On The Filtration Of Potable Water

A large segment of the population in undeveloped and developing countries drink untreated or partially treated water. Annually, 6 to 60 billion cases of gastrointestinal illnesses are continuously reported due to safe drinking water, and over 1.6 million people die due to these water-borne diseases. Owing to increasing concern about global water-related diseases associated with drinking water, finding an affordable and suitable way of water treatment is of great importance. Filtration is a promising point-of-use water treatment. Currently, most water filtration membranes are made of synthetic polymers derived from non-renewable resources. Negative factors like climate change, many different environmental pollutants and the reduction of oil resources give rise to increase the demand of biodegradable products over non-renewable resources. This book introduces a novel, cost effective and biodegradable filter; a so-called cellulose foam filter. The cellulose foam filter is a novel porous cellulosic derivative made via a foam-laid process and modified in order to act as a water filter. Improvements of wet strength performance and the biocidal activity of filters are two main tasks presented in this book. Wet strength improvement is achieved through a furnish formulation, and the addition of agents and antimicrobial activity are preformed using polymeric antimicrobial agents, guanidine-based polymers and �-poly lysine.

Water Purification, a volume in the Nanotechnology in the Food Industry series, provides an in-depth review of the current technologies and emerging application of nanotechnology in drinking water purification, also presenting an overview of the common drinking water contaminants, such as heavy metals, organics, microorganisms, pharmaceuticals, and their occurrences in drinking water sources. As the global water crisis has motivated the industry to look for alternative water supplies, nanotechnology presents significant potential for utilizing previously unacceptable water sources. This books explores the practical methodologies for transforming water using nanotechnologies, and is a comprehensive reference to a wide audience of food science research professionals, professors, and students who are doing research in this field. Includes the most up-to-date information on nanotechnology applications and research methods for water purification and treatment Presents applications of nanotechnology and engineered nanomaterials in drinking water purification to improve efficiency and reduce cost Provides water purification research methods that are important to water quality, including precipitation, adsorption, membrane separation, and ion exchange Covers the potential risks of nanotechnology, such as the toxicological effects of engineered nanomaterials in water and how to minimize risks based on research studies

The Drinking Water Book takes a level-headed look at the serious issues surrounding America's drinking water supply. In the completely revised comprehensive guide to making tap and bottled water safer, you'll find unbiased reporting on what's in your water and how to drink safely. Featuring the latest scientific research, Ingram evaluates the different kinds of filters and bottled waters and rates specific products on the market. The Drinking Water Book: · Honestly and thoroughly tackles a subject vital to ongoing environmental, health, and safety concerns · Shows how to avoid bogus safety tests, scams, and unnecessary expenditures · Explains the toxins in our water, how to test for them, and how to get rid of them · Details which toxins aren't regulated by federal and state water standards

When you open the tap to fill your glass with drinking water, you expect the water to be of good quality. But is the water from your tap really safe? The second edition of an industry-wide bestseller, The Drinking Water Handbook explains the many processes employed to make water safe to drink. Starting at the source, it evaluates the quality control of drinking water through treatment and distribution to the tap, and its use and reuse by the consumer. What’s in Your Glass of Water? Engaging and accessible, the handbook covers important concepts and regulations and identifies current problems with the water supply. In addition to the traditional physical, chemical, and microbiological parameters that affect water quality, it discusses trihalomethanes, Cryptosporidium, viruses, carcinogens, pharmaceuticals and personal care products (PPCPs), and other pollutants. Solutions for Safer Drinking Water The book also addresses the challenges faced by practitioners striving to provide the best drinking water quality to the consumer. It outlines techniques and technologies for monitoring and water treatment, from preliminary screening to filtration and disinfection, as well as advanced processes for specialized water problems. Recognizing the importance of protecting water infrastructure, the authors include a comprehensive chapter on security requirements for waterworks. This user-friendly handbook puts technical information about drinking water in the hands of the general public, sanitary and public works engineers, public health administrators, water treatment operators, and students. Thoroughly updated to reflect current science and technologies, it takes a close look at what can be found in many tap water supplies and the measures taken to ensure the health and well-being of consumers. What’s New in this Edition Updates to every chapter, reflecting advances in the field Expanded material on sick water related to PPCPs Discussion of the latest treatment technologies Coverage of individual contaminants Current regulations related to drinking water