We are Elrha, a force for change in the humanitarian community. The research and innovation we support equips the humanitarian community with the knowledge of what works, so people affected by crises get the right help when they need it most.
Our purpose is clear: to empower the humanitarian community to improve humanitarian response. We make this happen by supporting and championing the outcomes of robust research and proven innovations.
We empower the humanitarian community. Find out how we can support you...

What is the humanitarian need?

Full pit latrines result in the need for pit replacement and emptying, which is a very costly activity in emergencies or very difficult to secure access to desludging equipment. Latrine emptying services often involve unsafe methods, which pose potential public health risks. As faeces is at least 75% water there are substantial cost savings (in addition to other benefits) to be made by eliminating the water content. The goal of this project is to determine optimal latrine design parameters for increased volume reduction through evaporation by making use of enhanced passive ventilation.

What is the innovative solution?

This project seeks to optimize faecal sludge desiccation by simple enhanced passive ventilation to reduce the waste to be taken off site by 75% in volume. By reducing the desludging frequency this project would substantially reduce the costs of desludging and quantities of faecal sludge that required handling. Addressing a volume reduction gap in emergency settings with benefits for latrine users in urban, peri-urban areas, and a refugee/IDP camp context. Moreover, the project could have other benefits such as the improvement of sludge handling characteristics and safety.

What are the expected outcomes?

First, the aid organizations providing sanitation for population in humanitarian emergencies will benefit from the outcomes of this project by significantly reducing their need for latrine maintenance and emptying requirements. Second, it will benefit people in internally displaced people (IDP) camps and other similar situations where sanitation is either non-existent or severely lacking. The project would also benefit pit latrine users in urban and rural environments.

The initial outcome of the ‘Recognition’ phase of the project would provide faecal sludge desiccation rates at varying conditions. This phase would serve subsequent model exercises to determine different configurations of the passive ventilation system. The outcome would be optimized prototype parameters to be validated in the field. Field-trials will validate design parameters. If successful, final optimized design parameters will be disseminated to WASH communities for implementation.

Latest Updates

Poop Pioneers: On the Frontier of Faecal Sludge Drying Research

28 Feb 2018

Inspired by Aerosan’s passive ventilation emergency toilet, Catherine Bourgault at Université Laval has been researching how poop dries.

View
2018Feb

Subscribe to our newsletters....

Subscribe
 
Elrha © 2018 - 2019 Elrha is a registered charity in England and Wales (1177110).
Elrha Please upgrade your browser

You are seeing this because you are using a browser that is not supported. The Elrha website is built using modern technology and standards. We recommend upgrading your browser with one of the following to properly view our website:

Windows Mac

Please note that this is not an exhaustive list of browsers. We also do not intend to recommend a particular manufacturer's browser over another's; only to suggest upgrading to a browser version that is compliant with current standards to give you the best and most secure browsing experience.