Department of Environmental Technologies, University of Cádiz, Spain.
Department of Environmental Technologies, University of Cádiz, Spain.
Bioresour Technol. 2015 Mar;180:177-84. doi: 10.1016/j.biortech.2014.12.056. Epub 2014 Dec 31.
The feasibility of anaerobic co-digestion of sewage sludge (SS) and sugar beet pulp lixiviation (SBPL) was assessed. Mesophilic and thermophilic batch assays of five different SS/SBPL ratios were used to investigate the effect of temperature, providing basic data on methane yield and reduction in total volatiles. Microbe concentrations (Eubacteria and methanogenic Archaea) were linked to traditional parameters, namely biogas production and removal of total volatile solids (TVS). The relationship between Eubacteria and Archaea was analysed. Given equal masses of organic matter, net methane generation was higher in the mesophilic range on the biochemical methane potential (BMP) test. Methane yield, TVS removal data and high levels of volatile fatty acids provided further evidence of the best behaviour of the mesophilic range. At the end of testing the microbial population under of the reactors consisted of Eubacteria and Archaea, with Eubacteria predominant in all cases.
评估了污水污泥（SS）和糖甜菜浆渗滤物（SBPL）的厌氧共消化的可行性。使用五个不同的 SS/SBPL 比例的中温和高温批量分析来研究温度的影响，提供了甲烷产量和总挥发物减少的基本数据。微生物浓度（细菌和产甲烷古菌）与传统参数（沼气产生和总挥发性固体去除）相关联。分析了细菌和古菌之间的关系。在生物甲烷潜力（BMP）测试中，给定相等质量的有机物，中温范围内的净甲烷生成量更高。甲烷产量、TVS 去除数据和高水平的挥发性脂肪酸提供了中温范围最佳行为的进一步证据。在测试结束时，反应器中的微生物种群由细菌和古菌组成，在所有情况下细菌都是主要的。
