Chemical Forums
Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: kanankiri on December 15, 2009, 04:24:31 AM
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dear all,
I am currently designing a flocculation tank as a part of water treatment process for a gasification plant. The treated water has to be potable. I was looking all over internet to find the suitable dosage and found out that the added range of municipal water system is usually between 6-120ppm of alum (from certain gardening site). Can someone confirm the value? Please let me know the source as well.
thank you very much guys
regards, bernath
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Hello kanankiri,
The value for alum to flocculate materials in a system strongly depend on the type and concentration of contaminants.
The range for Alum is typically between 90-500 ppm. When treating clear water, then dosages between 6-120 can be used.
I hope this helps,
Eugene