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A Comparative Review of Biological Phosphorus Removal (BPR) Wastewater Treatment Technologies Used in Minnesota

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In the near future it appears that lower permit limits for total phosphorus (TP) removal will be applied to almost all municipal wastewater treatment facilities (WWTF) in the state of Minnesota. As such, the communities affected will be considering and reviewing which phosphorus removal technologies can be used at their WWTF to meet their new phosphorus limits.

The focus of this paper is to provide a comparative review of three case study examples of the three most common wastewater treatment technologies used for biological phosphorus removal (BPR) in Minnesota. The direct comparison of the three case study examples was performed to identify advantages and disadvantages of each BPR technology with respect to each other based on quantitative criteria. The quantitative criteria used for the comparison included; land area, effluent quality, power requirements, chemical demand, labor and operations, sludge production, and capital cost. The ultimate goal of the study was to show under what circumstances each technology might be selected. The results of the comparison showed that each of the three BPR technologies had certain advantages over each other for the criteria used and that no single technology stood out as an overall preferred process.
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Document Type: Research Article

Publication date: 2008-01-01

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