Household Water Newsletter, Issue 5

Welcome Announcements Recent Events Featured Topic Field Report Event Calendar

Greetings from Uganda,

We have just wrapped up the East Africa workshop on HWTS and other household environmental health interventions. Welcome to our colleagues from Ethiopia, Kenya, Rwanda, Tanzania and Uganda who have joined the mailing list and are eager to participate in the Network. The workshop materials will be available to all shortly. Earlier in June, we also held the Network’s second webinar to give participants a chance to provide feedback and hear experts comment on the WHO’s draft monitoring and evaluation toolkit. We are currently preparing a summary of this discussion for the record. In this issue of the newsletter you will find our final summary of the Network webinar from April 2011, with answers to participants’ questions on various topics and a list of references to relevant research and evidence. Stay tuned for information on future events. Please also let us know if you intend to participate in the Annual Network Meeting to be held in Chapel Hill, USA on October 3, 2011.


  • UNICEF and WHO Co-hosting Arrangement for the HWTS Network
  • Details of UNICEF’s and WHO’s co-hosting arrangements are now available online at the WHO Network portal. This arrangement underscores inter-agency collaboration in relation to the 7-point strategy on comprehensive diarrhoeal control and utilises the comparative advantages of each agency. Network working groups are currently being re-constituted in order to effectively implement the work outlined in the Network’s Phase II Strategy for 2011-2016.

  • World Health Assembly adopts resolution on drinking-water, sanitation, and health
  • On 24 May 2011 the 64th World Health Assembly unanimously adopted Resolution 64/24 on drinking-water, sanitation and health. It also adopted resolutions on cholera prevention and control and on the eradication of dracunculiasis. This marks a major event in the development of the WHO strategy and programme on water, sanitation, hygiene and health for the coming five to ten years. View the details

  • UN Water for Life Awards – 2012 nomination period now open
  • The nomination period for the 2012 competition is open from June 30 2011 until 30 September 2011. Nominations for awards may be submitted in one of two categories – 1) Best water management practices; and 2) Best participatory, communication, awareness-raising and education practices. The 2011 awards had 74 candidates, including Safe Water and AIDS Project of Kisumu, Kenya, which placed second overall in its category. SWAP has been active in household water treatment and safe storage since 2002 and joined the Network in 2010. For full details of the awards process, visit the UN website.

  • PATH announces development of chlorine test strip
  • PATH and Precision Laboratories are pleased to announce the availability of a test strip to measure free available chlorine levels in drinking water. The test strip was designed to meet the needs of users in low-income settings and could be useful for monitoring community-scale chlorine-based treatment or conducting field research of chlorine-based treatment interventions, whether at the community or household level. The test is accurate to 0.01 parts per million and detects free-available chlorine at a range of 0-5 parts per million in only five seconds. To inquire about the test strips or request a free sample bottle, please email

    Recent Events

  • Network Webinar in April 2011: Final report now available
  • In April 2011, the Network held its first webinar broadcast Evaluating household water treatment: from evidence to action. The final summary report is now ready for download, and includes answers to questions raised by participants and references/links to research and evidence that can help guide program development and implementation. Download the summary report

  • Disinfection 2011: Selected presentations available for download
  • Disinfection 2011, a conference held on 10-12 April, 2011 in Cincinnati, Ohio, USA, provided a meeting ground for those water quality professionals concerned with disinfection needs and technologies, including the disinfection of water and wastewater, reuse water, and bio-solids. The conference proceedings consisted of workshops and themed sessions, several of which related to household water treatment and safe storage as listed below. From these, 30 presentations were selected and are available for download below. Thanks to Daniele Lantagne of Harvard University for making this work available. You may also download the conference program and workshop agendas from the Disinfection 2011 website here.

    Keynote Presentation

    Jamie Bartram: Water, Sanitation and Hygiene in Developing Countries – an HWTS perspective | Download

    Workshop on Ceramic Filters and Bio-Sand Filters

    1. Burt Cohen – Bumps in the Road: The importance of community investment in developing ceramic water filter factories | Download

    2. Barbara Donachy – Effects of Rural Health Promoter Training in the Use and Maintenance of the PFP Colloidal Silver Impregnated Water Filter in Nicaragua | Download

    3. Justine Rayner – Best Practice Recommendations for Local Manufacturing of Ceramic Pot Filters for Household Water Treatment | Download

    4. Vinka Craver – Evaluation of Different Silver Compounds Applied to Point-of-Use Ceramic Water Filters | Download

    5. Kristen Jellison – Evaluating the Impact of Production Variables on teh Effluent Water Quality of Ceramic Pot Filters | Download

    6. Hem Pokharel – Investigation of Activated Carbon and Polycyclic Aromatic Hydrocarbons in Ceramic Filters Used for Drinking Water Treatment | Download

    7. Martin Page – Development and Evaluation of Moringa-Enhanced BioSand Filtration for Use in Nomba, Mozambique | Download

    8. Bethany Steen – An Evaluation of the Impact of Post-Installation Follow-Up Visits Within the Context of a BioSand Filter Implementation Project in Rural Indonesia | Download

    9. Ernest Blatchley – Development of a Community-Scale Biologically-Active Sand Filter in Western Kenya | Download

    10. Mark Elliott – Virus Reduction by Microbial Mechanisms during Idle Time in the Bio Sand Filter | Download

    11. Julie Napotnik – Optimizing the BioSand Filter for Household Drinking Water Treatment in Developing Countries | Download

