| Response surface methodology optimize nanofiltration membrane advanced treatment of vitamin C wastewater |
| Authors: ZHANG Tingting1,XU Ke1*,REN Hongqiang1,DING Lili1, GENG Jinju1,ZHAO Fei 1,TAO Yingyang2 |
| Units: 1.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China; 2.the Anhui Wanwei Corporation, Caohu 238000, China |
| KeyWords: nanofiltration membrane; vitamin C wastewater; multiple response optimization |
| ClassificationCode:X5 |
| year,volume(issue):pagination: 2014, 34(5):89-95 |
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Abstract: |
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Vitamin C wastewater with high concentrations of organic matter and salinity emissions a great quantity, so it is of great significance to reuse it. The average concentration of COD, TOC and conductivity is 160mg/L, 18.21mg/L and 18.62ms/cm. The removal of COD, TOC and desalination is 93.75%, 95.67% and 38.01%. The quality of the permeate water has reached the reclaimed water quality. By means of the Box-Behnken response surface methodology experiment, influence significance and interactions of three factors (operating pressure, P; feed temperature, T; feed flow rate, Q) were study, and regression models were established to control membrane fouling in vitamin C wastewater reclamation. The optimum conditions of NFW membrane were pressure of 966kPa, T of 24℃ and feed flow rate of 456L/h. The experiment results show that the optimum fits the real results. |
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Funds: |
| 国家自然科学基金青年基金项目(No.51108230);国家863计划课题(No.2009AA063901). |
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AuthorIntro: |
| 张婷婷(1989-),女,南京大学环境学院硕士研究生,主要从事废水膜处理技术膜污染研究. E-mail:zttssmile@163.com. |
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Reference: |
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[1] 戴伟国. 中国维生素C生产现状、动态及对策[J]. 上海医药, 2003, 24(10): 460-461. |
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