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Position: Home > Articles > Study on Extracting Humic Acid from Peat by Two-step Method with Electrolytic Water Humic Acid 2008 (5) 24-28

利用电解水两步法从泥炭中提取腐植酸的研究

作  者：
李亮;王德汉;谢锡龙
单  位：
华南农业大学资源环境学院
关键词：
腐植酸;提取率;酸性电解水;碱性电解水
摘  要：
目前,国内外一般采用烧碱提取腐植酸,该法存在诸多缺点。电解水是具有杀菌除臭、活化氧化作用,经济环保、容易制备的特殊功能性用水。本研究首次采用酸性电解水预处理、碱性电解水提取的两步法,设计多组实验,分析两步法对泥炭的提取效果和规律。确定了电解水NaCl初始浓度5%,酸炭比10∶1,碱炭比15∶1,反应温度40℃,反应时间3h的最佳工艺条件。分析了该方法的实用价值,为工业化应用提供了参考。
译  名：
Study on Extracting Humic Acid from Peat by Two-step Method with Electrolytic Water
作  者：
Li Liang, Wang Dehan, Xie Xilong (College of Resource and Environment, South China Agricultural University, Guangzhou, 510642)
关键词：
humic acid; extraction rate; acidic electrolytic water; alkaline electrolytic water
摘  要：
The method extracting humic acid with NaOH is used widely at home and abroad, while it has some short-comings. Electrolytic water not only is an especial and functional water with sterilization, deodorization, activation and oxidation, but also is economical and environmental-friendly, and easy to be produced. In this paper, multi-experiments were designed to analyze the extracting effect and rule from peat using two-step method, i.e., pretreated with acidic electrolytic water fi rstly, and then extracted with alkaline electrolytic water. Some optimal parameters were defi ned finally, such as the initial concentration of NaCl in electrolytic water was 5%, the ratios of acid-peat and alkaline-peat were 10∶1 and 15∶1, and the reaction temperature and reaction time were 40 ℃and 3 h, respectively. This paper also analyzed the practical value of this method, and would provide references for industrial application.

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