Municipal solid waste characteristics and management in Nigeria

Iranian Journal of Environmental Health Science & Engineering 01/2009; 6(3).
Source: DOAJ


Municipal solid waste management has emerged as one of the greatest challenges facing environmental protection agencies in developing countries. This study presents the current solid waste management practices and problems in Nigeria. Solid waste management is characterized by inefficient collection methods, insufficient coverage of the collection system and improper disposal. The waste density ranged from 280 to 370 kg/m3 and the waste generation rates ranged from 0.44 to 0.66 kg/capita/day. The common constraints faced environmental agencies include lack of institutional arrangement, insufficient financial resources, absence of bylaws and standards, inflexible work schedules, insufficient information on quantity and composition of waste, and inappropriate technology. The study suggested study of institutional, political, social, financial, economic and technical aspects of municipal solid waste management in order to achieve sustainable and effective solid waste management in Nigeria.

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    • "Saeed et al. (2009) however, argue that landfills have various environmental impacts. The environmental impacts of landfills are very costly especially in terms of health implications for those living around the landfill sites (Ogwueleka, 2009). The impacts of landfills may vary from one region to another depending on the types and composition of the wastes on the landfill and the terrains of an area (Suberu et al., 2012). "

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    • "Nsukka metropolis is one of the most populated urban centres in Enugu State, Nigeria with a 2009 population estimate of one hundred thousand , seven hundred (100,700) [11], and growing annually at an estimated rate of 3.0% and generating 0.39kg of municipal solid waste per person per day [12]. Nsukka is equally experiencing significant waste-related environmental problems. "
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    ABSTRACT: The continued concerns over energy prices, increase in population, and climate change issues have caused a need for alternative and new energy sources. Wastes are generally accepted as a renewable energy resource. With the growing demerits of fossil fuels, its finitude and its negative impact on the environment and public health, renewable energy is becoming a favoured emerging alternative. For over a millennium anaerobic digestion (AD) has been employed in treating organic waste (biomass). Since organic wastes are always available and unavoidable too, anaerobic digestion provides an efficient means of converting organic waste to profitable resources. Nsukka metropolis generates a large tonnage of municipal solid waste (MSW) per annum. This in turn has the potential of yielding biogas which is useful for heating and other domestic purposes. In this research, the potential of generating biogas (hence methane) from biodegradable components of municipal solid waste (MSW) found in Nsukka metropolis was assessed. Samples of MSW obtained from Anglican road dumpsite were characterized and experiments were carried out using a 32-litre bio-digester at the National Centre for Energy Research and development (NCERD) to obtain the daily biogas yield.
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    • "Nigeria is pestered by a myriad of environmental issues, of which a lack of proper solid waste management system is chief. The annual generation of municipal solid wastes (MSW) in Nigeria is 25 million tonnes (Ogwueleka, 2009) and this may increase due to rapid urbanization and population growth rate. Improper management of solid wastes has resulted in serious ecological, environmental and health problems. "
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    ABSTRACT: This study characterizes the leachates quality of an active dumpsite in Warri, Delta State and also analyses its contamination or pollution potential. Leachate Pollution Index (LPI) - a tool for quantifying pollution potential of leachates generated from dumpsites - has been used to quantify the leachates contamination potential of the dumpsite. The LPI values for the different sample locations L1, L2 and L3 were computed to be 5.69, 6.18 and 5.89 respectively with a mean value of 5.80, while the control had a value of 4.82. These LPI values were also compared with the LPI standard (7.38) for treated leachates. Comparison of the mean LPI value (5.80) with the standard (7.38) indicated a relatively low contamination potential of the leachates. Moreover, it was observed that the concentration of the individual parameters of the leachates is quite variable. The organic strength (BOD5 divided by COD) of the dumpsite was less than 0.5, while the pH values indicated that all sample locations in terms of age was mature, an indication of dumpsite stabilization. The study recommends continuous monitoring of leachates and upgrade to an engineered landfill to forestall possible pollution problems in future.
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