They also help clean our own water at wastewater treatment plants, where they are used to eat biodegradable materials.

它们也可以在污水处理厂清洁水源，在那里，它们可以食用可生物降解的材料。

After realizing the damage that was causing, local authorities have since commissioned a dozen wastewater treatment plants to help keep Dianchi clean.

在了解废水造成的危害之后，当地政府已经委托了十几家污水处理厂来帮助滇池保持清洁。

Wastewater treatment plants hold back 83 to 99 percent of them.

废水处理厂截留了其中 83% 至 99% 的废水。

So even if we aren't planning to drink this concoction, we still need to clean it, which is why sewer systems typically run to wastewater treatment plants.

所以即使我们不打算饮用这种混合物，我们仍需要清洁它，这就是为什么下水道系统通常会流向污水处理厂。

Centralized wastewater treatment plants are better, but most of them only partially remove nitrogen.

集中式污水处理厂较好，但大多数只能部分去除氮。

We have a police department, a school, a health center.We have a wastewater treatment plant.

我们有一个警察局、一所学校、一个健康中心。我们有一个污水处理厂。

There's examples of infrastructure like wastewater treatment plants being inundated with water, cryptosporidium outbreaks on public health.

有一些基础设施的例子，例如污水处理厂被水淹没，隐孢子虫爆发影响公共卫生。

It's still home to a wastewater treatment plant, nearby freeways, and lots of other heavy industrial usage.

它仍然是污水处理厂、附近的高速公路和许多其他重工业用途的所在地。

The location of our water treatment, our wastewater treatment plants is often down by the coast and as seas rise, those pipes back up.

我们的水处理地点，我们的废水处理厂通常位于海岸下方，随着海平面上升，这些管道会倒流。

They can end up in the sewage sludge from wastewater treatment plants, which is used to fertilize agricultural lands, or even in treated water released into waterways.

它们最终可能出现在废水处理厂的污水污泥中，这些污泥用于给农田施肥，甚至可能出现在排放到水道的处理水中。

So even if we aren't planning to drink this concoction, we still need to clean it; which is why sewer systems typically run to wastewater treatment plants.

因此，即使我们不打算喝这种混合物， 我们仍然需要对其进行清洁；这就是为什么下水道系统通常通往废水处理厂的原因。

By the turn of the 19th century, many cities had developed modern sewage infrastructure and wastewater treatment plants, and today, toilets have a wide range of features, from the luxurious to the sustainable.

到 19 世纪之交，许多城市都发展了现代化的污水基础设施和污水处理厂， 如今，厕所具有从豪华到可持续的广泛特征。