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OALib Journal期刊
ISSN: 2333-9721
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蚯蚓在处理活性污泥过程中的生长繁殖
DOI: 10.3724/SP.J.1145.2013.00147, PP. 147-151
Keywords: 赤子爱胜蚓,活性污泥,生长,繁殖
Abstract:
利用蚯蚓处理污泥、畜禽粪便、植物残体、工业废弃物等已经成为当前有机废弃物资源化利用的有效实例，而处理过程中蚯蚓的生长繁殖变化对有效利用蚯蚓具有重要意义.研究了污水厂活性污泥及污泥与牛粪不同比例条件对蚯蚓平均增重、生长率、日增重倍数、产茧量和蚓茧孵化率等生长繁殖指标的影响.污泥和牛粪分别以1:1、2:1、3:1、4:1、5:1和1:0的比例混合喂养赤子爱胜蚓（eiseniafoetida），每个配比4个重复，共计24个样品（盆）.每盆基质干物质量为500g.实验期为60d.结果表明：在污泥所占比例较大的处理中蚯蚓生长较好，增重较多；污泥所占比例较小的处理则较利于蚯蚓繁殖；其中4:1配比条件下蚯蚓的体重[(17.55±0.30)g]是处理中的最大值，而且平均增重[(354.70±35.30)mg/条]最多，生长率也较高，因此最适合蚯蚓生长.duncan多重比较结果表明1:1与其他配比条件下蚯蚓总产茧量之间存在显著差异，蚯蚓周产茧量、总产茧量[(538.5±28.3)个]最多，蚓茧孵化率（89.2%）较高，最适合蚯蚓繁殖.
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