Abstract
Municipal solid waste (MSW) has contributed significantly to flooding in the Lagos metropolis. This study examined the volume of MSW generated using per capita waste generation, projected population, quantity of MSW collected and deposited at six landfills sites from 2007 to 2013. One thousand and twenty-five copies of a structured questionnaire were administered to obtain data. The points where MSW blocked drainage channels in the metropolis were mapped. Multiple regression was used to establish the association between flooding and MSW at p<0.05. A total of 77,757,749.8 tons of MSW was generated, while 27.7% of it was collected and deposited at six landfill sites from 2007 to 2013. 11% of the municipal solid waste was collected by the Lagos State Waste Management Authority, 9.9% by private sector service providers, 29.2% by cart pushers and 49.7% dumped in canals/lagoons. Weekly collection of MSW was 58.5%. The sampled buildings were flooded at an average of nine times. Two hundred and twenty-two points where MSW blocked drainage channels were identified. The municipal solid waste indicators were statistically significant at F2, 1022 = 1034.2, R2 = 0.669. The study recommends measures to enhance the strengths and address the weaknesses of the current approaches towards the attainment of global best practices in the management of MSW and flooding in the Lagos metropolis. Key words: Flood, municipal solid waste, generation, collection, drainage channels.
Highlights
The amount of municipal solid waste (MSW) generated in Nigerian cities keeps soaring as a result of increasing urban population and rapid urbanisation
This study revealed that only 9.9% of the respondents engaged registered Private Sector Service Providers (PSP) operators to dispose of their waste (Plate 2), while 29.2% patronised cart pushers (Plate 3)
The study revealed that the quantity of municipal solid waste generated outweighed the amount collected in the Lagos metropolis from 2007 to 2013
Summary
The amount of municipal solid waste (MSW) generated in Nigerian cities keeps soaring as a result of increasing urban population and rapid urbanisation. The volume of waste being generated continues to increase at a faster rate than the ability of the authorities to improve on the financial and technical resources needed to respond to this growth (Aderogba, 2012). The global generation of municipal solid waste in 1997 was 0.49 billion tons, with an estimated annual growth rate of 3.2 to 4.5% in developed nations and 2 to 3% in developing nations (Suocheng et al, 2001). An estimated 2.5 to 4 billion tons of waste was generated in 2006 globally, out of which municipal solid waste was 1.84 billion tons (Chandak, 2010).
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
