contructed wetlands have been implemented as wastewater treatment facilities in many parts of the world, but to date, the technology has been largely ignored in developing countries where effective, low cost wastewater treatment strategies are critically needed. contructed wetlands may be an economical option for secondary treatment of stabilization pond effluent, the most common treatment system in use in economically poor countries. given the tropical location of many developing nation, contructed wetlands may be successfully established with plant species acclimated to the tropical environment and able to be harvested for use in secondary function like fuel production. cost, environmental impact, and management consequences must be carefully evaluated for each community considering the potential application of this treatment technology