https://scholars.lib.ntu.edu.tw/handle/123456789/413354
標題: | Ultrafiltration and Reverse Osmosis of the Waste Water from Sweet Potato Starch Process | 作者: | Chiang B.H. PAN W.D. |
公開日期: | 1986 | 卷: | 51 | 期: | 4 | 起(迄)頁: | 971-974 | 來源出版物: | Journal of Food Science | 摘要: | The primary waste water discharged from pilot plant scale sweet potato starch manufacturing was processed by ultrafiltration (UF). The UF permeate was then concentrated by reverse osmosis (RO). Growth of microorganisms in waste water would reduce the flux of UF. When the feed velocity of UF was higher than 2.5 m/sec, its positive effect on permeation rate was no longer existent. Relationships between transmembrane pressure and permeate flux were linear at all tested concentrations. UF filtered protein and calcium reduced two?thirds of the biochemical oxygen demand (BOD) and half the chemical oxygen demand (COD) at weight concentration ratio (WCR) of 5. With RO the rest of the components were recovered and BOD and COD were reduced more than 99% and 98%, respectively, at a WCR of 6. Copyright ? 1986, Wiley Blackwell. All rights reserved |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/413354 | ISSN: | 00221147 | DOI: | 10.1111/j.1365-2621.1986.tb11211.x |
顯示於: | 食品科技研究所 |
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