Phillimon T. Odirile¹, Innocent Thukwi¹, Ontiretse Dintwa¹, Bontle Mbongwe²

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¹ Department of Civil Engineering, University of Botswana, Gaborone, Botswana.
² Department of Environmental Health, Faculty of Health Sciences, University of Botswana, Gaborone, Botswana.
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Abstract: In the past sanitation was the responsibility of Local Authorities or councils with the Department of Waste Management and Pollution Control (DWMPC). Pollution of groundwater in Botswana is currently forcing the Government of Botswana (GoB) to abandon pit latrine construction and Ventilated Improved Pit (VIP) emptying services in peri-urban areas. Currently Government has embarked on the expensive and unsustainable construction of sewer systems that require peri-urban communities to pay for connection fees. Most rural communities cannot afford these fees and since Botswana is a water scarce country, sewer connection may be costly for the country. This paper aims to review current practices, policies and challenges facing Botswana in Faecal Sludge Management (FSM). A desktop review was carried out to review policies, regulations, guidelines and strategies on waste management. A pretested questionnaire was administered among 50 randomly selected households to assess current practices in sludge management from two suburbs in Gaborone. Key informant interviews were undertaken among water and sanitation stakeholders to establish roles on waste management and faecal sludge management. Despite the disjointed efforts by stakeholders, Botswana has the potential to improve the FSM in the country. Though unsafe, FSM/pit emptying has the potential to provide income and employment to both the rural and urban poor and making it safe may have wider economic benefits.

Keywords: VIP Latrine, Faecal Sludge Management, Sanitation, Sludge Management Policy

Cite this paper: Odirile, P. , Thukwi, I. , Dintwa, O. and Mbongwe, B. (2018) Faecal Sludge Management in Botswana: A Review of Current Practices and Policies Using the Case of Gaborone Low Income Areas. Journal of Environmental Protection, 9, 122-139. doi: 10.4236/jep.2018.92010.

References

[1]   Gbodi, T.A., Nwude, N., Aliu, Y.O. and Ikediobi, C.O. (1986) The Mycoflora and Some Mycotoxins Found in Acha (Digitaria Exilis Stapf) in Plateau State, Nigeria. Food and Chemical Toxicology, 24, 339-342.
https://doi.org/10.1016/0278-6915(86)90012-8

[2]   Lewis, W., Farr, J. and Foster, S. (1980) The Pollution Hazard to Village Water Supplies in Eastern Botswana. Proceedings of the Institution of Civil Engineers, 69, 281-293.
https://doi.org/10.1680/iicep.1980.2538

[3]   Nkotagu, H. (1996) Origins of High Nitrate in Groundwater in Tanzania. Journal of African Earth Sciences, 22, 471-478.
https://doi.org/10.1016/0899-5362(96)00021-8

[4]   Reed, R. (1994) Why Pit Latrines Fail: Some Environmental Factors. Waterlines, 13, 5-7.
https://doi.org/10.3362/0262-8104.1994.036

[5]   R. Templeton, M., S. Hammoud, A., P. Butler, A., Braun, L., Foucher, J.-A., Patrice Jourda, J. (2015). Nitrate Pollution of Groundwater by Pit Latrines in Developing Countries. AIMS Environmental Science, 2, 302-313.
https://doi.org/10.3934/environsci.2015.2.302

[6]   Still, D. (2002) After the Pit Latrine Is Full… What Then? Effective Options for Pit Latrine Management. Biennial Conference of the Water Institute of Southern Africa, Durban, 19-23 May 2002.

[7]   Nakagiri, A., Niwagaba, C.B., Nyenje, P.M., Kulabako, R.N., Tumuhairwe, J.B. and Kansiime, F. (2015) Are Pit Latrines in Urban Areas of Sub-Saharan Africa Performing? A Review of Usage, Filling, Insects and Odour Nuisances. BMC Public Health, 16, 120.
https://doi.org/10.1186/s12889-016-2772-z

[8]   Statistics Botswana (2011) Botswana Statistical Year Book 2010. Department of Printing and Publishing Services, Gaborone, Botswana.

[9]   Acquah, B., Kapunda, S., Legwegoh, A., Gwebu, T., Modie-Moroka, T., Gobotswang, K. and Mosha, A. (2013) The State of Food Insecurity in Gaborone, Botswana. AFSUN Food Security Series 17. http://www.afsun.org/wp-content/uploads/2016/06/AFSUN17.pdf

[10]   World Bank (2007) Mellenium Development Goals: Confronting the Challenges of Genda Equality and Fragile States. Global Monitoring Report.
http://dx.doi.org/10.1596/978-0-8213-6975-3

[11]   WHO & UNICEF (2013) Progress on Drinking Water and Sanitation. Joint Water Supply and Sanitation Monitoring Programme.

[12]   Bakare, B., Nwaneri, C., Foxon, K., Brouckaert, C., Still, D. and Buckley, C. (2010) Pit Latrine Additives: Laboratory and Field Trials. Proceedings WISA Biennial Conference & Exhibition, Durban, 18-22 April 2010.

[13]   Banerjee, S.G. and Morella, E. (2011) Africa’s Water and Sanitation Infrastructure: Access, Affordability, and Alternatives. Background Paper No. 60864, Africa Infrastructure Country Diagnostic (AICD) World Bank, Washington DC.
https://doi.org/10.1596/978-0-8213-8457-2

[14]   Jackson, B.M. (1998) Are We Exagerating the Dangers of Groundwater Pollution from On-Site Sanitation Systems Such as Pit Latrines? Borehole Water Journal, 40, 18-21.

