Download or read book Effect of Water Treatment Residuals on Growth and Phosphorus Removal by Plants Adapted for Vegetative Buffers in the Mid Atlantic United States written by Robert A. Eaton and published by . This book was released on 2002 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Residuals to Reduce Soil Phosphorous written by James DeWolfe and published by American Water Works Association. This book was released on 2006 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A report on the collaborative project of three water utilities (Pennsylvania American Water Company , Tulsa Metropolitan Utility Authority, and Denver Water) looking at managing water treatment residuals (WTRs) generated by drinking water treatment facilities. The goal is to exploit the unique characteristics of WTR for beneficial use, specifically to improve phosphorus management of agricultural lands by controlling the release of phosphorus.
Download or read book Water Treatment Residual and Vegetative Filter Strip Effects on Phosphorus Transport Dynamics written by Colleen H. Green and published by . This book was released on 2004 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Water Treatment Residuals Effects on Phosphorus in Soils Amended with Dairy Manure written by Collin Thomas Lane and published by . This book was released on 2002 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Phosphorus Removal Processes on Algal Growth written by Jan Scherfig and published by . This book was released on 1973 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Adaptations to Phosphate Deficiency written by Alex Joseph Valentine and published by Frontiers Media SA. This book was released on 2021-05-18 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphate is an essential mineral to all plants, and its availability in soils is an increasing challenge for agriculture. Phosphate is abundant in soils but its biological availability is often low due to the complexes that it forms with soil minerals and compounds. The biological availability of Phosphate is further reduced in acidic soils, which represent approximately 40% of earth’s arable agricultural lands. Agricultural systems compensate Phosphate deficiency with fertilizers coming from the mining of rock phosphate, which is estimated to exhaust within the next 50 years. For these reasons, Phosphate limitations in natural and agricultural ecosystems is going to become a global problem, and we urgently need to better understand how plants respond to Phosphate deficiency.
Download or read book Phosphorus Adsorption desorption of Water Treatment Residuals and Biosolids Co application Effects written by James Anthony Ippolito and published by . This book was released on 2001 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Sulphide on Enhanced Biological Phosphorus Removal written by Francisco Javier Rubio Rincon and published by CRC Press. This book was released on 2017-03-03 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enhanced biological removal of phosphorus (EBPR) is a popular process due to high removal efficiency, low operational costs, and the possibility of phosphorus recovery. Nevertheless, the stability of the EBPR depends on different factors such as: temperature, pH, and the presence of toxic compounds. While extensive studies have researched the effects of temperature and pH on EBPR systems, little is known about the effects of different toxic compounds on EBPR. For example, sulphide has shown to inhibit different microbial activities in the WWTP, but the knowledge about its effects on EBPR is limited. Whereas the sulphide generated in the sewage can cause a shock effect on EBPR, the continuously exposure to sulphide potentially generated in WWTP can cause the acclimatization and adaptation of the biomass. This research suggests that sulphate reducing bacteria can proliferate in WWTP, as they are reversibly inhibited by the recirculation of sludge through anaerobic-anoxic-oxic conditions. The research enhances the understanding of the effect of sulphide on the anaerobic-oxic metabolism of PAO. It suggests that the filamentous bacteria Thiothrix caldifontis could play an important role in the biological removal of phosphorus. It questions the ability of PAO to generate energy from nitrate respiration and its use for the anoxic phosphorus uptake. Thus, the results obtained in this research can be used to understand the stability of the EBPR process under anaerobic-anoxic-oxic conditions, especially when exposed to the presence of sulphide.
