Download or read book Wastewater Treatment for Nutrient Removal and Reuse written by A. Annachhatre and published by International Water Assn. This book was released on 2004-01-01 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Reuse written by National Research Council and published by National Academies Press. This book was released on 2012-07-17 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding water reuse-the use of treated wastewater for beneficial purposes including irrigation, industrial uses, and drinking water augmentation-could significantly increase the nation's total available water resources. Water Reuse presents a portfolio of treatment options available to mitigate water quality issues in reclaimed water along with new analysis suggesting that the risk of exposure to certain microbial and chemical contaminants from drinking reclaimed water does not appear to be any higher than the risk experienced in at least some current drinking water treatment systems, and may be orders of magnitude lower. This report recommends adjustments to the federal regulatory framework that could enhance public health protection for both planned and unplanned (or de facto) reuse and increase public confidence in water reuse.

Download or read book International Conference on Wastewater Treatment for Nutrient Removal and Reuse 2004 ICWNR 04 written by International Water Association and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wastewater Treatment for Nutrient Removal and Reuse written by A. Annachhatre and published by IWA Publishing. This book was released on 2004-05-31 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: By the year 2025 many countries, particularly in Asia and Africa, will be water scarce. Hence, water reuse and recycle is unavoidable. On the other hand, in the developing countries, major water quality issues such as pollution by pathogens, organic matter pollution and eutrophication are primarily due to discharges of untreated or partially treated domestic or industrial effluents. This dilemma highlights the concept of wastewater treatment for nutrient removal and reuse, as it promotes nutrient recovery while making the treated wastewater suitable for reuse. Recent developments in biological processes for nitrogen and phosphorus removal as well as in appropriate technologies for integrated nutrient recovery have led to development of novel and innovative processes. Accordingly, the IWA International Specialized Conference on Wastewater Treatment for Nutrient Removal and Reuse (ICWNR ?04) focused primarily on recent developments in wastewater treatment processes with particular emphasis on nutrient removal and reuse. A total of 92 papers were presented in this conference on the range of topics such as novel processes for N and P removal, modeling, toxicity and inhibition, decentralized sanitation as well as appropriate technologies for integrated nutrient removal and reuse, and after peer review 43 have been chosen for these selected proceedings. With insights from researchers and practitioners from over 30 countries with diverse background ranging from environmental biotechnology to process engineering, these proceedings provide an excellent platform to review the recent developments and future prospects in this multi-disciplinary field.

Download or read book Wastewater Renovation and Reuse written by Frank M. D'Itri and published by Marcel Dekker. This book was released on 1977 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wastewater Engineering written by Metcalf & Eddy Inc. and published by McGraw-Hill Higher Education. This book was released on 2013-08-30 with total page 2049 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wastewater Engineering: Treatment and Resource Recovery, 5/e is a thorough update of McGraw-Hill's authoritative book on wastewater treatment. No environmental engineering professional or civil or environmental engineering major should be without a copy of this book - describing the rapidly evolving field of wastewater engineering technological and regulatory changes that have occurred over the last ten years in this discipline, including: a new view of a wastewater as a source of energy, nutrients and potable water; more stringent discharge requirements related to nitrogen and phosphorus; enhanced understanding of the fundamental microbiology and physiology of the microorganisms responsible for the removel of nitrogen and phosphorus and other constituents; an appreciation of the importance of the separate treatment of return flows with respect to meeting more stringent standards for nitrogen removal and opportunities for nutrient recovery; increased emphasis on the treatment of sludge and the management of biosolids; increased awareness of carbon footprints impacts and greenhouse gas emissions, and an emphasis on the development of energy neutral or energy positive wastewater plants through more efficient use of chemical and heat energy in wastewater. This revision contains a strong focus on advanced wastewater treatment technologies and stresses the reuse aspects of wastewater and biosolids.

Download or read book Wastewater Treatment and Reuse Theory and Design Examples Volume 2 written by Syed R. Qasim and published by CRC Press. This book was released on 2017-11-22 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will present the theory involved in wastewater treatment processes, define the important design parameters involved, and provide typical values of these parameters for ready reference; and also provide numerical applications and step-by-step calculation procedures in solved examples. These examples and solutions will help enhance the readers’ comprehension and deeper understanding of the basic concepts, and can be applied by plant designers to design various components of the treatment facilities. It will also examine the actual calculation steps in numerical examples, focusing on practical application of theory and principles into process and water treatment facility design.

