| 好氧堆肥中不同吸附料对氨吸附效果及堆肥性质的影响 |
| 摘要点击 1440 全文点击 1438 投稿时间：2004-01-08 修订日期：2004-03-29 |
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| 中文关键词 好氧堆肥 氨 吸附剂 堆肥性质 |
| 英文关键词 aerobic compost ammonia sorbent compost property |
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| 中文摘要 |
| 采用0.18%磷酸氢钾、0.06%磷酸氢钾+15%锯末屑混合物和30%锯末屑3种材料作为氨的吸附剂加入堆肥进行研究.实验结果表明,3种吸附料对氨的挥发都有抑制作用,其中0.18%磷酸氢钾的吸附作用最强,0.06%磷酸氢钾+15%锯末屑混合吸附料的作用次之,30%锯末屑的吸附作用最低.三者TN的损失率分别降低25%、23%和17%.但是,采用0.18%磷酸氢钾会因磷酸氢钾过量对堆肥性质产生负面影响,包括降低堆料中pH值,影响微生物活性,最终影响有机质降解率.相比较而言,采用0.06%磷酸氢钾+15%锯末屑混合吸附料效果很好,对氨吸附量高,促进有机质降解率提高7%.
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| 英文摘要 |
| The three kinds of sorbents of 0.18%KH2PO4, 0.06% KH2PO4+15% sawdust mixture and 30% sawdust are added separately into composting to investigate their adsorption effect on ammonia. The experiment results exhibite that all the sorbents can restrain ammonia volatilizing. But sorption of 0.18%KH2PO4 sorbnet was best of all, one of 0.06% KH2PO4+15% sawdust mixture sorbent was secondly, one of 30%sawdust sorbent was thirdly. The total nitrogen loss ratios were separately reduced 25%, 23% and 17% after adding the three kinds of sorbents into composting. However, excessive KH2PO4 would produce negative influence on compost property, such as pH value being lessened, microorganism activity being reduced, and finally resulting in the reduction of biodegradation ratio of organic matter also. Comparing with it, there were not these problems as 0.06% KH2PO4+15% sawdust mixture being sorbent. The mixture sorbent not only produced finer adsorption effect on ammonia, but also made biodegradation ratio of organic matter to be promoted 7%. |
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