Extracellular polymeric substances (EPS) produced by microorganisms play a crucial role in various bioprocesses, including bioleaching. The microbial leaching of metal sulfides requires an initial cell attachment, which is facilitated EPS. These are mixtures polysaccharides, proteins, lipids, and other compounds, their composition properties can vary depending on the species, growth conditions,...

In this work, proteins in extracellular polymeric substances extracted from anaerobic, anoxic and aerobic sludges of wastewater treatment plant (WWTP) were analyzed to probe their origins and functions. Extracellular proteins in WWTP sludges were identified using shotgun proteomics, and 130, 108 and 114 proteins in anaerobic, anoxic and aerobic samples were classified, respectively. Most protei...

In the membrane distillation bioreactor (MDBR) process, flux increases with increasing feed temperature, but presence of microorganisms limits temperature. Also, accumulation cells and other substances on surface can affect efficiency MDBR. this study, hospital wastewater was treated by thermophilic activated sludge MDBR, initial 7.87 L‧m−2·h−1 stable 3.88 L‧m−2·h−1. The particle size, zeta pot...

Despite increasing interest in and use of nanoparticles (NP), the environmental consequences using NP are poorly understood because most relevant studies have not taken effects natural coatings on into consideration. The aim this study was to improve our understanding fates aquatic systems. silver (AgNP) capped with citrate polyethylene glycol dispersed ecotoxicological matrices presence enviro...

Under certain conditions, dispersed crude oil in the sea combines with organisms, organic matter, and minerals to form marine snow (MOS), thereby contributing sinking of seafloor. Marine microbes are main players MOS formation, particularly via production extracellular polymeric substances. Distinct groups also consume majority hydrocarbons during descent, leading enrichment less bioavailable a...