Category Archives: Sanitary Facilities

2016 WEDC conference presentations on fecal sludge management

The 122 presentations from the 2016 WEDC conference are now online at http://wedc.lu/wedc39 and below are links to presentations on the topic of fecal sludge management. wedc_moodle

  1. A socio-economic analysis of different approaches to faecal sludge treatment in Sunyani, Ghana Mallory, Adrian
  2. An exploration of sanitation and waste disposal practices in low-income communities in Accra, Ghana Abraham, Ernest M
  3. Analysis of faecal sludge collection efficiency for improvement in developing countries Flamand, Pierre
  4. Comparison of scales for faecal sludge gravimetric characterization in low-resource settings Therrien, Jean-David
  5. Development of low-cost decentralized faecal sludge treatment system for resource recovery Atwijukye, Osbert
  6. Effects of high-strength fecal sludge in wastewater stabilization ponds: Port-au-Prince, Haiti Martinsen, Andrea
  7. How to improve sanitation in Mae La refugee camp: SI sludge treatment unit Cavalazzi, Fabrizio
  8. Overcoming capacity gaps in fecal sludge management through education and training Philippe, Sterenn

 

5 lessons to manage fecal sludge better

5 lessons to manage fecal sludge better | Source: by Peter Hawkins & Isabell Blackett, World Bank Water Blog, July 19 2016 |

Our last blog outlined the neglect of Fecal Sludge Management (FSM) and presented new tools for diagnosing FSM challenges and pointing the way to solutions.

World Bank Document

A motorized tricycle fitted with a small tank provides desludging services in Dar Es Salaam, Tanzania. Photo credit: Kathy Eales / World Bank

In this blog, we’ll share some lessons learned from the city-specific case studies and analysis to highlight key areas which need to be addressed if the non-networked sanitation services on which so many citizens rely are to be effectively managed.

Lesson 1: Fecal sludge management must be included in national policy and legislation

On-site sanitation is often the only sanitation option for poor households, and may account for the majority of all sanitation, in many middle income and poor countries. However, the construction and servicing of on-site facilities is typically left to the unregulated informal sector.

There can even be legal barriers to developing on-site sanitation, although integrated urban water management may identify the provision of clean piped water, with systematic FSM, as a cheaper, more effective solution than city-wide sewerage access. The formal recognition and regulation of on-site sanitation and FSM is therefore critical.

Read the complete article.

High-Resolution Spatial Distribution and Estimation of Access to Improved Sanitation in Kenya

High-Resolution Spatial Distribution and Estimation of Access to Improved Sanitation in Kenya. PLoS One, July 2016. Authors: Peng Jia , John D. Anderson, Michael Leitner, Richard Rheingans

Background – Access to sanitation facilities is imperative in reducing the risk of multiple adverse health outcomes. A distinct disparity in sanitation exists among different wealth levels in many low-income countries, which may hinder the progress across each of the Millennium Development Goals.

Methods – The surveyed households in 397 clusters from 2008–2009 Kenya Demographic and Health Surveys were divided into five wealth quintiles based on their national asset scores. A series of spatial analysis methods including excess risk, local spatial autocorrelation, and spatial interpolation were applied to observe disparities in coverage of improved sanitation among different wealth categories. The total number of the population with improved sanitation was estimated by interpolating, time-adjusting, and multiplying the surveyed coverage rates by high-resolution population grids. A comparison was then made with the annual estimates from United Nations Population Division and World Health Organization /United Nations Children’s Fund Joint Monitoring Program for Water Supply and Sanitation.

Results – The Empirical Bayesian Kriging interpolation produced minimal root mean squared error for all clusters and five quintiles while predicting the raw and spatial coverage rates of improved sanitation. The coverage in southern regions was generally higher than in the north and east, and the coverage in the south decreased from Nairobi in all directions, while Nyanza and North Eastern Province had relatively poor coverage. The general clustering trend of high and low sanitation improvement among surveyed clusters was confirmed after spatial smoothing.

