Report On Biological Nutrient Removal Pilot Plant Studies At Redcliffe Wastewater Treatment Plant
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Author | : |
Publisher | : |
Total Pages | : 127 |
Release | : 1998 |
Genre | : Sewage |
ISBN | : |
Download Report on Biological Nutrient Removal Pilot Plant Studies at Redcliffe Wastewater Treatment Plant Book in PDF, Epub and Kindle
Author | : Syed R. Qasim |
Publisher | : |
Total Pages | : |
Release | : 1988* |
Genre | : Sewage |
ISBN | : |
Download Appendix to the Final Report Book in PDF, Epub and Kindle
Author | : Khaldoun Matouk |
Publisher | : |
Total Pages | : 452 |
Release | : 1987* |
Genre | : Sewage |
ISBN | : |
Download Pilot-plant Study on Biological Nutrient Removal at Village Creek Wastewater Treatment Plant Book in PDF, Epub and Kindle
Author | : Michel Davitt |
Publisher | : |
Total Pages | : 160 |
Release | : 1996 |
Genre | : Sewage |
ISBN | : |
Download Pilot Plant Studies of Biological Nutrient Removal Book in PDF, Epub and Kindle
Author | : Syed R. Qasim |
Publisher | : |
Total Pages | : 168 |
Release | : 1988* |
Genre | : Sewage |
ISBN | : |
Download Biological Nutrient Removal Phase II Pilot Plant Operation at Village Creek Wastewater Treatment Plant Book in PDF, Epub and Kindle
Author | : Future Manyumba |
Publisher | : |
Total Pages | : 384 |
Release | : 2006 |
Genre | : |
ISBN | : |
Download Biological Nutrient Removal Using a Large Pilot Plant Book in PDF, Epub and Kindle
Author | : Omar Alsaadi |
Publisher | : |
Total Pages | : 330 |
Release | : 1986 |
Genre | : Sewage |
ISBN | : |
Download Biological Nutrient Removal Studies on Village Creek Wastewater Treatment Plant Book in PDF, Epub and Kindle
Author | : Yu Feng |
Publisher | : |
Total Pages | : 500 |
Release | : 2007 |
Genre | : |
ISBN | : |
Download Investigation of biological nutrient removal from a weak domestic wastewater in a flexible pilot-plant Book in PDF, Epub and Kindle
Author | : P. F. Strom |
Publisher | : IWA Publishing |
Total Pages | : 104 |
Release | : 2004-01-01 |
Genre | : Science |
ISBN | : 1843397056 |
Download Characterizing Mechanisms of Simultaneous Biological Nutrient Removal During Wastewater Treatment Book in PDF, Epub and Kindle
Simultaneous biological nutrient removal (SBNR) is the removal of nitrogen and/or phosphorus in excess of that required for biomass synthesis in biological wastewater treatment systems where there are no defined anaerobic and/or anoxic zones. The hypothesis is that one or more of three mechanisms is responsible within individual systems: variations in the bioreactor macroenvironment created by the mixing pattern, gradients within the floc microenvironment, and/or novel microorganism activity. Understanding of the mechanisms of SBNR can be expected to lead to improved efficiency and reliability in its application. Preliminary work documented SBNR in 7 full-scale OrbalTM closed loop bioreactors. A batch assay demonstrated that novel microorganism activity was of little importance in SBNR at the three plants tested. While the floc microenvironment likely plays an important role in nitrogen removal in such plants, it cannot explain phosphorus removal. A computational fluid dynamics (CFD) model was developed to elucidate the role of the bioreactor macroenvironment in SBNR. This is the first reported application of CFD to activated sludge biological wastewater treatment. Although the software and computational requirements limited model complexity, it still simulated the creation of dissolved oxygen gradients within the system, demonstrating that the anaerobic zones required for SBNR could occur.
Author | : Rachel Stewart |
Publisher | : |
Total Pages | : 0 |
Release | : 2023 |
Genre | : |
ISBN | : |
Download How Low Can You Go? Book in PDF, Epub and Kindle
Increasing energy costs and climate change necessitate an optimization of energy use at wastewater treatment plants for a sustainable future. Aeration within the biological nutrient removal (BNR) process accounts for a large portion of energy consumption at a wastewater treatment plant. As such, reducing the aeration input is considered a primary solution to reducing the energy required for wastewater treatment. While successful BNR at lower than conventional dissolved oxygen (DO) concentrations has been demonstrated, challenges remain before reduced aeration can be implemented at full-scale. In Chapter 1, we first compared two automated aeration control strategies under low-DO conditions in two pilot-scale treatment systems. We showed that effective, year-round BNR can be achieved with both strategies by increasing the solids retention time. However, both pilot-scale processes experienced poor solids settleability during the winter. While settleability was recovered during warmer temperatures, improving settling quality under low-DO remains a challenged to be resolved. In Chapter 2, we investigated the short- and long-term effect of DO reductions on the production and emission of nitrous oxide, a potent greenhouse gas. We found that while increases in nitrous oxide production and emission immediately followed DO reductions, long-term emissions decreased after prolonged operation under low-DO conditions. Process nuisances and performance deviations (e.g. nitrite accumulation) also corresponded with increased emissions. Finally, in Chapter 3, we used genome-resolved metagenomics and metatranscriptomics to explore the diversity and dynamics of the Candidatus Accumlibacter lineage, key organisms contributing to phosphorus removal from wastewater. We found that Accumulibacter community was highly diverse across time in multiple pilot-scale low-DO systems, supporting evidence that most members of this lineage have a high affinity for oxygen. The information gained in these studies expands on the feasibility and implications of low-DO wastewater treatment at full-scale and adds to our understanding of the microbial community carrying out BNR under these conditions.