All these drawbacks, however, could be effectively overcome in a semi batch reaction system into which propionic anhydride was continuously fed.
然而，在连续流加丙酸酐的半批式反应系统中，所有这些缺点均可有效地克服。
2
The step-fed sequencing batch reactor (SFSBR) is a new type of the enhanced nitrogen removal system, characterized by a multiple anoxic feeding for supplying the organic carbon source to denitrifiers.