Cnr, Istituto di Ricerca Sulle Acque, Area della Ricerca di Roma 1, Monterotondo (Roma), Italy.
Cnr, Istituto di Ricerca Sulle Acque, Area della Ricerca di Roma 1, Monterotondo (Roma), Italy.
Bioresour Technol. 2013 Nov;147:623-626. doi: 10.1016/j.biortech.2013.08.054. Epub 2013 Aug 14.
Olive husks, typical solid by-products from the olive oil industry, were selected to carry out anaerobic digestion tests. Before digestion, olive husks were subjected to ultrasonic or thermal pretreatments in order to release the organic matter into solution. Both sonication and thermal pretreatment allowed to solubilize the particulate matter with 22% and 72% increase in soluble organics of olive husks, respectively. Nevertheless, such pretreatments caused the release of unwanted molecules in solution, with the related risks of inhibition of the methanogenic process. Biochemical Methane Potential (BMP) tests on olive husks mixed with olive-mill wastewater and dairy wastewater, either pretreated or not, showed that ultrasound pretreatment resulted in 15% increase in volatile solids reduction and a 13% increase in biogas production, while after thermal pretreatment no benefits were observed.
橄榄壳是橄榄油工业中典型的固体副产物，被选来进行厌氧消化试验。在消化之前，橄榄壳经过超声或热预处理，以将有机物释放到溶液中。超声和热预处理分别使橄榄壳中的可溶解有机物增加了 22%和 72%，从而使颗粒物质溶解。然而，这些预处理会导致溶液中释放出不需要的分子，从而对甲烷生成过程产生抑制的相关风险。对未经预处理和经超声预处理或热预处理的橄榄壳与橄榄油厂废水和乳废水混合进行生物化学甲烷潜能（BMP）测试表明，超声预处理使挥发性固体减少增加了 15%，沼气产量增加了 13%，而热预处理后则没有观察到任何益处。
