Extensive studies on the treatment of pulp mill wastewater using aerobic granular sludge (AGS) technology

Simultaneous removal of carbon, nitrogen, and phosphorus from landfill leachate using an aerobic granular reactor

“…In the start-up phase, the SVI 30 values were very unstable mainly because of the development of lamentous microorganisms, but progressively a steady increase in biomass concentration was observed. The results obtained in this study were consistent with the similar research by Vashi et al (2019). The average MLVSS/MLSS ratio of 0.45 was observed throughout the operation of AGR.…”

Petrochemical slop wastewater treatment by means of aerobic granular sludge: effect of granulation process on bio-adsorption and hydrocarbons removal

“…Also in this case, a convergence of the mean diameter of granules was observed for both R1 and R2, denoting similar physical properties and behaviour of both kinds of granular biomass. However, the slight low mean diameter in R2 (1 mm vs 1.15 mm in R1) conferred a higher specific surface area to granules, thus enhancing the bio-adsorption capacity of the granular sludge [45,46]. Table 3 includes other granules features like the SVI 5 and granules density.…”

“…Moreover, a gradual change in their colour appearance from yellow in Phase I a , to reddish in Phase III a and, finally, to brown in Phase V a was observed. This gradual change in colour could be likely due to both the progressive adsorption of hydrocarbons inside the granules structure [46] and to a change in microbial composition in the biofilm.…”

“…EPS have a crucial role in granules formation and in bio-adsorption properties [45][46][47][48]. Moreover, the production of extracellular polymeric substances is an indirect indicator of the biological activity of microorganisms.…”

Freezing/thawing pretreatment of dormant Aspergillus niger spores to increase the Cr(vi) adsorption capacity: process and mechanism

“…In general, the biosorption process is largely influenced by pH. 8 Bacteria, yeast, algae, plants, and fungi have been shown to possess a metal adsorption capacity; 9 however, fungi often exhibit better heavy metal biosorption performances than other taxa. Biosorption methods have several advantages including low operational costs, low energy requirements, no secondary pollution, and the possibility of reuse of recovered metals.…”