LSRE-Laboratory of Separation and Reaction Engineering-Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal.
Bioresour Technol. 2012 Nov;124:276-82. doi: 10.1016/j.biortech.2012.08.022. Epub 2012 Aug 17.
Category 2 animal by-products that need to be sterilized with steam pressure according Regulation (EC) 1774/2002 are studied. In this work, 2 sets of experiments were performed in mesophilic conditions: (i) biomethane potential determination testing 0.5%, 2.0% and 5.0% total solids (TS), using sludge from the anaerobic digester of a wastewater treatment plant as inoculum; (ii) biodegradability tests at a constant TS concentration of 2.0% and different inoculum sources (digested sludge from a wastewater treatment plant; granular sludge from an upflow anaerobic sludge blanket reactor; leachate from a municipal solid waste landfill; and sludge from the slaughterhouse wastewater treatment anaerobic lagoon) to select the more adapted inoculum to the substrate in study. The higher specific methane production was of 317 mL CH(4)g(-1) VS(substrate) for 2.0% TS. The digested sludge from the wastewater treatment plant led to the lowest lag-phase period and higher methane potential rate.
研究了需要根据法规 (EC) 1774/2002 用蒸汽压力进行消毒的 2 类动物副产品。在这项工作中，在中温条件下进行了 2 组实验：(i)使用来自污水处理厂厌氧消化器的污泥作为接种物，测定生物甲烷潜力测试 0.5%、2.0%和 5.0%总固体 (TS)；(ii)在恒定 TS 浓度为 2.0%和不同接种物来源（污水处理厂的消化污泥；上流式厌氧污泥床反应器的颗粒污泥；城市固体废物填埋场的渗滤液；和屠宰废水处理厌氧池的污泥）下进行生物降解性测试，以选择更适应研究中底物的接种物。对于 2.0% TS，较高的比甲烷产率为 317 mL CH(4)g(-1) VS(substrate)。来自污水处理厂的消化污泥导致最短的迟滞期和更高的甲烷潜能率。
