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Management of Contaminated Drinking Water Source in Rural Communities
In rural communities, the issue of water contamination is causing increasing attention by authorities. This is particularly significant in many developing countries, where cost-effective rural wastewater treatment technologies are desired. In this research, a microorganism-enhanced multiple soil layer (MEMSL) system is developed to form an effective land-based rural wastewater treatment system. The developed system contains subsystems of septic tank, MEMSL, subsurface and surface wetlands, aerated lagoon, and wind turbine. The system relies on natural landscape for facilitate natural flow of the wastewater to be treated, such that no power supply is needed. MEMSL contains enhanced microorganism that can effectively decompose the contaminants. The wind turbine is to improve the aeration of multiple subsystems or processes within the system. The method is applied to a case where rural wastewater is treated through the system before being discharged to the surrounding natural water body. The results indicate that satisfactory effluent quality has been obtained through the system. With the provision of high treatment efficiency and low maintenance cost, this technology can be extended to other rural communities.
Keywords: rural community, wastewater, contamination, land-based, degradation, microorganism, river, lake
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