[15]   Jacks, G., Sefe, F., Carling, M., Hammar, M. and Letsamao, P. (1999) Tentative Nitrogen Budget for Pit Latrines-Eastern Botswana. Environmental Geology, 38, 199-203.
https://doi.org/10.1007/s002540050415

[16]   World Bank (2009) Republic of Botswana Technical Assistance for Reform of the Water and Sanitation Sector. Final Report.

[17]   Bakare, B., Foxon, K., Brouckaert, C. and Buckley, C. (2012) Variation in VIP Latrine Sludge Contents. Water SA, 38, 479-486.
https://doi.org/10.4314/wsa.v38i4.2

[18]   Mara, D. (1996) Low-Cost Urban Sanitation. John Wiley & Sons, Hoboken.

[19]   Strauss, M. and Montangero, A. (2002) Faecal Sludge Management-Review of Practices, Problems and Initiatives.

[20]   Still, D., Salisbury, R., Foxon, K., Buckley, C. and Bhagwan, J. (2010) The Challenges of Dealing with Full VIP Latrines. Proceedings WISA Biennial Conference & Exhibition, Durban, 18-22 Apri 2010.

[21]   Pickford, J. (1997) Technical Brief No. 54: Emptying Pit Latrines. Waterlines, 16, 15-18.
https://doi.org/10.3362/0262-8104.1997.044

[22]   Van Nostrand, J., Wilson, J.G., UNDP and Technical Advisory Group (TAG) (1983) The Ventilated Improved Double Pit Latrine: A Construction Manual for Botswana. Technical Advisory Group Technical Note No. 3, World Bank, Washington DC.
http://documents.worldbank.org/curated/en/392701468769776606/

[23]   Thye, Y.P., Templeton, M.R. and Ali, M. (2011) A Critical Review of Technologies for Pit Latrine Emptying in Developing Countries. Critical Reviews in Environmental Science and Technology, 41, 1793-1819.
https://doi.org/10.1080/10643389.2010.481593

[24]   van Ryneveld, M. and Fourie, A. (1997) A Strategy for Evaluating the Environmental Impact of On-Site Sanitation Systems. Water SA, 23, 279-291.

[25]   Tandia, A., Diop, E. and Gaye, C. (1999) Pollution par les nitrates des nappes phréatiques sous environnement semi-urbain non assaini: Example de la nappe de Yeumbeul, Sénégal. Journal of African Earth Sciences, 29, 809-822.
https://doi.org/10.1016/S0899-5362(99)00131-1

[26]   Vinger, B., Hlophe, M. and Selvaratnam, M. (2012) Relationship between Nitrogenous Pollution of Borehole Waters and Distances Separating Them from Pit Latrines and Fertilized Fields. Life Science Journal, 9, 402-407.

[27]   Bassan, M. (2014) Institutional Frameworks for Faecal Sludge Management. In: Strande, L., Ronteltap, M. and Brdjanovic, D., Eds., Faecal Sludge Management: Systems Approach for Implementation and Operation, International Water Association, London, 255-272.

[28]   Agyei, P.A., Awuah, E. and Oduro-Kwarteng, S. (2011) Faecal Sludge Management in Madina, Ghana. Journal of Applied Technology in Environmental Sanitation, 1, 239-249.

[29]   Ngole, V., Otlogetswe, T. and Sisai, M. (2006) The Effect of Ageing on the Fertilizer Value of Sludge from Botswana. Journal of Applied Sciences and Environmental Management, 10, 109-115.
https://doi.org/10.4314/jasem.v10i3.17329

[30]   Stacey, S., Merrington, G. and McLaughlin, M.J. (2001) The Effect of Aging Biosolids on the Availability of Cadmium and Zinc in Soil. European Journal of Soil Science, 52, 313-321.
https://doi.org/10.1046/j.1365-2389.2001.00376.x

[31]   Lindsay, B.J. and Logan, T.J. (1998) Field Response of Soil Physical Properties to Sewage Sludge. Journal of Environmental Quality, 27, 534-542.
https://doi.org/10.2134/jeq1998.00472425002700030009x

[32]   Veeresh, H., Tripathy, S., Chaudhuri, D., Ghosh, B., Hart, B. and Powell, M. (2003) Changes in Physical and Chemical Properties of Three Soil Types in India as a Result of Amendment with Fly Ash and Sewage Sludge. Environmental Earth Sciences, 43, 513-520.

[33]   Winkler, M.S., Fuhrimann, S., Pham-Duc, P., Cissé, G., Utzinger, J. and Nguyen-Viet, H. (2017) Assessing Potential Health Impacts of Waste Recovery and Reuse Business Models in Hanoi, Vietnam. International Journal of Public Health, 62, 7-16.
https://doi.org/10.1007/s00038-016-0877-x

[34]   Schöbitz, L., Zurbrügg, C., Gebauer, H. and Strande, L. (2013) Waste Based Business Models for Recovery. Sandec News.
https://www.dora.lib4ri.ch/eawag/islandora/object/eawag:10206

[35]   Boot, N. (2008) The Use of Transfer Stations for Faecal Sludge Management in Accra, Ghana. Waterlines, 27, 71-81.
https://doi.org/10.3362/1756-3488.2008.007

[36]   Steiner, M., Montangero, A., Koné, D. and Strauss, M. (2002) Economic Aspects of Low-Cost Faecal Sludge Management. Estimation of Collection, Haulage, Treatment and Disposal/Reuse Cost. EAWAG/SANDEC, Dübendorf.

[37]   Bolaane, B. and Ikgopoleng, H. (2011) Cost Recovery in Waterborne Sanitation: Cases in Botswana. Proceedings of the Institution of Civil Engineers—Engineering Sustainability, 164, 275-286.
https://doi.org/10.1680/ensu.2011.164.4.275

[38]   Vesilind, P. (2000) Sludge Disposal: Ethics and Expediency. Water Science and Technology, 42, 1-5.