Animal Environment Division, Department of Animal Biotechnology and Environment, National Institute of Animal Science (NIAS), RDA, Wanju-Gun, Jeonju, South Korea.
Animal Environment Division, Department of Animal Biotechnology and Environment, National Institute of Animal Science (NIAS), RDA, Wanju-Gun, Jeonju, South Korea.
Bioresour Technol. 2017 Dec;245(Pt A):365-371. doi: 10.1016/j.biortech.2017.08.083. Epub 2017 Aug 18.
The study investigated the effect of different initial moisture (IM) content (55, 60, 65, and 70%) of composting mixtures (swine manure and sawdust) for the production of nutrient rich manure, and the recovery of ammonia through a condensation process using a vertical cylindrical in-vessel composter for 56days. The composting resulted in a significant reduction in C:N ratio and electrical conductivity (EC), with a slight increase in pH in all products. The NH were emitted notably, and at the same time the NO-N concentration gradually increased with the reduction of NH-N in the composting mixtures. The overall results confirmed, the 65% IM showed the maximum nutritional yield, maturity and non-phytotoxic effects (Lycopersicon esculentum L.), with the results of ideal compost product in the following order of IM: 65%>60%>70%>55%. Finally, the recovered condensed ammonia contained considerable ammonium nitrogen concentrations and could be used as fertilizer.
本研究探讨了不同初始水分（IM）含量（55%、60%、65%和 70%）对猪粪和木屑堆肥混合物生产营养丰富肥料的影响，以及通过使用垂直圆柱形容器内堆肥器在 56 天内通过冷凝过程回收氨的效果。堆肥导致 C:N 比和电导率（EC）显著降低，所有产品的 pH 值略有升高。NH 显著释放，同时，随着堆肥混合物中 NH-N 的减少，NO-N 浓度逐渐增加。总体结果证实，65%的 IM 显示出最大的营养产量、成熟度和非植物毒性效应（Lycopersicon esculentum L.），以下是 IM 的理想堆肥产品顺序：65%>60%>70%>55%。最后，回收的冷凝氨含有相当高的铵态氮浓度，可作为肥料使用。
