Sustainability 2012, 4(12), 3362-3376; doi:10.3390/su4123362
Article

Sustainable Community Sanitation for a Rural Hospital in Haiti

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Received: 23 October 2012; in revised form: 6 December 2012 / Accepted: 12 December 2012 / Published: 18 December 2012
(This article belongs to the Special Issue Sustainable Waste Management)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: A fully sustainable sanitation system was developed for a rural hospital in Haiti. The system operates by converting human waste into biogas and fertilizer without using external energy. It is a hybrid anaerobic/aerobic system that maximizes methane production while producing quality compost. The system first separates liquid and solid human waste at the source to control carbon to nitrogen ratio and moisture content to facilitate enhanced biodegradation. It will then degrade human waste through anaerobic digestion and capture the methane gas for on-site use as a heating fuel. For anaerobic decomposition and methane harvesting a bioreactor with two-stage batch process was designed. Finally, partially degraded human waste is extracted from the bioreactor with two-stage batch process and applied to land farming type aerobic composter to produce fertilizer. The proposed system is optimized in design by considering local conditions such as waste composition, waste generation, reaction temperature, residence time, construction materials, and current practice. It is above ground with low maintenance requirements.
Keywords: bio-digester; human waste; sustainable; developing countries; compact; two-chamber; low water content; above ground
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MDPI and ACS Style

Meegoda, J.N.; Hsieh, H.-N.; Rodriguez, P.; Jawidzik, J. Sustainable Community Sanitation for a Rural Hospital in Haiti. Sustainability 2012, 4, 3362-3376.

AMA Style

Meegoda JN, Hsieh H-N, Rodriguez P, Jawidzik J. Sustainable Community Sanitation for a Rural Hospital in Haiti. Sustainability. 2012; 4(12):3362-3376.

Chicago/Turabian Style

Meegoda, Jay N.; Hsieh, Hsin-Neng; Rodriguez, Paul; Jawidzik, Jason. 2012. "Sustainable Community Sanitation for a Rural Hospital in Haiti." Sustainability 4, no. 12: 3362-3376.


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