The FV2B vertical filter is fed with water, without turbulence, by the trough located above the filter media. Thus, the design is a downflow filtration. It supplies desalination plants under 10 ... Filtration, Desalination, GAC, Sand filtration, Filters ... Filtration Desalination GAC Sand filtration Filters ... Hydraulic optimization : very high circle length due to the operating pressure that helps to reduce water loss and backwash sequences Immediate efficiency of filtration after washing due ... Downflow filtration...

filtration mechanisms Three mechanisms are involved in succession: capture, attachment and separation. Their importance depends on the properties of the particles to be screened out ... Filtration ... Filtration ... general filtration principles...

principle A filtration force generated by the capillary action of an absorbent filter paper is applied to a sludge sample (pretreated or not). apparatus (figure 22) The apparatus consists of two ... Filtration ... Filtration...

büchner vacuum filterability test measurement of the specific resistance of a sludge in a 0.5 bar vacuum. This test is typically used to estimate a filter filtration capacity for industrial vacuum ... Filtration ... Filtration...

in-depth filtration head loss As it percolates through a granular filter bed, water loses energy, i.e. pressure, through friction which is designated head loss. At low velocities (laminar flow ... Filtration ... Filtration...

of the curve is reached. In practice, the filtration should be interrupted when the slope of the tangential at the point of interest is 5 times greater than the slope for the initial linear section ... Filtration ... Filtration...

Please refer to chapter filters for a description of the technologies used in these filters; this only addresses parameters that have an impact on filtration. The water to be filtered percolates ... Filtration, Filters, Biofilters ... Filtration Filters Biofilters ... filtration through a granular bed...

screening and Micro-screening In fact, this is a relatively coarse filtration carried out through a thin sheet made of a metal or plastic fabric or of filtering elements that have regularly placed ... Filtration, Pulsator, Straining ... Filtration Pulsator Straining ... filtration throught a mechanical support...

/day. Sand filtration with air washing is the best adapted technology. Filtration rate: 15 to 20m/h depending on the type of solids to be retained. For our example, the choice of a sand filter (NES 0 ... Industrial water treatment, Sizing, Filtration, Sand filter ... Industrial water treatment Sizing Filtration Sand filter ... sizing a derived filtration...

The filtration process always comprises the following stages: flocculation using polyelectrolytes, in short contact time flocculators, or sometimes in the pipeline; flocculated sludge ... Filtration, Sludge treatment, Sludge dewatering, Flocculation ... Filtration Sludge treatment Sludge dewatering Flocculation ... belt filter filtration: principle...

, even after an adapted wash of the filter. key figures Filtration speed up to 50 m/h Longer filtration cycles : 3 – 5 times higher than with conventional process ... Filtration, Biolite, Ferazur, Mangazur, Nitrazur, Drinking water, Biological processes ... Filtration Biolite Ferazur Mangazur Nitrazur Drinking water Biological processes ... No chemical oxidant required No periodic regeneration of the filtration media Fast adaptation to the variation of raw water quality Natural process “BIOLITE” offering a high treated ... biological filtration – Ferazur® / Mangazur® / Nitrazur®...

the SDI (Silt Density Index) and therefore helps improve Reverse Osmosis (RO) membranes lifetime. key figure Filtration velocity up to 20 m/h among our references Al Dur ... Filtration, Clarification, Desalination, Seaclean, Filters ... Filtration Clarification Desalination Seaclean Filters ... Two layers of media to optimize the filtration quality ... pressurized multi-media filtration - Seaclean™ filter...

: coagulation, flocculation , separation, filtration. application : as direct filtration on low suspended solids water types for iron, manganese and ammonia removal (if limited concentration and under ... Filtration, Aquazur, Drinking water, Flocculation ... Filtration Aquazur Drinking water Flocculation ... downflow open sand filtration - Aquazur® V...

The operation of these filters is completely independent and automatic, in filtration and in wash modes. The water to be filtered comes from a header tank and, after filtration through a low ... Filtration, Filters ... Filtration Filters...

; rinsing water flow rate: 15 to 25 m3·h–1·m–2;* head loss at the end of the cycle: 0.2 to 1.5 bar. Layer depth will mainly be defined by the filtration rate and by the extent of the load of material ... Filtration, Filters ... Filtration Filters...

on the thickness of the filter layer and on filtration rate. Backashing relies exclusively on return water whose velocity has to be adjusted to the material’s granulometry and to the water’s viscosity and ... Filtration, Filters ... Filtration Filters...

The ABW® (Automatic BackWash) filters are sand filters where each «compartment» is washed automatically (see section filtration) ; these filters are used in drinking or process water production and ... Filtration, Filters ... Filtration Filters...

cycles Almost all granular material filters work in cycles that include a filtration period followed by a final wash. The essential parameter that restricts the duration of these cycles is head ... Filtration, Filters ... Filtration Filters...

sand: the head loss suffered by the filter before it is washed must be such that, when reduced to its value for an average filtration rate, it reaches the customary values of 1.75 to 2 metres ... Filtration, Filters ... Filtration Filters...

to upflow (backwashing) and downflow (filtration, rapid drainage) stresses; operation must remain sustainable without the need for any intervention. degremont® nozzle floors have been designed ... Filtration, Filters ... Filtration Filters...