Conclusions – There exists an apparent disparity in sanitation among different wealth categories across Kenya and spatially smoothed coverage rates resulted in a closer estimation of the available statistics than raw coverage rates. Future intervention activities need to be tailored for both different wealth categories and nationally where there are areas of greater needs when resources are limited.

 

Sustainable Sanitation for All: Experiences, challenges, and innovations

Sustainable Sanitation for All: Experiences, challenges, and innovations, June 2016. Practical Action.

Great strides have been made in improving sanitation in many developing countries. Yet, 2.4 billion people worldwide still lack access to adequate sanitation facilities and the poorest and most vulnerable members of society are often not reached and their specific needs are not met. sanitation

Moreover, sustainability is currently one of the key challenges in CLTS and wider WASH practice, subsuming issues such as behaviour change, equity and inclusion, physical sustainability and sanitation marketing, monitoring and verification, engagement of governments, NGOs and donors, particularly after open defecation free (ODF) status is reached, and more.

Achievement of ODF status is now recognised as only the first stage in a long process of change and sanitation improvement, with new challenges emerging every step of the way, such as how to stimulate progress up the sanitation ladder, how to ensure the poorest and marginalised are reached, or how to maintain and embed behaviour change.

There have been several useful studies on sustainability that have highlighted some of these different aspects as well as the complexities involved. This book develops these key themes by exploring current experience, practices, challenges, innovations and insights, as well as identifying a future research agenda and gaps in current knowledge.

Describing the landscape of sustainability of CLTS and sanitation with reference to the Sustainable Development Goals (SDGs) and through examples from Africa and Asia, the book captures a range of experiences and innovations from a broad range of institutions and actors within the WASH sector, and attempts to make recommendations and practical suggestions for policy and practice for practitioners, funders, policy-makers and governments.

Intra-Household Access to WASH in Uganda and Zambia – Do Variations Exist?

Intra-Household Access to WASH in Uganda and Zambia – Do Variations Exist? SHARE.

This paper was produced for the 39th WEDC Conference held in Ghana in July 2016. It analyses baseline data from the SHARE-funded Undoing Inequity project to explore whether differences exist between heads of household and ‘vulnerable’ individuals’ reports on access and use of WASH at the household level.

Laying the Groundwork to Scale Up Sanitation Marketing in Ethiopia

Laying the Groundwork to Scale Up Sanitation Marketing in Ethiopia, 2016. WASHplus.

Between February 2, 2015 and October 31st, 2015, with support from USAID’s WASHplus project and the Vitol Foundation, iDE implemented a project to scale up rural sanitation marketing in rural areas of four regions of Ethiopia (SNNPR (Southern Nations, Nationalities and Peoples), Amhara, Oromia, Tigray). Building on the success of a pilot project that established the potential to scale sanitation marketing in rural Ethiopia, this project aimed to:

1. Continue developing and refining the design of the latrine products (slab and pit lining) as well as the business model for sales and delivery of the latrine;

2. Develop sales training and marketing materials for sales agents and manufacturers.

 

Methane production for sanitation improvement in Haiti

Methane production for sanitation improvement in HaitiBiomass and Bioenergy
Volume 91, August 2016, Pages 288–295.

Authors: Stephanie Lansing, Holly Bowen,  et. al.

There is a great need for decentralized anaerobic digestion (AD) that utilizes wastewater for energy generation. The biochemical methane potential (BMP) of Haitian latrine waste was determined and compared to other waste streams, such as grey water, septage, and dairy manure.

Average methane (CH4) production for the latrine waste (13.6 ml ml−1 substrate) was 23 times greater than septage (0.58 ml ml−1 substrate), and 151 times greater than grey water (0.09 ml ml−1 substrate), illustrating the larger potential when waste is source separated using the decentralized sanitation and reuse (DESAR) concept for more appropriate treatment of each waste stream.

Using the BMP results, methane production based on various AD configurations was calculated, and compared with the full-scale field AD design.

Methane potential from the BMP testing was calculated as 0.006–0.017 m3 person−1 day−1 using the lowest and highest latrine BMP results, which was similar to the values from the full-scale system (0.011 m3 person−1 day−1), illustrating the ability of BMPs to be used to predict biogas production from sanitation digesters in a smaller-scale setting.