Membrane bioreactors present the advantage of being compact and obtaining a very good quality effluent, which remains constant even at very high load; membrane separation along with a methanisation ... Methane fermentation Anaerobic Membrane separation ... anaerobic digestion process with membrane separation...

The membranes are placed or directly formed inside a support tube (porous or pierced with drainage holes) whose diameter will vary between 4 and 25 mm. These tubes are then placed in parallel ... Membrane separation ... Separations by membranes...

gas permeation A gas mixture can be depleted or enriched through action on the diffusion rates applicable to these constituents within the membrane’s dense matrix under the pressure gradient effect ... Membrane separation ... Separations by membranes...

a proportion of the salts (drinking water); in this case, this method is in direct competition with low pressure reverse osmosis and even with nanofiltration (see chapter separation by membranes). It should ... Membrane separation Reverse Osmosis ... dialysis membranes ... Separations by membranes...

The module’s configuration limits the recovery rate that can be applied (table 1). The importance attributed to this rate was emphasized in the section membrane separation. Table 1. Usable ... Clarification Membrane separation Desalination ... Separations by membranes...

of dead end filtration. Cross-flow filtration is used – (see membrane separation). Filtration takes place due to the pressure differential that exists between the inside of the membrane (retentate side ... Ultrafor Membrane separation ... the main membrane bioreactor families ... Filters Biological processes Separations by membranes...

polarity, e.g. ethanol, methanol and formaldehyde). Mechanism: if we separate a concentrated saline solution from a dilute solution using this type of membrane (also designated as permselective) (figure 51 ... Nanofiltration Desalination Membrane separation Reverse Osmosis ... desalination membranes ... Separations by membranes...

can only be “cleaned” by means of a suitable chemical treatment. Figure 56. Backwashing In practice, in separation by membranes, we shall see that all ultrafiltration membranes used in water ... Clarification Ultrafiltration Microfiltration Filtration Membrane separation ... clarification membranes ... Filters Separations by membranes...

As already described in the section membrane separation, the principle of a desalination system operation can be outlined as seen in figure 7. Figure 7. Simplified operating diagram ... Membrane separation Desalination ... Separations by membranes...

of the water produced by the first stage is pumped back to the second stage that can be equipped with a different membrane, e.g. figure 10 (simplest case). In order to avoid any confusion with the series ... Membrane separation Desalination ... Separations by membranes...

water, even in the case of strong seasonal variations and beyond the highest standards, the use of membrane technique allows to have a better control over the separation between water and sludge ... Ultrafiltration Membrane separation Wastewater ... Ultragreen™ is a wastewater treatment process (residential and industrial) by ultrafiltration flat sheet membranes. With a huge compact size, it provides a clean effluent quality to answer the most ... biological purification by ultrafiltration flat sheet membranes– Ultragreen™ ...

elements per pressure tube. Comment: As discussed in the section