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Author : David L. Sedlak
Publisher :
ISBN 13 : 9781780401386
Total Pages : pages
Book Rating : 4.4/5 (13 download)
Download or read book Uptake by Algae of Dissolved Organic Nitrogen from BNR Treatment Plant Effluents written by David L. Sedlak and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Elif Pehlivanoglu
Publisher :
ISBN 13 :
Total Pages : 342 pages
Book Rating : 4.:/5 (35 download)
Download or read book The Fate of Wastewater-derived Dissolved Organic Nitrogen in the Aquatic Environment written by Elif Pehlivanoglu and published by . This book was released on 2004 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Heonseop Eom
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (945 download)
Download or read book Investigation of Effluent Nitrogen Derived from Conventional Activated Sludge (CAS) and Biological Nutrient Removal (BNR) Systems and Its Impact on Algal Growth in Receiving Waters written by Heonseop Eom and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research was to evaluate the effects of effluent nitrogen from conventional activated sludge (CAS) and biological nutrient removal (BNR) processes on eutrophication in receiving estuaries. To investigate differences in effluent nitrogen from CAS and BNR processes, lab-scale wastewater treatment systems having identical influent were operated under controlled conditions. This reactor study showed that the BNR system decreased nitrogen discharge by removing dissolved inorganic nitrogen (DIN) from wastewater but generated more effluent dissolved organic nitrogen (DON) than did the CAS system. The transition of treatment conditions from anoxic to oxic within the BNR process facilitated the production of low molecular weight dissolved organic nitrogen (LMW DON), causing the BNR effluent to contain more DON than the CAS effluent. Moreover, analysis of data from a local full-scale plant (the Amherst WWTP) confirmed that when the wastewater treatment mode was converted from CAS to BNR, the effluent DIN decreased but effluent DON increased. Bioassays, incubated with effluent and natural estuary water (Long Island Sound water), were conducted to compare algal growth stimulated by CAS and BNR effluents. The results demonstrated that the BNR effluent, despite containing less dissolved total nitrogen (DTN), stimulated more algal biomass and higher nitrogen-based productivity than the CAS effluent. These unexpected outcomes were attributed to the greater potential of LMW DON to drive algal growth compared to DIN. Numerical analyses for algal growth yields for effluent nitrogen species illustrated that LMW DON had approximately 7 times higher yield than DIN. In conclusion, this research revealed that the BNR system generated more effluent LMW DON, which showed greater algal growth yield, supporting for more algal biomass generation in the bioassays than did the CAS system. These findings indicate that simply decreasing the amounts of effluent nitrogen cannot ensure alleviating algal blooms in receiving estuaries. To evaluate the actual influence of effluents on eutrophication, not only amounts but also compositions of effluent nitrogen should be considered.
Author : Jocelyn Cathryn Bowyer
Publisher :
ISBN 13 :
Total Pages : 213 pages
Book Rating : 4.:/5 (625 download)
Download or read book The Ecological Significance of Dissolved Organic Nitrogen from Wastewater Treatment Plant Effluents written by Jocelyn Cathryn Bowyer and published by . This book was released on 2004 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : VICENTE MIGUEL WITT
Publisher :
ISBN 13 :
Total Pages : 344 pages
Book Rating : 4.3/5 (91 download)
Download or read book NITROGEN AND PHOSPHORUS REMOVAL FROM SECONDARY SEWAGE PLANT EFFLUENTS BY ALGAE. written by VICENTE MIGUEL WITT and published by . This book was released on 1959 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A.M. Rada Ariza
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (796 download)
Download or read book Characterization and evaluation of the structure of dissolved organic nitrogen in the effluent of Harnaschpolder wastewater treatment plant written by A.M. Rada Ariza and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald W. Stanley
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.3/5 (121 download)
Download or read book Nitrogen Recycling in the Chowan River written by Donald W. Stanley and published by . This book was released on 1976 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nitharsan Kanapathippillai
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (99 download)
Download or read book Nutrient-removal from Wastewaters written by Nitharsan Kanapathippillai and published by . This book was released on 2014 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reduction of nitrogen present in urban wastewater to an environmentally supportable level is essential since excess discharge of nitrogen to receiving waters would lead to several environmental and health risks. Publicity owned treatment works (POTWs), which are originally designed for organic carbon removal in the wastewater, are now being required to remove nutrients such as nitrogen as well from the wastewater to meet stringent effluent discharge standards. Even though many POTWs have adopted biological nutrient removal (BNR) processes for doing so, they are energy-intensive. In parallel to the ongoing research at NMSU in developing algal systems as an energy-efficient pathway for biofuel production, this study was undertaken to assess the feasibility of algal systems in nitrogen removal from urban wastewater. In contrast to the traditional energy-intensive nitrogen removal processes that dissipate the valuable carbon and nitrogen in the wastewaters into the environment as gaseous carbon dioxide and nitrogen, the algae-based approach can capture the energy in the wastewater as well as solar energy to generate energy-rich biomass. Further, the algal approach eliminates the aeration energy consumed by current aerobic technologies that demand dissolved oxygen. As a result, the algal approach has the potential to yield higher positive energy of about 16 kWh per kg of N removed. This study to assess the nutrient removal potential of the algal system was done in two parts. In the first part, the algal approach is compared against the traditional nitrification-denitrification process and emerging biological nutrient removal (BNR) processes such as ANNAMOX, CANON, Aerobic Deammonification, and DEAMOX on the basis of net energy per unit mass of nitrogen removed. In the second part of the study, a mathematical model was developed to predict biomass densities and nitrogen removal by algae for use in the on-going algal research work at NMSU in process optimization and scale up. The model was calibrated with experimental data from Galdieria sulphuraria and validated using data obtained under a range of initial biomass and nitrogen levels. The energy comparisons confirmed the premise that the algal-approach is more energy-efficient than the traditional and emerging BNR technologies. Predictions of biomass concentrations and nitrogen removal by the model developed in this study agreed well with the temporal trend of the experimental data with r2 ranging from 0.82 to 0.99. A sensitivity analysis of the seven model parameters used in this study revealed that, only two of them were significant for each profile, with sensitivity coefficients ranging from 0.0005 to 0.002 for biomass concentration, and 0.027 to 0.036 for dissolved nitrogen concentration.
