Campbell, A. V. (2020) Integrated Urban Water Management (IUWM) Rapid Assessment: Godawari, Nepal

ENPHO and BORDA have been working in partnership since 2004 to improve living conditions and to protect natural resources and climatic conditions in inadequately served urban and peri-urban settlements in South Asia. Concentrated in the field of urban sanitation, key achievements include technical support and scaling up of Decentralized Wastewater Treatment Systems (DEWATS), introducing Faecal Sludge Management (FSM) services in Nepal, local Water, Sanitation and […]

Various Authors (2019) Resource Recovery & Safe Reuse (RRR) and Public-Private Partnerships (PPP) for Faecal Sludge Management (FSM)

On 20. February 2019 a side-event and lunch-meeting on Resource Recovery & Safe Reuse (RRR) and Public-Private Partnerships (PPP) for Faecal Sludge Management (FSM) took place during the 5th AfricaSan Regional Conference on Sanitation and Hygiene (AfricaSan5) and 5th International Faecal Sludge Management (FSM5) Conference in Cape Town, South Africa. The events were organised as part of the RRR-Project - Phase III (2017 - 2019), […]

Hassib, Y., Noor, M. (2015) Recommendations concerning the scaling-up-potential of BORDA-DEWATS wastewater treatment in the urban context of Kabul, Afghanistan

The principal objective of this document is to assess the scaling-up-potential of DEWATS technology and to identify bottle-necks which need to be addressed to improve sanitation in an urban environment that is widely deprived from proper sanitation services. The following assessment is based on the Technology-Applicability-Framework (TAF) developed by SKAT, Switzerland and was conducted in Kabul, Afghanistan in 2015.

Wolter, D. (2018) Communal Wastewater Characteristics in Developing Countries Desk Study to inform Sanitation System Design

Wastewater characteristics for developing countries are usually either very generalising, outdated or only applicable in a limited context under specific circumstances. The goal of this assignment is to review and collate accessible data on DEWATS design parameters in developing countries and where possible to classify it depending on country and income group in order to • identify knowledge gaps which will guide future BORDA R&D efforts • form […]

SuSanA (2010) Promoting Ecological Sanitation in Kenya

This project was financed by EU, SIDA and GTZ (BMZ). It had been implemented by the EcoSan Promotion Project of the Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) in 2007 to 2010. More than 800 toilets, so called Urine Diversion Dehydration Toilets (UDDTs) were constructed with CBOs and beneficiaries at households and at schools in rural and peri-urban areas. A different technology called pour-flush toilets in […]

SuSanA (2010) School sanitation - a common challenge in Kenya

School sanitation - a common challenge in Kenya. The video shows the state of toilets and their negative influence on the hygiene situation and learning conditions in schools. The installation of ecosan systems is generating the confidence amongst the school staff to solve their sanitation problems and to gain from the benefits of biogas use, fertilizer and the irrigation water thereby saving on costs and […]

CDD Society (2008) Operational Tasks for the Upkeep of Decentralised Wastewater Treatment System (DEWATS)

This Manual is intended for use by the beneficiaries of DEWATS, in particular caretakers and operators. Each operational task is addressed in terms of where and when it will occur, how the task should be performed and why it is needed. Simple information about DEWATS modules and how they function is outlined in the Appendix 1.0. For further information which may be beyond the scope […]

Hassib, Y. (2015) Recommendations concerning the scaling-uppotential of BORDA-DEWATS wastewater treatment in the urban context of Kabul, Afghanistan

BORDA-DEWATS constitutes the treatment element of a sanitation concept that starts with the individual user interface, the toilet, and continues with a simplified sewer system that connects a neighbourhood of less than 10 households up to a few hundred households. The collected wastewater then enters the treatment stage. Solid matter sediments under anaerobic conditions and decomposes by producing small quantities of inert sludge and methane. […]

ESCAP, UN-Habitat, AIT (2015) Policy guidance manual on wastewater management with a special emphasis on decentralized wastewater treatment systems

The Policy Guidance Manual on Wastewater Management with a special emphasis on Decentralised Wastewater Treatment Systems (DEWATS) highlights adequate policy and sustainable practices from the South-East Asia (SEA) region and worldwide. The primary objectives of the Policy Guidance Manual on DEWATS for SEA are three-fold: (a) to guide national and local policy-makers and experts of SEA in enabling pro-poor policies, strategies, legal, institutional, social, environmental and […]

Reynaud, N. (2015) Operation of Decentralised Wastewater Treatment Systems (DEWATS) under tropical field conditions PhD thesis

Decentralised Wastewater Treatment Systems (DEWATS) such as disseminated by the Bremen Overseas Research and Development Association (BORDA) are increasingly being recognized by decision makers across the world as an option for service delivery in densely populated low-income areas. However, little practical experience has been gathered methodologically on basic engineering and performance aspects surrounding these systems. This thesis investigates full-scale anaerobic reactors of communal DEWATS implemented in […]

Various authors (2015) 3rd International Faecal Sludge Management Conference 2015 Hanoi, Vietnam

The Third International Faecal Sludge Management Conference was held in Hanoi from the 18th to the 21st of January 2015. More than 700 delegates from around the world shared ideas and discussed challenges and opportunities in on-site sanitation. Below you find the list of papers in chronological order by day (Day 1-3) and room (room 1-3 ). In order to search by author, simply press "Ctrl+F" […]

WRC (2014) DEWATS process for decentralised wastewater treatment Technical lessons from eThekwini Municipality

Various authors (2014) Presentations and documents on the topic of constructed wetlands (CWs), anaerobic baffled reactors (ABRs) and DEWATS (in English, French and German)

Sasse, L. (1998) DEWATS Decentralised Wastewater Treatment in Developing Countries

Schoebitz, L. (2013) Performance Evaluation of a full-scale DEWATS plant in South Africa

Koottatep, T. (2013) Sustainable decentralized wastewater management in developing countries: design, operation, and monitoring Various documents on results from research grant

This library entry contains background documents for a grant that Thammarat Koottatep is leading and which is funded by the Bill and Melinda Gates Foundation. Further information and a discussion is available on the SuSanA discussion Forum, see link below. Short description of the project: The project seeks to reinvent technologies for decentralized wastewater management that is Naturally Acceptable and Technological Sustainable (NATS). The project focuses on innovation […]

Various authors (2012) Workshop on Emergency Sanitation in Delft

Emergency camp’s sanitation infrastructure is often inadequate and the risks to people’s health become extreme. Governments, NGOs and Humanitarian organisations are fully aware of these problems and the fact that the basic pit latrine design has not been improved upon in decades which aggravated those problems even more. This is especially applicable for camps packed with tens of thousands of people, be it in refugee situations […]

Khawaja, N. (2011) Local leadership and women as drivers of change in adopting sustainable DEWATS systems in the Navin Well-Field pilot project in Herat City, Afghanistan

Gutterer, B., Sasse, L., Panzerbieter, T., Reckerzügel, T. (2009) Decentralised wastewater treatment systems (DEWATS) and sanitation in developing countries A practical guide - sample version, selected pages only

GTZ (2009) Technical drawings and BoQ of decentralised wastewater treatment system (DEWATS) EU-SIDA-GTZ EcoSan Promotion Project