Water Treatment
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20-01-2006 Solar Disinfection of Water (SODIS) is a way to disinfect water by using ultraviolet (UV) rays from the sun to destroy harmful microorganisms.
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23-05-2017 This instruction manual is for the concrete tank water filtration system producing up to 2,000liters of water per day.
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The following animation explains the process of developing charcoal filtration systems using sand. It is a simple process that helps to remove many, but not all, pollutants in water that can otherwise cause health problems. Scientific Animations Without Borders (SAWBO) is a university based...
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01-10-2002 Solar Water Disinfection (SODIS) is a simple, environmentally sustainable, low-cost solution for drinking water treatment at household level for people consuming microbiologically contaminated raw water. SODIS uses solar energy to destroy pathogenic microorganisms causing water borne diseases and...
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19-07-1996 Solar water disinfection can be used to reduce bacteria counts in small volumes of drinking water at the individual household level.
- Also available in:
- Español (es)
- English (en)
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The new SODIS manual presents an overview of the SODIS method based on 20 years of research and practice. It is structured into three parts: SODIS at a glance:The first part presents the basic facts about solar disinfection and the SODIS method, gives information about the history of the SODIS...
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Key Resource01-03-2005 In addition to food, shelter and clothing, water is one of our basic human needs and lack of potable water is a major cause of death and disease in our world. The purpose of this document is to provide information on household water treatment using seeds of the Moringa oleifera tree. Using...
- Also available in:
- Français (fr)
- English (en)
- Español (es)
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Key Resource01-01-2001 Access to clean drinking water remains one of the greatest challenges in the world. The BioSand Filter is one method that can be used for purifying water at the household level. With this filter, contaminated water is filtered through a natural biological layer and then layers of sand, pebbles...
- Also available in:
- Français (fr)
- English (en)
- Español (es)
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16-11-2017 Traditional water treatment using moringa seeds only removes 90 – 99% of pathogens while allowing fouling of the water over time.Over the past seven years Dr. Velegol’s research group has created an innovative and sustainable process that solves these two problems.When crushed seeds are added to...
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12-08-2016 The Biosand Filter Construction Manual describes what a biosand filter is and how it works. It also describes the steps to construct, install and monitor Version 10 biosand filters. Available Online
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This brief outlines the different arsenic removal methods and technologies that are available for use with small-scale supplies in developing countries.
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Simple explanation of how the Potters for Peace Ceramic Water Purifier Filter removes bacteria from contaminated source water.
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19-11-2019 Session :Grace has been conducting Moringa research for 20 years with undergraduate students. This presentation will be a research update on moringa as an antibacterial plant and water purification option. Tissue culture and regeneration of moringa, as well as future use in biotechnology,...
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Water is essential for life. The amount of fresh water on earth is limited, and its quality is under constant pressure. Preserving the quality of fresh water is important for the drinking-water supply, food production and recreational water use. Water quality can be compromised by the presence of...
- Also available in:
- 汉语 (zh)
- Español (es)
- Français (fr)
- English (en)
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Scientists long ago discovered how to purify unsafe water. To us, the central issue has been in designing solutions that are both sustainable and scalable and that can reach the millions in need while at the same time continuing to function without sustained outside input. We are a 501(c)3...
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One billion people lack safe drinking water. Every day they risk their lives and health by drinking from contaminated sources: they are missing out on a basic human right. Here the biosand filter can make a difference, providing safe drinking water, right where it’s needed most: at household...
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With the right knowledge and skills anyone, anywhere can take ownership of their own water, sanitation and hygiene. CAWST empowers people to take action in their homes and neighbourhoods, builds resiliency, and ensures appropriate solutions for the local water context.
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Key Resource 21-08-2009 Most water and sanitation facilities used by households or operated by small-scale enterprises were built without external support. This shows there are alternatives to the large centralized conventional systems. More importantly, small-scale solutions have proven to be cost effective....
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AbstractEnvironmental Science & Technology Letters, 2017 The purpose of this work is to determine parameters for the design of aMoringaseed sand filter for water purification.Moringa oleiferaseeds containing cationic antimicrobial proteins have been used as natural coagulants for the removal...
