Wastewater treatment high rate algal ponds (WWT HRAP) for low-cost biofuel production

Biodiesel production potential of wastewater treatment high rate algal pond biomass

“…To reduce the environmental problems associated with use of transportation fuels, replacement of petro-diesel by premium quality biodiesel derived from a renewable feedstock such as algal has been suggested for several decades (Mehrabadi et al, 2015;Sheehan et al, 1998). Of all renewable biofuel resources, microalgae have been highlighted due to: 1) high biomass and lipid productivities (up to 100Â greater than oil seeds), 2) temperature tolerance, 3) ability to grow on wasteland and wastewater, 4) ability to bio-fix high amounts of CO 2 (1.7-2.4 tons of CO 2 per one ton of microalgae biomass), and 5) relatively simple life cycle (Nascimento et al, 2015;Sheehan et al, 1998).…”

Wastewater treatment using microalgae: how realistic a contribution might it be to significant urban wastewater treatment?

“…The utilization of microalgae for wastewater treatment was first reported by Oswald in 1960 but has recently been reviewed (Mehrabadi et al, 2015;Olguín et al, 2012;Park and Craggs, 2010). However, there is little industrial development of this technology, with only a few small-scale facilities in existence.…”

Effects of Influent Algae Concentrations and Seasonal Variations on Pollutant Removal Performance in High-Rate Algae Ponds

“…Ammonia and phosphate may be nutrient sources for algae [8]. Nitrogen assimilation by algal cells represents the direct nitrogen removal mechanism in the HRAPs [13].…”

“…photosynthetic efficiency [7][8]. Algae can increase pH and dissolved oxygen (DO) via photosynthesis in HRAP, which is attributed to phosphorus precipitation and aerobic degradation of organic compounds.…”