Your public water system is the first line of defense against waterborne disease. View step-by-step how water is treated and delivered to your home or business as water that is safe to drink. Your drinking water is inexpensive compared to other household costs. Learn why it is important to keep the environment clean and find out what you can do to protect our nation's sources of drinking water. Fun facts and classroom activities are also featured. This Video can be viewed in English or Spanish.
US EPA (2012): Virtual Tour of a Drinking Water Plant. URL [Visita: 22.05.2019]Library
This document describes the use of hydrogen peroxide as a liquid disinfectant for faecal coliform reduction from wastewater discharge into a river at Montreal urban community wastewater treatment plant.
WAGNER, M. ; BRUMELIS, D. ; GEHR, R. (2002): Disinfection of Wastewater by Hydrogen Peroxide of Peracetic Acid: Development of Procedure for Measurements of Residual Disinfectant an Application to a Physiochemically Treated Municipal Effluent. Entradas: Water Environmental Research: Volume 74 , 33-50. URL [Visita: 22.05.2019]This short case study describes how a drinking water treatment plant was able to remove manganese and reduce turbidity by applying chlorine dioxide to raw water as a pre-oxidant.
SIEMENS (2011): Rocky Mountain Drinking Water Plant Removes Manganese and Improves Turbidity with Chlorine Dioxide. USA: Siemens URL [Visita: 22.05.2019]In this paper, the patents on treatment of water and wastewater approved from 1999 to 2007 were reviewed. An assessment of the current and future outlook for development of new technologies, methods of treatment, equipment and instruments that can be used for water and wastewater treatment applications are presented.
TANSEL, B. (2008): New Technologies for Water and Wastewater Treatment: A Survey of Recent Patents. Entradas: Recent Patents on Chemical Engineering : Volume 1 , 17-26. URL [Visita: 22.05.2019]This webpage of Aqua Membranes presents the change of the membrane filtration industry with its unique three-dimensional Printed Spacer Technology.
This factsheet describes the purification of recycled water specially the so-called 7-barriers process (Source control; Wastewater treatment plant; Microfiltration; Reverse osmosis; Advanced oxidation; Natural environment; Water treatment plant).
QWC (n.y): How is Purified Recycled Water Made? . Fact Sheet – Purified Recycled Water. QUEENSLAND WATER COMMISSION (QWC) URL [Visita: 22.05.2019]This webpage by the U.S. EPA gives basic information about the role of chlorine in disinfecting drinking water in the U.S., including the types of chlorine added and the formation of chlorine disinfection by-products.
EPA (2012): Basic Information about Disinfectants in Drinking Water. Chloramine, Chlorine and Chlorine Dioxide. Washington, D.C.: U.S.: Environmental Protection Agency (EPA) URL [Visita: 22.05.2019]Microfiltration membrane technology provides a unique design solution for small communities (up to 10 000 people). This is especially true in remote locations where space and personnel are limited and where environmental considerations restrict or prohibit chemical and/or sludge disposal.
WACHINSKI, A.M. LIU, C. (2007): Design Considerations for Small Drinking Water Membrane Systems. Tucson, AZ: Water Conditioning & Purification Magazine URL [Visita: 22.05.2019]Three emerging treatment technologies, including membrane filtration, advanced oxidation processes (AOPs), and UV irradiation, hold great promise to provide alternatives for better protection of public health and the environment and thus are reviewed in this paper. The emphasis was placed on their basic principles, main applications, and new developments. Advantages and disadvantages of these technologies are compared.
CPCB (2010): Status of Water Treatment Plants in India. CENTRAL POLLUTION CONTROL BOARD (CPCB) URL [Visita: 22.05.2019]This position paper provides an overview discussion on the practice of chlorination in water treatment. The discussion covers the following topics: general chlorination practice, chlorine disinfection capabilities, by-product formation, current regulations and use of alternative oxidants for disinfection.
BRAGHETTA, A. JACANGELO, J. TRUSSELL, R.R. MEHEUS, J. (1997): The Practice of Chlorination. Application, Efficacy, Problems and Alternatives. Colombo: The International Water Association (IWA) URL [Visita: 22.05.2019]Technical information on water clarification using Moringa Oleifera, with preparation techniques of the coagulant solution, method of treatment, dosage, advantage and disadvantages of the natural coagulant with useful links.
SCHWARZ, D. (2000): Water Clarification Using Moringa oleifera. Eschborn: GATE-GTZ URL [Visita: 21.05.2019]This document is an overview presentation on different coagulants, discussing different case studies with field results and some lessons learned. Presented in PNWS-AWWA Section Conference.
DUNCAN, K. WISE, D. (2008): Evaluating Coagulant for Water Treatment. Presentation. American Water Works Association, Pacific Northwest Section (PNWS-AWWA) URL [Visita: 21.05.2019]This 4 pages factsheet focuses on the use of activated carbon treatment for drinking water with a special emphasis on practical considerations (type of units, certification etc.)
AMIRAULT, R., CHOBANIAN, G., MCCANTS, D., MCCANN, A., BURDETT, H. and NEPTIN, B. (2003): Activated Carbon Treatment of Drinking Water Supplies. Entradas: Healthy Drinking Water for Rhode Islanders: URL [Visita: 21.05.2019]Simplified factsheet on the principles, construction, operation and maintenance of Kanchan filters (for arsenic and pathogen removal) for drinking water treatment in at the household level.
CAWST (2009): Kanchan Filter. Fact Sheet - Simplified. (= Household Water Treatment and Safe Storage Fact Sheet - Simplified ). Centre for Affordable Water and Sanitation Technology (CAWST) URL [Visita: 21.05.2019]This technical brief gives an overview of the application of an indigenous, naturally derived coagulant, namely seed material from the multi-purpose tree Moringa Oleifera, which offers an alternative solution to the use of expensive chemical coagulants.
FOLKARD, G. SUTHERLAND, J. SHAW, R. (1998): Water Clarification using Moringa Oleifera Seed Coagulant. Loughborough (U.K.): Water and Environmental Health at London and Loughborough (WELL), Loughborough University, Technical Brief 60, pp.109-112 URL [Visita: 21.05.2019]