摘要
针对传统污水处理方法中蛋白质去除率较低而COD负荷增加问题,采用膜处理装置进行试验研究。在膜分离技术的基础上,以调节豆浆废水、淀粉废水等电位点作为预处理,采用中空纤维膜装置进行超过滤,并对温度影响作定性分析。结果表明,膜分离技术可以大大提高这两种废水中COD的去除率,分别为76.3%和82.9%;去除率与膜组件的孔径有密切关系;另外,适当的温度可以提高污水处理的效率,试验得出20℃时效率最佳;淀粉等废水处理后的蛋白质还可以作为肥料被充分利用。
In view of the low protein removal rote and negative COD removal rote in traditional sewage treatment processes, membrane technology was introduced in experiments for the treatment of wastewater containing protein. Soybean milk and faecula wastewater were pretreated by regulating their equipotential points, and ultrafiltrated with hollow fiber membrane equipment. The influence of temperature is analyzed qualitatively. The membrane separation technology greatly improved the COD removal rates, which were 76.3 % and 82.9 %, respectively, for Soybean milk and faecula wastewater, and the removal rates were significantly affected by the aperture of the membrane. Proper temperature was important for treatment efficiency and 20℃ was the best one. Protein from faecula wastewater treatment can be utilized as fertilizer.
出处
《水资源保护》
CAS
北大核心
2008年第5期91-93,98,共4页
Water Resources Protection
关键词
膜分离技术
中空纤维膜
超滤
membrane separation technology
hollow fiber membrane
ultrafiltmfion