Download or read book Multiscale Assessment of Drinking Water Treatment Residuals as a Phosphorus Sorbing Amendment in Stormwater Bioretention Systems written by Michael Rick Ament and published by . This book was released on 2021 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioretention systems can reduce stormwater runoff volumes and filter pollutants. However, bioretention soil media can have limited capacity to retain phosphorus (P), and can even be a P source, necessitating P-sorbing amendments. Drinking water treatment residuals (DWTRs) have promise as a bioretention media amendment due to their high P sorption capacity. This research explores the potential for DWTRs to mitigate urban P loads using a combination of lab experiments, field trials, and an urban watershed model. In the laboratory portion of this research, I investigated possible tradeoffs between P retention and hydraulic conductivity in DWTRs to inform bioretention media designs. Batch isotherm and flow-through column studies demonstrated that DWTRs have high but variable P sorption capacities, which correlated inversely with hydraulic conductivity. Large column studies showed that when applied as a solid layer within bioretention media, DWTRs can restrict water flow and exhibit only partial P removal. However, mixed layers of sand and DWTRs were shown to alleviate flow restrictions and exhibit complete P removal. These results suggest that mixing DWTRs with sand is an effective strategy for achieving stormwater drainage and P removal goals. In the field portion of this research, I assessed the capacity of a DWTR-amended media to remove different chemical species of P from stormwater in roadside bioretention systems. I also explored whether DWTRs affect system hydraulics or leach heavy metals in the field. Significant reductions in dissolved P and total P concentrations and loads were observed in both the Control and DWTR media. However, the removal efficiency percentages (RE) of the DWTR cells were greater than those of the Control cells for all P species, and this difference increased substantially from the first to the second monitoring season. Furthermore, the DWTR used in this study was not shown to affect bioretention system hydraulics or to significantly leach heavy metals. These results indicate that DWTRs have potential to improve P retention without causing unintended consequences. In the third phase of this research, I used the EPA - Storm Water Management Model (SWMM) to assess the impacts of different bioretention P removal performances and infiltration capacities on catchment-scale P loads, runoff volumes, and peak flow rates. Model outputs, which measured the cumulative effects of widespread bioretention use, showed that both P removal performance and infiltration capacity (i.e., presence or absence of an impermeable liner) have major impacts on watershed P loads. Infiltrating bioretention systems showed the capacity to reduce urban P loads and stormwater volumes, even with media that exhibited low P removal. Notably, P-sorbing amendments can be a limited resource and infiltration is not feasible in all locations. These results therefore suggest that water quantity and quality goals can be effectively achieved through a mixture of infiltrating bioretention and strategic use of P-sorbing amendments. Together, this research shows that DWTRs have significant potential to improve P removal within bioretention systems, but that fine-scale processes (e.g., P sorption capacity, hydraulic conductivity) must inform media designs if bioretention systems are to effectively reduce catchment-scale P loads and eutrophication risks.
Download or read book Phosphorus Removal written by and published by . This book was released on 1973 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multifunctional Wetlands written by Nidhi Nagabhatla and published by Springer. This book was released on 2017-10-25 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how natural or constructed wetlands can be used to reduce pollution of freshwater and coastal ecosystems, while still preserving their biodiversity and ecological functions. Through a series of case histories described in 10 chapters in the monograph, the readers will gain an understanding of the opportunities, as well as the challenges associated with reducing point and non-point source pollution using natural, restored or constructed wetlands. The target audience will be water practitioners involved in projects utilizing integrated watershed management approaches to pollution abatement, as well as researchers who are designing projects focused on this topic.
Download or read book Evaluation of Water Treatment Residuals Application to Excessively Manured High Soil test Phosphorus STP Soils written by Teuku Alvisyahrin and published by . This book was released on 2004 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Process Design Manual written by and published by . This book was released on 1995 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Phosphorus Sources and Water Treatment Residuals WTR for Environmental and Agronomic Benefits written by Olawale Olusegun Oladeji and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensitivity analysis of the drafted Florida P Index model indicates that all nine variables in the model are important, and all variables fell into either medium or higher impact categories. Studies are needed into all variables in the P Index and the use of continuous ratings for the variables where possible. Use of more than 3 variables to account for wide spectrum of P-sources is recommended, and coefficients based on PWEP values of the sources should be considered.
Download or read book Urban Runoff Quality Management written by Water Environment Federation and published by ASCE Publications. This book was released on 1998-01-01 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual comprises a holistic view of urban runoff quality management. For the beginner, who has little previous exposure to urban runoff quality management, the manual covers the entire subject area from sources and effects of pollutants in urban runoff through the development of management plans and the design of controls. For the municipal stormwater management agency, guidance is given for developing a water quality management plan that takes into account receiving water use objectives, local climatology, regulation, financing and cost, and procedures for comparing various types of controls for suitability and cost effectiveness in a particular area. This guidance will also assist owners of large-scale urban development projects in cost-effectively and aesthetically integrating water quality control to the drainage plan. The manual is also directed to designers who desire a self-contained unit that discusses the design of specific quality controls for urban runoff.
Download or read book Drinking Water from Forests and Grasslands written by and published by . This book was released on 2000 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
