Fly ash is an important source of trace elements that can act as cofactors of enzyme systems and improve anaerobic digestion processes. However, its effect on anaerobic digestion using real wastewater has not yet been studied. In the present work, the effect of fly ash on the anaerobic digestion of real winery wastewaters was studied, by means of specific methanogenic activity assays and with a special focus on its effect on the specific methane production and the microbial communities present. Five fly ash concentration (25, 50, 75, 100, and 150 mg L⁻¹) were supplemented under mesophilic conditions.

中文翻译：

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添加粉煤灰对实际酒厂废水厌氧消化中特定甲烷产量和微生物群落的影响

飞灰是微量元素的重要来源，可作为酶系统的辅助因子并改善厌氧消化过程。然而，尚未研究其对使用实际废水进行厌氧消化的影响。在目前的工作中，通过特定的产甲烷活性测定并特别关注飞灰对特定甲烷产量和存在的微生物群落的影响，研究了粉煤灰对实际酿酒废水厌氧消化的影响。在中温条件下补充五种粉煤灰浓度（25、50、75、100 和 150 mg L ^-1）。