Journal of In Silico & In Vitro Pharmacology

Elimination of nitrogen and phosphorous compounds from industrial and domestic effluents using vertical bioreactors

Eutrophication, the environmental effects of excess nitrogen and phosphorous compounds in water, has the most deleterious effects on water quality and aquatic species. This is characterized by an uncontrollable growth of algae, and the appearance of hypoxia. The annual economic losses due to eutrophication are measured in billions of dollars and affect a spectrum of economic activities all over the world. Eutrophication has a largely anthropogenic origin created by industrial farming, emissions from wastewater treatment plants, emissions from power plants, and other industrial activities. The largest majority of nutrient removal plants are planar and demand big and expensive construction area. Furthermore, mixing is inadequate due to their rectangular cross section. In this presentation, we describe the economic and operational advantages of a novel multistage vertical bioreactor, with a high nutrient removal efficiency, installation simplicity and easy scale-up. The bioreactor is especially suited for retrofitting nutrient removal plants located in urban or highly populated areas. A demonstration plant of 20,000 L/day based on our US Patent is being built in Pickering, Ontario.

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Author(s): Manuel Alvarez Cuenca

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