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New article at SIANI on turning wastewater into a resource and how this contributes to food security and climate action

less than 1 minute read

Published:

I recently wrote a blog post that has now been published on the website of the Swedish International Agriculture Network Initiative (SIANI). In the article, I explore how regions like Murcia, Spain, are addressing water scarcity and bolstering food security by reusing treated wastewater for agriculture. This practice not only sustains agricultural production but also contributes to climate mitigation and adaptation by recycling valuable nutrients and reducing greenhouse gas emissions. Emphasizing the need for innovative solutions in wastewater management, the article calls for greater engagement, efficient resource recovery, and strategic financing to overcome existing challenges to scaling up resource recovery from wastewater.

Knowledge mingle on plastic waste management at Kulturhuset

2 minute read

Published:

On Monday October 9, 2023, I had the opportunity to participate in a knowledge mingle event on plastic pollution and poverty alleviation, organized by Hand in Hand Sweden and Håll Sverige Rent at Kulturhuset Stadsteatern in Stockholm. The event aimed to raise awareness and foster dialogue on how plastic pollution and poverty are interrelated, and how we can work together to improve the situation for both the planet and the people.

Climate-resilient sanitation: three takeaways from World Water Week 2023

7 minute read

Published:

World Water Week 2023 underscored the urgent need for climate-resilient sanitation amid escalating climate change impacts. Despite growing awareness, challenges remain in understanding cause-effect relationships and securing adequate funding for sustainable sanitation systems.

Resource recovery in sanitation planning: What can decision support tools do for you?

1 minute read

Published:

Our paper “A review of how decision support tools address resource recovery in sanitation systems” has just been published, the result of a collaborative effort with colleagues Kim Andersson, Sarah Dickin, Elisabeth Ekener and Göran Finnveden. In this paper, we review 24 decision support software tools used for sanitation planning, and provide insights into how they address resource recovery across the sanitation service chain with regards to analysis of material flows, integrating resource recovery technologies and products in the design of sanitation systems, and assessing the sustainability implications of resource recovery.

Resources on the circular economy, energy and food

5 minute read

Published:

On this page, I provide a list of relevant resources related to circular economy, energy and food. The resources are provided as a reference for interested participants in circular economy related events at the Gothenburg International Science Festival 2023. You can use the links/URLs to access each resource.

Exploring the circular economy potential of Naivasha’s organic waste

6 minute read

Published:

Every day, Kenyan urban areas generate solid waste at the rate of 0.31 to 0.75 kg per person per day. Less than half of that waste is collected and only about 8% of it is recycled. The rest ends up in landfills and dump sites leading to pollution, adverse health impacts and degradation of the ecosystem.

The Kenya Sanitation Conference showed we know what to do – now it’s time to do it

6 minute read

Published:

The event proved sanitation discourse in Kenya has made great strides towards inclusiveness, realism and sustainability. Hopefully, we’ll see these values reflected in action. Kenya pays dearly for the gaps in its sanitation and hygiene services: total economic costs have been estimated at US$ 324 million annually. About 12.5% of Kenyans still practise open defecation and most of the population don’t have access to safely managed sanitation services, according to the latest report of WHO and UNICEF’s Joint Monitoring Program.

How to write a motivational letter

11 minute read

Published:

I am enthusiastic about higher education and its potential to not only enable people achieve their dreams, but also to contribute to the economy through the development of human capital. Therefore, I have always been glad to help people go about the procedures of applications and admissions to university education. This being a peak season for many universities’ admissions cycles, several colleagues have contacted me over the past month or so to help them, mostly to review and critique their motivational statement/letters. The more people I worked with, the more I thought about writing a general guide to help perhaps even more people go about the process of crafting a motivational statement that best presents their personality and hopefully helps them stand out from the huge crowd of applicants.

publications

Mentorship: a missing link in education in Sub-Saharan Africa

Ddiba, D. 2013. "Mentorship: a missing link in education in Sub-Saharan Africa." In proceedings of the 7th Education without Borders International Conference, 25 – 27 March 2013, Dubai, U.A.E.

Design of a model irrigation scheme that utilizes groundwater in the cattle corridor area of Uganda

Ddiba, D. and Namukwaya, B. D. 2013. "Design of a model irrigation scheme that utilizes groundwater in the cattle corridor area of Uganda." Final Year Project Report, Department of Civil and Environmental Engineering, Makerere University. doi:10.13140/RG.2.1.3986.7761

Faecal Sludge as Fuel in Industrial Kilns for Brick Production

Niwagaba, B. C., Ddiba, D., Sekigongo, P., Gold, M. & Strande, L. 2015. "Faecal sludge as fuel in industrial kilns for brick production." In proceedings of the 3rd International Conference on Faecal Sludge Management (FSM3), 18 – 23 January 2015, Hanoi, Vietnam.

