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Nitrogen Transformations In A Simulated Overland Flow Wastewater Treatment System
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Book Synopsis Nitrogen Transformations in a Simulated Overland Flow Wastewater Treatment System by : Rex L. Chen
Download or read book Nitrogen Transformations in a Simulated Overland Flow Wastewater Treatment System written by Rex L. Chen and published by . This book was released on 1980 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treating wastewater in properly designed and operated overland flow systems results in significant amounts of N being removed through nitrification-denitrification reactions. Application of wastewater containing NH4(+)-N in a simulated overland flow model led to the disappearance of ammonium and the formation of nitrate in oxidized surface oil. The N balance in the simulated overland flow system was estimated by using labeled 15N. The amount of N removed in the system depends upon denitrification rates. The results of this study indicated that N adsorption on the soil complex and uptake of applied ammonium by vegetation accounted for the N removed in the overland flow systems. The adsorbed ammonium on the aerated surface soil mass was nitrified and converted to oxidized forms of N. The nitrate thus formed diffused downward to the reduced zone during subsequent wastewater applications. Some of this nitrate then denitrified and converted to gaseous forms of N or was assimilated and reduced by plant life. Results of the overland flow studies indicated that approximately 55-68% of wastewater NH4(+)-N added to the simulated overland flow system was unaccounted for in controlled laboratory environments and was presumably returned to the atmosphere.
Book Synopsis Nitrogen Transformations in a Simulated Overland Flow Wastewater Treatment System by : Rex L. Chen
Download or read book Nitrogen Transformations in a Simulated Overland Flow Wastewater Treatment System written by Rex L. Chen and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treating wastewater in properly designed and operated overland flow systems results in significant amounts of N being removed through nitrification-denitrification reactions. Application of wastewater containing NH4(+)-N in a simulated overland flow model led to the disappearance of ammonium and the formation of nitrate in oxidized surface oil. The N balance in the simulated overland flow system was estimated by using labeled 15N. The amount of N removed in the system depends upon denitrification rates. The results of this study indicated that N adsorption on the soil complex and uptake of applied ammonium by vegetation accounted for the N removed in the overland flow systems. The adsorbed ammonium on the aerated surface soil mass was nitrified and converted to oxidized forms of N. The nitrate thus formed diffused downward to the reduced zone during subsequent wastewater applications. Some of this nitrate then denitrified and converted to gaseous forms of N or was assimilated and reduced by plant life. Results of the overland flow studies indicated that approximately 55-68% of wastewater NH4(+)-N added to the simulated overland flow system was unaccounted for in controlled laboratory environments and was presumably returned to the atmosphere.
Book Synopsis Nitrogen and Phosphorus Reactions in Overland Flow of Wastewater by :
Download or read book Nitrogen and Phosphorus Reactions in Overland Flow of Wastewater written by and published by . This book was released on 1981 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of Nitrogen Behavior in Overland Flow Treatment by : Alma Luz Cedeno
Download or read book Modeling of Nitrogen Behavior in Overland Flow Treatment written by Alma Luz Cedeno and published by . This book was released on 1983 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simplified Model for Prediction of Nitrogen Behavior in Land Treatment of Wastewater by : H. M. Selim
Download or read book Simplified Model for Prediction of Nitrogen Behavior in Land Treatment of Wastewater written by H. M. Selim and published by . This book was released on 1980 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simplified model for simulation of nitrogen transformations and transport in land treatment of wastewater is presented. The purpose of the model is to predict the behavior of NH4-N and NO3-N in the soil profile in land treatment systems. The program is based on the solution of the transient soil water flow equation simultaneously with the equations describing the transformation, transport, and plant uptake of nitrogen in the soil. The program is valid for uniform as well as multilayered soil profiles and can be adapted to incorporate various nitrogen transformation mechanisms and boundary conditions. The model can be used as a tool to predict the fate of nitrogen in land treatment systems. Model sensitivity to changes in the rate of nitrification, ammonium ion exchange, and rate of plant uptake of nitrogen is also described. Description of the computer program, the program listing, and an example of input data and a two-week computer simulation of output data are presented. (Author).
