5 documents found, page 1 of 1
Challenging the conductive paradigm: The unexpected role of sand in anaerobic d...
Hoffmann, Nicolás; Braga, Cátia Sofia Neves; Rubilar, Olga; Ciudad, Gustavo; Tortella, Gonzalo; Hermosilla, Edward; Duarte, Maria SaloméThe application of conductive materials (CM) has emerged as a strategy to enhance methane production (MP) in anaerobic digestion (AD) systems. This study highlights the potential of sand as an alternative to CM for biomethane production during AD, utilizing complex microbial communities and pure cultures of methanogens. Sand (non-CM) was compared with activated carbon (AC) and nano-zero valent iron (nZVI), both...
Stimulating volatile fatty acid production in anaerobic digestion: Bacterial co...
Hoffmann, Nicolás; Ciudad, Gustavo; Fincheira, Paola; Rodriguez, Rodrigo; Vergara, Christian; Tortella, Gonzalo; Durán, Paola; Braga, Cátia Sofia NevesThe production of volatile fatty acids (VFA) through anaerobic digestion has gained significant attention due to its potential benefits for renewable energy, biofuel production, waste valorization, bioproduct synthesis, and wastewater treatment. Nano-zero valent iron (nZVI) and magnetite nanoparticles (FeO-NPs) have been identified as effective nanomaterials for enhancing methane production, although their appl...
Enhancing anaerobic digestion by simultaneous application of a combined treatme...
Hoffmann, Nicolas; Tortella, Gonzalo; Vergara, Christian; Martins, Gilberto; Rubilar, OlgaAnaerobic digestion (AD) is one of the most energy-efficient technologies for treating biodegradable waste since biogas can be generated as a by-product. AD is a biochemical process mediated by a consortium of microorganisms without oxygen in four stages: hydrolysis, acidification, acetogenic and methanogenesis. The addition of iron-based nanoparticles (Fe-NPs) aims to boost the AD process to enhance the biogas...
Negative impacts of cleaning agent DEPTAL MCL® on activated sludge wastewater t...
Padrão, Jorge; Ferreira, Vânia; Mesquita, Daniela P.; Cortez, Susana Maria Ribeiro; Dias, Nicolina Marques; Duarte, Maria Salomé Lira; Tortella, GonzaloDEPTAL MCL® is a professional cleaning agent approved by the Portuguese Food Regulatory Authority and is used in agro-food industries, namely in fish canning industries in the north of Portugal. Its extensive use during cleaning procedures results in potential significant negative impacts on the performance of the downstream municipal wastewater treatment plant (WWTP). A lab-scale extended areation activated sl...
Nitrifying soil bacterium Nitrosomonas europaea: operational improvement of sta...
Padrão, Jorge; Tortella, Gonzalo; Cortez, Susana; Dias, Nicolina M.; Nicolau, Ana; Mota, ManuelNitrosomonas europaea is the most extensively studied ammonia-oxidizing bacterium (AOB), being a ubiquitous player in the conversion of ammonia in the soil environment. The precipitation of constituents of the standard culture medium, American Type Culture Collection (ATCC) \#2265, further hinders both the study of N. europaea vital role in the nitrogen cycle and the development of biotechnological applications...