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Author: Nadeem A Khan
Publisher: IWA Publishing
ISBN: 9781789062618
Category : Science
Languages : en
Pages : 200
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Book Description
The features of hospital wastewater (HWW) are identical to domestic wastewater in general, but a subset of HWW includes toxic/nonbiodegradable/infectious contaminants. The hospital effluents include a wide range of chemicals utilized in medical, laboratory, and study settings, as well as patient excreta. Antibiotics, lipid inhibitors, among other medications and their metabolites are among the wastes. This book will help in understanding through the case studies from around the globe how to deal with HWW effectively, as well as help Governments to modify laws relating to it.
Author: Nadeem A Khan
Publisher: IWA Publishing
ISBN: 9781789062618
Category : Science
Languages : en
Pages : 200
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Book Description
The features of hospital wastewater (HWW) are identical to domestic wastewater in general, but a subset of HWW includes toxic/nonbiodegradable/infectious contaminants. The hospital effluents include a wide range of chemicals utilized in medical, laboratory, and study settings, as well as patient excreta. Antibiotics, lipid inhibitors, among other medications and their metabolites are among the wastes. This book will help in understanding through the case studies from around the globe how to deal with HWW effectively, as well as help Governments to modify laws relating to it.
Author: Paola Verlicchi
Publisher: Springer
ISBN: 3319621785
Category : Technology & Engineering
Languages : en
Pages : 254
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Book Description
This volume addresses hospital effluents in terms of their composition and the management and treatment strategies currently (being) adopted around the globe. In this context, one major focus is on pharmaceutical compounds: their observed concentration range, ecotoxicological effects, and the removal efficiency achieved by the different technologies. Another focus is on management strategies (dedicated hospital wastewater treatment, or a combined approach also involving urban wastewater) and currently adopted treatments to reduce the released pollutant load. Innovative and promising technologies under investigation at the lab and pilot scale are presented. A discussion of remaining knowledge gaps and future research requirements rounds out the coverage. The respective chapters, written by experts in the different fields, provide useful information for a broad audience: scientists involved in the management and treatment of hospital effluents and wastewater containing micropollutants, administrators and decision-makers, legislators involved in the authorization and management of healthcare structure effluents, and environmental engineers involved in the design of wastewater treatment plants, as well as newcomers and students interested in these issues.
Author: R. D. Tyagi
Publisher: Elsevier
ISBN: 0128217197
Category : Technology & Engineering
Languages : en
Pages : 670
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Book Description
Current Developments in Biotechnology and Bioengineering: Environmental and Health Impact of Hospital Wastewater narrates the origin (history) of pharmaceuticals discoveries, hospital wastewater and its environmental and health impacts. It covers microbiology of hospital wastewater (pathogens, multi-drug resistance development, microbial evolution and impacts on humans, animals, fish), advanced treatment options (including biological, physical and chemical methods), and highlights aspects required during hospital wastewater treatment processes. This book provides an amalgamation of all recent scientific information on hospital wastewater which is not available in the current literature. Introduces physical, chemical and molecular testing methods for the analysis and characterization of hospital wastewater Discusses the environmental impact and health hazards of hospital wastewater Describes the microbiological aspects of the hospital wastewater, like microbial community, metagenomics, pathogens, VBNC and mechanism of antibiotic resistance development Explains hospital wastewater and its role in microbial evolution Highlights future treatment options, guidelines and drug disposal tactics
Author: Jude A. Okolie
Publisher: CRC Press
ISBN: 1040015085
Category : Science
Languages : en
Pages : 200
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Book Description
Hydrogen is poised to play a major role in the transition towards a net-zero economy. However, the worldwide implementation of hydrogen energy is restricted by several challenges, including those related to practical, easy, safe, and cost-effective storage and production methodologies. Nanomaterials present a promising solution, playing an integral role in overcoming the limitations of hydrogen production and storage. This book explores these innovations, covering a wide spectrum of applications of nanomaterials for sustainable hydrogen production and storage. Provides an overview of the hydrogen economy and its role in the transition to a net-zero economy. Details various nanomaterials for hydrogen production and storage as well as modeling and optimization of nanomaterials production. Features real-life case studies on innovations in nanomaterials applications for hydrogen storage. Discusses both the current status and future prospects. Aimed at researchers and professionals in chemical, materials, energy, environmental and related engineering disciplines, this work provides readers with an overview of the latest techniques and materials for the development and advancement of hydrogen energy technologies.
