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Dry Mesophilic Anaerobic Digestion of Separately Collected Organic Fraction of Municipal Solid Waste: Two-Year Experience in an Industrial-Scale Plant
Processes ( IF 3.5 ) Pub Date : 2021-01-24 , DOI: 10.3390/pr9020213
Adolfo Le Pera , Miriam Sellaro , Massimo Migliori , Micaela Bianco , Giuseppe Zanardi

In this paper, performance analysis over two years’ operation of an industrial anaerobic digestion (AD) plant of a separately collected organic fraction of municipal solid waste is presented. The continuous plug-flow AD plant is still regularly operating and it has been fully operational since September 2018. Since then, it has been supplied with 40,000 t/y of pretreated separately collected organic fraction of municipal solid waste from municipalities of the Calabria region in Southern Italy. The AD process is carried out in a mesophilic regime at 40 ± 0.5 °C, using a constant hydraulic retention time (HRT) of 22 days and a substrate with average total solids and average total volatile solids of 30.0% and 22.2%, respectively. In the last two years, the plant produced an average of 191 m3 and 860 m3 of biogas per tonne (t) of organic input material and of total volatile solids, respectively, with an average methane specific production of 508 m3/t (total volatile solids). The average CH4 percentage in the biogas was of 59.09%. The obtained results came out from the combination of high organic content of separately collected organic fraction of municipal solid waste, optimized pretreatment system and operating conditions adopted.

中文翻译:

分别收集城市固体废物有机部分的干中温厌氧消化:工业规模工厂的两年经验

本文介绍了工业厌氧消化(AD)工厂对城市固体废物有机物单独收集的两年运行过程中的性能分析。连续推流式AD工厂仍在正常运行,自2018年9月以来已全面投入运营。自那时以来,该工厂已向卡拉布里亚地区卡拉布里亚地区各市的40,000吨/年的城市固体废物有机物进行了预处理。意大利南部。AD过程是在40±0.5°C的中温环境中进行的,使用22天的恒定水力停留时间(HRT)和平均总固体含量和平均总挥发性固体含量分别为30.0%和22.2%的基质。在过去两年中,该工厂的平均产量为191 m 3和860 m每吨有机输入物质和总挥发性固体分别为3沼气,平均甲烷比产量为508 m 3 / t(总挥发性固体)。沼气中的平均CH 4百分比为59.09%。获得的结果是由于将城市生活垃圾中单独收集的有机部分的有机物含量高,优化的预处理系统和采用的操作条件相结合而得出的。
更新日期:2021-01-24
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