DECENTRALISED SEWAGE TREATMENT USING ANAEROBIC BAFFLED HORIZONTAL WETLAND SYSTEM

Typically, domestic sewage has been collected and treated at a centralised treatment
plant. Limitations and problem are progressively arising for centralised approaches.
The construction and operation of centralised wastewater collection and treatment
systems are expensive, particularly in areas where the population densities are low
and the households are dispersed. Lacking of funding and technical expertise makes
it hard for developing countries to establish a centralised system. On the other hand,
growing attention is given to the decentralised system for wastewater treatment
which implements a combination of onsite and/or cluster systems. In addition,
decentralised wastewater treatment system do not discharge treated effluent to water
bodies and have the potential to supply a sustainable source of decent non-potable
water for the usage of city and rural communities, such as irrigation for non-edible
plants.