| Fenton试剂氧化降解紫丁香醇的研究 |
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| 引用本文： | 王昶,张丽萍,李伶,贾青竹,李桂菊. Fenton试剂氧化降解紫丁香醇的研究[J]. 环境工程, 2011, 29(1): 62-66. DOI: 10.13205/j.hjgc.201101018 |
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| 作者姓名： | 王昶 张丽萍 李伶 贾青竹 李桂菊 |
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| 作者单位： | 1. 天津科技大学,海洋科学与工程学院,天津,300457
2. 天津科技大学,材料科学与化学工程学院,天津,300457 |
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| 基金项目： | 天津市农委重大资助项目(0604140) |
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| 摘 要： | 在自制的圆柱型双层玻璃反应器中,以木素类模型物紫丁香醇(SL)为目标化合物,考察Fenton试剂对紫丁香醇的降解效果,研究溶液的pH值、H2O2的用量、Fe2+的用量、紫丁香醇溶液初始浓度、反应时间、紫外光照射等因素对紫丁香醇降解的影响。实验结果表明:在室温条件下,当体系pH值为3.0时,加入两倍理论用量的H2O2,Fe2+与H2 O2的物质的量之比为1︰50,反应60 min后,50 mg/L的紫丁香醇的去除率可达87.5%;当体系中引入紫外光后,Fenton试剂的氧化性明显增加,反应速度显著加快,30 min后紫丁香醇可完全矿化。
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| 关 键 词： | 均相Fenton ·OH 紫丁香醇 |
STUDY ON OXIDATIVE DEGRADATION OF SYRINGYL LIGNIN WITH FENTON PROCESS |
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| Wang Chang,Zhang Liping,Li Ling,Jia Qingzhu,Li Guiju. STUDY ON OXIDATIVE DEGRADATION OF SYRINGYL LIGNIN WITH FENTON PROCESS[J]. Environmental Engineering, 2011, 29(1): 62-66. DOI: 10.13205/j.hjgc.201101018 |
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| Authors: | Wang Chang Zhang Liping Li Ling Jia Qingzhu Li Guiju |
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| Affiliation: | Wang Chang1 Zhang Liping1 Li Ling2 Jia Qingzhu1 Li Guiju1(1.College of Marine Science and Engineering,Tianjin University of Science and Technology,Tianjin 300457,China,2.College of Material Science and Chemical Engineering,Tianjin University of Science & Technology,China) |
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| Abstract: | The characters of the degradation syringyl lignin obtained from the papermaking waste water were investigated in a self-designed cylindrical reactor.It was showed that pH value,the dosage of H2 O2,the concentration of Fe2 +,syringyl lignin initial concentration,reaction time and UV irradiation etc factors had influence on degradation of syringe lignin.The experimental results showed that at pH = 3 and T =(20 ± 1) ℃ the high level 87.5% of syringyl lignin degradation were achieved during 60 min when the dosage of H2 O2 was two times of the theoretical quantity and Fe2 +/H2 O2 molar ratio = 1∶ 50.The degradation of syringyl lignin was improved greatly when employing UV irradiation to Fenton process.By using this process,syringyl lignin was decomposed completely during only 30 min. |
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| Keywords: | homogeneous Fenton hydrogen peroxide syringyl lignin |
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