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The challenge posed by micropollutants and pathogens has been the subject of considerable interest over the past few decades. Our online event 'Discussing membrane technology: micropollutants and pathogens' event was held on 14 April 2021, in which Simon Judd and Graeme Pearce hosted a discussion with 30 delegates worldwide on the subject.
Membrane operation|Process biology|Water quality and treatability|Conferences and events
Disinfection by MBRs. Unlike regular physical membrane filtration, virus removal by MBRs is not limited to simple size exclusion. Adsorption onto the sludge solids and the membrane cake layer (as well as the membrane itself) represent important removal mechanisms, as well as removal by predation (the feeding on the pathogens by other higher organisms).
Membrane operation|Process biology|Water quality and treatability
A feature of the MBR market over the past decade is the surge in the number of very large (≥100 MLD, or megalitres/day) installations, particularly in China. Of the 55 known global installations of greater than 100 MLD capacity, 39 are in China. The Chinese plants account for 74% of the total capacity of this group.
Feasibility, optimisation and costs|Water quality and treatability
Ever more versatile and sophisticated options for designing and managing plants are being developed. And as the new CAE tools become more accessible and widespread, suppliers continue to develop and refine the tools, so the reliability of their predictions increases – promoting further take-up.
Process biology|Feasibility, optimisation and costs|Pre-treatment and post-treatment|Water quality and treatability
A study carried out by Andrade and co-authors assessed the viability of a two-stage membrane bioreactor−nanofiltration scheme (MBR−NF) for treating dairy wastewater. Of key concern was the quality of the treated water with respect to its potential reuse and the overall cost of the scheme.
Feasibility, optimisation and costs|Pre-treatment and post-treatment|Water quality and treatability
China features many of the largest municipal wastewater MBRs in the world. Apart from their capacity, some also are ambitious in their construction. The below-ground installation at Kunming City, commissioned in 2012, is one such example. At an ADF (average daily flow) capacity of 150,000 m3/d and a peak daily flow of 195,000 m3/d, it is a substantial plant.
Membrane operation|Feasibility, optimisation and costs|Pre-treatment and post-treatment|Water quality and treatability
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