chemical denitrification

例句：

1. 1. The process of chemical denitrification is crucial for the treatment of wastewater.
   化学脱氮过程对于废水处理至关重要。
2. 2. In chemical denitrification, organic matter is decomposed and converted into inorganic compounds.
   在化学脱氮过程中，有机物被分解并转化为无机化合物。
3. 3. Chemical denitrification is a method used to remove nitrogen from wastewater before it is discharged into the environment.
   化学脱氮是一种用于从废水中去除氮的方法，然后再将其排放到环境中。