摘要
研究臭氧对马铃薯淀粉加工废水降污及有机质回收的工艺技术。在溶液pH10、臭氧浓度5.00g/h、温度20℃、通气120min条件下,试验废水的COD、总磷、氨氮及悬浮物去除率分别65.89%、62.07%、62.71%和84.12%,出水pH为7.05,无恶臭味,与原废水的总色差(△E)在通气30min时便达63.91。在臭氧降污过程中,通过泡沫富集可回收40.65%的干物质,其中蛋白质占66.21%。结果表明:臭氧能有效去除马铃薯淀粉加工废水污染物,并具有很好的脱色效果,同时能回收废水中的的机质。
The present study focuses on reducing the wastewater pollution and recycling the organic matters from the potato starch.The optimal conditions of the ozone used for disposing wastewater were 5.00g/h ozone at 20℃for 120min of ventilating time with initial pH 8.0.The disposing ratio of chemical oxygen demand（COD）,total phosphorus,ammonia nitrogen,suspended solid from original wastewater was 65.89%,62.07%,62.71%and 84.12%,respectively.The final pH of water was 7.05after ozone treatment and total color difference（E）between original wastewater and treated water is 63.91.40.65%dry matter was recovered from wastewater after ozone treatment,with protein accounting for 66.21%in the dry matter.The results showed that the ozone could remove efficiently contaminants in the wastewater with decolorizing effect.Meanwhile organic matter was recovered from wastewater.
出处
《食品与机械》
CSCD
北大核心
2010年第5期26-29,61,共5页
Food and Machinery
基金
贵州省科技重大专项-(子项目三)(编号:黔科合重大专项[2008]6009号)
六盘水市科技局项目(编号:52020-07-008)
关键词
马铃薯淀粉加工废水
臭氧
水质
干物质回收
potato starch processing wastewater
ozone
water quality
dry matter recovery
