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碟管式反渗透浓缩杨梅原汁
Concentration of bayberry juice by DTRO
【摘要】 应用碟管式反渗透(DTRO)技术对杨梅汁进行浓缩研究.实验结果表明,经过三倍浓缩(以体积计),杨梅汁总酸含量(质量分数)由10.23%增大到30.05%;波美度由4.3°Be增大到11.7°Be;可溶性固形物含量由7.35%增大到19.5%.另外,采用2%C531+NaOH(pH 11~11.5)对膜进行碱洗,膜通量可以得到有效恢复.验证了DTRO技术可用于杨梅汁浓缩工艺.并确定了合理的清洗方案.
【Abstract】 This paper applied dish tubular reverse osmosis(DTRO)technology to concentrate bayberry juice.The experiment results showed that after three times concentration(by volume),the bayberry juice total acid increased from 10.23%to 30.05%,baume degree increased from 4.3°Be to 11.7°Be,and the content of soluble soild increased from 7.35%to 19.5%.Additionally,using a solution of 2%C531and NaOH(pH 11 ~ 11.5)to causticly clean,the membrane flux can be recovered effectively.The study verified that the application of DTRO technology in bayberry juice pre-concentration was feasible,and determined a reasonable cleaning solution.
- 【文献出处】 膜科学与技术 ,Membrane Science and Technology , 编辑部邮箱 ,2014年02期
- 【分类号】TQ028.8;TS275.5
- 【被引频次】3
- 【下载频次】196