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| Study on Oxidative Degradation of p-Hydroxyphenyl Propionic Acid as Model Compound of Lignin in Homogeneous Fenton Processes |
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| DOI：10.11981/j.issn.1000-6842.2014.02.38 |
| Key Words:homogeneous Fenton process； hydroxyl free radical； p-hydroxyphenyl propionic acid； oxidative degradation |
| Fund Project:国家科技支撑计划项目（2011BAC11B05）。 |
| Author Name | Affiliation | | 王 昶1 | 1.天津科技大学海洋科学与工程学院，天津，300457 | | 张宗鹏1 | 1.天津科技大学海洋科学与工程学院，天津，300457 | | 王 芳2 | 2.天津科技大学材料科学与化学工程学院，天津，300457 | | 张思月1 | 1.天津科技大学海洋科学与工程学院，天津，300457 | | 豆宝娟1 | 1.天津科技大学海洋科学与工程学院，天津，300457 |
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| Abstract: |
| This paper took p-hydroxyphenyl propionic acid(HL) as the model compound of lignin to investigate the degradation of HL by homogeneous Fenton reagent. It was showed that the factors of pH value， dosages of H2O2 and Fe2+， initial concentration of HL， reaction time and UV irradiation etc had obvious influence on degradation of HL. The experimental results demonstrated that at original pH=4.0 and room temperature, 79.2% of HL was degradation during 60 minutes period when the dosage of H2O2 was two times of the theoretical quantity and Fe2+/H2O2 molar ratio=1∶100. By using the UV irradiation in Fenton process， the synergistic effect could be obtained and the degradation rate increased obviously. The removal rate of HL and TOC reached 98.3%， 79.6% respectively during 20 minutes at the same conditions. |
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