Decentralized Waste Treatment and Energy Recovery in Kigali, Rwanda

EPA Grant Number: SU833175
Title: Decentralized Waste Treatment and Energy Recovery in Kigali, Rwanda
Investigators: Striebig, Bradley A. , Dacquisto, John F. , Regan, Raymond W. , Reiner, Mark , Appel, Philip , Reyes,
Current Investigators: Striebig, Bradley A. , Dacquisto, John F. , Elder, Andrew , Luu, Annie , Odle, Christopher , Pavese, Christopher , Stippel, Joseph , Rudie, Keith , Martinez, Luis , Reiner, Mark , Traore, Mohamed , Avdeyev, Natalya , Ravenna, Nicholas , Appel, Philip , Kane, Rachel , Bryant, Robert , Stiger, Robert , Norwood, Susan , Shenoy, Sushil
Institution: Gonzaga University , Pennsylvania State University
Current Institution: Gonzaga University
EPA Project Officer: Page, Angela
Phase: I
Project Period: September 30, 2006 through May 30, 2007
Project Amount: $10,000
RFA: P3 Awards: A National Student Design Competition for Sustainability Focusing on People, Prosperity and the Planet (2006) RFA Text |  Recipients Lists
Research Category: Nanotechnology , P3 Challenge Area - Water , Pollution Prevention/Sustainable Development , P3 Awards , Sustainability


Currently, there is almost no treatment of wastewater in Kigali, Rwanda. A sustainable and inexpensive alternative to the power and capital intensive needs of traditional centralized wastewater treatment plants is required for Rwanda, an energy and capital poor country. Appropriate decentralized technologies (rainwater harvesting, upflow clarification, anaerobic digestion, biogas generation and biosolids reuse) will be combined in an innovative design to improve water quality in the Kigali watershed and conserve natural resources for future generations.

A scalable wastewater treatment process will generate biogas and fertilizer for Kigali. This project will be implemented by a unique collaboration between village administrative cells, and engineers. This team has the capacity to develop policies and methods to significantly improve the quality of life for people living in similar climates and topography throughout the world. This project is a collaboration between the City of Kigali (CoK), Kigali Institute of Science and Technology (KIST), National University of Rwanda (NUR), Gonzaga University (GU), The Pennsylvania State University (PSU), Tetra-Tech (TT), and EWB-USA (EWB).

Components of the decentralized wastewater treatment system will be designed and demonstrated to improve water quality in the Kigali watershed, generate biogas and biosolids. The design will be modular, scalable and easily adapted to similar climates and topographies.  The project, if implemented and replicated, is expected to have a significant health and economic impact on over 600,000 inhabitants of Kigali and those living downstream.

Publications and Presentations:

Publications have been submitted on this project: View all 1 publications for this project

Supplemental Keywords:

Sustainable development, community based, human health, decentralized treatment, sub-Saharan Africa,, RFA, Scientific Discipline, Geographic Area, Water, TREATMENT/CONTROL, Sustainable Industry/Business, Wastewater, Sustainable Environment, Technology for Sustainable Environment, International, Environmental Engineering, Urban and Regional Planning, Water Pollution Control, wastewater treatment, sustainable development, urban planning, biogas, rainwater harvesting, treatment, resource recovery, Rwanda, pollution prevention, renewable resource

Progress and Final Reports:

  • Final Report