| 锌对厌氧体系的影响及5种重金属离子抑制作用的比较 |
| 摘要点击 730 全文点击 1102 修订日期：1993-07-29 |
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| 中文关键词 抑制作用 厌氧消化 重金属 |
| 英文关键词 anaerobic system heavy metal zinc |
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| 中文摘要 |
| 研究在混合式厌氧消化器中锌离子对厌氧生物的抑制作用和不同的日加入量对厌氧体系的影响。实验结果表明,日加入锌低于40mg/L,对体系无影响;日加入量为70mg/L和高于109mg/L时,对体系分别造成轻微抑制和严重抑制。同时,以体系中溶解态金属离子的浓度(mol/L)与体系中污泥含量(kgVS/L)的比值为依据,比较了5种金属离子对体系的抑制性强弱,其顺序为:Pb>Cu>Ni>Cr(Ⅵ)>Cr(Ⅲ)>Zn。 |
| 英文摘要 |
| he inhibition of zinc on an anaerobic biological system was studied. The results indicated that no effect was observed when a daily addition of zinc was less than 40mg/L, and a significant or serious inhibition was found when a daily addition of zinc was 70mg/L and over 109mg/L, respectively. In a comparison, the inhibition of five heavy medals to an anaerobic digestion can be ranked in a decreasing order of Ph>Cu>Ni>Cr(Ⅵ)>Cr(Ⅲ)>Zn,in terms of the ratio of the concentration of disssolved ion (mg/L) to the activated sludge (kg VS/L). |
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