Improving effect of metal and oxide nanoparticles encapsulated in porous silica on fermentative biohydrogen production by Clostridium butyricum

Abstract

12This paper investigated the enhancement effect of nanometre-sized metallic (Pd, Ag and Cu)

Enhanced dark fermentative hydrogen production by zero-valent iron activated carbon micro-electrolysis

“…In addition, the researchers have suggested that when the ambient temperature is relatively lower, bacteria need more ferrous ion to activate the hydrogenase enzyme, so that it can oxidize reduced ferredoxin for better production of molecular hydrogen [15]. Recently, metal oxide (Fe x O y ) nanoparticle has been applied to enhance fermentative hydrogen production due to its affinity for electrons and high reactivity [16,17]. However, it also faces a critical issue that hinders its application.…”

Anaerobic co-digestion of acetate-rich with lignin-rich wastewater and the effect of hydrotalcite addition

“…The increased surface area provided by HT nanoparticles and their action as biocatalysts leads to enhancement of microorganism activity and possible enhanced bacterial anchoring. This in turn, may be the cause of greater microbial growth in samples with HT addition (Rodriguez-Chiang et al, 2016;Beckers et al, 2013).…”

“…It was observed that microbial growth was higher in all samples containing HT compared to the samples with no HT addition. Studies have found that some microorganisms take advantage of nanoparticles, especially in anaerobic conditions, by transferring more efficiently electrons to acceptors (Beckers et al, 2013). The increased surface area provided by HT nanoparticles and their action as biocatalysts leads to enhancement of microorganism activity and possible enhanced bacterial anchoring.…”

Aspectos relevantes del diseño de humedales construidos acoplados a sistemas bioelectroquímicos para el tratamiento de efluentes y generación de energía

“…Clostridium butyricum fue el primer microorganismo electrogénico Gram positivo (Beckers et al, 2013), un tipo de bacteria anaeróbica estricta, que puede producir electricidad metabolizando almidón, sacarosa y otros polisacáridos. Clostridium beijerinckii también puede producir electricidad usando almidón, melaza, glucosa y ácido láctico (Zhang et al, 2013).…”