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Joseph Rouse   Professor  Senior Scientist or Principal Investigator 
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Joseph Rouse published an article in October 2014.
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CONFERENCE-ARTICLE 7 Reads 0 Citations Development of Environmentally Sustainable Methods for Treatment of Domestic Wastewater and Handling of Sewage Sludge on... Joseph Rouse Published: 31 October 2014
Proceedings of The 4th World Sustainability Forum, doi: 10.3390/wsf-4-d004
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A survey was conducted of the wastewater treatment systems and related sludge handling practices on the island of Yap in the Federated States of Micronesia to assist in identifying areas where further work would be merited to improve on effectiveness and sustainability. A detailed inventory was made of communal septic tanks as found at health centers and schools. The precise location of each unit was determined using global positioning and the general condition and functionality were documented. Though most of these septic tanks appeared to be fully functional, there were concerns due to some units being positioned within the tidal zone, covered over with vegetation, or out of reach of the pump truck. The only centralized wastewater treatment plant on Yap consists of an Imhoff-tank system, which services 300 connections in the town of Colonia. The system provides only primary treatment consisting of a limited removal of suspended solids, thus essentially raw sewage is being discharged to the bay. Excess sludge is drawn from the Imhoff tanks on a quarterly basis, which following drying is supposed to be transferred to the landfill; however, local farmers regularly take it for use as fertilizer without adequate treatment. As an immediate target for further study and pilot testing, exploring the use of an attached-growth process as an inexpensive retrofit to enhance the treatment power of the Imhoff-tank system is presented. In addition, the implementation of a composting program for recycle of waste sludge in a safe manner and the development of a framework for management of septic tanks are proposed.
Article 0 Reads 1 Citation Sustainability of Wastewater Treatment and Excess Sludge Handling Practices in the Federated States of Micronesia Joseph D. Rouse Published: 25 September 2013
Sustainability, doi: 10.3390/su5104183
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A survey of wastewater treatment facilities in the Federated States of Micronesia revealed a lack of fully functional treatment systems and conditions that potentially could lead to adverse environmental impacts and public health concerns. Due to inadequate facilities, the amount and composition of wastewater entering the plants as well as the degree of treatment being achieved is largely unknown. In some cases raw sewage is being discharged directly into the ocean and waste sludge is regularly taken by local residents for agricultural purposes without adequate treatment. In addition, the need to establish best management practices for placement and maintenance of septic tanks is urgent. Furthermore, development of eco-friendly solutions is needed to more effectively treat wastewater from industrial and agricultural sources in an effort to abate current pollution problems. Comparisons of treatment methods being used and problems encountered at different locations in the islands would provide valuable information to aid in the development of sustainable treatment practices throughout Micronesia.
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