Even after being processed at the city's water treatment plants the water takes another journey through leaky pipes that ensure it is no longer drinkable once it reaches people's homes.

VOA: standard.2010.08.04

Separating our water supply from sewage and learning how to do wastewater treatment was a really important part of reducing infectious diseases.

把净水和污水分开,以及学会污水处理的方法,是减少感染性疾病传播方法中的重要部分

耶鲁公开课 - 生物医学工程探索课程节选

The program asks users - developers or state regulators, for example - to enter a description of the local land types, such as parking lots,rooftops,roads, grasses or woods, along with any water treatment areas.

VOA: standard.2010.08.04

looked at things like where should they locate waste water treatment facilities because of the impacts of climate change, what risks are likely to occur to their subway system because it's underground and already requires enormous pumping of water during certain large rainfall events."

VOA: standard.2010.06.14

When emergencies take place attention is often focused on immediate relief: making sure water,food, and medical treatment are available.

VOA: standard.2009.10.14

The Bush administration strenuously defended so-called "enhanced interrogation techniques" like sleep deprivation to obtain information from detainees, and admitted to harsher treatment, like the simulated drowning technique called water boarding, that was used in the immediate aftermath of the September 11 terror attacks.

VOA: standard.2009.08.24