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Deployment and Optimisation of a Pilot-Scale IASBR System for Treatment of Dairy Processing Wastewater
| Content Provider | MDPI |
|---|---|
| Author | Leonard, Peter Clifford, Eoghan Finnegan, William Siggins, Alma Zhan, Xinmin |
| Copyright Year | 2021 |
| Description | Increased pressure is being applied to industrial wastewater treatment facilities to adhere to more stringent regulations for the discharge of treated wastewater and to improve energy efficiency of the process. Nitrogen and phosphorous removal can be challenging to achieve efficiently, and in the case of phosphorous removal, can often necessitate the use of chemicals. There is a major drive globally to improve wastewater treatment infrastructure, whilst simultaneously reducing the carbon footprint of the process. The intermittently aerated sequencing batch reactor offers a modification of the well-known sequencing batch reactor process that can enable lower energy requirements than conventional sequencing batch reactor processes and can facilitate enhanced nutrient removal capacities. However, to date much of the previous literature has focused on relatively short laboratory-scale trials (often with synthetic wastewater) which may not be representative of larger scale system performance. This study explored the intermittently aerated sequencing batch reactor technology via a case-study deployment at a dairy production facility, in terms of treatment efficiency and energy efficiency with a focus on optimisation between phases. High treatment capacity and operational flexibility was achieved with $NH_{4}$-N removals averaging >89%, $PO_{4}$-P removal averaging >90% and total suspended solids removal averaging >97%. This research demonstrates the characteristics of intermittently aerated sequencing batch reactor technology at scale to effectively achieve biological nutrient removal. In addition, this study demonstrated that when effectively managed, energy savings and reductions in carbon emissions in the region of 36–68% are achievable through optimisation of reactor operation. |
| Starting Page | 7365 |
| e-ISSN | 19961073 |
| DOI | 10.3390/en14217365 |
| Journal | Energies |
| Issue Number | 21 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-11-05 |
| Access Restriction | Open |
| Subject Keyword | Energies Environmental Engineering Activated Sludge Aeration Biological Nitrogen Removal Biological Phosphorus Removal Dairy Processing Energy Efficiency Intermittently Aerated Sequencing Batch Reactor Sustainable Built Environment Waste Management Wastewater Treatment |
| Content Type | Text |
| Resource Type | Article |
