Merchandise
Showing all 7 results
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Poster 14×10, Higher Life Forms in the Activated Sludge Process
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Poster 36×24, Filamentous Organisms in the Activated Sludge Process
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Poster 36×24, Movement of Nitrogen and Phosphorus through a Biological Nutrient Removal (BNR) Treatment Process
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Poster 36×24, Protozoa as “Bio-indicators” of the “Health” of the Activated Sludge Process
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Poster 36×24, Significant Groups of Wastewater Bacteria and Archaea
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Poster 42×32, Movement of Nitrogen and Phosphorus through a Biological Nutrient Removal (BNR) Treatment Process
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Poster 42×32, Significant Groups of Wastewater Bacteria and Archaea