1983-2020 Projects, processes and demonstrations employing microalgae
deployed by Greenskill`s management.

1983-1986. Identification and isolation of heterocyst specific gene sequences from filamentous blue-green algae. Transcriptomics of cell differentiation and nitrogen fixation.

1986-1989. Blue-Green Biotech - artificially illuminated photobioreactor (PBR) system powered by biogas generated electricity from the anaerobic digestion of chicken manure. Filtered digestate supplied the nutrients for Spirulina cultivation in the PBR.

In 1993 we designed and deployed the UK’s first algae based wastewater treatment process which employed an auto-flocculating microbial consortia, primarily comprising Chlorella, Scenedesmus and bacteria, to effect nutrient removal as tertiary treatment. The 5000 litre helically tubular Biocoil photobioreactor incorporated an automatic tube cleaning system using ‘pigs’. Located at Severn Trent PLC`s Stoke Bardolph STW in Nottingham, the system effectively removed N & P with an HRT of 1 day, however, the running costs at that time were unjustifiable.

1993 Working with the late Dr Paul Jenkins from the University of the West of England, we fueled a diesel engine using powdered algae. This work was featured on the BBC`s Tomorrow`s World at the time. (video above)