Download or read book Clean Energy and Resource Recovery written by Vinay Kumar Tyagi and published by Elsevier. This book was released on 2021-11-10 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean Energy and Resource Recovery: Wastewater Treatment Plants as Bio-refineries, Volume 2, summarizes the fundamentals of various treatment modes applied to the recovery of energy and value-added products from wastewater treatment plants. The book addresses the production of biofuel, heat, and electricity, chemicals, feed, and other products from municipal wastewater, industrial wastewater, and sludge. It intends to provide the readers an account of up-to-date information on the recovery of biofuels and other value-added products using conventional and advanced technological developments. The book starts with identifying the key problems of the sectors and then provides solutions to them with step-by-step guidance on the implementation of processes and procedures. Titles compiled in this book further explore related issues like the safe disposal of leftovers, from a local to global scale. Finally, the book sheds light on how wastewater treatment facilities reduce stress on energy systems, decrease air and water pollution, build resiliency, and drive local economic activity.As a compliment to Volume 1: Biomass Waste Based Biorefineries, Clean Energy and Resource Recovery, Volume 2: Wastewater Treatment Plants as Bio-refineries is a comprehensive reference on all aspects of energy and resource recovery from wastewater. The book is going to be a handy reference tool for energy researchers, environmental scientists, and civil, chemical, and municipal engineers interested in waste-to-energy. - Offers a comprehensive overview of the fundamental treatments and methods used in the recovery of energy and value-added products from wastewater - Identifies solutions to key problems related to wastewater to energy/resource recovery through conventional and advanced technologies and explore the alternatives - Provides step-by-step guidance on procedures and calculations from practical field data - Includes successful case studies from both developing and developed countries

Download or read book Removal and Recovery of Nutrients from Wastewater in Urban and Rural Contexts written by Kevin Orner and published by . This book was released on 2019 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efforts to remove and recover nutrients from wastewater are motivated by the United Nations Sustainable Development Goals and the National Academy of Engineering Grand Challenges of Engineering. Of the seventeen Sustainable Development Goals (SDGs), multiple SDGs relate to managing nutrients in wastewater. SDG 6, which is to “ensure availability and sustainable management of water and sanitation for all,” contains targets that aim to improve water quality by reducing pollution, halve the amount of untreated wastewater released to the environment, and increase recycling and safe reuse of wastewater (UN, 2017). SDG 2 seeks to improve food security and SDG 12 seeks to sustainably manage natural resources. Similarly, the National Academy of Engineering Grand Challenges of Engineering highlight managing the nitrogen cycle and providing access to clean water (NAE, 2019). Centralized wastewater treatment plants (WWTPs) have historically been designed to remove nutrients (such as nitrogen and phosphorus) and other contaminants prior to discharge. Modern wastewater treatment practices integrate recovery of resources including nutrients, energy, and water. The many available technologies, coupled with competing priorities, can complicate community decision-making on the choice of technology and the scale at which to implement the technology (i.e. building, community, or city), as well as determining how new upstream treatment may affect existing downstream treatment. Technologies that recover energy or manage nutrients such as anaerobic digestion, struvite precipitation, and microbial fuel cells can be implemented at a variety of scales in urban settings and may also be viable for influent types such as agricultural waste. Therefore, the overall goal of this dissertation is to contribute to the achievement of multiple sustainable development goals through the removal and recovery of nitrogen and phosphorus from a variety of influents at a variety of scales. One type of decision-making tool that assists in the choice of nutrient management technologies is a House of Quality. I developed a tool based on the House of Quality that integrated multiple priorities at three scales in a sewershed and produced rankings that generally align with current wastewater treatment practice. Accordingly, top-ranked city-scale technologies are those commonly employed (e.g. A2O, oxidation ditch) that use the dissolved organic carbon present in the wastewater to drive denitrification. Similarly, conventional treatment (e.g. flush toilet connected to a sewer) is ranked highest at the building scale because of its easy maintenance, small footprint, and inoffensive aesthetics. However, future trends such as technology development will likely affect the technologies, weightings, and scores and therefore improve the ranking of novel and emerging technologies. This trend may be amplified by the implementation of test beds, which can provide opportunities to improve the technical characteristics of developing technologies while minimizing risk for municipalities. The House of Quality planning tool was utilized in an in silico case study to analyze nutrient management technologies at three scales across the Northwest Regional Water Reclamation Facility sewershed in Hillsborough County, FL. The study demonstrated that employing treatment technologies upstream from the centralized wastewater treatment (i.e. building-scale source separation and community-scale technologies) could reduce nitrogen loading to the mainstream treatment train by over 50%. Sidestream treatment (i.e. the liquid effluent of anaerobic digestion that typically recycles back to the beginning of the mainstream treatment process) has minimal impact in nitrogen reduction, but is effective in reducing phosphorus loading to the mainstream due to high quantities of phosphorus recycling back to the head of the plant. These results can inform decision-makers about which context-specific nutrient management technologies to consider at a variety of scales, and illustrate that sidestream technologies can be the most effective in reducing phosphorus loading while building- and community-scale technologies can be most effective in reducing nitrogen loading to the centralized treatment plant. Struvite precipitation and microbial fuel cells (MFCs) can be used in combination to manage nutrients and recover energy in sidestreams of centralized WWTPs. Because the liquid effluent from engineered struvite precipitation often contains high concentrations of total nitrogen, I constructed and demonstrated a fixed-film nitrification reactor and a two-chambered MFC to further reduce total nitrogen and recover energy. The primary benefit of the MFC in the technology demonstrated here is not its ability to produce energy, but rather its ability to remove additional nitrogen through nitritation and denitritation. The sidestream nutrient removal prevents nutrients from returning to mainstream treatment, reducing operational costs. Such improvements to wastewater treatment processes can facilitate the transition to the resource recovery facility of the future by becoming a net-energy producer while also achieving the simultaneous benefits of nutrient recovery/removal and reduced costs associated with mainstream treatment. Nutrients and energy can also be recovered in agricultural settings. In this dissertation I studied an agricultural waste treatment system comprising a small-scale tubular anaerobic digester integrated with a low-cost, locally produced struvite precipitation reactor. This study investigated two digesters that treated swine waste in rural Costa Rica. I also facilitated construction of a pilot-scale struvite precipitation reactor that was built on site using local labor and local materials for approximately $920. Local products such as bittern (magnesium source) and soda ash (base) allowed for the production of struvite, a fertilizer that can replace synthetic fertilizer for rural farmers. Liquid-phase concentrations of PO43-P and NH4+-N in agricultural wastewater increased by averages of 131% and 116%, respectively, due to release from the swine waste during anaerobic digestion. Despite this increase in liquid-phase concentrations, an average of 25% of total phosphorus and 4% of total nitrogen was removed from the influent swine manure through sedimentation in the digesters. During struvite precipitation, an average of 79% of PO43-P and 12% of NH4+-N was removed from the waste stream and produced a solid with percentages (mass basis) of Mg, N, P of 9.9%, 2.4%, and 12.8%, respectively, indicating that struvite (MgNH4PO4) was likely formed. The treatment system offers multiple benefits to the local community: improved sanitation, removal of nutrients to prevent eutrophication, recovery of struvite as a fertilizer, and production of a final effluent stream that is suitable quality to be used in aquaculture. These are examples of how, more generally, quantifying nutrient recovery from agricultural waste and understanding recovery mechanisms can facilitate progress toward multiple sustainable development goals by improving sanitation, promoting sustainable management of wastes and natural resources, improving food security, and supporting local ecosystems. Managing nutrients from a variety of influent types at different scales can contribute to the achievement of multiple sustainable development goals. Worldwide trends of population growth and resource depletion highlight the need for models to easily allow decision-makers the ability to understand the fate of nutrients and implement infrastructure accordingly.

