Download or read book Technical and Economic Feasibility of Retrofitting Existing Municipal Wastewater Treatment Plants in Canada for Enhanced Biological Phosphorus Removal written by Canviro Consultants Ltd and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical and Economic Feasibility of Retrofitting Existing Municipal Wastewater Treatment Plants in Canada for Biological Phosphorus Removal written by Canviro Consultants Ltd and published by . This book was released on 1985 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Retrofitting Municipal Wastewater Treatment Plants for Enhanced Biological Phosphorus Removal written by Canviro Consultants Ltd and published by Environment Canada. This book was released on 1986 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This investigation addressed the technical and economic feasibility ofretrofitting existing Canadian municipal wasterwater treatment plants forenhanced biological phosphorus removal (EBPR). Various EBPR processes werereviewed briefly and the practicality of using these technologies compared toconventional chemical precipitation technology for removing phosphorus frommunicipal wastewaters was assessed. An attempt was made to identify thetype and size of existing treatment plants in Canada that would be mostamenable to retrofit for enhanced biological phosphorus removal. Costs werecompared for a number of EBPR alternatives and chemical precipitation. Thisstudy was not limited to a single specific plant, but was conducted inbroader context so that those conditions under which either chemical orenhanced biological phosphorus removal was more cost-effective could beidentified.
Download or read book Retrofitting Municipal Wastewater Treatment Plants for Enhanced Biological Phosphorus Removal written by Canada. Environment Canada. ENVIRONMENTAL PROTECTION SERVICE. and published by . This book was released on 1986 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environment Abstracts Annual written by and published by . This book was released on 1987 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: This database encompasses all aspects of the impact of people and technology on the environment and the effectiveness of remedial policies and technologies, featuring more than 950 journals published in the U.S. and abroad. The database also covers conference papers and proceedings, special reports from international agencies, non-governmental organizations, universities, associations and private corporations. Other materials selectively indexed include significant monographs, government studies and newsletters.
Download or read book Design Manual written by and published by . This book was released on 1987 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology Transfer Seminar on Biological Phosphorus Removal in Municipal Wastewater Treatment written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phosphorus Removal in Lower Great Lakes Municipal Treatment Plants written by Municipal Environmental Research Laboratory and published by . This book was released on 1980 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phosphorus Removal Within Existing Wastewater Treatment Facilities written by B. I. Boyko and published by Environmental Protection Service, Environment Canada. This book was released on 1976 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The various projects reported herein were undertaken to assist in the implementation of the Province of Ontario's phosphorus control program. Under this five-year program, phosphorus removal was to be initiated on the discharges of more than 170 existing wastewater treatment plants serving some five million persons. In order to implement this program, a methodology to predict the coagulant best suited for phosphorus removal at any particular treatment facility was required. It was also necessary to determine whether the chemicals used for phosphorus removal would have any physical or process effects on present wastewater treatment processes, facilities, methods of sludge treatment, and subsequent sludge disposal practices. This report discusses coagulation prediction and prime coagulant selection, and the operational results, problems and design considerations derived from a series of full scale studies. The study concluded that phosphorus removal may be readily implemented with minimal capital expenditure at operating municipal wastewater treatment facilities of all designs currently in use in Ontario.
Download or read book Evaluation of Phosphorus Removal recovery Processes During Municipal Wastewater Treatment written by Rania Bashar and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With growing emphasis on environmental and economic sustainability worldwide, modern municipal wastewater treatment plants (WWTPs) are striving to reduce consumption of resources and ensure increased recycling and reuse of nutrients and energy contained in the wastewater. In a trade-off between enhanced P removal (to meet stringent effluent limits) and increased resource (e.g., energy, chemical) usage, it is critical for the treatment plants to be able to select the most appropriate technology. To this end, this study has combined mathematical modeling and experimental data from recent literature to perform a comprehensive evaluation of established/emerging P recovery/removal technologies considering technical, economic and energy sustainability aspects. For technical evaluations, full-scale designs of high performing P removal technologies (e.g., Modified University of Cape Towne process, Bardenpho process, membrane bioreactors, IFAS-EBPR, struvite recovery, tertiary reactive media filtration) were developed and simulated using a widely-used Windows-based process model simulating software BioWin v. 5.3 (EnviroSim Associates Ltd., Canada). The treatment configurations were evaluated in terms of performance and cost effectiveness ($/lb of P removed). Results show that the unit cost for P removal in different treatment alternatives range from $42.22 to $60.88 per lb of P removed. The MUCT BNR+ tertiary reactive media filtration proved to be one of the most cost effective configurations ($44.04/lb P removed) delivering an effluent with total P (TP) concentration of only 0.05 mg/L. Although struvite recovery resulted in significant reduction in biosolids P, the decrease in effluent TP was not sufficient to meet very stringent discharge standards. Emerging low energy mainline (LEM) treatment layouts consisting of energy efficient and innovative technologies has the potential to improve the overall sustainability of WWTPs. To evaluate the LEM treatment schemes, a configuration consisting of fine screen pretreatment, anaerobic membrane bioreactor (AnMBR) for BOD and TSS removal, reactive filter media for adsorptive P removal, and cold partial nitritation/Anammox process for N removal was simulated using operational conditions that are typical for a mid-size WWTP in the US. Our simulation results indicated that the LEM scheme could reduce the net energy requirement for treatment by about 0.46 kWh/m3 (~ 94%) compared to a conventional activated sludge system. The removal efficiencies of TN, TP and TCOD in the effluent were 93%, 90% and 94%, respectively. One-at-a-time (OAT) sensitivity analysis indicated that dominant parameters controlling energy production and consumption include temperature, wastewater influent COD, and electric efficiency of combined heat and power (CHP) engine. The LEM treatment scheme reached a break-even point (energy-self-sufficiency) at 544 mg/L COD and 38% electric efficiency of the CHP engine. The OAT analysis was further expanded using global sensitivity analysis (GSA) techniques to identify the within parameter interactions. The GSA revealed CHP efficiency has a predominantly linear (non-interacting with other inputs) impact on the net energy requirement and has the potential to be a very good control parameter in achieving energy self-sufficiency. In addition, a solution space for energy-positive operation was also identified in this study where minimum non-linear interaction between input parameters is present. Therefore, operating the treatment plant within this linear region ensures maximum control over net energy requirement, while staying within the energy positive range. The results of this study will provide guidance for researchers, municipalities, government agencies and decision-makers, and other stake-holders in choosing the most appropriate P removal option that offer the possibility to move wastewater treatment towards a sustainable, energy- and resource-positive direction.
