The water comes into our treatment wetland, it's exposed to sunlight and algae and those break down the organic chemicals, remove the nutrients and inactivate the waterborne pathogens.
河水流入我们的人工湿地， 在阳光暴晒和水藻的作用下， 有机化学物被分解， 营养物被消耗，水生病原体被杀死。