Download or read book International Conference on Nutrient Recovery From Wastewater Streams Vancouver 2009 written by Ken Ashley and published by IWA Publishing. This book was released on 2009-04-30 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paperback + CD-ROM Closing the loop for nutrients in wastewaters (municipal sewage, animal wastes, food industry, commercial and other liquid waste streams) is a necessary, sustainable development objective, to reduce resource consumption and greenhouse gas emissions. Chemistry, engineering and process integration understanding are all developing quickly, as new processes are now coming online. A new "paradigm" is emerging, globally. Commercial marketing of recovered nutrients as "green fertilizers" or recycling of nutrients through biomass production to new outlets, such as bioenergy, is becoming more widespread. This exciting conference brings together various waste stream industries, regulators, researchers, process engineers and commercial managers, to develop a broad-based, intersectional understanding and joint projects for phosphorus and nitrogen recovery from wastewater streams, as well as reuse. Over 90 papers from over 30 different countries presented in this volume. This conference is sponsored by: • Metro Vancouver • Global Phosphate Forum • Stantec Consulting Ltd. • The Chartered Institution of Water and Environmental Management (CIWEM) • Ostara Nutrient Recovery Technologies, Inc. (ONRTI) • The University of British Columbia (UBC) • The United States Environmental Protection Agency (EPA) • The British Columbia Water and Wastewater Association (BCWWA) • The Canadian Society for Civil Engineering (CSCE) • The Ostara Research Foundation (ORF)

Download or read book Wastewater Treatment and Reuse by Land Application Summary written by Charles E. Pound and published by . This book was released on 1973 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Wastewater Treatment Recycling and Reuse written by L. Bonomo and published by IWA Publishing (International Water Assoc). This book was released on 1999-05-31 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in wastewater treatment research and practice are leading towards sound technical approaches for producing high quality effluent from wastewater; this offers a reliable new water source for various beneficial uses, from relatively simple agricultural irrigation, to the recycling of industrial process water, to complex potable water reuse schemes. Wastewater reclamation, recycling and reuse is thus closely linked to advanced wastewater treatment. However, opportunities for adopting technological innovations in reuse are particularly significant, because reclaimed water has economic value as a water supply. Furthermore, while the disposal of treated effluent is subject to stringent pollution control measures, water reuse can permit more flexibility in water quality management for beneficial purposes. These proceedings comprise 55 selected papers from the International Conference on Advanced Wastewater Treatment, Recycling and Reuse. The range of technologies includes: advanced physico-chemical treatment; advanced biological treatment, including biological nutrient removal; disinfection problems; membrane treatment; agricultural applications and natural treatment systems; and applications in the textile and tannery industries. More importantly, the strategic approach to sustainable water resources planning and development is emphasised throughout, with wastewater reclamation, recycling and reuse being considered as a key element of water resources management.

