Double vault Urine Diversion Dry Toilets (UDDT) can be used as an alternative to pit latrines in refugee camps. They utilise two chambers for faeces, one of which is in use whilst the other is full and drying so that it can be safely disposed of after an appropriate period of time.
These Standard Operating Procedures (SOPs) were developed by Oxfam under UNHCR’s “Waste to Value” Project, which was funded by the Bill and Melinda Gates Foundation. They are largely based on UDDTs developed under the Waste to Value Project in Ethiopia. 

D-402/2015a Household Domed Slab (Mass Fabrication) Design and BoQ (UNHCR, 2015)

This document contains documentation to help UNHCR and WASH actors mass-produce circular domed squatting slabs in refugee settings. The package includes: Technical Drawings; Step by Step Construction Drawings; Bills of Quantity; Material and Workmanship Specifications; and Design Calculations.

Design and Installation of a Water Supply Network in Batil Refugee Camp, S. Sudan (Medair and Solidarites, 2014)

This document provides an overview of the design of the water system in Batil Refugee Camp, S. Sudan.