Results of faecal sludge analyses in Kampala, Uganda: Pictures, characteristics and qualitative observations for 76 samples

Schoebitz, L., Bischoff, F., Ddiba, D., Okello, F., Nakazibwe, R., Niwagaba, C.B., Lohri, C.R. & Strande, L. 2016. "Results of faecal sludge analyses in Kampala, Uganda: Pictures, characteristics and qualitative observations for 76 samples." Eawag: Swiss Federal Institute of Aquatic Science and Technology. Dübendorf, Switzerland.

Estimating the potential for resource recovery from productive sanitation in urban areas

Ddiba, D. 2016. "Estimating the potential for resource recovery from productive sanitation in urban areas." KTH Royal institute of Technology, TRITA-LWR Degree Project 2016:13, 86 pp.

Resource Value Mapping (REVAMP): A tool for evaluating the resource recovery potential of urban waste streams

Ddiba, D., Andersson, K. and Rosemarin, A. 2016. "Resource Value Mapping (REVAMP): A tool for evaluating the resource recovery potential of urban waste streams." Discussion Brief. Stockholm Environment Institute: Stockholm.

SuSanA’s Contribution to Agenda 2030 for sustainable development: Position paper of Working Group 1 on Capacity Development

Spuhler, D., Adams, M., Ddiba, D. and Tempel, A. 2016. "SuSanA’s Contribution to Agenda 2030 for sustainable development: Position paper of Working Group 1 on Capacity Development." Sustainable Sanitation Alliance (SuSanA).

Faecal sludge as a solid industrial fuel: a pilot-scale study

Gold, M., Ddiba, D., Seck, A., Sekigongo, P., Diene, A., Diaw, S., Niang, S., Niwagaba, C. and Strande, L. 2017. "Faecal sludge as a solid industrial fuel: a pilot-scale study." Journal of Water Sanitation and Hygiene for Development 7(2), 243–251. doi:10.2166/washdev.2017.089

Estimating and visualizing the value of urban waste recovery – The Resource Value Mapping (REVAMP) Tool

Andersson, K. and Ddiba, D. 2017. "Estimating and visualizing the value of urban waste recovery – The Resource Value Mapping (REVAMP) Tool." In proceedings of the 2nd IWA International Resource Recovery Conference, 5 – 9 August 2017, New York, USA.

Linking water–sanitation–agricultural sectors for food and nutrition security

Schulte-Herbrüggen, H., Ddiba, D., Bhattacharya, P., Kimanzu, N., Andersson, K., Dickin, S., Schulte-Herbrüggen, B. 2017. "Linking water–sanitation–agricultural sectors for food and nutrition security." Swedish International Agricultural Network Initiative (SIANI) Discussion Brief. Stockholm, Sweden.

UrbanCircle: turning urban waste into circular economy benefits

Ddiba, D., Andersson, K. & Ogol, T. 2018. "UrbanCircle: turning urban waste into circular economy benefits." Stockholm Environment Institute (SEI) Project Brief. Stockholm, Sweden.

Bridging Gaps in the Agricultural Phosphorus Cycle from an Animal Husbandry Perspective — The Case of Pigs and Poultry

Oster, M., Reyer, H., Ball, E., Fornara, D., McKillen, J., Sørensen, K. K. U., Poulsen, H. D. H., Andersson, K., Ddiba, D., Rosemarin, A., Arata, L., Sckokai, P., Magowan, E. and Wimmers, K. 2018. "Bridging gaps in the agricultural phosphorus cycle from an animal husbandry perspective - The case of pigs and poultry." Sustainability 2018, 10(6), 1825. doi:10.3390/su10061825

Methods to reliably estimate faecal sludge quantities and qualities for the design of treatment technologies and management solutions

Strande, L., Schöbitz, L., Bischoff, F., Ddiba, D., Okello, F., Englund, M., Ward, B. J. and Niwagaba, C. B. 2018. "Methods to reliably estimate faecal sludge quantities and qualities for the design of treatment technologies and management solutions." Journal of Environmental Management 223, 898–907. doi:10.1016/j.jenvman.2018.06.100

Exploring the circular economy of urban organic waste in sub-Saharan Africa: opportunities and challenges

Ddiba, D. 2020. "Exploring the circular economy of urban organic waste in sub-Saharan Africa: opportunities and challenges." Licentiate Thesis Stockholm, Sweden: KTH Royal Institute of Technology, TRITA-ABE-DLT, 2016, 2020

