Genetically engineered (GE) microalgae are nearing commercial release for biofuels production without sufficient public information or ecological studies to investigate their possible risks. Blue-green algae (cyanobacteria) and eukaryotic green algae are likely to disperse widely from open ponds and, on a smaller scale with lower probability, from enclosed photobioreactors. With powerful molecu...

Compact algal reactors are presented with: (1) closely stacked layers of waveguides to decrease light-path to enable larger optimal light-zones; (2) waveguides containing scatterers to uniformly distribute light; and (3) hollow fiber membranes to reduce energy required for gas transfer. The reactors are optimized by characterizing the aeration of different gases through hollow fiber membranes a...

The aim of this work was to evaluate the efficiency new GreenDune photobioreactors for tertiary wastewater treatment, treated reuse and biomass application, using naturally occurring microalgae consortia. study conducted on a pilot installation in treatment plant Portugal different operational conditions were tested. system capable remove up 95% NH4+, main pollutant after secondary hydraulic re...