Department Sanitation, Water and Solid Waste for Development

Strategic Environmental Sanitation Planning

Sandec’s research on Sustainable Environmental Sanitation Planning (SESP) systematically addresses the complexity of urban sanitation in order to develop appropriate sanitation systems and services in low- and middle-income areas. Our research provides evidence for improvements in policy and practice. The development, testing and implementation of structured planning and training tools contributes to state-of-the-art knowledge through our practice of active dissemination. We work in partnerships with local and international institutions to support sustainable urban sanitation approaches and to build capacity in the sector.

Our vision for urban sanitation planning is synthesised here.

Our research group has a strong focus on capacity developments and offers training and eLearning on integrated, participatory sanitation planning (e.g. MOOC).


Dr. Christoph LüthiDr. Eng. Infrastructure PlanningTel. +41 58 765 5614Send Mail

Ongoing Research Projects

4S is assessing small-scale sanitation systems in South Asia to provide policy recommendations for improved sanitation system design, implementation and O&M.
This research aims to bridge the planning gap for small towns (i.e. less than 100’000 population).
This two-year research project assesses the conditions and functionality of sanitary infrastructure in four selected health centres in India and Uganda.
SESP supports organisations in the development of tools and guidelines to improve and monitor WASH in schools and health care facilities.

Training and Key References

SESP supports organisations in doing enabling environment assessments, which are necessary to sustain WASH interventions.
Free online course on planning & design of sanitation systems and technologies.
Eawag-Sandec in partnership with UN-HABITAT and WSSCC has published complete guidelines for Community-Led Urban Environmental Sanitation Planning (CLUES).
A key reference document about sanitation systems and technologies.

Past Research Projects

ESRISS deals with the sanitation planning gap in Nile Delta villages that are not connected to large centralised treatment plants.

Blue Diversion Toilet

Continuation of the project: Blue Diversion AUTARKY


Dr. Christoph LüthiDr. Eng. Infrastructure PlanningTel. +41 58 765 5614Send Mail
Philippe ReymondEnvironmental engineer EPFTel. +41 58 765 5148Send Mail
Samuel RenggliMSc ETH Environmental EngineeringTel. +41 58 765 5611Send Mail
Lukas UlrichMSc ETH Environmental EngineeringTel. +41 58 765 5020Send Mail
Rohit ChandragiriMSc Urban ManagementTel. +41 58 765 6477Send Mail
Vasco SchelbertMSc Sustainable DevelopmentTel. +41 58 765 6855Send Mail
Abishek Sankara NarayanDoctoral ResearcherTel. +41 58 765 6771Send Mail

External Team Members

Hussain Etemadi

+49 1573 4647497

Elizabeth Tilley, PhD
Senior Lecturer
Department of Environmental Health
WASHTED Associate
University of Malawi, The Polytechnic
Blantyre, Malawi