Membrane bioreactor (MBR)technology has been employed in sewage sludge treatment within polyhydroxyalkanoate (PHA) production systems to tackle challenges like sustainable recovery of volatile fatty acids (VFA) and achieving high-quality effluent. Typically, MBRs utilize pressure-driven membranes, mainly ultrafiltration (UF) membranes. Despite its advantages, membrane fouling remains a significant hurdle, particularly when scaling up from laboratory-scale to… Continue reading Improving Recovery of Valuable Bio-Products from Sewage Sludge Using Innovative Membrane Technologies
Biologically-derived volatile fatty acids (VFAs) are gaining attention as a sustainable alternative to petroleum-based VFAs. The anaerobic digestion (AD) process can effectively recover VFAs from organic-rich waste and wastewater, aligning with the principles of the circular bio-economy and sustainability. However, this approach currently faces several challenges. The AD effluent containsmixed VFAs, in relatively lowconcentrations, solubilized… Continue reading Enhancing Volatile Fatty Acids Recovery Through Nanofiltration: A Sustainable and Efficient Solution Within the Circular Economy
Cyanobacteria have been identified as promising organisms to reuse nutrients from waste effluents and produce valuable compounds such as lipids, polyhydroxyalkanoates (PHAs), and pigments. However, almost all studies on cyanobacterial biorefineries have been performed under lab scale and short cultivation periods. The present study evaluates the cultivation of the cyanobacterium Synechocystis sp. in a pilot… Continue reading Production of phycobiliproteins, bioplastics and lipids by the cyanobacteria Synechocystis sp. treating secondary effluent in a biorefinery approach
This study was carried out with the scope of resource recovery platform from the food waste-based organic materials in the presence of in situ microfiltration immersed anaerobic membrane bioreactor. Afterwards, ultrafiltration technology was adopted. These microfiltration and ultrafiltration processes successfully removed larger particles, i.e., suspended solids from the anaerobically digested effluent. Moreover, ultrafiltration membranes (50 kDa)… Continue reading Microfiltration and Ultrafiltration as Efficient, Sustainable Pretreatment Technologies for Resource Recovery
Microplastics’ dangers and the absence of effective regulation technologies have risen to prominence as a worldwide issue in recent years. South Asian countries, such as Bangladesh, are among the most threatened nations to face the drastic consequence of releasing microplastics into the aquatic environment. The research on managing and degrading microplastics is ongoing, however, sustainable… Continue reading Aquatic Microplastic Pollution Control Strategies: Sustainable Degradation Techniques, Resource Recovery, and Recommendations for Bangladesh
The textile industry has notably contributed to the development of many countries’ economies. Global textile production has increased in recent years because of population growth and higher living standards. However, the enormous amount of hazardous waste that has been generated by textile-related industries is of great concern. Improper handling and irregular disposal of textiles waste… Continue reading Textile waste management and environmental concerns
