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Access to adequate water, sanitation, drainage and solid waste disposal are four inter-related basic needs which impact significantly on socio-economic development and quality of life. The number of people around the world who still do not have access to these basic facilities, despite enormous global effort over more than two decades,
provides sufficient evidence that conventional approaches …
Household-scale ceramic filtration technology is considered among the most promising options for treating drinking water at the household level in developing countries (Lantagne 2001; Sobsey 2002; Roberts 2004). Its use is Cambodia is widespread and growing, with the involvement of local and international NGOs and government efforts that have been supported by UNICEF, WSP-Cambodia, and others. …
(2017)
These guidelines provide additional support and information on designing and implementing hygiene promotion programmes or elements of hygiene promotion in the programmes of other sectors. They should be used in conjunction with the UNHCR WASH Manual and the summary guidance in the Hygiene Promotion Chapter of this manual.
Human rights underpin all aspects of UNHCR’s international protection work and provide a basic normative framework governing UNHCR’s protection and asistance activities, including in support to access water, sanitation and hygiene (WASH) services. UNHCR supports the full implementation by States of their obligations under international and human rights law as provided for, inter alia, in the …
Locally produced ceramics have been used to filter water for hundreds of years. Ceramic candles are hollow cylindrical forms fastened into the bottom of a container. Water seeps through the ceramic candle
and falls into a lower container, which is fitted with a tap at the bottom. Units often use more than one candle because the flow rate through one candle can be slow. A lid is placed on top of …
In this manuscript the on-site generation of sodium hypochorite for water and wastewater disinfection will be examined. The objective of this paper is to familiarize the reader with the equipment and operational requirements necessary for on-site sodium hypochlorite generation systems. This manuscript will review the following topics relative to on-site generation systems: Understand the basic …
There is currently a general acceptance within the humanitarian sector that market analysis should form a core part of the assessment process after crises, to inform the response options analysis and programme design. This is evidenced by the appearance of market analysis in broader tools such as the Multi Cluster Initial Rapid Assessment (MIRA) and the CaLP Minimum Requirements for Market …
Reflecting the pace of change, since 2016 CaLP has been reviewing, revising and updating the Glossary on
an annual basis. This process (see flowchart below) is coordinated by the CaLP Secretariat and undertaken
through the CaLP Technical Advisory Group (TAG). The TAG is a group of 25 technical experts in the field
of cash and voucher assistance, drawn from CaLP’s membership. Feedback on …
This study originated within the Solar Buildings Program at the U.S. Department of Energy. Its goal is to
assess the potential for solar thennal water disinfection in developing countries. In order to assess solar
thennal potential, the alternatives must be clearly understood and compared. The objectives of the study are
to: a) characterize the developing world disinfection needs and market; …
With financial support from the Swiss Agency for Development and Cooperation (SDC) and the technical assistance of WSP-LAC, the Honduras Water and Sanitation Network carried out a field survey on pumps being used in Honduras directed at identifying successful options for replication.
The following report presents advantages and limitations of two types of low-cost pumps - the EMAS Flexi and the …
Reliable and cost-effective monitoring of rural water supply infrastructure has long been hampered by the geographical curse of dispersed and low-income populations, and weak institutional performance. Recent advances in monitoring technology combined with mobile network expansion into rural areas has created an opportunity to bypass these seemingly intractable challenges. Mobile-enhanced …
Absolutely pure water is rarely, if ever, found in nature. The impurities occur in three progressively finer states - suspended, colloidal and dissolved matter. Different methods of treatment are required for their removal or
reduction to acceptable limits. Coagulation, Flocculation and Clarification, as well as Filtration are
interdependent stages of the solids separationphase of water …
(n.d.)
The OSEC® (On Site Electrolytic Chlorination) hypochlorite generationequipment described in this manual is designed for the continuous production of sodium hypochlorite from brine. The sodium hypochlorite isused in the disinfection of water supplies, being an alternative to the useof gaseous chlorination. The sodium hypochlorite produced by the OSECmethod is of much lower concentration than …
Humanitarian assistance and development cooperation pursue different aims and follow different principles. Their separation – while important to protect the independence of humanitarian action – has negative side effects. This paper seeks to contribute to the international debate by clarifying concepts, analyzing these effects and exploring donor strategies for addressing them.
The state …
(2011)
Groundwater supplies provide a significant proportion of rural dwellers in the developing world with access to a safe drinking water supply and will continue to do so in the near future. With the emergence of Self Supply and its increasing acceptance, low-cost handpumps have a role to play. Twenty five years ago the emphasis was on completely enclosed pumps (for drinking water only) to avoid the …
The Sphere Project, now known as Sphere, was created in 1997 by a group of humanitarian non-governmental organisations and the Red Cross and Red Crescent Movement. Its aim was to improve the quality of their humanitarian responses and to be accountable for their actions. The Sphere philosophy is based on two core beliefs:
• People affected by disaster or conflict have the right to life with …
For many residents of the Ayeyarwady Delta of Myanmar, rainwater collection from village ponds and
roof tops serves as the primary source of potable water throughout the year. In May 2008, Cyclone
Nargis struck the Delta region, damaging many of these ponds by breaching their embankments or filling
them with debris and saline water. Despite the ef orts of the international aid community …
“The most effective means of consistently ensuring the safety of a drinking-water supply is through the use of a comprehensive risk assessment and risk management approach that encompasses all steps in water supply from catchment to consumer. In these Guidelines, such approaches are called water safety plans (WSPs)”.
The words above open Chapter 4 of the Third Edition of the WHO Guidelines …
Over the past few years, UNICEF has been exploring new and innovative approaches to water supply, placing
an emphasis on systems which are affordable, scalable, environmentally sustainable and climate smart. Solar
powered water systems have the potential to meet all of these criteria. The systems can also help provide a
higher quality service to multiple communities through the use of small …
Access to adequate water, sanitation, drainage and solid waste disposal are four inter-related basic needs which impact significantly on socio-economic development and
quality of life. The number of people around the world who still do not have access
to these basic facilities, despite enormous global effort over more than two decades,
provides sufficient evidence that conventional approaches …
A large fraction of the World's population around 1.1 billion people - does not have access to improved sources of water. For many others, contamination of water during transport and in the household presents a significant health risk. For this segment of the world's population, use of effective technologies for household water treatment and storage is likely to have direct beneficial effects in …
Microbial drinking-water quality testing plays an essential role in measures to protect public health. However, such testing remains a significant challenge where resources are limited. With a wide variety of tests available, researchers and practitioners have expressed difficulties in selecting the most appropriate test(s) for a particular budget, application and setting. To assist the selection …
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