Note
Over the past few years, we have been developing aquatic plant resources for multiple uses and products. Our research has indicated that both marine plants such as Gracilaria and freshwater plants such as water hyacinths (Eichornia crassipes) can effectively scrub nutrients from wastewaters and produce high biomass yields in the range of 30-40 dry tons/acre/year. Both biomass candidates are good substrates for bioconversion to methane by themselves or in mixtures with sewage sludge.