Download or read book Simultaneous Biological Nitrogen Removal and Electrochemical Phosphorus Recovery from Municipal Wastewater written by Damian Jakub Kruk and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of the study was to develop a partial nitrification/anammox electrically assisted struvite yield membrane bioreactor (PN/A EASY MBR) with simultaneous phosphorus recovery for treatment of municipal wastewater. The research was conducted in four separate experiments evaluating the feasibility of electrochemical phosphorus recovery, impact of electric current on nitrifying and anammox bacteria, and long term anammox performance at low temperature. The EASY method based on the magnesium dissolution from a sacrificial anode was found to be very effective in recovery of high-quality struvite even from fermented waste activated sludge from a wastewater treatment plant that does not practice enhanced biological phosphorus removal. Effects of short and long term exposure of nitrifying biomass to direct current were investigated using inert graphite electrodes. Both short and long term exposure kinetic tests indicated that the activity of ammonia oxidizing bacteria was slightly inhibited with almost linear decline, whereas the activity of nitrite oxidizing bacteria was stimulated. The trends of relative activity changes exhibit a high correlation to the electric current applied per mass of volatile suspended solids. Low temperatures are one of the main obstacles to implementation in the main stream. In this study the impact of long-term exposure to a temperature of 10°C on the anammox process was investigated. Quantitative PCR was used to follow the population dynamics of different strains of anammox bacteria. Results of the investigation of the electric current impact on anammox activity provided evidence that simultaneous anammox and electrochemical processes is not a feasible approach. However, the study provided a novel method of phosphorus recovery available also for non-EBPR plants, which can be applied in the mainstream process simultaneously with conventional nitrification. The study of anammox at low temperature generated valuable insights for development of mainstream anammox treatment.
Download or read book Phosphorus Removal Efficiency Upgrading at Municipal Wastewater Treatment Plants in the Great Lakes Basin written by Canada-Ontario Agreement on Great Lakes Water Quality and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Innovative Wastewater Treatment Resource Recovery Technologies Impacts on Energy Economy and Environment written by Juan M. Lema and published by IWA Publishing. This book was released on 2017-06-15 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the 3R concept applied to wastewater treatment and resource recovery under a double perspective. Firstly, it deals with innovative technologies leading to: Reducing energy requirements, space and impacts; Reusing water and sludge of sufficient quality; and Recovering resources such as energy, nutrients, metals and chemicals, including biopolymers. Besides targeting effective C,N&P removal, other issues such as organic micropollutants, gases and odours emissions are considered. Most of the technologies analysed have been tested at pilot- or at full-scale. Tools and methods for their Economic, Environmental, Legal and Social impact assessment are described. The 3R concept is also applied to Innovative Processes design, considering different levels of innovation: Retrofitting, where novel units are included in more conventional processes; Re-Thinking, which implies a substantial flowsheet modification; and Re-Imagining, with completely new conceptions. Tools are presented for Modelling, Optimising and Selecting the most suitable plant layout for each particular scenario from a holistic technical, economic and environmental point of view.
Download or read book Pollution Abstracts written by and published by . This book was released on 1987 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes material from conference proceedings and hard-to-find documents, in addition to journal articles. Over 1,000 journals are indexed and literature published from 1981 to the present is covered. Topics in pollution and its management are extensively covered from the standpoints of atmosphere, emissions, mathematical models, effects on people and animals, and environmental action. Major areas of coverage include: air pollution, marine pollution, freshwater pollution, sewage and wastewater treatment, waste management, land pollution, toxicology and health, noise, and radiation.
Download or read book An Economic Comparison of Chemical and Biological Phosphorus Removal Processes in a 10 MGD Municipal Wastewater Treatment Plant written by James David Sunta and published by . This book was released on 1987 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Implementing Enhanced Biological Phosphorous Removal in High Strength Wastewater written by Chang Hoon Ahn and published by . This book was released on 2004 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Phosphorus Removal written by Scott Landers and published by . This book was released on 2021 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
