Cocopeat is the dust that remains when the fibers (coir) are removed from ground shells. The material is especially resilient in the wastewater environment. Initial trials showed that cocopeat produces good results in the reduction of organic matter and suspended solids found in domestic and commercial wastewater.
RTI collaborated with Can Tho University in Vietnam; Institut Teknologi Bandung (ITB) in Indonesia; Muntinlupa City in the Philippines; and Duke University in North Carolina to test various aspects of the technology. RTI researchers experimented with a variety of mixes of commercially available cocopeat and fiber particles to determine the best mix for long term functionality.
Cocopeat trials were conducted by RTI researchers at two public schools in Muntinlupa City, Philippines just outside of Metro Manila. “The location provided an opportunity to provide real sanitation improvement for hundreds of children, while demonstrating and promoting the technology,” Robbins said.
Analysis of the water discharged from the system shows that reductions in organic matter, solids and pathogenic bacteria approached 90 percent, comparable to results for constructed wetlands and sewage lagoons.
Now that testing is complete, RTI has applied with the Bill & Melinda Gates Foundation for Phase 2 of the project, which will begin the commercialization of the technology by developing modular units that can be rapidly deployed in a variety of urban settings.