<P> If the wastewater contains human feces , as is the case for sewage , then it may also contain pathogens of one of the four types : </P>
<P> If the wastewater contains human feces , as is the case for sewage , then it may also contain pathogens of one of the four types : </P>
waste water that contain solid and liquid excreta refers to
waste water that contain solid and liquid excreta refers to
sewage
sewage