Author: International Development Research Centre
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Jo-Shing Yang
Publisher:
ISBN: 9780976168959
Category : Sewage
Languages : en
Pages : 0
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Book Description
Water is the next oil over which nations will fight wars. Severe water shortages already affect some 450 million people living in 29 countries, and analysts have predicted that tensions over water rights in Asia, Africa, and the Middle East could explode into violent clahses and even full-blown wars if governments do not manage existing water supplies more efficiently. Worldwide, 220 river basins are shared by two or more countries and the tensions caused by water scarcity will escalate in this century---the water shortage problems will be exacerbated by global warming and its associated unpredicatable weather patterns. In 2001, the CIA predicted that by 2015, almost half of the world?s population, more than 3 billion people, will live in "water-stressed"countries. How can communities that don't have millions of dollars to hire multinational engineering companies to build highly advanced (but also highly energy and chemical intensive) water- and wastewater-treatment systems? This book is full of practical, low-cost, effective, ecological and economically sustainable, environmental friendly solutions for communities. In the 762 pages (with 185 diagrams and 910 photographs), readers will be introduced to many types of ecologically designed and engineered water- and wastewater-treatment systems, which communities can build with locally available labor, expertise, and resources. Table of Contents and Chapters Chapter 1. Solving global water crises and restoring the environment with ecological engineering. A new paradigm for crafting solutions to global water crises. The significance of ecological engineering. Who will control the water? Privatization, corporatization, militarization, and globalization of water and water rights. Global water scarcity and water use in agriculture. Case study: integrated aquaculture, biological pest control, nutrient recycling, and wastewater polishing in Chinese rice paddies. Chapter 2. Introduction to conventional water-recycling and water-treatment systems. Water intake. Chemical usage and storage. Flocculating clarifier: Coagulation, flocculation, and sedimentation. Filter cells and sand-filter systems. Recycled-water disinfection using chlorine. Pumps and electrical consumption in conventional water-treatment and recycling systems. Recycled-water distribution system and pumping station. Control systems and control room. Reverse-osmosis systems in water-reclamation plants. Seawater intrusion in coastal aquifers around the world. On-site laboratories for water analyses at conventional water-treatment plants. Forest and watershed protection for cost savings in drinking-water filtration. Chapter 3. Introduction to conventional wastewater-treatment systems. The role of fossil fuel and electrical infrastructure in conventional wastewater treatment. Solids removal by coarse and fine screens. Grit removal in grit chambers. Primary sedimentation in tanks and clarifiers. Conventional secondary treatment: activated-sludge and oxygenation aeration. Secondary treatment in final settling basins and secondary clarifiers. Biological filters and trickling filters. Sewage-sludge production and biosolids processing in conventional wastewater-treatment plants. Anaerobic digesters, biogas production, and on-site power generation using sewage sludge. Disinfection of treated wastewater effluent by chlorination, ozonation, and UV radiation. Sewers and pipe systems in conventional wastewater-treatment plants. Chapter 4. Ponds and aquaculture in ecological wastewater-treatment systems. Ponds in cost-effective sewage-treatment technology for small, rural, and remote communities. Models of pond hydrodynamics and biochemical processes in the context of treatment and purification kinetics. Pond designs. Small municipal wastewater-treatment systems. Upgrading facultative ponds and waste-stabilization pond effluents. Agricultural reuse of treated wastewater from waste-stabilization and maturation ponds. Algal ponds in sewage treatment. Case study: A pond system for treating palm-oil mill effluent. Ethical issues anad disclaimer about freshwater-fish polyculture. Combining wastewater recycling and food production in an integrated aquaculture-wetland ecosystem. Case study: Manure-fed and wastewater-fed fish aquaculture in small-town municipal sewage treatment. Case study: Fish-aquaculture-based system for the purification of primary-treated municipal sewage. Case study: Waste-stabilization ponds for wastewater treatment, fish production, and multiple-crop irrigation. Case study: Low-cost sanitation and waste recycling using sewage-fed fish-aquaculture pond systems. Chapter 5. Aquatic plants, macrophytes, halophytes, hydroponic vegetables, trees, and agroforestry in ecological wastewater-treatment systems. Mechanisms of macrophyte-based wastewater-treatment systems. The role of macrophyte roots. Macrophytes and trees in wastewater-treatment plants. The removal of bacteria, viruses, and pathogenic organisms in macrophyte-based wastewater treatment. Aquatic plants in tertiary or advanced wastewater treatment. Biological purification of drinking water using miniature macrophyte-based, constructed ecosystems. Vegetated shoals, bioditches, bioponds, moor filters, peat biofilters, and planted buffer strips in wastewater treatment and pollution prevention. Using macrophytes in hydroponic tertiary treatment and polishing of secondary effluent. Hydroponic crop production to recycle wastes in space stations' closed systems and ecosystems. Evaluating commercial-crop growth potential of a hydroponic sewage-treatment system. Aquatic-macrophyte ponds in the purification of hospital sewage. Macrophytes in septic-tank wastewater treatment. Combined macrophyte-polyculture wastewater-purification and nutrient-recycling