Abstract
Hydrothermal carbonization (HTC) is an emerging technology for energy recovery from wet biomass waste streams, including dairy manure. The HTC aqueous product (HAP) contains organic compounds and nutrients, requiring further treatment prior to environmental discharge. The goal of this study was to evaluate nutrient removal from dairy manure HAP using four species of microalgae: Chlamydomonas reinhardtii, Chlorella vulgaris, Arthrospira maxima, and Scenedesmus obliquus. The optimal HAP concentration for all species was 5% with little to no growth observed at lower dilutions. The highest nutrient removal occurred with A. maxima with > 93%, 33%, 81%, and 50% removal of NH3, NO3-, total nitrogen (TN), and total phosphorus (TP), respectively. Nutrient removal with the other species ranged from 35% to 82% of NH3, 29% to 35% of NO3-, 12% to 34% of TN, and 8% to78% of TP. Integrating HTC with microalgae cultivation is a promising treatment method for combined energy and nutrient recovery from dairy manure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.