| 聚天冬氨酸的合成及对含镉废水的去除研究 |
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| 引用本文： | 赖坤容,马政生. 聚天冬氨酸的合成及对含镉废水的去除研究[J]. 水处理技术, 2010, 36(2) |
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| 作者姓名： | 赖坤容 马政生 |
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| 作者单位： | 1. 长安大学环境科学与工程学院,陕西西安,710054
2. 西北大学化工学院,陕西西安,710069 |
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| 基金项目： | 国家高技术研究发展计划(863)项目(2002AA2ZAl31):两安市水务局研究项目 |
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| 摘 要： | 以L-天冬氨酸为原料合成了聚天冬氨酸,红外光谱性质表征确认了其结构;并进行了含镉废水的除镉正交试验,确定了最佳条件.当反应温度60℃、恒温时间30min、水样pH=6时,最大吸附容量为1.97 g·g~(-1),去除率79.38%.聚天冬氨酸可以作为含镉废水的除镉材料.
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| 关 键 词： | 聚天冬氨酸 合成 镉(Ⅱ) 去除率 cadmium(Ⅱ) |
SYNTHESES OF POLYASPARTIC ACID AND APPLICATION IN REMOVING CADMIUM IN WASTEWATER |
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| Lai Kunrong,Ma hengsheng. SYNTHESES OF POLYASPARTIC ACID AND APPLICATION IN REMOVING CADMIUM IN WASTEWATER[J]. Technology of Water Treatment, 2010, 36(2) |
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| Authors: | Lai Kunrong Ma hengsheng |
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| Abstract: | The PASP (polyaspartic acid) is synthesized by L-aspartic acid,and is charactered by IR. The optimal conditions with polyaspartic acid remove cadmium (Ⅱ) in waste water are definited: reaction temperature 60 ℃ time 30 min, the water's pH 6, the biggest chelate ability is 1.97 g·g~(-1) and the removing rate is 79.38％. Polyaspartic acid was of no poison, harmless and biological degradation , it i8 a good material in removing cadmium(Ⅱ). |
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| Keywords: | polyaspartic acid syntheses remove |
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