system for zoos. Macrophytes and microphytes in a pond-wetland system for rural sewage treatment. Combined algae-water hyacinths in nitrogen removal in industrial wastewater. Salt-tolerant plants, or halophytes, in the treatment of saline wastewater and mitigation of pollution in estuaries and coastal waters. Wastewater purification with water-peanut ponds. Cast study: Macrophyte wastewater-purification ponds combined with nutrient recycling and food production. Mechanical harvesting of macrophytes. Macrophyte species in ecological sewage treatment. Restoration of a reservoir-watershed with agroforestry (and eco-orchards) and ecological engineering. Chapter 6. Constructed wetlands and reed-bed systems in ecological wastewater treatment. The importance of wetlands in protecting natural water quality and watershed health. Three basic types of constructed wetlands. Reed-bed systems for natural sludge dewatering, composting, and storage. Case study: Domestic wastewater treatment using constructed wetlands in India, New Zealand, and the Czech Republic. Case study: An integrated constructed wetland with tea trees (Melaleuca) in Australia. Cast study: Constructed wetlands for nitrate removal in the drinking-water supply of southern California. Case study: Constructed wetlands for river reclamation in Israel. Local and migratory birds in restored wetlands. Chapter 7. Ecological design of greywater recycling and treatment systems. Phytoremediation in the treatment of greywater and chemically contaminated water: Phytoaccumulation, phytoextraction, phytostabilization, phytovolatilization, phytopumping, phytodegradation/phytotransformation, rhizofiltration, and rhizodegradation. Small domestic water-reuse systems for communities. Flowform aeration and natural oxygenation in riverbed flows in wastewater treatment and water purification. Cast studies: (1) A triplicate soil-layer infiltration-wetland-pond system for greywater and rainwater purification in Sweden; (2) Water reclamation with irrigated woodlots and horticulture in Australia; (3) Reed beds for greywater treatment in Costa Rica; (4) Pilot-scale natural treatment system in Mexico. Chapter 8. Living Machines and Solar Aquatics: Examples of integrated, ecological wastewater-treatment systems. What is a Living Machine? The Living Machines in Sonoma Mountain Brewery and the Mars/Ethel M Chocolates Factory in Henderson, NV. An evaluation of a Living Machines Pilot Tertiary Treatment System in San Francisco. Stensund Wastewater Aquaculture in Sweden. The Solar Aquatics in Harwich, Massachusetts. Ethical issues on using fish and other aquatic animals in wastewater treatment. Chapter 9. Low-cost filters and sorbents for water and wastewater treatment. Low-cost sorbents. Fungal biodegradation of wastes in filters. Compact sand filters. Wastewater filtering with ring-shaped floating plastic net media. Fungal biosorbent. Plant-based biomass biosorbent. Sand filters with granitic and volcanic alluvial soils in "Soakaway Pits" for piggery wastewater. Compact sand-and-textile-flock filters for wastewater treatment in households and small communities. Case Study: Permeable pavement filters for water-storage reservoirs. Anthracite ash as low-cost media in fixed-film biological filters. Aerated membranes and biofilters in pilot systems. Microbial biodegradation of chlorophenols and chlorinated hydrocarbons using sand and diatomaceous earth in fluidized-bed bioreactors. Chapter 10. Ecological wastewater-treatment systems for animal manure and high-strength agricultural wastes. Water pollution by industry-scale factory farms. Anaerobic digestion of manure and organic matter. Miniaturizing natural ecosystems in treatment systems. Case studies: (1) A prototype system for the treatment of piggery wastewater; (2) High-rate pond system for piggery wastewater treatment; (3) Combined lagoon-wetland system for piggery wastewater treatment; (4) Constructed wetlands for the treatment of dairy flush water and piggery wastewater; (5) Nutrient recycling of liquid piggery waste with sand filters, macrophytes, and fish aquaculture; (6) In-situ composting of piggery waste with sawdust. Ecological design process: A sample design for a factory dairy farm's manure- and wastewater-treatment system.
Author: Katharine Cross
Publisher: IWA Publishing
ISBN: 9781789062250
Category : Science
Languages : en
Pages : 344
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Book Description
There are 2.4 billion people without improved sanitation and another 2.1 billion with inadequate sanitation (i.e. wastewater drains directly into surface waters), and despite improvements over the past decades, the unsafe management of fecal waste and wastewater continues to present a major risk to public health and the environment (UN, 2016). There is growing interest in low cost sanitation solutions which harness natural systems. However, it can be difficult for wastewater utility managers to understand under what conditions such nature-based solutions (NBS) might be applicable and how best to combine traditional infrastructure, for example an activated sludge treatment plant, with an NBS such as treatment wetlands. There is increasing scientific evidence that treatment systems with designs inspired by nature are highly efficient treatment technologies. The cost-effective design and implementation of ecosystems in wastewater treatment is something that exists and has the potential to be further promoted globally as both a sustainable and practical solution. This book serves as a compilation of technical references, case examples and guidance for applying nature-based solutions for treatment of domestic wastewater, and enables a wide variety of stakeholders to understand the design parameters, removal efficiencies, costs, co-benefits for both people and nature and trade-offs for consideration in their local context. Examples through case studies are from across the globe and provide practical insights into the variety of potentially applicable solutions.
