Download or read book Advances in Water and Wastewater Treatment Biological Nutrient Removal From papers presented in part at a conference on Biological Nutrient Removal Alternatives in Orlando FL March 1978 written by Wanielista MP. and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Water and Wastewater Treatment written by Conference on Biological Nutrient Removal Alternatives. 1978, Orlando, Fla.. and published by . This book was released on 1979 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Water and Wastewater Treatment Biological Nutrient Removal from Papers Presented in Part at a Conference on Biological Nutrient Removal Alternatives Held in Ontario Florida at Florida Technological University in March 1978 written by Martin P. Wanielista and published by . This book was released on 1978 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Nutrient Removal written by and published by . This book was released on 1978 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Water and Wastewater Treatment written by Martin P. Wanielista and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Nutrient Removal written by Martin P. Wanielista and published by . This book was released on 1978 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Water and Wastewater Treatment written by Westley W. Eckenfelder and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Water and Wastewater Treatment Biological Nutrient Removal written by Martin P. Wanielista and published by . This book was released on 1978 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Striking the Balance between Nutrient Removal in Wastewater Treatment and Sustainability written by J. B. Neethling and published by IWA Publishing. This book was released on 2011-12-15 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study focuses on sustainability impacts as wastewater treatment plants implement treatment technologies to meet increasingly stringent nutrient limits. The objective is to determine if a point of “diminishing returns” is reached where the sustainability impacts of increased levels of nutrient removal outweigh the benefits of better water quality. Five different hypothetical treatment trains at a nominal 10 mgd flow were developed to meet treatment targets that ranged from cBOD mode (Level 1) to four different nutrient removal targets. The nutrient removal targets ranged from 8 mg N/L; 1 mg P/L (Level 2) to the most stringent at 2 mg N/L; 0.02 mg P/L (Level 5). Given that sustainability is a broad term, the industry-accepted three pillars of sustainability were evaluated and discussed, and particular emphasis was placed on the environmental and economic pillars. The following variables received the most attention: greenhouse gas (GHG) emissions, a water quality surrogate that reflects potential algal growth, capital and operational costs, energy demand, and consumables such as chemicals, gas, diesel, etc. The results from the GHG emissions metric are shown below. Note that biogas cogeneration is represented by negative values as biogas production can be used to offset energy demands. The nitrous oxide (N2O) emissions values are based on the average biological nutrient removal (BNR) and non-BNR plants evaluated in the United States national survey by Ahn et al. (2010b). The error bars represent the data range of the national survey. div The GHG emissions results suggest that a point of diminishing return is reached at Level 4 (3 mg N/L; 0.1 mg P/L). The GHG emissions show a steady increase from Levels 1 to 4, followed by a 65% increase when moving from Level 4 to 5. Despite a 70% increase in GHGs, the discharged nutrient load only decreases by 1% by going from Level 4 to 5. The primary contributors to GHG emissions are energy related (aeration, pumping, mixing). The GHG emissions associated with chemical use increases for the more stringent nutrient targets that required chemical treatment in addition to biological nutrient removal. In terms of cost, the total project capital cost increases approximately one-third from $9.3 million to $12.7 million for changing from Level 1 to 2, followed by a more than doubling in cost when changing from Level 1 to 5. Total project capital costs in this report are for a Greenfield plant. The operational cost increase between levels is more pronounced than total project capital cost with more than five-times increase from Level 1 to 5 ($250/MG treated to $1,370/MG treated, respectively). /div This report focused on in-plant (point source) options for nutrient removal and the implications for cost and sustainability. Other approaches, such as addressing non-point sources, could be added to the assessment. Rather than focusing strictly on point source dischargers and requiring Level 4 or 5 treatments, Level 3 or 4 treatments complimented with best management practices of non-point sources might be a more sustainable approach at achieving comparable water quality.

Download or read book From Nutrient Removal to Recovery written by Marinus Cornelis Maria van Loosdrecht and published by IWA Publishing (International Water Assoc). This book was released on 2003 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Advances in Wastewater Treatment written by A. Dee and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book WEF WERF Study Quantifying Nutrient Removal Technology Performance written by Charles B. Bott and published by International Water Assn. This book was released on 2011 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The managers of 22 plants, 10 achieving low effluent TP, 9 achieving low effluent TN, and 3 achieving low effluent ammonia, were asked to provide 3 years of operational data that were analyzed using a consistent statistical approach. Technical papers were compiled for each plant including a summary of influent loading, process design and operating conditions, unusual events, upsets and anecdotes related to process operation, and the statistical summary of final effluent data that considered both process reliability and the permit limits applied.

Download or read book Nutrient Removal from Wastewaters written by Nigel J. Horan and published by CRC Press. This book was released on 1994-10-06 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in the book include: novel processes, removal of ammonia and nitrogen, retrofitting/upgrading treatment plants for nutrient removal, and operating experiences at full-scale plants. Nutrient removal from wastewaters is a critical topic in every region. Problems can arise from domestic sewage, industrial wastewater, or rainwater runoff.

Download or read book Nutrient Management in Wastewater Treatment Processes and Recycle Streams written by Jan A. Oleszkiewicz and published by . This book was released on 2006-01-01 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterizing Mechanisms of Simultaneous Biological Nutrient Removal During Wastewater Treatment written by P. F. Strom and published by IWA Publishing. This book was released on 2004-01-01 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Biological and Chemical Systems for Nutrient Removal written by Water Environment Federation. Task Force on Biological and Chemical Systems for Nutrient Removal and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special publication that discusses the method of utilizing a combination of biological and chemical processes to remove nitrogen and phosphorus in wastewater. Chapter topics include: overview of nutrient removal processes, chemical phosphorus removal, principles of biological nitrogen removal, principles of biological phosphorus removal, nitrification design, design of biological phosphorus removal processes, structured process models for biological nutrient control, nutrient removal by aquatic systems, testing and evaluation of full-scale nutrient removal facilities and costs for nutrient removal.

Download or read book Biological Nutrient Removal from Municipal Wastewater written by Zhirong Hu and published by Wiley. This book was released on 2020-05-27 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text offers a systematic review and summary on the development of biological nutrient removal (BNR) in fundamental research and practical applications. It provides the latest information about state-of-the-art BNR technology in wastewater treatment, including new filtration and membrane systems. This guide presents extensive coverage of several basic BNR biochemical processes (nitrification, denitrification, and EBPR), three types of BNR processes (conventional single sludge systems, recently developed two sludge systems, and MBR BNR systems), recently widely used process modeling and simulation technology, and key aspects of process design, operation, and control.