Book Synopsis Nitrogen Transformations at the City of Davis Wastewater Treatment Plant and the Effect of Nitrate on Aquatic Organisms in the Receiving Stream by : Tiffany Ann Knapp
Download or read book Nitrogen Transformations at the City of Davis Wastewater Treatment Plant and the Effect of Nitrate on Aquatic Organisms in the Receiving Stream written by Tiffany Ann Knapp and published by . This book was released on 2002 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Operating Overland Flow Wastewater Treatment Systems for Nitrogen Removal by : John Roy Johnston
Download or read book Operating Overland Flow Wastewater Treatment Systems for Nitrogen Removal written by John Roy Johnston and published by . This book was released on 1991 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Removal in the Overland Flow Treatment of Wastewater by : Roger William Wright
Download or read book Nitrogen Removal in the Overland Flow Treatment of Wastewater written by Roger William Wright and published by . This book was released on 1982 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation of Nitrogen Movement, Transformation, and Uptake in Plant Root Zone by : James M. Davidson
Download or read book Simulation of Nitrogen Movement, Transformation, and Uptake in Plant Root Zone written by James M. Davidson and published by . This book was released on 1978 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CRREL Technical Publications by : Cold Regions Research and Engineering Laboratory (U.S.)
Download or read book CRREL Technical Publications written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1981 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Nitrogen Removal Rates and Mechanisms in Overland Flow Wastewater Treatment by : Andrew Phillip Kruzic
Download or read book A Study of Nitrogen Removal Rates and Mechanisms in Overland Flow Wastewater Treatment written by Andrew Phillip Kruzic and published by . This book was released on 1984 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen and Phosphorus Removal from Secondary Effluent Using the Overland Flow Process by : Linda Marie Rogalinski
Download or read book Nitrogen and Phosphorus Removal from Secondary Effluent Using the Overland Flow Process written by Linda Marie Rogalinski and published by . This book was released on 1988 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sustainable Wastewater Treatment Systems by : José Alberto Herrera-Melián
Download or read book Sustainable Wastewater Treatment Systems written by José Alberto Herrera-Melián and published by MDPI. This book was released on 2020-12-28 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is one of the main concerns of modern societies. Climate change will significantly complicate access to quality water for millions of people worldwide and the threat of contamination of aquatic resources by poor wastewater management is real and growing fast. Therefore, there is an urgent need to develop efficient and sustainable wastewater treatment methods. Although there are numerous water treatment methods, not all of them are equally sustainable, be it environmentally, economically or ethically. For this book, some of the latest advances in sustainable wastewater treatments were collected and 13 articles selected. The selected articles deal with aspects such as the removal of nanoparticles, the applicability of constructed wetlands, the recovery/removal of wastewater, the use of low-cost bio-sorbents, the optimization of activated sludge, the application of advanced oxidation technologies, and the modeling of reverse osmosis systems. This book will give the reader an idea of the latest trends in the sector of sustainable wastewater treatment.
Book Synopsis Report summaries by : United States. Environmental Protection Agency
Download or read book Report summaries written by United States. Environmental Protection Agency and published by . This book was released on 1983 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abiotic Nitrogen Removal Mechanisms in Rapid Infiltration Wastewater Treatment Systems by : Mark R. Matsumoto
Download or read book Abiotic Nitrogen Removal Mechanisms in Rapid Infiltration Wastewater Treatment Systems written by Mark R. Matsumoto and published by . This book was released on 2004 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid infiltration (RI) land treatment process is a reliable, cost effective method for secondary and/or tertiary treatment of municipal wastewaters. When properly designed and operated, RI systems can achieve a significant level of nitrogen removal via coupled biological processes, namely nitrification-denitrification. Generally, it is believed that lower overall nitrogen levels can be achieved when influent wastewater is fully nitrified. However, at a specific RI facility located in Colton, CA higher nitrogen removals were observed when non-nitrified influent wastewaters were introduced. As a result, it was first hypothesized that an abiotic mechanism, ammonium adsorption, to the soils was occurring. This hypothesis, led to the conduct of an initial effort to evaluate the sorptive phenomenon that was occurring at this site. As a result of that initial effort, it was determined that ammonium adsorption was not occurring and that no nitrogen removal was observed under abiotic (sterile) conditions. Nitrogen removal was observed only under biotic conditions. Subsequent to that initial effort, a second study was conducted in an effort to confirm and better understand the biological nitrogen removal mechanisms that are occurring at the Colton RI facility. In addition, experiments were conducted to evaluate whether nitrogen removal could be enhanced at the facility via organic carbon amendment to the influent wastewater. For design purposes, a 2:1 mass ratio of organic carbon to nitrogen is recommended for nitrogen removal in RI systems. The normal organic carbon to nitrogen ratio at the Colton RI facility is 1:3, highly organic carbon deficient. Experimental systems were amended with additional organic carbon in the form of methanol. Additional organic carbon in the Colton RI facility influent water may improve the denitrification rate within some portions of the soil column.
