Zimin Hu , Jingjing Li , Jun Qian , Jin Liu , Wenguang Zhou
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引用次数: 0
摘要
本研究调查了旋转藻类生物膜(RAB)处理酱油废水(SW)的功效及其相关处理机制。在优化的 5 天收获时间和 2 天水力停留时间下,旋转藻类生物膜系统表现出卓越的营养物去除率(化学需氧量、氨氮、总氮和磷的去除率分别为 92%、94%、91% 和 82%)和生物膜生产力(14 g m d)。这主要归功于藻类-真菌()-细菌(和)联合体内部的协同作用,它们有效地将某些胞外聚合物物质同化为生物质,从而促进了藻类生物膜的生长。藻类生产率的提高显著改善了生物质中蛋白质和必需氨基酸的含量,这表明其具有应用于动物饲料的潜力。这项研究不仅展示了一种可持续的 SW 管理方法,还深入探讨了营养物质的去除和生物质的转化,为营养物质回收和废水处理的大规模应用提供了一种可行的策略。
Efficacy and mechanisms of rotating algal biofilm system in remediation of soy sauce wastewater
This study investigated the efficacy of the rotating algal biofilm (RAB) for treating soy sauce wastewater (SW) and its related treatment mechanisms. The RAB system demonstrated superior nutrient removal (chemical oxygen demand, ammonium nitrogen, total nitrogen, and phosphorus for 92 %, 94 %, 91 %, and 82 %, respectively) and biofilm productivity (14 g m−2 d–1) at optimized 5-day harvest time and 2-day hydraulic retention time. This was mainly attributed to the synergistic interactions within the algae-fungi (Apiotrichum)-bacteria (Acinetobacter and Rhizobia) consortium, which effectively assimilated certain extracellular polymeric substances into biomass to enhance algal biofilm growth. Increased algal productivity notably improved protein and essential amino acid contents in the biomass, suggesting a potential for animal feed applications. This study not only demonstrates a sustainable approach for managing SW but also provides insight into the nutrient removal and biomass conversion, offering a viable strategy for large-scale applications in nutrient recovery and wastewater treatment.
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.