Treatment of fish processing wastewater in a one- or two-step upflow anaerobic sludge blanket (UASB) reactor.
Treatment of fish processing wastewater in a one- or two-step upflow anaerobic sludge blanket (UASB) reactor.
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在一步或两步上流式厌氧污泥床 (UASB) 反应器中处理鱼类加工废水。
DOI：
10.2166/wst.2002.0332
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
G. Alaerts
中科院分区：
文献类型：
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作者：
A. Palenzuela;G. Zeeman;H. Lubberding;G. Lettinga;G. Alaerts
以模拟沙丁鱼和金枪鱼罐头加工废水为进水，研究了一步法UASB反应器处理不同油脂含量的鱼类加工废水的性能。有机负荷（OLR）为5-8 gCOD·l（-1）·d（-1），水力停留时间（HRT）为11-12小时。在处理含有3-4克·升（-1）总COD（其中5-9%为脂类）的废水时，COD去除率和甲烷转化率分别约为78%和61%。在处理具有较高脂质含量的废水（约.总COD去除率为92%，甲烷转化率为47%。相当一部分的进水总COD去除通过吸附在反应器表面和污泥颗粒。油脂在污泥颗粒上的吸附对UASB的稳定运行构成威胁。因此，第一步UASB反应器在去除悬浮固体（SS）从“高脂”废水的性能也被确定在这项研究中。
The performance of one-step UASB reactors treating fish processing wastewater of different lipid levels was determined using artificially generated influent simulating that of the canning of sardines and tuna. The organic loading rates (OLR) and the hydraulic retention times (HRT) were 5-8 g COD.l(-1).d(-1) and 11-12 hours, respectively. In treating a wastewater that contains 3-4 g.l(-1) total COD of which 5-9% was lipids, the COD removal and conversion to methane were ca.78% and 61%, respectively. In treating a wastewater with a higher lipid content (ca. 47% of the total COD), the total COD removed and converted to methane were 92% and 47%, respectively. A considerable part of the influent total COD was removed via adsorption on reactor surfaces and sludge particles. The adsorption of lipids on sludge particles threatens the stability of the UASB operation. Thus, the performance of a first-step UASB reactor in removing suspended solids (SS) from a "high-lipid" wastewater was also determined in this study.