septicum

例句：

1. 1.The sewage treatment plant is responsible for removing septicum from the city's wastewater.
   污水处理厂负责从城市废水中去除污泥。
2. 2. The septic tank is a crucial component of the wastewater treatment system.
   化粪池是废水处理系统的关键组成部分。
3. 3. The septic system needs regular maintenance to prevent the buildup of septicum.
   化粪池需要定期维护，以防止污泥积累。