对辅酶Q10发酵废水膜浓缩工艺进行了研究，确定最佳浓缩工艺为：首先在发酵废水中添加质量浓度为0．5g／L的聚丙烯酰胺；然后进行孔径为10um的PE微滤；调节pH值为6．5～7．0，再采用200Da纳滤膜连续浓缩，最经济的浓缩倍数为4．可以截留80％以上功能性成分，去除60％以上有害离子，浓缩液可满足后续肥料生产或进一步浓缩干燥的需要．%Grounded upon the research of the membrane concentration process of Co -enzyme Q10 fermentation waste liquid, we have obtained and optimized the concentration process, by adding 0.5 g/L of polyacrylamide in the fermentation waste liquid, then filtering through 10 um PE membrane and adjusting the pH value to 6.5 - 7.0; an ultimate continuous concentration was conducted with 200 Da nano - filtration membrane to find that the optimum concentration factor is 4 so as to obtain over 80% retention of functional components as well as to remove more than 60% of objectionable ions. The obtained concentrate can be used in subsequent production of fertilizer or further concentration and drying.
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