Anaerobic digestion (AD) of sewage sludge (SS) and anaerobic co-digestion (AcoD) of SS and wine distillery wastewater (WDW) was investigated at different hydraulic retention times (HRTs), ranging from 20 to 8 d. The mixture of SS and WDW resulted in a highly improved quality of feedstock: soluble organic matter and organic matter easily accessible for acidification increased substantially (>60%), while non-solubilized organic matter decreased (>160%). AcoD of SS:WDW consequently yields higher values of average organic matter removals (48–66%) compared to AD of SS alone (42–58%), in keeping with the increase in specific methane productivity (SMP) (around 45%). Increasing the organic loading rate (OLR) or decreasing the HRT resulted in an increase in methane production (MP) and a decrease in SMP. Maximum values of MP in AD and AcoD were respectively 0.9 ± 0.2 L CH₄ d⁻¹ at an OLR of 8.2 and 5.4 kg TCOD m⁻³ d, corresponding to an HRT of 8 d. SMP values in AD and AcoD fell within the 200–300 L CH₄ kg VS⁻¹ and 300–400 L CH₄ kg VS⁻¹ range, respectively. This paper presents a low-cost strategy for wine producing countries to increase energy generation at wastewater treatment plants, as well as providing them with an interesting source of income.

在20至8 d的不同水力停留时间（HRTs）下研究了污泥（SS）的厌氧消化（AD），SS和葡萄酒酒厂废水（WDW）的厌氧共消化（AcoD）。SS和WDW的混合物大大提高了原料质量：可溶性有机物和易于酸化的有机物显着增加（> 60％），而未溶解的有机物则减少（> 160％）。因此，与单独的SS的AD（42–58％）相比，SS：WDW的AcoD产生的平均有机物去除值更高（48–66％），同时保持了特定甲烷生产率（SMP）的增加（约45％） 。增加有机负荷率（OLR）或降低HRT会导致甲烷产量（MP）的增加和SMP的减少。在8.2的OLR和5.4千克TCOD m ^-3 d的情况下为₄ d ^-1，对应于8 d的HRT。AD和AcoD中的SMP值分别在200–300 L CH ₄ kg VS ^-1和300–400 L CH ₄ kg VS ^-1范围内。本文为葡萄酒生产国提出了一种低成本战略，以增加废水处理厂的能源产生，并为其提供有趣的收入来源。