    Session on Diarrheal Research

    1. K Baker – BTransmission of Diarrheal Pathogens Through Drinking Water in Rural Gambia | Download

    2. T. Vonder Haar – Inactivation of Coxsackievirus by Chlorine, Silver, and Solar Disinfection for Safe Global Water | Download

    3. H. Yu – Impact of Silver Nanoparticle Concentration and Size in Colloidal-Silver-Impregnated Ceramic Filters for Point-of-Use Removal of E. coli and MS-2 Phage | Download

    Session on Emerging and New Options for Disinfection

    1. C. F. H. Krause – A Characterization of Bacterial Disinfection Kinetics Using Silver Nanoparticles | Not yet available – please check back shortly

    2. A. Torkelson – Development of Antimicrobial Surfaces on Silica Media to Enhance Bacteria and Virus Removal and Inactivation During Filtration | Download

    3. D. Lantagne – The Response to the Haiti Earthquake and Cholera Outbreaks | Download

    4. U. Stafford – New Techniques and Technologies for Scaling Up Household Water | Download

    5. L.R. Brunson – A Study of Aluminum Coated Wood and Animal Bone Chars for Household Defluoridation | Download

    Session on Critical Program Evaluation

    1. Clair Null – Sustainability of Long-Term Take-Up of Point-of-Collection Chlorine Dispensers Provided Free of Charge in Rural Western Kenya | Download

    2. Clair Null – Effects of Exceeding Recommended Storage Time of Hypochlorite-Treated Water in Ceramic Pots | Download

    3. Robyn Wilmouth – Evaluation of the Implementation (Pilot) of a Small Community Electrochlorination Device—Smart Electrochlorinator (SE200)—at a Field Site in a Peri-urban Community (Kisumu, Kenya) | Download

    4. Eric Harshfield – Evaluating the Long-Term Health Impact of Household Chlorination of Drinking Water in Rural Haiti | Download

    5. Michael Ritter – Adoption of Household Chlorination Pre- and Post-emergency Response in Léogâne, Haiti | Download

    Session on Program Examples

    1. Cecilia Kwak – Evaluating Population Services International’s Household Point-of- Use Water Treatment Program in Rwanda, 2006-2010 | Download

    2. Amrita Ahuja – Operational Models for Chlorine Dispensers at Communal Water | Download

    3. Vidal Garza – Developing Public/Private Partnerships to Improve Water Interventions in Latin America: Working Model and Outcomes | Download

    4. Greg Allgood – Lessons Learned in Providing 2 Billion Liter of Clean Drinking Water in the Developing World With Point-of-Use Flocculent-Disinfectant Technology | Download

    5. Ashley Latimer – Evidence Based Designing of a Communication Campaign for Enhancing use of Point of use (PoU) Water Disinfectants in Urban Slums of Dharavi, Mumbai, India | Download

    Featured Topic

    No news to report for this issue.

    Field Report

  • Ceramics Manufacturing Working Group Releases Best Practice Recommendations
  • The Ceramics Manufacturing Working Group has just published the first edition of Best Practice Recommendations for Local Manufacturing of Ceramic Pot Filters for Household Water Treatment, with support from the US Centers for Disease Control and PATH.

    The report is divided into chapters that address previous research carried out on filters, current practices in manufacturing, and production variables including quality control in manufacturing and of the final product. This document is not intended to provide instructions on the manufacture of ceramic water filters but instead to provide guidance for existing filter factories to produce low-cost ceramic water filters of consistent, high quality that improve drinking water quality. The report also aims to help researchers better understand how filters are manufactured and how production variables can influence filter characteristics. Many areas where further research is needed -to better understand and improve upon the production processes and filter technology- are listed at the end of each chapter.

    Questions, comments and feedback may be submitted via an online forum located at or directly to members of the working group listed in the report. The online forum also has other resources for those who are interested in this topic.

    Best Practice Recommendations for Local Manufacturing of Ceramic Pot Filters for Household Water Treatment
    Ceramics Manufacturing Working Group, June 2011, 1st edition | Download

    Ceramic Pot Filter Online Community and Discussion Forum | Click to visit

    Event Calendar

    Network Events

  • Annual Network Meeting: 3 October 2011 in Chapel Hill, USA
  • Other Events

  • WEDC International Conference: 6-8 July, 2011 at Loughborough University, UK
  • World Water Week 2011: 21-27 August, 2011 in Stockholm, Sweden
  • 16th International Symposium on Health-Related Water Microbiology: 18-23 September, 2011 in Rotorua, New Zealand
  • Water & Health 2011: 3-7 October, 2011 at the University of North Carolina at Chapel Hill, USA
  • Global Forum on Sanitation & Hygiene 2011: 9-14 October, 2011 in Mumbai, India
  • 2nd IWA Development
    Congress & Exhibition:
    21-24 November, 2011 in Kuala Lumpur, Malaysia
  • 6th Rural Water Supply Forum – Call for Abstracts in Progress: 29 November to 1 December, 2011 in Kampala, Uganda
  • 6th World Water Forum: 12-17 March, 2012 in Marseille, France
  • Are you aware of an upcoming international, regional or national event on HWTS? Please tell us by email at or

    Environ Sci Engineering - Ops