| 污泥对土壤过氧化氢酶活性的影响 |
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| 引用本文： | 骆爱兰,金党琴.污泥对土壤过氧化氢酶活性的影响[J].光谱实验室,2011,28(6):3097-3100. |
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| 作者姓名： | 骆爱兰 金党琴 |
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| 作者单位： | 盐城工学院化学与生物工程学院 江苏省盐城市迎宾大道9号224051;扬州工业职业技术学院 江苏省扬州市华扬西路199号225127 |
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| 基金项目： | 江苏省农业科技自主创新资金[cx(09)632] |
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| 摘 要： | 选取自来水厂污泥为实验样品,采用实验室模拟的方法研究了污泥对土壤过氧化氢酶活性及热力学特征参数的影响。结果表明：在不同污泥含量下所有测定期间内过氧化氢酶活性都呈现抑制作用,污泥含量越高,对过氧化氢酶的抑制作用越明显。含污泥的土壤从第1d到第7d,土壤酶活性迅速降低,表现出明显的抑制作用;在第7d,污泥对过氧化氢酶活性的抑制作用达到最大,之后过氧化氢酶的活性缓慢恢复,28d后酶活性趋于平缓。热力学研究表明,过氧化氢酶最适宜温度为307—327K。土壤中含污泥时所需的Ea和ΔH比CK高,且污泥含量越大所需的Ea和ΔH越高,说明酶促反应越来越困难。
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| 关 键 词： | 污泥 重金属 过氧化氢酶 热力学 |
Influence of Sludge on Catalase Activity in Soil |
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| LUO Ai-Lan,JIN Dang-Qin.Influence of Sludge on Catalase Activity in Soil[J].Chinese Journal of Spectroscopy Laboratory,2011,28(6):3097-3100. |
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| Authors: | LUO Ai-Lan JIN Dang-Qin |
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| Institution: | LUO Ai-Lan JIN Dang-Qin(School of Chemical and Biological Engineering,Yancheng Institute of Technology,Yancheng,Jiangsu 224051,P.R.China)(Yangzhou Institute of Industrial Technology,Yangzhou,Jiangsu 225127,P.R.China) |
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| Abstract: | The effects of soil on catalase activity and thermodynamic parameters of catalase activity were investigated by laboratory simulation method with sludge from waterwork as experimental samples.The catalase activities all appeared inhibitory action in the different sludge content in whole determination period,and the inhibitory action of sludge on catalase activities were more obviously with increase of sludge content.Catalase activity rapidly decreased from 1d to 7d,that showed the obvious inhibitory action,... |
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| Keywords: | Sludge Heavy Metal Catalase Thermodynamics |
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