Governing the circular economy: Assessing the capacity to implement resource-oriented sanitation and waste management systems in low-and middle-income countries

Ddiba, D., Andersson, K., Koop, S.H.A., Ekener, E., Finnveden, G. and Dickin, S. 2020. "Governing the circular economy: Assessing the capacity to implement resource-oriented sanitation and waste management systems in low- and middle-income countries." Earth System Governance 100063. doi:10.1016/j.esg.2020.100063

Setting the stage for the circular economy: Waste resource recovery opportunities in Naivasha, Kenya

Mugambi, J. K., Windberg, C., Ddiba, D., Ogol, T., Andersson, K., Gicheru, T. and Akinyi, E. 2020. "Setting the stage for the circular economy: Waste resource recovery opportunities in Naivasha, Kenya." Stockholm Environment Institute, Stockholm

Sanitation and Wastewater Atlas of Africa

AfDB, UNEP & GRID-Arendal. 2020. "Sanitation and Wastewater Atlas of Africa." African Development Bank, United Nations Environment Programme and GRID-Arendal. Abidjan, Nairobi and Arendal. (Several contributors including Daniel Ddiba)

The lack of social impact considerations in transitioning towards urban circular economies: a scoping review

Vanhuyse, F., Fejzić, E., Ddiba, D., & Henrysson, M. 2021. "The lack of social impact considerations in transitioning towards urban circular economies: a scoping review." Sustainable Cities and Society 75, 103394. doi:10.1016/j.scs.2021.103394

The circular economy potential of urban organic waste streams in low- and middle-income countries

Ddiba, D., Andersson, K., Rosemarin, A., Schulte-Herbrüggen, H., & Dickin, S. 2022. "The circular economy potential of urban organic waste streams in low- and middle-income countries." Environment, Development and Sustainability 24, 1116–1144. doi:10.1007/s10668-021-01487-w

Governance challenges and opportunities for implementing resource recovery from organic waste streams in urban areas of Latin America: insights from Chía, Colombia

Aguilar, M. G., Jaramillo, J. F., Ddiba, D., Páez, D. C., Rueda, H., Andersson, K., & Dickin, S. 2022. "Governance challenges and opportunities for implementing resource recovery from organic waste streams in urban areas of Latin America: insights from Chía, Colombia." Sustainable Production and Consumption 30, 53–63. doi:10.1016/j.spc.2021.11.025

Plastic waste management and recycling in Mombasa, Kenya: A scoping study of the value chain and its institutional, policy and regulatory frameworks

Njoroge, G., Nikam, J. and Ddiba, D. 2022. "Plastic waste management and recycling in Mombasa, Kenya: A scoping study of the value chain and its institutional, policy and regulatory frameworks." SEI report. Stockholm Environment Institute, Stockholm. doi:10.51414/sei2022.013

Implementing resource recovery from urban organic waste in low- and middle-income countries: Tools to support planners and policy makers

Ddiba, D. 2022. "Implementing resource recovery from urban organic waste in low- and middle-income countries: Tools to support planners and policy makers." PhD Thesis Stockholm, Sweden: KTH Royal Institute of Technology, TRITA-ABE-DLT, 2216, 2022

Energy from faeces: harnessing energy from one of the most abundant materials on the planet

Ddiba, D. 2022. "Energy from faeces: harnessing energy from one of the most abundant materials on the planet." In Towards the energy of the future – the invisible revolution behind the electrical socket (pp. 67–75). Vetenskap & Allmänhet. VA-rapport 2022:2. Stockholm, Sweden.

Analysis of the Plastic Waste Value Chain in India: A Scoping Study

Nikam, J., Ddiba, D. and Njoroge, G. 2022. "Analysis of the Plastic Waste Value Chain in India: A Scoping Study." SEI report. Stockholm Environment Institute, Stockholm. doi:10.51414/sei2022.037

Sustainability assessment of increased circularity of urban organic waste streams

Ddiba, D., Ekener, E., Lindkvist, M. and Finnveden, G. 2022. "Sustainability assessment of increased circularity of urban organic waste streams." Sustainable Production and Consumption 34, 114–129. doi:10.1016/j.spc.2022.08.030

A review of how decision support tools address resource recovery in sanitation systems

Ddiba, D., Andersson, K., Dickin, S., Ekener, E., & Finnveden, G. 2023. "A review of how decision support tools address resource recovery in sanitation systems." Journal of Environmental Management 342, 118365. doi:10.1016/j.jenvman.2023.118365

research

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