advanced nitrogen removal的用法和样例：
- Compared to the traditional A/O process which can never guarantee denitrification effect,the process which advanced nitrogen removal in pulsed SBR is advised newly.
- Nitrate nitrogen removal from ground water by autotrophic denitrification in a packed bed reactor.
- Nitrification is an important step to affect nitrogen removal in biological treatment processes.
- The influence of C/N ratio on the nitrogen removal was investigated in the suspended carrier biological reactor.