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From Waste to Value Added Products Bioelectrochemical Approaches for Sustainable
Published in Gunjan Mukherjee, Sunny Dhiman, Waste Management, 2023
Francisco Javier Bacame-Valenzuela, Jesùs Pérez-García, Mayra Figueroa-Magallon, Yolanda Reyes-Vidal
This comprehensive approach requires alternatives that consider the sustainability, compatibility and marketing of existing products. Furthermore, these products must be of good quality and relatively inexpensive. This can be achieved when using renewable sources that have a positive impact on the environment, such as biomass, considered as a renewable source of microbial nutrients for the production of bioproducts (Mohammed and Wan 2019). Some of the new bioproduction processes have a high production cost that limits their industrial application. Redox imbalance, by-product formation and metabolic burden are the main challenges in such processes, which could be solved by increasing the competitiveness of biotechnological processes compared to chemical processes (Yu et al. 2018).
Validated innovative approaches for energy-efficient resource recovery and re-use from municipal wastewater: From anaerobic treatment systems to a biorefinery concept
Published in Critical Reviews in Environmental Science and Technology, 2020
Çağrı Akyol, Alessia Foglia, Emine Gozde Ozbayram, Nicola Frison, Evina Katsou, Anna Laura Eusebi, Francesco Fatone
In the concept of valorization of municipal wastewater, two-step bioconversion stands as an attractive alternative route (Li & Yu, 2011) in the fermentation reactors (Table 3). Complex organic matter in wastewater is simply converted to VFAs before ending up as other valuable end-products (Zhou, Yan, Wong, & Zhang, 2018). This allows a separated optimization of bioconversion mechanisms into a more straight-forward bioproduction process (Pan et al., 2018). The concentration and speciation of VFAs during this process often determines the desired quality of the end-products (Reyhanitash, Kersten, & Schuur, 2017).