Author: Kelly D. Alley
Publisher: Univ of California Press
ISBN: 0520394305
Category : Sewage
Languages : en
Pages : 223
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Book Description
Around 2004, members of governmental and nongovernmental organizations, science institutes, and private companies throughout India began brainstorming and then experimenting with small-scale treatment systems that could produce usable water from wastewater. Through detailed case studies, Microbial Machines describes how residents, workers, and scientists interact with technology, science, and engineering during the processes of treatment and reuse. Using a human-machine-microbe framework, Kelly Alley explores the ways that people's sensory perceptions of water--including disgust--are dynamic and how people use machines and microbes to digest wastewater. A better understanding of how the human and nonhuman interact in these processes will enable people to generate more effective methods for treating and reusing wastewater. While decentralized wastewater treatment systems may not be a perfect solution, they alleviate resource stress in regions that are particularly hard hit by climate change. These case studies have broad relevance for solving similar problems in many other places around the world.
Author: John G. Vlahakis
Publisher:
ISBN:
Category :
Languages : en
Pages : 61
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Book Description
The report investigates the applicability of using polyelectrolyte-aided-carbon coagulation as a pretreatment in combination with a high-recovery reverse osmosis (RO) system to treat a synthetically prepared Medical Unit, Self-Contained, Transportable (MUST) hospital wastewater with variable characteristics. The five-source hospital waste contained of X-ray, operating room, laboratory, shower, kitchen waters. A 10,000-gpd pilot plant was tested on a 200-hour basis, 100 consecutive hours per run. The system involved polyelectrolyte-aided-carbon coagulation, upflow clarification, diatomaceous earth filtration, and demineralization by spiral-wound RO. The MUST wastewater was adequately treated by this process.
Author: Yves Chartier
Publisher: World Health Organization
ISBN: 9241548568
Category : Medical
Languages : en
Pages : 327
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Book Description
This is the second edition of the WHO handbook on the safe, sustainable and affordable management of health-care waste--commonly known as "the Blue Book". The original Blue Book was a comprehensive publication used widely in health-care centers and government agencies to assist in the adoption of national guidance. It also provided support to committed medical directors and managers to make improvements and presented practical information on waste-management techniques for medical staff and waste workers. It has been more than ten years since the first edition of the Blue Book. During the intervening period, the requirements on generators of health-care wastes have evolved and new methods have become available. Consequently, WHO recognized that it was an appropriate time to update the original text. The purpose of the second edition is to expand and update the practical information in the original Blue Book. The new Blue Book is designed to continue to be a source of impartial health-care information and guidance on safe waste-management practices. The editors' intention has been to keep the best of the original publication and supplement it with the latest relevant information. The audience for the Blue Book has expanded. Initially, the publication was intended for those directly involved in the creation and handling of health-care wastes: medical staff, health-care facility directors, ancillary health workers, infection-control officers and waste workers. This is no longer the situation. A wider range of people and organizations now have an active interest in the safe management of health-care wastes: regulators, policy-makers, development organizations, voluntary groups, environmental bodies, environmental health practitioners, advisers, researchers and students. They should also find the new Blue Book of benefit to their activities. Chapters 2 and 3 explain the various types of waste produced from health-care facilities, their typical characteristics and the hazards these wastes pose to patients, staff and the general environment. Chapters 4 and 5 introduce the guiding regulatory principles for developing local or national approaches to tackling health-care waste management and transposing these into practical plans for regions and individual health-care facilities. Specific methods and technologies are described for waste minimization, segregation and treatment of health-care wastes in Chapters 6, 7 and 8. These chapters introduce the basic features of each technology and the operational and environmental characteristics required to be achieved, followed by information on the potential advantages and disadvantages of each system. To reflect concerns about the difficulties of handling health-care wastewaters, Chapter 9 is an expanded chapter with new guidance on the various sources of wastewater and wastewater treatment options for places not connected to central sewerage systems. Further chapters address issues on economics (Chapter 10), occupational safety (Chapter 11), hygiene and infection control (Chapter 12), and staff training and public awareness (Chapter 13). A wider range of information has been incorporated into this edition of the Blue Book, with the addition of two new chapters on health-care waste management in emergencies (Chapter 14) and an overview of the emerging issues of pandemics, drug-resistant pathogens, climate change and technology advances in medical techniques that will have to be accommodated by health-care waste systems in the future (Chapter 15).
