| 不同来源腐殖酸的光解及过氧化氢对其影响 |
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| 引用本文： | 王春霞,彭安,PH. Schmitt,N. Hertkorn. 不同来源腐殖酸的光解及过氧化氢对其影响[J]. 环境科学学报, 1996, 16(3): 270-275 |
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| 作者姓名： | 王春霞 彭安 PH. Schmitt N. Hertkorn |
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| 作者单位： | 中国科学院生态环境研究中心环境水化学国家重点实验室 |
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| 摘 要： | 为探讨腐殖酸在环境中的行为及光解除去腐殖酸的可能性，利用大于２９０ｎｍ的模拟日光辐照，探讨了大骨节病病区、非病区腐殖酸和泥炭腐殖酸的光解过程和光解机理及过氧化氢对其光解的影响，发现随着光照时间的延长，腐殖酸水体系的总有机碳（ＴＯＣ）含量降低，ｐＨ值下降，过氧化氢可以促进腐殖酸的光解，其光解过程遵循一级动力学规律。计算了不同来源腐殖酸光解的速率及光解半衰期，发现土壤和泥炭腐殖酸比大骨节病病区饮水中腐
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| 关 键 词： | 腐殖酸 光解 饮水 过氧化氢 环境污染 |
| 收稿时间： | 1995-03-09 |
PHOTODEGRADATION OF FULVIC ACIDS OF VARIOUS ORIGINS AND THE EFFECTS OF HYDROGEN PEROXIDE |
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| Wang Chunxi,Peng An,PH. Schmitt and N. Hertkorn. PHOTODEGRADATION OF FULVIC ACIDS OF VARIOUS ORIGINS AND THE EFFECTS OF HYDROGEN PEROXIDE[J]. Acta Scientiae Circumstantiae, 1996, 16(3): 270-275 |
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| Authors: | Wang Chunxi Peng An PH. Schmitt N. Hertkorn |
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| Affiliation: | State Kye Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,State Kye Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,GSF-Forschungszentrum fur Umwelt and Gesundheit GmbH, Institut fur Okologische Chemie, Germany and GSF-Forschungszentrum fur Umwelt and Gesundheit GmbH, Institut fur Okologische Chemie, Germany |
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| Abstract: | To study the evnironmental behavior of fulvic acid (FA) and the possibility of removing FA in potable water, imitate sunlight above 290 nm was used. The process and mechanism of the photodegradation of FAs from Kaschin-Beck disease (KBD) prone areas and non-KBD areas, the influences of hydrogen peroxide (H_2O_2) on the FA degradation were investigated.With the increase of sunshine time, the total organic carbon (TOC) and the PH value of FA solution decreased. H_2O_2 enhance the FA photodegradatio rate significantly. The process of FA photodegradation follow the pseudo-first order dynamic law. Photodegradation rate and half-life of FAs from different origins were calculated. FAs from soil and peat photedegraded faster than FAs from potable water of KBD areas. Photodegradation residues of FAs were analyzed by Fourier-transform infrared spectrometry and high performance capillary electrophoresis. |
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| Keywords: | fulvic acid photodegradation hydrogen peroxide. |
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