Anaerobic digestion of paunch in a CSTR for renewable energy production and nutrient mineralization.
作者： Valentine Nkongndem Nkemka , Douglas H. Marchbank , Xiying Hao
DOI: 10.1016/J.WASMAN.2015.05.016
关键词: Environmental engineering 、 Anaerobic digestion 、 Chemistry 、 Analytical chemistry 、 Continuous stirred-tank reactor 、 Hydraulic retention time 、 Magnesium ion 、 Biogas 、 Digestate 、 Effluent 、 Mineralization (soil science)
摘要: Highlights: • Anaerobic digestion and nutrient mineralization of paunch in a CSTR. Low CH{sub 4} yield high productivity was obtained at an OLR 2.8 g VS L{sup −1} day{sup −1.} Post-digestion the digestate resulted 0.067 L g{sup VS. is recommended for further stabilization. - Abstract: A laboratory study investigated anaerobic continuous stirred tank reactor (CSTR) recovery biogas nutrients. At organic loading rate (OLR) with 30-day hydraulic retention time (HRT), 0.213 production 0.600 were obtained. Post-anaerobic effluent from CSTR 30 days 40 °C recovered as 4}, which 21% batch potential. this needed to meet stable criteria. Furthermore, low levels soluble ions such K{sup +}, Ca{sup 2+} Mg{sup foundmore » liquid fraction remainder could have been retained solid fraction. This demonstrates potential providing renewable energy. In addition, plant nutrients important sustainable agricultural system.« less
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