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 Understanding Water Reuse written by National Research Council and published by National Academies Press. This book was released on 2012-10-05 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: In communities all around the world, water supplies are coming under increasing pressure as population growth, climate change, pollution, and changes in land use affect water quantity and quality. To address existing and anticipated water shortages, many communities are working to increase water conservation and are seeking alternative sources of water. Water reuse- the sue of treated wastewater, or "reclaimed" water, for beneficial purposes such as drinking, irrigation, or industrial uses- is one option that has helped some communities significantly expand their water supplies. Understanding Water Reuse summarizes the main findings of the National Research Council report Water Reuse: Expanding the Nation's Water Supply Through Reuse of Municipal Wastewater. The report provides an overview of the options and outlook for water reuse in the United States, discusses water treatment technologies and potential uses of reclaimed water, and presents a new analysis that compares the risks of drinking reclaimed water to those of drinking water from traditional sources.

Download or read book Sustainable Treatment and Reuse of Municipal Wastewater written by Menahem Libhaber and published by IWA Publishing. This book was released on 2012-05-31 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many countries, especially in developing countries, many people are lacking access to water and sanitation services and this inadequate service is the main cause of diseases in these countries. Application of appropriate wastewater treatment technologies, which are effective, low cost (in investment and especially in operation and maintenance), simple to operate, proven technologies, is a key component in any strategy aimed at increasing the coverage of wastewater treatment. Sustainable Treatment and Reuse of Municipal Wastewater presents the concepts of appropriate technology for wastewater treatment and the issues of strategy and policy for increasing wastewater treatment coverage. The book focuses on the resolution of wastewater treatment and disposal problems in developing countries, however the concepts presented are valid and applicable anywhere and plants based on combined unit processes of appropriate technology can also be used in developed countries and provide to them the benefits described. Sustainable Treatment and Reuse of Municipal Wastewater presents the basic engineering design procedures to obtain high quality effluents by treatment plants based on simple, low cost and easy to operate processes. The main message of the book is the idea of the ability to combine unit processes to create a treatment plant based on a series of appropriate technology processes which jointly can generate any required effluent quality. A plant based on a combination of appropriate technology unit processes is still easy to operate and is usually of lower costs than conventional processes in terms of investment and certainly in operation and maintenance. Chapters in the book are organized in a practical and accessible way to: Demonstrate selected unit process of appropriate technology and provide the scientific basis, the equations and the parameters required to design the unit processes, with some innovations developed by the authors. Highlight design procedures for selected combined processes which are in use in developing countries. Propose an innovative Orderly Design Method (ODM), which is easy to follow by practicing engineers, using the equations and formulas developed, once the fundamentals of each unit and combined process have been established. Provide a numeric example for the basic design of each selected appropriate technology process for a city with a population of 20,000 using the ODM and an Excel program which will be provided to the readers for download from an online web page. This book is a valuable and practical resource for all wastewater treatment engineers in field and the operational managers of waste treatment facilities. Authors: Menahem Libhaber, PhD, Consulting Engineer to the World Bank and other institutions, Alvaro Orozco Jaramillo, MSc, Consulting Engineer to the World Bank, the Inter-American Development Bank, Biwater and other institutions in various countries.

Download or read book Decentralised Sanitation and Reuse written by Piet Lens and published by International Water Assn. This book was released on 2001-01-01 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decentralised Sanitation and Reuse provides a defi

Download or read book Improved Onsite Wastewater Disinfection and Nutrient Removal for Safe Discharge and Reuse written by Kun Liu and published by . This book was released on 2017 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cold temperature often reduces ammonia removal efficiency in wastewater treatment systems. Improving ammonia removal by warming biofilters in cold weather has not been tested yet. This study investigated two methods to warm biofilters: covering the biofilter surface with polyethylene films and covering the biofilter with insulation in a greenhouse. The results showed that both treatments significantly increased the biofilter temperature by 4 °C on average. However, ammonia removal was not improved correspondingly. Instead, both warming methods might pose negative impacts on biofilters. Anaerobic conditions were established within the covered filters which resulted in loss of ammonia removal capability. The ammonia removal performance of sand biofilter might be affected by many other factors other than just temperature.