有些工厂将生产废水向海中倾泻。
政府应该采取严厉的措施阻止工业废水非法排放。
The government should take extreme measures against illegal industrial waste-water discharge.
世界上80%的废水根本没有得到处理，它们正在流入海洋。
80% of wastewater around the world is not treated at all, and it is running into oceans.
现在芝加哥的废水正在排入芝加哥河，该城市的下一步是清理被污染的河流。
Now Chicago's waste water was draining into the Chicago River, the city's next step was to clean the polluted river.
在贫穷、干旱的地区，未经处理的废水是让农民维持生计的唯一可用灌溉资源。
In poor, dry regions, untreated wastewater is the only viable irrigation source to keep farmers in business.
从沉降池流出的废水被加入消毒剂以杀死一切有害生物。
Effluent from the sedimentation tank is dosed with disinfectant to kill any harmful organisms.
通常，废水来自家庭、工厂、医院等。
Usually, wastewater comes from homes, factories, hospitals and so on.
一些工厂阻止废水流入河流。
其中，废水问题尤为严重。
为什么我们必须处理废水？
工厂废水在回归自然之前必须进行净化。
Factory wastewater has to be cleaned before it goes back to nature.
暴风雨的雨水流经街道时也会变成废水。
The rain also changes into wastewater when it is running down the street during a storm.
家庭废水可以重复使用。
废水处理厂截留了其中的83%到99%。
Wastewater treatment plants hold back 83 to 99 percent of them.
废水会更少。
本实验采用光电催化法处理大量马扎林废水。
This experiment applied photo-electric-catalyzed to treat substantive mazarine wastewater.
目的：利用废水回收磷、氮，生产化肥。
Task: Recover phosphorus and nitrogen from wastewater to make fertilizer.
废水进入太阳炉净化然后再回到农场被利用。
Waste water is purified in a solar furnace and then piped back to the farm.
工业废水中的重金属也难辞其咎。
在暴雨来临时这些废水又会溢流到河中。
酿造废水中发现的微生物可令回用水处理更洁净高效。
Bacteria discovered in brewery wastewater may make recycling water more powerful and efficient.
地球上大多数大城市，污水和废水都在水处理厂处理。
In most large cities around the globe, sewage and wastewater gets processed at a treatment plant.
这些活动包括采煤、采石、石油钻探和向地下注入废水。
These include coal mining, quarrying, oil drilling, and the injection of wastewater into the ground.
废水中的营养物质可喂养鱼类，因此没必要加额外食物。
Nutrients in the wastewater support the fish, so no external food is added.
洗澡水，洗衣水和其他清洗废水经湿地被循环。
Greywater, that is water that comes from the shower, clothes washer or dishwasher, is recycled by the wetlands.
洗澡水，洗衣水和其他清洗废水经湿地被循环。
Greywater, that is water that comes from the shower, clothes washer or dishwasher, is recycled by the wetlands.
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