The SASI Waste Treatment Strategy utilizes highly sophisticated waste treatment processes, collecting and treating all aquacultural wastes with virtually no negative environmental impact. To confront the often insurmountable obstacle of waste management and resource sustainability, SASI technologists have carried out years of focused Research & Development, funded in cooperation with the Ben Franklin Technology Center of Pennsylvania, and the National Oceanic and Atmospheric Administration. The research resulted in the development of an Aquaculture Waste Management Process, which defines the most comprehensive methods available for the processing, treatment, and reclamation of wastes generated within their aquaculture and aquaponics production systems.
These technologies minimize water use, while removing, treating, and recycling the solid and dissolved fish culture wastes, coupled with the co-generation of energy, and the recycling of organic nutrients. The Waste Treatment System uses aerobic stabilization, constructed wetlands, and hydroponic technologies to utilize and mitigate the aquaculture wastes. The stabilized concentrated wastes are released over constructed wetlands, which separate the stabilized solids from the minimized volume of wastewater. The nutrient-laden water is collected and transported to a series of SASI custom designed greenhouses for hydroponic vegetable production.
The hydroponic vegetable and herb production further purifies the waste water by utilizing the dissolved nutrients for their growth. The clear water effluents can now be sterilized and reused within the facility, or discharged. Finally, the solids on the surface of the reed beds can be accumulated, removed, and used as fertilizer.