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Nutrient Utilization From Anaerobic Digester Effluent Through Algae Cultivation, Shantanu Wahal
Nutrient Utilization From Anaerobic Digester Effluent Through Algae Cultivation, Shantanu Wahal
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Nutrients present in digested animal waste can be utilized for algae cultivation under suitable conditions. Algal growth, however, depends on the chemical forms and speciation of these nutrients. In this study a chemical equilibrium model was first used to describe nutrient speciation and predict conditions that enhance the solubility of nutrients in anaerobic digester effluent. Dilution with water and separation of large particulates greatly improved nutrient availability and light penetration - conditions favorable for algal cultivation. Algae growth was tested using three strains - Scenedesmus dimorphous (UTEX # 417), Chlorella vulgaris (UTEX# 265), and an algal isolate (designated as LLAI …