Recovery of intermittent cycle extended aeration system sludge through conversion into biodiesel by in-situ transesterification
نویسندگان
چکیده
The feasibility of using intermittent cycle extended aeration system (ICEAS) sludge as a lipid feedstock for biodiesel production was investigated. main effects in situ transesterification parameters, reaction temperature (30–70 °C), time (4–24 h), catalyst concentration (1–5% v/v), and proportion methanol to dry (5–25 ml/g) at five-levels well their simultaneous interactions were evaluated develop an empirical model. Optimized conditions obtained 60 °C, 4.65% (v/v) H2SO4, 17.84 h time, 5:1 (ml/g), leading maximum 18.58% (w/w) yield with 94.23% fatty acid methyl ester content. This result higher comparison yields derived from conventional activated sludge, membrane bioreactor anaerobic-anoxic-oxic processes. ICEAS technology advantages are owned its different configurations one blended shorter hydraulic retention chemical oxygen demand nitrogen ratios. predominance esters such palmitic, oleic, palmitoleic, stearic, linoleic myristic ester, the biodiesel, indicated suitability production.
منابع مشابه
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ژورنال
عنوان ژورنال: Renewable Energy
سال: 2021
ISSN: ['0960-1481', '1879-0682']
DOI: https://doi.org/10.1016/j.renene.2020.08.116