The mitochondrion exhibits biochemical and functional variations that emerged by random chance as an evolutionary survival strategy, which include enhanced energy production driven by anaerobic respiratory mechanisms. In invertebrates, this mitochondrial anaerobic respiration permits survival at a lower energy state suited for this type of environment while yielding more ATP than by glycolysis ...

Numerous cellular processes involving S-adenosyl-l-methionine result in the formation of the toxic by-product, 5'-methylthioadenosine (MTA). To prevent inhibitory MTA accumulation and retain biologically available sulfur, most organisms possess the "universal" methionine salvage pathway (MSP). However, the universal MSP is inherently aerobic due to a requirement of molecular oxygen for one of t...

The total solids content of feedstocks affects the performances of anaerobic digestion and the change of total solids content will lead the change of microbial morphology in systems. In order to increase the efficiency of anaerobic digestion, it is necessary to understand the role of the total solids content on the behavior of the microbial communities involved in anaerobic digestion of organic...

Anaerobic digestion processes offer the possibility for wastewater treatment while obtaining a benefit through obtained biogas. This paper aims to continue effort adopt data-driven control methods in case of anaerobic processes. The proposes data-based Internal Model Control approach applied an process. deals extensively with issue choosing reference model and proposing engineering this issue. ...

background: leachatecontaining high levels of organic pollution with ammonia, halogenatedhydrocarbons, heavy metals and inorganic salts. among the various methods fortreating leachate, has been developed membrane processes so that a morebiological process of membrane processes is used for separation of solid -liquid. the aimof this study was to evaluate the efficiency of membrane bioreactor eff...

New and existing technologies for the monitoring of anaerobic digestion processes are presented. Emphasis is given to the way these sensors can provide insight in the ongoing (bio-)processes. Attention is drawn to a number of practical problems associated with the use of sophisticated sensors in the harsh (dirty) conditions of wastewater treatment processes. The use of autocalibration and built...

It is well known that anaerobic digestion (AD) is a multi-step process in which complex substrate molecules are firstly hydrolysed to simpler soluble monomers, in the hydrolytic-acidogenic step, then transformed into volatile fatty acids (VFAs), and finally converted into methane and carbon dioxide, in the acetogenic-methanogenic step.1–3 Normally, bacteria involved in these steps are quite dif...

Methyl tert-butyl ether (MTBE), an octane enhancer and a fuel oxygenate in reformulated gasoline, has received increasing public attention after it was detected as a major contaminant of water resources. Although several techniques have been developed to remediate MTBE-contaminated sites, the fate of MTBE is mainly dependent upon natural degradation processes. Compound-specific stable isotope a...