Potential Economic and Environmental Benefits of Faecal Sludge Derived Compost and Char Briquettes: The case of Dar es Salaam, Tanzania.
(2022) In Tanzania Journal of Science 48(2). p.383-393- Abstract
- The concept of resource recovery, particularly from waste has recently gained much attention and popularity. The aim of this study was to quantify the potential economic and environmental benefits of recovering nutrients and energy from faecal sludge (FS). The empirical data were collected from three unplanned settlements of Dar es Salaam City at Keko, Kipawa and Manzese. Two scenarios were developed to recover nutrients and energy. The estimations of potential amounts of compost and char briquettes were performed by using the resource value mapping (REVAMP) tool. Results from REVAMP indicated daily economic benefits across the study areas ranging between 680 and 950 USD for energy and up to 7,000 USD for nutrients recovered, based on the... (More)
- The concept of resource recovery, particularly from waste has recently gained much attention and popularity. The aim of this study was to quantify the potential economic and environmental benefits of recovering nutrients and energy from faecal sludge (FS). The empirical data were collected from three unplanned settlements of Dar es Salaam City at Keko, Kipawa and Manzese. Two scenarios were developed to recover nutrients and energy. The estimations of potential amounts of compost and char briquettes were performed by using the resource value mapping (REVAMP) tool. Results from REVAMP indicated daily economic benefits across the study areas ranging between 680 and 950 USD for energy and up to 7,000 USD for nutrients recovered, based on the faecal sludge composition. In general, FS derived compost was found more profitable than FS derived briquettes. The analyzed environmental benefits include saving the estimated to 5 hectares of forest area from being cut when substituting the use of wood charcoal with FS-derived briquettes. Since the composting process resulted to be more profitable option between the two, this study recommends the adoption and scaling up. However, guidelines and standards should be developed for proper practices. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/0f49a386-fb53-42ee-ad96-4ba201e4c368
- author
- Thomas Mkunde, Isabela LU ; Kimwaga, Richard and Gabrielsson, Sara LU
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Tanzania Journal of Science
- volume
- 48
- issue
- 2
- pages
- 11 pages
- publisher
- University of Dar es Salaam * Faculty of Science
- ISSN
- 0856-1761
- DOI
- 10.4314/tjs.v48i2.13
- language
- English
- LU publication?
- yes
- id
- 0f49a386-fb53-42ee-ad96-4ba201e4c368
- date added to LUP
- 2022-12-07 11:02:54
- date last changed
- 2022-12-07 13:36:33
@article{0f49a386-fb53-42ee-ad96-4ba201e4c368, abstract = {{The concept of resource recovery, particularly from waste has recently gained much attention and popularity. The aim of this study was to quantify the potential economic and environmental benefits of recovering nutrients and energy from faecal sludge (FS). The empirical data were collected from three unplanned settlements of Dar es Salaam City at Keko, Kipawa and Manzese. Two scenarios were developed to recover nutrients and energy. The estimations of potential amounts of compost and char briquettes were performed by using the resource value mapping (REVAMP) tool. Results from REVAMP indicated daily economic benefits across the study areas ranging between 680 and 950 USD for energy and up to 7,000 USD for nutrients recovered, based on the faecal sludge composition. In general, FS derived compost was found more profitable than FS derived briquettes. The analyzed environmental benefits include saving the estimated to 5 hectares of forest area from being cut when substituting the use of wood charcoal with FS-derived briquettes. Since the composting process resulted to be more profitable option between the two, this study recommends the adoption and scaling up. However, guidelines and standards should be developed for proper practices.}}, author = {{Thomas Mkunde, Isabela and Kimwaga, Richard and Gabrielsson, Sara}}, issn = {{0856-1761}}, language = {{eng}}, number = {{2}}, pages = {{383--393}}, publisher = {{University of Dar es Salaam * Faculty of Science}}, series = {{Tanzania Journal of Science}}, title = {{Potential Economic and Environmental Benefits of Faecal Sludge Derived Compost and Char Briquettes: The case of Dar es Salaam, Tanzania.}}, url = {{http://dx.doi.org/10.4314/tjs.v48i2.13}}, doi = {{10.4314/tjs.v48i2.13}}, volume = {{48}}, year = {{2022}}, }