In that apparatus for the biologica

In that apparatus for the biological removal of phosphorus, the volume of sludge can be reduced by solubilizing at least some of the return sludge and subjecting it to biological treatment once again. Furthermore, by removing and recovering the phosphorus which is included in the solubilized sludge obtained by solubilizing the returned sludge as MAP (magnesium ammonium phosphate) by way of the anaerobic tank and the phosphorus-removing column (MAP reaction column), it is possible to remove the phosphorus from the system.
A schematic drawing which shows the apparatus for the biological removal of phosphorus disclosed in the aforementioned Japanese Unexamined Laid Open Patent Application H l l - 5 7 7 7 3 is shown in FIG.6 , and this comprises an anaerobic tank 1, a MAP reaction column 2, a denitrification tank 3, a nitrification tank (aerobic tank) 4, a settling tank 5 and a solubilizing tank 6. The waste water is introduced into the anaerobic tank 1 together with solubilized sludge from the solubilizing tank 6. In the anaerobic tank 1, under anaerobic conditions, the phosphorus in the solubilized sludge is released to the liquid side (this phosphorus is almost all in the form of orthophosphoric acid which is convenient for MAP formation). This anaerobic treatment liquid is introduced into the MAP reaction column 2 and generally has a phosphorus concentration of from 15 to 25 mg/1 and so the MAP formation reaction proceeds smoothly.

結果 (中文) 1:

在这可以减少生物除磷、 污泥生成量仪由溶至少一些返回污泥和再一次遭受生物处理。此外，通过删除和恢复其中包括所得溶返回的污泥作为地图 (磷酸镁铵) 溶解污泥中的磷对厌氧池和磷删除列 (地图反应)，就可以从系统中删除的磷。示意图，显示生物除磷仪透露在上述日本混混噩噩奠定了开放专利应用 H l l-5 7 7 7 3 显示在图 6，这包括厌氧池 1、 地图反应列 2、 3，硝化池 (好氧池) 反硝化罐 4，一个沉淀池 5 和 6 的增溶坦克。废水从溶解罐 6 引入与溶解污泥厌氧池 1。在厌氧池 1，在厌氧条件下溶解污泥中的磷释放到液体的一边 (这磷是几乎所有形式的磷酸是方便图的形成)。这种厌氧处理液体引入地图反应柱 2 和一般有磷浓度范围介于 15 到 25 毫克/1 所以地图生成反应进行得很顺利。

結果 (中文) 3:

在装置的生物除磷，污泥的体积可以通过增溶至少部分回流污泥将它再次减少生物处理。此外，通过拆卸和磷中的增溶溶解污泥回流污泥作为地图得到恢复（磷酸铵镁）通过厌氧池和磷去除柱（图反应柱），它可以从系统中删除
磷。一个示意图，显示了生物除磷披露上述日本混混噩噩的公开专利申请H L L - 5 7 7 7 3图所示的装置，这包括厌氧罐1，地图反应柱2，反硝化池3，硝化池（曝气池）4，一个沉淀池5、溶解槽6。废水进入厌氧罐1一起溶解污泥溶解槽6。1在厌氧池，在厌氧条件下，在溶解污泥磷释放到液相（这是几乎所有的磷以磷酸便于成图的形式）。这种厌氧处理的液体被引入到地图反应柱2，一般有一个从15到25毫克/ 1的磷浓度，因此，地图的形成反应顺利进行。