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Impact Of Sanitary Landfills Towards Sustainable Development In Nigeria
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The city of Lagos with its teeming population has less than 50 Water
Supply Boards to cater to it in terms of water treatment and
distribution. It therefore relies rely mostly on bore holes and hand dug
wells for its water needs. The major environmental problem experienced
around the Solous landfill areas is the contamination of groundwater via
discharged leachate. Areas near landfills have great possibility of
groundwater contamination because of the potential pollution source of
leachate originating from the nearby site. Such contamination of
groundwater resource poses a substantial risk to local resource users
and to the natural environment. The impact of landfill leachate on the
surface and groundwater has given rise to a number of studies in recent
years (Mor et al., 2006). It is therefore important to study the water
quality in areas especially those around these landfill sites to examine
its impact on groundwater quality.
1.3 Research Objectives
The
aim of the research is to examine the impact of sanitary landfills
towards sustainable development in Nigeria. The research also considers
the effect of the location of dumpsites on the underground water quality
in Lagos State. To this effect, the study will particularly:
Examine the effect of distance from dumpsite on the physical, chemical and heavy metal properties of sampled groundwater.
Determine the effect of soil physical properties on the ground water quality in the study area.
Examine if there is variation in water quality among sampled groundwater sources
Compare the difference in the quality of sampled water with WHO and NSDWQ water quality standards.
1.4 Research Questions
What is the effect of distance from dumpsite on the physical, chemical and heavy metal properties of sampled groundwater?
What is the effect of soil physical properties on the ground water quality in the study area?
Is there any variation in water quality among sampled groundwater sources?
What is the impact of sanitary landfill towards sustainable development in Nigeria?
1.5 Significance of the Study
Seasonality
is the first criteria of the period of this research work because it
plays prominent role in waste degradation and groundwater migration.
Similar studies have also been carried out in the past during the rainy
season and this study monitors the sites to compare results over time.
This serves as the basis of the fieldwork being carried out in August,
2011 unlike either during the dry season when there is no water
ingression or during the excess rainfall which can easily dilute and
reduce parameter concentration. The study will also recommend measures
with which local authorities can continue to reduce pollutant levels
over time. The selected variables were based on their long life span and
being the common pollutants within the landfill, as well as their
degree of concentration in relation to groundwater migration. They have
been regarded as being responsible for various health problems, being
non-biodegradable, as well as their possibility of accumulation in the
food web. Despite the provision of pipe borne water by state government
in areas of the landfill, people still rely more on their dug-up wells
which are easily contaminated through seepage. Low literacy levels may
have influenced their choice of preference for dug-up wells. Some
physical parameters like taste, colour and odour are the main indicators
of water pollution to the people without taking into consideration the
other physical, chemical and biological variables of water.
This will
add to the body of existing literature on this research topic as well
as be a reference point for other researchers who want to write on a
related field or area in the nearest future.
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