Results showed that higher efficiency of COD removal would not be got in electrode-biology reactor than that of the ordinary biology reactor at the experimental conditions, but phosphorus removal would be got especially in improving the degree of release phosphorus during the period of anaerobic. 结果表明:在试验条件下,外加电场生物反应器比普通生物反应器具有更高的除磷效率,并能在厌氧阶段促进磷的释放,而COD去除率提高并不明显。
The ordinary fertilizer which contains nitrogen, phosphorus or potassium is granulated by roll compacter. 应用对辊式造粒机,将氮磷钾基础肥料分别制成粒径一致的粒状肥料,然后按配方要求进行计量和混匀,制成掺合复肥。
In the treatments of ordinary urea and common compound fertilizer, nitrogen and phosphorus loss were mainly in the form of granules. In the prophase rainfall, the losses were largest, and the losses were decreased rapidly in the late rainfall. 普通尿素与普通复合肥中的氮、磷主要以颗粒态形式流失,在前期降雨中流失量最大,后期降雨中流失量迅速减少。