E2.16 Avila 2018 ReNUWIt Annual Meeting Poster
Abstract/Contents
- Abstract
- Metro Wastewater Reclamation District (District) is currently undergoing extensive upgrades to the Robert W. Hite Facility (RWHTF) to meet increasingly stringent nutrient regulations, particularly focused on effluent discharge phosphorus (P). Infrastructure investments for nutrient removal are a significant capital expense for the District, but the capital expenditures must also take into account the long-term operating expenses associated with new process implementation. Enhanced biological phosphorus removal (EBPR) was determined to be a sustainable and cost effective means to remove P from the liquid stream. However the process has had negative impacts on other downstream processes. Anaerobic digestion of EBPR solids creates a high phosphorus recycle stream loading on the secondary activated sludge process that must be controlled to maintain effluent quality. The costs associated with biosolids dewaterability increase with EBPR, creating expenditure fluctuations that become an important focus area due to the high percentage of operating costs that the unit process represents. EBPR also significantly increases nuisance struvite precipitation in solids process facilities and equipment, increases the phosphorus to nitrogen ratio of land applied biosolids, and has potential impacts on emerging sidestream and solids treatment technologies. Resource recovery can assist in offsetting the costs associated with facility upgrades, operation, and maintenance that increase with improved effluent quality, and environmental protection.
Description
| Type of resource | other |
|---|---|
| Date created | May 2018 |
Creators/Contributors
| Author | Avila, Isaac |
|---|---|
| Author | Cavanaugh, Liam |
| Author | Wisdom, Blair |
| Author | McQuarrie, James |
| Author | Munakata Marr, Junko |
| Author | Figueroa, Linda |
Subjects
| Subject | Re-inventing the Nation’s Urban Water Infrastructure |
|---|---|
| Subject | ReNUWIt |
| Subject | E2.16 |
| Subject | Efficient Engineered Systems |
| Subject | Energy and resource recovery |
| Subject | Metro Wastewater Reclamation District |
| Subject | Colorado |
| Subject | dewatering mechanisms and methods |
Bibliographic information
| Related Publication |
Avila, I., Wisdon, B., Frandsen, C., Schroeder, A., Schermerhorn, Q., Figueroa, L., . . . Higgins, M. (2018). Lessons Learned from Assessment of Four Laboratory-Scale Sludge Dewaterability Methods Used During an Anaerobic Digestion Pilot Performed at the Robert W. Hite Treatment Facility. In Proceedings of the Water Environment Federation (Vol. 2018/4, pp. 224-241): Water Environment Federation.
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|---|---|
| Location | https://purl.stanford.edu/cq590xm3505 |
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- License
- This work is licensed under an Open Data Commons Attribution License v1.0.
Preferred citation
- Preferred Citation
- Avila, I., Cavanaugh, L., Wisdon, B., McQuarrie, J., Munakata Marr, J., & Figueroa, L. A. (2018). E2.16 Avila 2018 ReNUWIt Annual Meeting Poster. Stanford Digital Repository. Available at: https://purl.stanford.edu/cq590xm3505
Collection
Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt)
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- Contact
- junko@mines.edu
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