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Category Archives: Environnement

water quality checking

Drinking water purity checking We all agree that drinking water should be pure, uncolored and inodorous. But actually, drinking water purity (I mean quality) is based on regulation. Water quality is based on physico-chemical and microbiological parameters. Parameters to be considered are defined by the regulations in force. Microbiological parameters are the most important, as ... Read More »

State of contaminants species in water

Coagulants and alkalinity

Ci-dessous les caractéristiques de quelques coagulants commerciaux Nom chimique Sulfate d’aluminium Sulfate d’aluminium Sulfate ferrique 50% Sulfate ferrique 60% Polysilicate de sulfate d’aluminium Hydroxyde de chlorure de sulfate d’aluminium Hydroxyde de chlorure de sulfate d’aluminium chlorure d’aluminium   Nom commercial Alun sec Alun liquide     PASS 10 PAX XL10: PAX-XL6 Hyper+Ion® 1000 Formule chimique ... Read More »

Arsenic in raw water – Chemistry and treatments

Source – Arsenic (As) is not easily dissolved in water, therefore, if it is found in a water supply, it usually comes from mining or metallurgical operations or from runoff from agricultural areas where materials containing arsenic were used as industrial poisons. Arsenic and phosphate easily substitute for one another chemically, therefore commercial grade phosphate ... Read More »

Membrane systems equipments material

Tubing: PVC 80 / stainless steel 304 et 316 / Polypropylene Pumps: stainless steel 304 et 306 /Noryl /Brass Manual valves: stainless steel 304 et 316 / PVC 80 / Epoxy PID valves: stainless steel 304 Selenoïdes valves: stainless steel 304 et 316 / Brass / PVC Pressure sensors: stainless steel 304 / 306 Flowmeters sensors : Polyfluoroethylene (PTFE) / ... Read More »

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