Enhancing renewable energy production from water hyacinth (Eichhornia crassipes) by a biogas-aerating recirculation system: A case study in the Vietnamese Mekong Delta
Trần Sỹ Nam, N. Van Cong, Huynh Van Thao
Abstract
The study aims to examine biogas-aerating recirculation on biomethanation in a farm-scale digester with water hyacinth substrate. The experiment was conducted with the difference in biogas-aerating times and frequencies. Methane yield considerably improved by 27.44–52.12%, 50.19–62.30% and 63.11−71.46% for aerating biogas from 15 to 60 minutes at once, twice and four-time d −1 , respectively. Maximum biogas yields were estimated for biogas-aerating at once, twice, and four daily repetitions at 47.8, 78.0, and 145 minutes. Biogas-aerating 30 minutes at twice d −1 and 15–60 minutes at four-time d −1 displayed great potential for biogas production augmentation.
Topics & Concepts
Eichhornia crassipesHyacinthRenewable energyBiogasMekong deltaEnvironmental scienceVietnameseAerationBiogas productionEnvironmental engineeringAquatic plantWaste managementAnaerobic digestionWater resource managementEngineeringBiologyEcologyMacrophytePaleontologyLinguisticsMethanePhilosophyConstructed Wetlands for Wastewater TreatmentBiological Control of Invasive SpeciesWastewater Treatment and Reuse