Cultivation systems (bioreactors) used in large-scale cyanobacteria growth operations can be quite sophisticated and expensive. Given that this process is designed to be a low-intensity and small-scale operation, we explored different avenues for developing lower cost setups. Using published price information from distributors, we determined that a plastic bag photobioreactor (b-PBR) assembly that uses ground solar panel racks as the mounting hardware significantly reduces the total capital investment (TCI) of the reactors. From this analysis we estimated the capital cost for the b-PBRs to be 0.213 MMUSD, while the cost of the remaining equipment, obtained from values reported in the literature, was 3.682 MMUSD. This resulted in a TCI of 3.895 MMUSD and a total operating cost (TOC) of 0.837 MMUSD/yr. A detailed breakdown of the TCI and TOC across the various sections/components of the process can be found in Supplementary Figure . Schematic representation of proposed baseline nutrient recovery process from manure. The anaerobic digestion system produces biogas, which is separated into a pure methane stream and a mixed CO2/H2S stream. A fraction of the methane is exported while the rest is used to generate electricity and carbon dioxide. Liquid digestate from the anaerobic digestion system passes through a solid liquid separator, removing suspended solids. The liquid digestate fraction is combined with CO2 generated from combustion to cultivate cyanobacteria biomass in a bag photobioreactor (b-PBR). Cyanobacteria culture is concentrated via flocculation, clarification, and filtration, while recovered water is recycled with 5% purged to prevent contaminant buildup. Concentrated biomass is fully dried to generate a nutrient rich biofertilizer.