Author : William Edwin Miller
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Selenastrum Capricornutum Printz Algal Assay Bottle Test written by William Edwin Miller and published by . This book was released on 1978 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chakkrid Sattayatewa
Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.:/5 (32 download)
Download or read book Dissolved Organic Nitrogen in Wastewater Effluents written by Chakkrid Sattayatewa and published by . This book was released on 2008 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : ScholarlyEditions
ISBN 13 : 1490106715
Total Pages : 1124 pages
Book Rating : 4.4/5 (91 download)
Download or read book Issues in Environmental Economics, Engineering, and Technology: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Environmental Economics, Engineering, and Technology: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Environmental Economics. The editors have built Issues in Environmental Economics, Engineering, and Technology: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Environmental Economics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Environmental Economics, Engineering, and Technology: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author : Shuhua Hu
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (387 download)
Download or read book The Effects of Irradiance on Nitrate Uptake and Dissolved Organic Nitrogen Release by Phytoplankton in the Ross Sea written by Shuhua Hu and published by . This book was released on 1996 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Catherine E. Bayliss
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)
Download or read book Investigating the Bioavailability of Dissolved Organic Nitrogen Using Freshwater Algae written by Catherine E. Bayliss and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Y. COLLOS
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (77 download)
Download or read book Production of dissolved organic nitrogen during uptake of nitrate by Synedra planctonica written by Y. COLLOS and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christian Schaum
Publisher : IWA Publishing
ISBN 13 : 1780408358
Total Pages : 592 pages
Book Rating : 4.7/5 (84 download)
Download or read book Phosphorus: Polluter and Resource of the Future written by Christian Schaum and published by IWA Publishing. This book was released on 2018-03-15 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive book provides an up-to-date and international approach that addresses the Motivations, Technologies and Assessment of the Elimination and Recovery of Phosphorus from Wastewater. This book is part of the Integrated Environmental Technology Series.
Author : Mogens Henze
Publisher : IWA Publishing (International Water Assoc)
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (4 download)
Download or read book Biological Wastewater Treatment written by Mogens Henze and published by IWA Publishing (International Water Assoc). This book was released on 1881 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: For information on the online course in Biological Wastewater Treatment from UNESCO-IHE, visit: http://www.iwapublishing.co.uk/books/biological-wastewater-treatment-online-course-principles-modeling-and-design Over the past twenty years, the knowledge and understanding of wastewater treatment have advanced extensively and moved away from empirically-based approaches to a first principles approach embracing chemistry, microbiology, physical and bioprocess engineering, and mathematics. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation with computers. For a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access is not readily available to advanced level tertiary education courses in wastewater treatment. Biological Wastewater Treatment addresses this deficiency. It assembles and integrates the postgraduate course material of a dozen or so professors from research groups around the world that have made significant contributions to the advances in wastewater treatment. The book forms part of an internet-based curriculum in biological wastewater treatment which also includes: Summarized lecture handouts of the topics covered in book Filmed lectures by the author professors Tutorial exercises for students self-learning Upon completion of this curriculum the modern approach of modelling and simulation to wastewater treatment plant design and operation, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks or biofilm systems, can be embraced with deeper insight, advanced knowledge and greater confidence.
Author : John Bratby
Publisher : IWA Publishing
ISBN 13 : 1843391066
Total Pages : 421 pages
Book Rating : 4.8/5 (433 download)
Download or read book Coagulation and Flocculation in Water and Wastewater Treatment written by John Bratby and published by IWA Publishing. This book was released on 2006-10-15 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coagulation and Flocculation in Water and Wastewater Treatment provides a comprehensive account of coagulation and flocculation techniques and technologies in a single volume covering theoretical principles to practical applications. Thoroughly revised and updated since the 1st Edition it has been progressively modified and increased in scope to cater for the requirements of practitioners involved with water and wastewater treatment. A thorough gamut of treatment scenarios is attempted, including turbidity, color and organics removal, including the technical aspects of enhanced coagulation. The effects of temperature and ionic content are described as well as the removal of specific substances such as arsenic and phosphorus. Chemical phosphorus removal is dealt with in detail, Rapid mixing for efficient coagulant utilization, and flocculation are dealt with in specific chapters. Water treatment plant waste sludge disposal is dealt with in considerable detail, in an Appendix devoted to this subject. Invaluble for water scientists, engineers and students of this field, Coagulation and Flocculation in Water and Wastewater Treatment is a convenient reference handbook in the form of numerous examples and appended information.
