WASTE WATER TREATMENT TECHNOLOGIES: DOMESTIC WASTE WATER TREATMENT SYSTEM COMPOSTING TOILETS AND WETLANDS

Saima Hanif and Shahid Raza*

ABSTRACT

Wastewater is dirty, used water that goes down the drains & toilets of homes, schools, business & factories. Wastewater is collected in networks of pipes called “Sewers” that carry it to wastewater treatment works. At these works, it is cleaned before it put into the river. Firstly, the wastes in wastewater is dangerous & can threaten the health of humans & environment. These dangerous wastes must be taken out of the water & treated and disposed off safely. Secondly, Water is a precious resource and must be returned to the natural water cycle. Conventional „waste‟ treatment systems, both sewer and septic systems pollute by design. That is, they are not intended to capture nutrients from human excreta in a form that would allow their healthy re-use. The current study is a new method not only to conserve water but also clean water supply for humans. In this research, Domestic water is processed through compost toilet system to treat human excreta by composting or aerobic decomposition producing compost and wastewater which further processed by natural or constructed wetlands which act as bio-filters to remove sediments & pollutants such as heavy metals. Thus water can be recycled.

Keywords: Wastewater is dirty, wastes in wastewater is Thus water can be recycled.