Goodwin J A, Finlayson J M, Low E W
Department of Mechanical and Chemical Engineering, Heriot-Watt University, Riccarton, Edinburgh, UK.
Bioresour Technol. 2001 Jun;78(2):155-60. doi: 10.1016/s0960-8524(01)00008-6.
Pot ale from a pilot-scale malt whisky distillery was treated using a mesophilic upflow anaerobic sludge blanket (UASB) digester. Stable operation was observed at organic loading rates (OLRs) of 5.46 kg COD/m3 day or less when the pot ale was diluted with tap water. Digester failure occurred when undiluted pot ale was used, even though OLR was less than 5 kg COD/m3 day. Overall performance was worse than that observed previously when UASB digesters were used to treat pot ale from a different source supplemented with trace elements. A substantial proportion of effluent chemical oxygen demand (COD) was present as volatile fatty acids (VFA), particularly during periods of reactor stress, indicating that overall performance was limited by the rate of VFA conversion. Wastewater alkalinity rose during digestion. The sludge which developed in the reactor was flocculent but did not form compact granules.
使用中温上流式厌氧污泥床（UASB）消化器处理来自中试规模麦芽威士忌酒厂的酒糟。当用自来水稀释酒糟时，在有机负荷率（OLR）为5.46 kg COD/m³·天或更低的情况下观察到稳定运行。即使OLR低于5 kg COD/m³·天，使用未稀释的酒糟时消化器仍会出现故障。总体性能比之前使用UASB消化器处理来自不同来源并添加微量元素的酒糟时观察到的情况更差。相当一部分出水化学需氧量（COD）以挥发性脂肪酸（VFA）的形式存在，特别是在反应器压力较大的时期，这表明总体性能受VFA转化速率的限制。消化过程中废水碱度升高。反应器中形成的污泥呈絮凝状，但未形成紧密的颗粒。
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