Get Membrane bioreactor processes : principle and application PDF

By Seong-Hoon Yoon

ISBN-10: 1482255847

ISBN-13: 9781482255843

"Preface Membrane expertise has been swiftly constructed in contemporary a long time to fulfill a number of wishes from a variety of industries. i used to be fortunate to be a graduate scholar whilst the theories on membrane filtration have been being matured and numerous new applied sciences emerged within the Nineties. Membrane bioreactor (MBR) know-how used to be one of many rising applied sciences on the time, and it truly is now probably the most profitable membrane processes Read more...

summary: "Preface Membrane know-how has been quickly constructed in fresh many years to fulfill a number of wishes from a number of industries. i used to be fortunate to be a graduate pupil whilst the theories on membrane filtration have been being matured and numerous new applied sciences emerged within the Nineties. Membrane bioreactor (MBR) know-how was once one of many rising applied sciences on the time, and it really is now essentially the most profitable membrane techniques of all time besides opposite osmosis (RO). i began MBR examine in graduate university and persisted it all through my service as a examine engineer of the LG staff and Nalco. i must admit i've been significantly indebted to each person who contributed to the improvement of membrane know-how. even though the information base of MBR has been accelerated within the final twenty years, the gaps among the forefront educational study and the sensible information received from the sector have additionally been widened. Hoping to fill the distance, i began to proportion my event within the lecturers and the sector via my web publication (http://www.onlinembr.info) considering that 2011. This open-source wisdom sharing was once an excellent good fortune, having greater than two hundred distinctive viewers an afternoon globally, virtually both dispensed one of the Americas, Europe, and Asia. The questions and reviews I bought have been a good resource of latest info and proposal. With a number of encouragements from the audiences, I took braveness to writer this e-book. The contents within the weblog have been completely reviewed and transformed with extra fillers to make the contents extra rigorous and entire. This publication is written with an emphasis at the rules in the back of the scene rather than easily introducing the best way MBR works. Chapters 1 and a pair of are concerning the basics of membrane filtration correct to MBR. bankruptcy 2 is particularly concerning the"

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Extra resources for Membrane bioreactor processes : principle and application

Example text

Because submerged membranes are operated at a much lower flux, therefore less compact cake layers are formed. Nonetheless, cake resistance is greater than membrane resistance with a potential exception in the very beginning of a filtration cycle. In addition to cake resistance, hollow fiber–based submerged membranes suffer from internal pressure loss caused by the permeate flow in the narrow lumen. 6, the high permeability of the hollow fiber membrane does not always lead to high flux due to the performance loss by the internal pressure loss.

If TMP is increased to compensate for the permeability loss, filtration goes through a new subcycle from stage 1. 3 Sudden TMP Increase The sudden TMP increase (or jump) is commonly observed in submerged membrane filtration operated at a constant flux mode. 1, the dominant cause of the sudden TMP increase is a vicious circle between cake layer compaction and increasing TMP (Chang et al. 2006a; Park et al. 2006; Fane 2007), but there are other explanations that may also contribute to the phenomenon.

The solution diffusion model, preferential sorption-capillary flow model, surface force-pore flow model, and Donnon exclusion model are some examples. Detailed reviews on such models are found in Rautenbach and Albrecht (1989). It is beyond the scope of this book, but the important consequences of the unique separation mechanisms of nonporous membranes are briefly listed as follows: • Water and solute passages rely on their own solubility and dissolution kinetics in polymeric membranes rather independently.

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Membrane bioreactor processes : principle and application by Seong-Hoon Yoon


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