Department Sanitation, Water and Solid Waste for Development

Sanitation, Water and Solid Waste for Development

Our mandate is to develop and test methods and technologies that help the worlds’ poorest access sustainable water, solid waste and sanitation services.

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New Publications

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   publications => '36714,36208,36048' (17 chars)
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   0 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=36714, pid=124)
      originalId => protected36714 (integer)
      authors => protected'Alves, J. M.; Fache, L.; da Silva Souza, F. N.; Ber
         giante, N. C. R.; Silva, F. G.; Belderrain, M.
          C. N.; Spuhler, D.; Schwaninger, M.; Meierhofer, R
         .
' (229 chars) title => protected'Water governance in the Tocantins-Araguaia Hydrographic Region: Assessing vi
         ability using a participatory systemic approach
' (123 chars) journal => protected'PLoS Water' (10 chars) year => protected2026 (integer) volume => protected5 (integer) issue => protected'5 May' (5 chars) startpage => protected'e0000381 (24 pp.)' (17 chars) otherpage => protected'' (0 chars) categories => protected'' (0 chars) description => protected'Changing weather patterns, including prolonged periods of drought and rising
          water demand are putting increasing pressure on water management and underl
         ying governance systems. Our study implemented a novel methodological framew
         ork to jointly assess the physical dimension of water use and the regulatory
          capacity of water governance in the Lake of Palmas River Basin by combining
          the Water Flow Diagram (WFD) and the Viable System Model (VSM). The WFDs we
         re built to visualise seasonal water balances and flows and highlight water
         consumption by different sectors. Data were obtained from reports, utility m
         anagers and the Soil and Water Assessment Tool Plus (SWAT+) hydrological mod
         el. The VSM, grounded in organisational cybernetics, provided a structural a
         nd functional framework for diagnosing governance gaps across diverse organi
         sational levels and sectors. Data for the VSM were collected through documen
         t review, interviews with representatives from government agencies involved
         in water management, water users from different sectors, water resource spec
         ialist and civil society organizations. Findings from the WFD and preliminar
         y results from VSM were reviewed during a participatory co-creation workshop
          involving stakeholders from the same sectors. The combined application of b
         oth tools revealed the suitability of the methodology to foster the dialogue
          around different conflicts of interest on water use and potential mitigatio
         n measures. The process highlighted a significant gap between regulated wate
         r allocation and actual abstraction, identified critical structural deficits
          in local management capacity and inter-institutional coordination, and unco
         vered weak feedback and monitoring mechanisms across governance levels. The
         study demonstrated that VSM and WFD are structurally complementary: the WFD
         visualizes the physical environment of the system, while the VSM maps its re
         gulatory architecture, enabling their joint use for an integrative diagnosti
         c process and redesign. ...
' (2150 chars) serialnumber => protected'' (0 chars) doi => protected'10.1371/journal.pwat.0000381' (28 chars) uid => protected36714 (integer) _localizedUid => protected36714 (integer)modified _languageUid => protectedNULL _versionedUid => protected36714 (integer)modified pid => protected124 (integer)
1 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=36208, pid=124) originalId => protected36208 (integer) authors => protected'Coppens, K.; Stoll, S.; Strande, L.' (50 chars) title => protected'Des lombrics en Ville' (21 chars) journal => protected'Aqua & Gas' (10 chars) year => protected2026 (integer) volume => protected106 (integer) issue => protected'2' (1 chars) startpage => protected'66' (2 chars) otherpage => protected'71' (2 chars) categories => protected'' (0 chars) description => protected'
         
         ain de Genève a été évaluée. En plus de l'abattement de la matière org
         anique, de l'azote, des pathogènes et des micropolluants, l'étude montre q
         
