Department Sanitation, Water and Solid Waste for Development

Excreta and Wastewater Management

2.7 billion people worldwide currently rely on onsite sanitation technologies. The development of innovative solutions for collection, transport, treatment, and resource recovery of the resulting faecal sludge (FS) is essential to fulfill the sanitation needs of urban areas in low- and middle-income countries.

Faecal Sludge Management (FSM) is a relatively new and rapidly growing field. In addition to innovation, there is a great need for practical and reliable approaches that allow engineers to select and design treatment technologies. Sandec’s research addresses these gaps in sound engineering design approaches for FSM. Our publications are all available here.

Contact

Dr. Linda StrandeTel. +41 58 765 5553Send Mail

Projects:

Uganda

The SEEK project aims to increase revenue potential by processing sludge together with other urban waste streams into fuel pellets and electricity through gasification.

The Sandec-led FaME Project demonstrated that in Sub-Saharan Africa the calorific value of faecal sludge is comparable to other currently used biofuels. Revenues from faecal sludge as a fuel can be four times higher compared to its use as soil conditioner in agriculture. Building on this knowledge, the SEEK project aims to increase revenue potential by processing sludge together with other urban waste streams into fuel pellets and electricity through gasification.

Switzerland

One of the most important treatment objectives in FSM is dewatering. FS is mainly comprised of water, and water is heavy and expensive to transport. Discharging polluted water into the environment also has significant negative impacts. Dewatering FS is required prior to its being used in resource recovery applications, such as composting or combustion as a fuel.

For more information about NEST>>

Vietnam

Sandec is working in collaboration with the Hanoi University of Civil Engineering to evaluate the feasibility of treating faecal sludge through anaerobic digestion.

Sandec is working in collaboration with the Hanoi University of Civil Engineering to evaluate the feasibility of treating faecal sludge through anaerobic digestion. This project focuses on the development of knowledge and reliable methods that ensure the appropriate design of faecal sludge treatment technologies.

For more information on PURR>>

Tanzania

One of the most important treatment objectives in FSM is dewatering. FS is mainly comprised of water, and water is heavy and expensive to transport. Discharging polluted water into the environment also has significant negative impacts. Dewatering FS is required prior to its being used in resource recovery applications, such as composting or combustion as a fuel.

Global - SFDs

The Shit-Flow-Diagram (SFD) is a figure designed to present complex information in easy to understand fashion, to convey the current state of sanitation on a city-wide scale.

The Shit-Flow-Diagram (SFD) is a figure designed to present complex information in easy to understand fashion. The SFD Promotion Initiative has developed a methodology and tools to estimate excreta flows on a city-wide scale, in a way that ensures credible and transparent results.

For more information on SFD's>>


Team

Dr. Linda StrandeTel. +41 58 765 5553Send Mail
Magalie BassanTel. +41 58 765 6765Send Mail
Moritz GoldTel. +41 58 765 5015Send Mail
Barbara Jeanne WardTel. +41 58 765 5290Send Mail
Dr. Mi NguyenPostdoctoral ResearcherTel. +41 58 765 6468Send Mail