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- Alum Dosage (35 mg/L, 45 mg/L, 55 mg/L, 65 mg/L),
- Turbidity
- The Location of the alum addition (above water surface vs below water surface).
We are first testing the alum dosage to determine whether it is the cause of the film formation. We hypothesize that as the alum dosage increases there will be an increase in the formation of the surface film.
We also are testing to the effect of natural organic matter (NOM) on film formation. We hypothesize that as the turbidity of the water increases the film formation.
The film formation may not be due to the alum dosage or the turbidity, it may in fact be due to the location that the alum is added to the system. We hypothesize that the film formation will be greater when the alum is applied above to the surface of the water.
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