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首页> 外文期刊>Biotechnology Progress >Integration of Ozonation and an Anaerobic Sequencing Batch Reactor (AnSBR) for the Treatment of Cherry Stillage
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Integration of Ozonation and an Anaerobic Sequencing Batch Reactor (AnSBR) for the Treatment of Cherry Stillage

机译：臭氧和厌氧测序间歇反应器（AnSBR）的集成，用于处理樱桃酒

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Cherry stillage is a high strength organic wastewater arising from the manufacture of alcoholic products by distillation of fermented cherries.It is made up of biorefractory polyphenols in addition to readily biodegradable organic matter.An anaerobic sequencing batch reactor (AnSBR) was used to treat cherry stillage at influent COD ranging from 5 to 50 g/L.Different cycle times were selected to test biomass organic loading rates (OLR_B),from 0.3 to 1.2 g COD/g VSS centre dot d.COD and TOC efficiency removals higher than 80% were achieved at influent COD up to 28.5 g/L but minimum OLR_B tested.However,as a result of the temporary inhibition of acetogens and methanogens,volatile fatty acids (VFA) noticeably accumulated and methane production came to a transient standstill when operating at influent COD higher than 10 g/L.At these conditions,the AnSBR showed signs of instability and could not operate efficiently at OLR_B higher than 0.3 g COD/g VSS centre dot d.A feasible explanation for this inhibition is the presence of toxic polyphenols in cherry stillage.Thus,an ozonation step prior to the AnSBR was observed to be useful,since more than 75% of polyphenols could be removed by ozone.The integrated process was shown to be a suitable treatment technology as the following advantages compared to the single AnSBR treatment were observed:greater polyphenols and color removals,higher COD and TOC removal rates thus enabling the process to effectively operate at higher OLR,higher degree of biomethanation,and good stability with less risk of acidification.
机译：樱桃酒是一种高强度的有机废水，是由发酵樱桃的蒸馏生产酒精产品而产生的，它由生物难降解的多酚和易生物降解的有机物组成。厌氧测序批处理反应器（AnSBR）用于处理樱桃酒。进水COD范围为5至50 g / L。选择不同的循环时间以测试生物量有机负载率（OLR_B），从0.3至1.2 g COD / g VSS中心点d.COD和TOC效率去除率均高于80％进水COD最高达到28.5 g / L，但已测试了最低的OLR_B。但是，由于暂时抑制了乙酸原和产甲烷菌，挥发性脂肪酸（VFA）明显积累，并且在进水COD下运行时甲烷的产生暂时停止。高于10 g / L。在这些条件下，AnSBR表现出不稳定迹象，并且在OLR_B高于0.3 g COD / g VSS中心点dA时无法有效运行。这种抑制作用是樱桃酒中有毒多酚的存在。因此，据观察，在AnSBR之前进行臭氧化步骤是有用的，因为可以将75％以上的多酚通过臭氧去除。集成工艺被证明是一种合适的处理方法。与单次AnSBR处理相比，该技术具有以下优点：更大的多酚和颜色去除率，更高的COD和TOC去除率，从而使该工艺能够在更高的OLR，更高的生物甲烷化程度和良好的稳定性下有效运行，而酸化风险更低。

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