wastewater of steel industry

例句：

1. 1. The factory discharges wastewaterinto the river every day.
   这家工厂每天将废水排放到河里。
2. 2. The cityhas implemented strict regulations to control the amountof wastewater being released into the environment.
   这个城市实施了严格的规定来控制废水的排放量。
3. 3. The treatment plant isdesigned to remove harmful chemicals from the wastewater before it reaches the ocean.
   处理厂设计用来从废水中去除有害化学物质，然后再将其排入海洋。