         
' (417 chars) serialnumber => protected'2235-5197' (9 chars) doi => protected'' (0 chars) uid => protected36208 (integer) _localizedUid => protected36208 (integer)modified _languageUid => protectedNULL _versionedUid => protected36208 (integer)modified pid => protected124 (integer)
2 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=36048, pid=124) originalId => protected36048 (integer) authors => protected'Kanyesigye, C.; Ferrero, G.; Marks, S. J.; Niwagaba,&nbs
         p;C. B.; Kulabako, R. N.; Kansiime, F.
' (134 chars) title => protected'Evaluation of water safety plan outcomes and impacts in Bushenyi-Ishaka Muni
         cipality, Uganda
' (92 chars) journal => protected'Utilities Policy' (16 chars) year => protected2026 (integer) volume => protected98 (integer) issue => protected'' (0 chars) startpage => protected'102106 (9 pp.)' (14 chars) otherpage => protected'' (0 chars) categories => protected'compliance; evaluation; monitoring; performance indicators; water safety pla
         n
' (77 chars) description => protected'The World Health Organization recommends Water Safety Plans (WSP) as the mos
         t effective means of ensuring safe drinking-water supply. WSP performance ev
         aluation is necessary for improving water service delivery, scaling up, and
         motivating the roll out of WSP. In this study, the evaluation of WSP develop
         ment and implementation was done in Bushenyi-Ishaka Municipality, a mid-size
         d semi-rural town in southwestern Uganda. Training of operations staff and t
         he WSP team was done. Performance indicator data were collected before, duri
         ng, and after 18 months of WSP implementation to determine the changes attri
         butable to this intervention. Structured semi-quantitative questionnaires we
         re used for data collection, which consisted of 11 progressive outcome indic
         ators categorized under operational and institutional changes, and 14 short-
         term impact indicators categorized under water supply change. Results showed
          that WSP implementation enabled improvement in infrastructure, operational
         monitoring, customer engagement meetings, and training. Implementation of WS
         P did not result in improved catchment management, development and review of
          standard operating procedures and holding of internal meetings. Regarding s
         hort-term impacts, there was a significant improvement in compliance levels
         with drinking water quality standards, continuity of water supply, and custo
         mer satisfaction, as assessed by the frequency of complaints. There was, how
         ever, a significant reduction in the revenue-cost ratio (<em>p</em> = 0.001)
         , likely due to an inadequate budget for implementing service expansion.
' (1592 chars) serialnumber => protected'0957-1787' (9 chars) doi => protected'10.1016/j.jup.2025.102106' (25 chars) uid => protected36048 (integer) _localizedUid => protected36048 (integer)modified _languageUid => protectedNULL _versionedUid => protected36048 (integer)modified pid => protected124 (integer)
Alves, J. M.; Fache, L.; da Silva Souza, F. N.; Bergiante, N. C. R.; Silva, F. G.; Belderrain, M. C. N.; Spuhler, D.; Schwaninger, M.; Meierhofer, R. (2026) Water governance in the Tocantins-Araguaia Hydrographic Region: Assessing viability using a participatory systemic approach, PLoS Water, 5(5 May), e0000381 (24 pp.), doi:10.1371/journal.pwat.0000381, Institutional Repository
Coppens, K.; Stoll, S.; Strande, L. (2026) Des lombrics en Ville, Aqua & Gas, 106(2), 66-71, Institutional Repository
Kanyesigye, C.; Ferrero, G.; Marks, S. J.; Niwagaba, C. B.; Kulabako, R. N.; Kansiime, F. (2026) Evaluation of water safety plan outcomes and impacts in Bushenyi-Ishaka Municipality, Uganda, Utilities Policy, 98, 102106 (9 pp.), doi:10.1016/j.jup.2025.102106, Institutional Repository

Sandec News

June 8, 2026

An Eawag project in Bengaluru, India, is opening up new ways to respond to droughts and water scarcity. The focus is on the decentralised reuse of treated wastewater. Technological solutions alone cannot resolve the complex water challenges. Social aspects must be considered, as well.

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MOOC series «Sanitation, Water and Solid Waste for Development»

Learn about sanitation, water, faecal sludge and solid waste management for free, wherever and whenever you want! More info: MOOC webpage.

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Research Projects

Our humanitarian work includes backstopping and applied research that support the humanitarian WASH sector in acute and protracted crises.
WABES explores opportunities for integrated planning, implementation and sustainability of water, solid waste and fecal sludge service provision in urban settings.
Improving Electro-chlorination Accuracy and Reliability
An applied project to reduce greenhouse gas emissions, improve food security, and create livelihoods in Côte d'Ivoire, Ethiopia, and Uganda by BSF biowaste conversion.