Abstract
The performance and economics of four recently constructed or modified BNR municipal wastewater treatment plants located in the Chesapeake Bay Watershed, USA were evaluated, and compared to a treatment plant implementing chemical phosphorus removal and complete nitrification. Phosphorus removal has been very reliable to effluent concentrations below 0.5 mg/L without chemical addition or effluent filtration at BNR plants that have been operating for more than two years. Significant variation was observed in the wastewater characteristics, and this has affected biological phosphorus removal. Chemical precipitation effluent TP concentrations have averaged less than 0.1 mg/L. The small BNR plant was clearly the most costly to operate per 1000 m3/d of flow, which illustrates economy of scale. The chemical precipitation plant was generally more expensive to operate than the large BNR plants.
| Original language | English |
|---|---|
| Pages (from-to) | 21-28 |
| Number of pages | 8 |
| Journal | Water Science and Technology |
| Volume | 41 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2000 |
| Externally published | Yes |
| Event | 8th IAWQ International Conference on 'Design, Operation and Economics of Large Wastewater Treatment Plants' - Budapest, Hung Duration: 6 Sept 1999 → 9 Sept 1999 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation -
SDG 11 Sustainable Cities and Communities -
SDG 14 Life Below Water
Keywords
- Biological nutrient removal
- Cost
- Municipal wastewater treatment
- Performance
- Wastewater characterization
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