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| Development of the On-line Measurement Device of Papermaking Waste Water Zeta Potential |
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| DOI：10.11981/j.issn.1000-6842.2013.01.21 |
| Key Words:papermaking waste water； Zeta potential； streaming potential； flocculants |
| Fund Project:广西科学研究与技术开发计划项目（桂科攻11107021-6-4）。 |
| Author Name | Affiliation | | 张圆圆 | 广西大学电气工程学院，广西南宁，530004 | | 艾矫燕* | 广西大学电气工程学院，广西南宁，530004 |
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| Abstract: |
| By detecting the Zeta potential of papermaking waste water to optimize the amount of the flocculants used can purify the water resources and save the operation cost. The on-line measurement device of papermaking waste water Zeta potential was developed by using streaming potential principle. When the waste water flowed through the tubular porous membrane under certain pressure, the electrical potential difference at both ends could be measured. Then the on-line Zeta potential could be derived based on the classic Hemholtz-Smoluchowski equation. By comparing the data measured by this device with the data from off-line measurement, the correction factor of this laboratory device could be decided. The results indicated that the device could reflect the changes of the Zeta potential in waste water on-line． |
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