摘要
当陶瓷超滤膜澄清食醋时,先采用经济简便的石英砂过滤方法预处理食醋。滤后的食醋不仅感观、理化和卫生指标均符合国家标准,放置18个月以上无返浑现象,且相比只经陶瓷膜过滤时的膜通量衰减变缓,平均膜通量增加,膜管使用寿命增加0.5年左右,陶瓷膜澄清食醋的成本减少了约3.71元/t。实验证明了陶瓷膜过滤食醋时前置石英砂预处理工序具有重要的经济价值,同时确定出石英砂过滤和反冲洗的最佳工艺条件。
Quartz sand filtration was used for pretreatment before vinegar was ultrafiltered with ceramic membrane. The vineger obtained could meet the na turbidity was observed after eighteen months. Co alone, the decay of membrane flux was slow, the of membrane was prolonged about half of a year, ton. This filtration process was proved to be stabl The optimal operation conditions of quartz sand fi mparmg average tional quality standard for vinegar. No with ceramic membrane ultrafiltration membrane flux was increased, the life
出处
《化工进展》
EI
CAS
CSCD
北大核心
2005年第9期1046-1049,共4页
Chemical Industry and Engineering Progress
关键词
陶瓷膜
食醋
预处理
石英砂
超滤
ceramic membrane
vinegar
pretreatment
quartz sand
ultrafiltration
