W Sanjaya Weerakkody, Hsueh-Han Hsieh, Vicente G Abedneko, Ka Hin Ling, Tzu-Chieh Chung, Zih-Yi Wang, Yung-Yen Shih, Tse-Min Lee, Chen Xu, Peter H Santschi, Chin-Chang Hung
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引用次数: 0
Abstract
Swine wastewater poses significant environmental challenges, and conventional microalgae treatments often leave high residual nutrients while consuming substantial freshwater. This study explored the potential of the saltwater macroalgae Agardhiella subulata for nutrient removal and carbon assimilation under varying salinity and ammonium concentrations. Using diluted swine and aquaculture wastewater, A. subulata achieved ammonium and phosphorus removal efficiencies of up to 93 % and 68 %, respectively, within 24 h. It also removed CO2 at rates five times higher than the global forest average and enhanced dissolved oxygen levels, reducing the environmental impact of nutrient-rich wastewater while minimizing freshwater demand. Notably, A. subulata effectively utilized swine wastewater with ammonia concentrations up to 600 μM under salinity conditions of 27-34 ppt. These results demonstrate the potential of A. subulata for large-scale nutrient removal and CO2 reduction, providing a sustainable solution to the environmental impacts of the livestock industry.
期刊介绍:
Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies.
Topics include:
• Biofuels: liquid and gaseous biofuels production, modeling and economics
• Bioprocesses and bioproducts: biocatalysis and fermentations
• Biomass and feedstocks utilization: bioconversion of agro-industrial residues
• Environmental protection: biological waste treatment
• Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.