Use of microalgae biomass for production of granular nitrogen biofertilizers

• DOI: 10.1080/17518253.2022.2071593
• Publication Date: 2022-05-18T06:37:23Z
• Authors: Rasa Slinksienė; Egle Sendzikiene; Austeja Mikolaitiene; Violeta Makarevic...; Rasa Paleckiene; Dovile Ragauskaite
• Keywords: Biofertilizer

This article presents the results of optimizing microalgae Chlorella sp. cultivation to obtain a higher amount biomass and use cheaper suitable waste for algae cultivation. It has been found that most growing is landfill leachate, which can replace source nitrogen in medium. The largest concentration obtained medium containing 0.08 g·L−1 acquired from leachate. For fertilizer production, suspension was centrifuged analyzed. chemical composition be sufficiently good produce granular with bioactive materials because it contains primary nutrients (3.49% nitrogen, 2.10% phosphorus, 0.50% potassium) along secondary (13.42% calcium 3.69% magnesium) 75.33% organic matter trace elements. Also, does not contain any heavy metals. allows reduce moisture used production fertilizers. If optimal conditions are chosen, possible granulate satisfies all criteria.