Question

From where sullage water origin

Answer 1

 Greywater is all wastewater that is generated in household or office building sources without fecal contamination. Therefore, by definition, greywater does not include the discharge of toilets or highly fecally contaminated wastewater, which is designated sewage or blackwater and contains human waste.

Answer 2

Sewage include human waste as well as water from various sources.Sullage is the wastewater that arises from domestic activities such as washing in bathroom and kitchens,including water from food preservation and dishwashing;it does not contain human excreta.