Recycling of Nutrients from Dairy Wastewater by Extremophilic Microalgae with High Ammonia Tolerance
Na Pang, Andre David Bergeron, Xiangyu Gu, Xiao Fu, Tao Dong, Yiqing Yao, Shulin Chen
Abstract
sp. could tolerate. The isolate was mixotrophically cultured in dairy effluent treated by anaerobic digestion (AD) for recycling nutrients and polishing the wastewater. The highest biomass content of 13.3 g/L and protein content of 43.4% were achieved in the culture in AD effluent. Up to 96% of the total nitrogen and 79% of the total phosphorus were removed from the dairy AD effluent. The ability of the algae to tolerate a high level of ammonia nitrogen suggests the potential for direct nutrient recycling from dairy wastewater while producing algal biomass and high value bioproducts.
Topics & Concepts
EffluentWastewaterNutrientBiomass (ecology)Chlorella vulgarisPulp and paper industrySewage treatmentBioproductsAnaerobic digestionPhosphorusNitrogenChlorellaEnvironmental scienceBiologyAlgaeChemistryBiofuelEnvironmental engineeringAgronomyBiotechnologyBotanyEcologyOrganic chemistryEngineeringMethaneAlgal biology and biofuel productionAquatic Ecosystems and Phytoplankton Dynamics