作　　者： ; ; ; ; ; ; ;

机构地区： 湖南大学环境科学与工程学院

出　　处： 《环境科学》 2005年第1期190-195,共6页

摘　　要： 采用 0 18 %磷酸氢钾、0 0 6 %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 0 6 %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 2 5 %、2 3%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 0 6 %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% . The three kinds of sorbents of 0.18%KH 2PO 4, 0.06% KH 2PO 4+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%KH 2PO 4 sorbnet was best of all, one of 0.06% KH 2PO 4+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 KH 2PO 4 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% KH 2PO 4+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%.

关 键 词： 好氧堆肥 氨 吸附剂 堆肥性质

领　　域： [环境科学与工程]