Browsing by Author "Ojolowo, S. K."

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Application of geographic information systems to management of municipal solid waste depots in Lagos Island Local Government Area of Lagos State
(Scottish journal of arts, social sciences and scientific studies, 2013) Wahab, B.; Ojolowo, S. K.
The nature of socio-economic transactions taking place in Lagos Island every day makes solid waste management challenges more acute. These transactions generate large volume of waste which has become an environmental challenge because of poor refuse management strategies which do not match the rate of refuse generation. This study examines the underlying factors militating against efficient control of solid waste collection in Lagos Island by applying geographic information systems and conventional qualitative and quantitative research techniques to proffer possible solutions. A set of structured questionnaire was administered on 240 households in the six wards in Lagos Island that had waste depots to collect information on the mode of storage, transportation to communal waste depots and methods of disposal of solid waste in the area. However, only 215 copies (89%) of the questionnaire were retrieved for analysis. Digital analyses such as nearest neighbour, buffering, overlay and distance measurement were carried out with the aid of ArcMap 9.3 to reveal the geographical locations of solid waste depots, the spatial pattern of distribution, and distances covered by residents and traders to dispose solid waste. The existing 13 designated refuse depots were found to be grossly inadequate to facilitate effective evacuation of solid waste in Wards A, B, and C, while D, E, and F and G did not have waste bins. In the three wards where waste bins were provided, the distances of more than 200m between respondents’ residences and waste depots, as well as the complete absence of waste depots in others, encouraged patronage of illegal refuse collectors who disposed refuse indiscriminately. It is recommended that public awareness campaign be heightened and sustained and additional communal solid waste depots provided in Lagos Island to facilitate accessibility and reduce the distance usually covered by residents and traders to dispose refuse. This will promote prompt and healthy disposal of solid waste in Lagos Island and prevent possible incidence of enteric ailments
Application of indigenous knowledge to flood prevention and management
(African journal of sustainable development, 2012) Wahab, B.; Ojolowo, S. K.
"In the last three decades, flooding has become a nightmare associated with rainfall in all the continents of the world, as it records heavy casualties everywhere and each time it occurred. Flooding is now a big and seemingly unstoppable environmental threat to rural and urban settlements, in both developed and developing countries, regardless of their topographic traits (mountainous or lowland) and locations (coastal or landlocked). It is no longer limited to coastal communities, such as Vancouver, Bangkok and Manila or Lagos, Port-Harcourt, Warri, Sapele, Calabar, and Yenagoa in Nigeria, as many residents of landlocked cities, towns, and villages have been killed and properties destroyed by flash flood. Flooding has Significantly impacted peoples' housing, transportation, electricity, water and sanitation infrastructure, food and livelihood security. Engineering measures to address the effects of flooding through the provision of hydraulic structures seem inadequate. Indigenous knowledge (IK) has been practiced in rural communities over time to address disasters and it has been found to be effective in the protection of the lives and properties of the people and communities. This paper examines the application of indigenous knowledge to flood control and management in urban and rural communities in different parts -of the world. It reviews the traditional rain prediction and flood control mechanisms as well as the coping and adaptation strategies practiced in the communities as reflected in their IK. The paper argues that it is imperative to augment western flood control practices with indigenous load prediction and management skills to achieve sustainable flood prevention and control."
Rainwater harvesting: harnessing traditional approach to reduce flash floods in Ibadan metropolis
(Ibadan planning journal, 2013) Wahab, B.; Ojolowo, S. K.
This paper presents an empirical case study of domestic rainwater harvesting (RWH) techniques that could be employed to reduce surface run-off Equations were derived to calculate the potential amount of rainwater that could be harvested and the actual amount of rainwater harvested by 178 buildings with rainwater harvesting facilities at Coca-Cola Area on 26 August, 2011 when lbadan metropolis was devastated by flash flood. The study found that, through rooftop catchment techniques, as much as 90 per cent of runoff water could be harvested and that 100 per cent is achievable if augmented with surface catchment techniques for open spaces within the metropolis. The paper concludes that incorporating indigenous and modern rainwater harvesting techniques into the management of flood in Ibadan metropolis will not only mitigate the risks associated with flood, but will also enable sustainable access to domestic water and promote urban agriculture and household food security