Immobilisation and biofilm development of on polysulphone and ceramic membranes

Characterization of Biotic and Abiotic Profiles of Greenhouse Evaporative Cooling System Fouling

“…In addition to the characterized Cyanobacteria, we observed the presence of white-rot fungus, Phanerochaete chrysosporium, in the biofilm sample from Sara Farm. This fungus is capable of developing biofilms and producing hydrolytic enzymes even on ceramic and polysulphone membranes 16 . In an experiment to assess the degrading potential of P. chrysosporium, it was found that the fungus was faster in forming biofilms when compared to other fungi, and effectively achieved reduction in the lignin content of pulp mill wastewaters by about 71% 17 .…”

Continuous Biotechnological Treatment of Cyanide Contaminated Waters by Using a Cyanide Resistant Species of Aspergillus awamori

“…Asymmetric membranes have shown to be effective in immobilising biofilms in MBRs since the membranes allow the transport of nutrients to the biomass immobilised on their external surface [27]. Asymmetric refers to the graded porosity of the membrane substructure and indicates that the membranes have an inside coating, a skin layer, and combines the high selectivity of a dense membrane with a high permeation rate of a thin membrane.…”

Maximizing the productivity of catalytic biofilms on solid supports in membrane aerated reactors

“…They are reusable and can be chemically cleaned and sterilized. This is not possible with other polymeric membranes (Sheldon and Small, 2005) and thus makes them a versatile solid support (substratum) for biofilm growth in biofilm reactors. Clogging is due to excessive biofilm growth, and is one of the major problems associated with packed bed reactors (Vrtovsek and Ros, 2006;Qureshi et al, 2004) but it was not experienced in neither reactor set-ups in this study.…”

“…Ceramic spargers with homogeneous microporous distribution showed an enhanced performance in terms of oxygen transfer rates compared to bubble-free aeration systems (Nehring et al, 2004). A significant advantage lies in the smaller required aeration surface area and chemical, thermal and mechanical stability (Sheldon and Small, 2005). Indirect aeration is less attractive because of the technical complexity, the high apparatus cost and difficulties in scale-up.…”