it is unacceptable to the treatment plant. In such a case, pumping from the surface water source can be suspended and the stored water supply used, thereby preventing any interruption in production. The storage volume ... Potable water ... Drinking water Surface water ... raw water storage...

operating principle: coagulation-floculation & clarification : Accelerated separation of the water and flocs by passing them through lamellar modules. Sludge is collected at the bottom ... Potable water ... Drinking water Surface water Clarification Sand filtration Coagulation-flocculation ... Elimination of suspended solids and colloidal particles Water treated in accordance with current drinking water standards ... Surface water and groundwater...

operating principle : Coagulation-flocculation: Addition of a coagulant and passage of the water through a double coagulation compartment, followed by a hydraulic flocculation chamber ... Desalination Potable water ... Aquadaf Drinking water Surface water Flotation Phosphorous removal Filters Coagulation-flocculation ... • Aquadaf technology • Surface water ...

chamber equipped with a vacuum pump and an automatic system for pressure regulation. Entry of coagulated water into the contact chamber upstream of the vacuum chamber. Injection ... Potable water ... Drinking water Surface water Pulsatube Pulsazur Coagulation-flocculation ... Low energy consumption (0.5 kW for the largest model) Possibility of adding bilayer gravity filters Turbidity of filtered water in accordance with current drinking water standards ... • Pulsatube® and Pulsazur® technologies • Surface water...

, if the lake is sufficiently deep it is advisable to extract water at a depth between 30 and 35 m from the surface; where the level of illumination is sufficiently weak to ensure a limited plankton content ... Potable water ... Drinking water Surface water Pretreatments Grit removal Oil removal Screening ... water intake...

(VII). pre-oxidation using ozone When used for the pre-treatment of raw surface water, ozone, like CℓO2, prevents the formation of THM and other chlorinated derivatives. It will not oxidise ammonium but does ... Potable water ... Ozone Drinking water Surface water Preoxidation...

definition Disinfection is the final stage in drinking water treatment before its distribution. Disinfection is used to remove pathogenic micro-organisms from the water. However, it should be noted ... Potable water ... Ozone Drinking water Surface water Disinfection Chlorine Ultraviolet disinfection...

nature of the sludge Sludge produced from the treatment of raw water to render it potable comes from the extractions or blowdowns undertaken during sedimentation (or flotation), when this exists ... Potable water ... Densadeg Drinking water Surface water Sludge treatment Sludge thickening Flotation Pulsatube Aquazur PAC...

, including their nanofiltration variant, are alone capable of eliminating all pollutants that might be present in surface water; consequently, they can be regarded as the water specialist’s “ultimate weapon ... Potable water ... Nanofiltration Cristal Drinking water Surface water Membranes Sand filtration Ultrafiltration PAC...

Strictly speaking, this is not a special treatment system but merely a stage that can come: either upstream from conventional treatment (e.g. recharging the Dutch dunes aquifer with water from ... Potable water ... CAG Pulsator Aquazur Nitrazur Ozonation Drinking water Surface water Iron removal Chlorination...

The following applies not only to water in a state of eutrophication where these problems tend to dominate, but also, to a greater or lesser extent, to all surface waters where, at the very least ... Potable water ... Superpulsator Filtration Cristal Densadeg Ozone Drinking water Surface water Algae Flotation Settling GAC PAC...

general Having been the only stage of surface water treatment for a long time, clarification is increasingly becoming just a preliminary stage that is part of a more and more complex system ... Potable water ... Clarification Adsorption Pulsator Superpulsator Densadeg Drinking water Surface water Polishing Micropollutants Oxidation Carbazur Sand filtration GAC...

(see disinfection). filtration without reagents (figure 2 – line 2) When the raw water only contains relatively few, non-colloidal, suspended solids (as is very rarely the case with surface water ... Potable water ... Pulsator Turbocirculator Filtration Clarification Drinking water Surface water Grit removal Oil removal Aquazur Pulsatube Settling Flotation Settling tanks...