Enviraj|Photobioreactor

Enviraj Consulting

Photobioreactor

Photobioreactor
Overview	A photobioreactor is a bioreactor that utilizes a light source to cultivate phototrophic microorganisms.These organisms use photosynthesis to generate biomass from light and carbon dioxide and include plants, mosses, macroalgae, microalgae, cyanobacteria and purple bacteria. Within the artificial environment of a photobioreactor, specific conditions are carefully controlled for respective species. Thus, a photobioreactor allows much higher growth rates and purity levels than anywhere in nature or habitats similar to nature. Hypothetically, phototropic biomass could be derived from nutrient-rich wastewater and flue gas carbon dioxide in a photobioreactor.
Anoxic-aerobic photobioreactor used during STWW (synthetic textile wastewater) treatment. (Algal Research 29 (2018) 170–178)
How Does it Works	Flow Description 1. From the feed tank(STWW) wastewater enters to Anoxic reactor where the denitrification takes place. 2. As oxygen deficent effluent from the anoxic reactor passes though photobioreactor within a controlled environment, the oxidation takes place and phototropic biomass is generated. 3. The effluent is than allowed to settle in the clarifier from where treated water can be collected. The sludge generated can be recyled back to anoxic reactor.
Pollutants Removed	COD, BOD, & Total Nitrogen
Area of Application	Research
Environmental Footprint	Unknown
Area Footprint	Unknown
Treatment cost per Cubic Meter	Unknown
Capital Cost	High
O&M Cost	unknown
Data Sources:	https://www.sciencedirect.com/science/article/pii/S0960852415006598 http://www.oilgae.com/algae/cult/pbr/pbr.html https://www.researchgate.net/publication/321443192_Assessing_textile_wastewater_treatment_in_an_anoxic-aerobic_photobioreactor_and_the_potential_of_the_treated_water_for_irrigation