting biowastes with alkaline materials increased C stabilization, attributed to interaction with alkaline materials, thereby protecting it from microbial decomposition. The co-composted biowastes also increased the fertility of the landfill soil, thereby enhancing its revegetation potential. Stabilization of biowastes using alkaline materials through co-composting maintains their fertilization value in terms of improving plant growth. The co-composted biowastes also contribute to long-term soil C sequestration and reduction of bioavailability of heavy metals.
- Subject
- biowastes; co-composting; alkaline materials; carbon stabilization; decomposition; landfill; revegetation
- Identifier
- http://hdl.handle.net/1959.13/1319944
- Identifier
- uon:24017
- Identifier
- ISSN:0944-1344
- Language
- eng
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