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AuthorAlmomani F.
AuthorBhosale R.R.
AuthorKhraisheh M.A.M.
AuthorShawaqfah M.
Available date2020-04-09T07:35:02Z
Publication Date2019
Publication NameFuel
ResourceScopus
ISSN162361
URIhttp://dx.doi.org/10.1016/j.fuel.2019.05.057
URIhttp://hdl.handle.net/10576/13948
AbstractThe effects of advanced oxidation processes (AOPs) including Fenton, ozone, and ozone combined with Fe(II) and H2O2 on disintegration/solubilization of three mixed agricultural solid wastes and subsequent anaerobic digestion were studied. Hydroxyl radicals (̇OH) generated from AOPs enhanced the oxidation of COD and solubilization of particulate COD (>0.45 µm). Upon treatment, substrates lost 15.2 to 29.5% of their solids, 33.6 to 37.5% of total chemical oxygen demand, 16.5 to 25% of total biopolymers (humic acids and protein). The soluble matter content increased by 3–6 folds facilitating metabolization rate of the treated substrate resulting in a 23–30% increase in the cumulative methane production and 11.2–25% increase in % digestion efficiency (%ηAD). Semi-batch tests revealed that mixing fresh and pre-treated substrate using a 50:50 ratio improved both the specific methane production (1.7 folds) and volatile sold reduction (79%) with a positive effect on sludge dewaterability.
Languageen
PublisherElsevier Ltd
SubjectDisintegration
Hydroxyl radicals
Metabolization
Methane production
Soluble content
TitleEnhancement of biogas production from agricultural wastes via pre-treatment with advanced oxidation processes
TypeArticle
Pagination964-974
Volume Number253


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