modelling of coagulant dosage in a water treatment plant

Modelling of coagulant dosage in a water treatment plant

The coagulation-flocculation is a major step in the drinkable water treatment process allowing the removal of colloidal particles. The water treatment facilities of the City of Sainte-Foy have been well instrumented and process variables such as temperature, pH, turbidity, conductivity of raw and treated water along with actual coagulant dosage available have been measured and stored each 5

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characteristics of polyaluminum chloride (pac) coagulant

Characteristics of Polyaluminum Chloride (PAC) Coagulant

In water treatment, coagulation is an essential process for the removal of fine particulate matter (Gao, et al., 2002). Polyaluminum chloride (PAC) coagulant has been proven to be an effective coagulant for the removal of certain contaminants, turbidity and color. PAC coagulant has been developed and used in wa-

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coagulation monitoring in surface water treatment facilities

Coagulation monitoring in surface water treatment facilities

Coagulant dosing is traditionally determined according to results from jar-tests or operator's experience, which often lead to overdosing or insufficient dosing. In this study, the feasibility of applying an optical monitoring technique to determine chemical dosage and to monitor the coagulation performance in water treatment plants were assessed.

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potential of natural flocculant in coagulation

Potential of Natural Flocculant in Coagulation

When St-g-PAA is used as a coagulant aid for polyaluminum chloride (PAC) in the flocculation of a real hairwork wastewater, the highest reduction of the optimal PAC dose is more than 30% while the

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how the pam works with pac in water treatment

How the PAM works with PAC in water treatment

Polyacrylamide PAM and PAC PAC is mainly used in urban drainage purification, industrial water purification, sewage treatment and other urban areas. Good PAC flocculation effect; PAM coagulant role plays, allowing the formation of PAC alum conglomerate like help precipitate, generally with the use of PAC and PAM, PAM added after the first plus PAC.

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using polyaluminium coagulants in water treatment


Polyaluminium chloride (PACl), Aluminium chlorohydrate (ACH), Coagulants, Water Treatment 1.0 INTRODUCTION Alum (aluminium sulphate) is the most commonly used coagulant in Australian water treatment plants, low cost being its major attraction. Alum however, has a number of disadvantages: 鈾?limited coagulation pH range: 5.5 to 6.5,

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using a natural coagulant for treating wastewater


The optimum results obtained from treatment of the first mine-wastewater sample. This optimum results shows that, water clarity increased from 15 to 94.5 % with no colored water (6.3 times), chemical oxygen demand (COD) decreased from 35.5 to 8.2 mg/l (77 %), suspended solids decreased from 193 to 6.4 mg/l (96.68 %), pH increased from 2.9 to 7.8.

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aluminium coagulant - an overview | sciencedirect topics

Aluminium Coagulant - an overview | ScienceDirect Topics

Aluminium sulphate is the most widely used aluminium coagulant (Section 8.20). It is available in a number of solid grades such as block, kibbled or ground and is also available as a solution typically containing 8鈥?.3% w/w Al 2 O 3. In waterworks practice aluminium sulphate is frequently but incorrectly referred to as 鈥榓lum鈥?

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