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20-11-2014 Toxic synthetic chemicals such as pesticides and pharmaceutical residues are a major threat to drinking water safety worldwide. Unfortunately, major international water development initiatives focus exclusively on microbial pathogens (the most immediate threat to health) while neglecting...
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17-11-2016 Are you curious about how moringa seeds can remove 90-99% of the impurities from dirty water? Come and see it in action! While we are thrilled with what moringa seeds can do on their own, we are working to develop an even better process utilizing functionalized sand (a combination of crushed...
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20-10-2010 Experiences promoting use of moringa in Tanzania
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20-10-2004 Results of a Moringa Taste Test Carambola—A Five Star Fruit Indoor Air Pollution from Cooking Fire Smoke Black Sigatoka, Water Purification
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- Español (es)
- English (en)
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28-10-2014
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20-03-2014
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20-10-2014
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Toxic synthetic chemicals such as pesticides and pharmaceutical residues are a major threat to drinking water safety worldwide. Unfortunately, major international water development initiatives focus exclusively on microbial pathogens (the most immediate threat to health) while neglecting...
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Key Resource 01-11-2005 Inadequate drinking water and sanitation are amongst the world's major causes of preventable morbidity and mortality. This book provides a state-of-the-art review on approaches and methods used in assessing the microbial safety of drinking water. It supports the rapidly emerging trend towards...
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You may already know that clean water is scarce in many parts of the world. But, did you know thatevery eight seconds a child dies from problems caused by drinking water that is contaminated and unsafe? You have found"A Layman's Guide to Clean Water": An introduction to water, sanitation, and...
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SODIS (short for Solar Water Disinfection) started as an initiative of Eawag, the Swiss Federal Institute of Aquatic Sciences and Technology. Eawag supports the improvement and spread of the SODIS method through research in microbiology, health, educational strategies and PET bottles. An...
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Traditional water treatment using moringa seeds only removes 90 – 99% of pathogens while allowing fouling of the water over time.Over the past seven years Dr. Velegol’s research group has created an innovative and sustainable process that solves these two problems.When crushed seeds are added to...
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22-11-2017 ABSTRACT: Environmental Science & Technology, 2017 The purpose of this work is to determine parameters for the design of a Moringa seed sand filter for water purification. Moringa oleifera seeds containing cationic antimicrobial proteins have been used as natural coagulants for the removal of...
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Moringa oleifera(Moringa) seeds contain a natural cationic protein (MOCP) that can be used as an antimicrobial flocculant for water clarification. Currently, the main barrier to using Moringa seeds for producing potable water is that the seeds release other water-soluble proteins and organic...
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Abstract -In developing countries like India, the deciding factors for the selection of the specific water purification system are the flow rate, cost of implementation and maintenance, availability of materials for fabrication or assembling, technical manpower, energy requirement and...
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23-05-2017 This instruction manual is for the "blue barrel" water filtration system producing up to 300 liters of water per day.
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01-01-2011 As water quality becomes a leading concern for people and ecosystems worldwide, it must be properly assessed in order to protect water resources for current and future generations.Water Quality Concepts, Sampling, and Analysessupplies practical information for planning, conducting, or evaluating...
- The best solution to the water problem is the same one you benefit from every day: chlorination. Chlorination has protected the United States and other countries for nearly a century and has saved more lives than perhaps any other technology. The New Life International Water Purifier is an unique...
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20-01-2006 Turbidity is an important water quality parameter in drinking water provision and treatment. The equipment typically used to measure turbidity can be quite expensive, and often provides results which are more precise and accurate than necessary. This high cost is a barrier to many projects in the...
- Ivan Kozyatnyk, Mary Njenga, Use of biochar and Moringa oleifera in greywater treatment to remove heavy metals and contaminants of emerging concern, Bioresource Technology Reports, Volume 24, 2023, 101615, ISSN 2589-014X, https://doi.org/10.1016/j.biteb.2023.101615....
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For over 15 years, we have continued to expand our reach and impact, bringing sustainable and effective safe water and sanitation solutions to communities across Central America and Haiti. To date, we have reached over 750,000 individuals, across more than 200 communities. Each year, almostone...