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Chemical Treatment With Polymer, Powdered Activated Carbone And Zeolit

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#1 Pliz89


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Posted 07 March 2019 - 04:55 PM



I'm doing a pre-treatment using BB-DOE with 4 factors (polymer, powdered activated carbon, zeolite and mesh size) and 3 levels for each factor testing TSS, COD, Ammonia and Fecal Bacteria removal.


I realized that I have a few runs where the dose of Zeolite is zero (with variable doses of polymer, PAC and mesh size). For these runs, the level of ammonia increase (higher than Raw water level). I was wondering why that happens. I was thinking it is because I still have a high level of COD (ranged between 400 and 500 mg/L) that may affect ammonia removal. Could be that the reason why ammonia increase?


What other reasons could increase the ammonia level?



#2 thorium90


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Posted 09 March 2019 - 03:53 AM

I'm not sure how many people would be familiar with what is BB-DOE.

I'm not sure what you are pre-treating either.

Why is the dose of zeolite zero? Isn't the dose an operator controlled item? You can just pour more zeolite in and the dose is non-zero right?

How is the dose of the polymer and PAC variable? Isn't these doses an operator controlled item as well? You can just pour more stuff in no? What is actually controlling or restricting the doses?

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