Content uploaded by Aliyu baba Nabegu
Author content
All content in this area was uploaded by Aliyu baba Nabegu
Content may be subject to copyright.
© Kamla-Raj 2010 J Hum Ecol, 31(2): 111-119 (2010)
An Analysis of Municipal Solid Waste in
Kano Metropolis, Nigeria
Aliyu Baba Nabegu
Department of Geography, Kano University of Science and Technology,
Wudil, Kano State, Nigeria
E-mail: marpelione@hotmail.com
KEYWORDS Waste Density. Waste Recycling. Waste Generation. Waste Composition. Waste Disposal. Waste
Management
ABSTRACT This paper reports the result of municipal solid waste analysis undertaken in Kano metropolis through
the collection of secondary data from the government agency (Refuse Management and Sanitation Board, REMASAB)
responsible for the management of solid waste, interviews with stakeholders and field surveys specifically to address
the apparent gap in this information that is crucial for successful management. Field surveys were carried out in three
residential zones that are representative samples of the city to understand the practice and identify the lacunae. The
results show that the household sector in Kano metropolis produces the largest amount of waste in the city accounting
for 62.5% and the waste generated by various institutions in Kano accounts for only 5.8%, while industries located
within residential areas contributed 2.9%. It is estimated that Kano metropolis generates about 3085 tones of solid
waste per day. It is also found that Kano metropolis’s solid waste consists to a large extent of organic and other
biodegradable matter (43%) and constitutes 68.26% by weight of solid waste generated in the study area. The results
indicate that that solid waste is not properly managed since there is no ideal landfill and recycling is limited. The paper
highlighted the implications of the result for the environment and sustainable management of solid waste. For
example, because of poor management ,the waste emits dangerous gases into the atmosphere and bacterial isolates
were recovered from the waste sample, three of which were coliform bacterial (E. coli, Klebsielle sp and Shigella sp.).
It is recommended, among other things, that the government should put in place facilities and opportunities to
enhance proper management of solid waste and promote recycling and reuse of waste and should embark on
environmental awareness campaigns to sensitize the citizen develop the right attitude about waste disposal.
1. INTRODUCTION
Proper management of solid waste is critical
to the health and well-being of urban residents
(World Bank 2003). In Kano metropolis ,like most
cities in the developing world, several tons of
municipal solid waste is left uncollected on the
streets each day, clogging drains, creating feeding
ground for pests that spread disease and creating
a myriad of related health and infrastructural
problems. A substantial part of the urban
residents in the old city and suburban informal
settlements of Kano metropolis also have little or
no access to solid waste collection services. This
is due to lack of proper land use planning which
resulted in the creation of informal settlements
with narrow streets that make it difficult for
collection trucks to reach many areas. The result
is that a large portion of the population is left
without access to solid waste management
making them particularly vulnerable (Nabegu
2008a).
Municipal solid waste management is an
important part of the urban infrastructure that
ensures the protection of environment and human
health (World Bank 2002, 2003). The accelerated
growth of urban population with unplanned
urbanization, increasing economic activities and
lack of training in modern solid waste management
practices in developing countries complicates the
efforts to improve solid waste services. The
changes in consumption patterns with alterations
in the waste characteristics have also resulted in
a quantum jump in solid waste generation
(Ludwig et al. 2003). In addition, solid waste
management is hampered by a lack of data at all
levels from the ward, district and municipality,
and where available, is generally unreliable,
scattered and unorganized (World Bank 2002,
2003). As a result, planning of solid waste
management has remained a difficult task.
Some studies have been carried out on waste
management in Kano metropolis. Saleh (2008)
studied the contributions made by scavengers
and showed that over 25,000 people are directly
involved in the activity and that 15% of municipal
solid waste that would have gone in to the
municipal solid waste stream is removed by them.
Nabegu (2008) investigated the operations of the
state agency responsible for waste management
112 ALIYU BABA NABEGU
in the metropolis and reported that a significant
portion of the population, 80%, does not have
access to waste collection services, only 20% of
the waste generated is actually collected and vast
majority of users of the service 92% consider the
service very poor. The economic potentials and
organization of the informal plastic waste
recovery sector was also studied which showed
that besides being a source of livelihood for nearly
30,000 individuals, it provides cheap raw materials
for plastic industries (Mukhtar 2008).
Composition of municipal solid waste
provides a description of the constituents of the
waste and it differs widely from place to place
(Kuruparan et al. 2003). The most striking
difference is the difference in organic content
which is much higher in the low income areas
than the high income, while the paper and plastic
content is much higher in high income areas than
low income areas. This reflects the difference in
consumption pattern, cultural and educational
differences. In higher income areas disposable
material and packaged food are used in higher
quantities; this results in the waste having higher
calorific value, lower specific density and lower
moisture content. In the case of lower income
areas, the usage of fresh vegetables to packaged
food is much higher. This results in a waste
composition that has high moisture content, high
specific weight and low calorific value (Dhussa
et al. 2000; Klundert and Scheinberg 2001).
The ‘blind technology transfer’ of machinery
from developed countries to developing countries
and its subsequent failure has brought attention
to the need for appropriate technology (Beukering
et al. 1999) to suit the conditions in developing
countries (type of waste, composition, etc.).
Identification of waste composition is thus, crucial
for the selection of the most appropriate
technology for treatment, taking essential health
precautions and space needed for the treatment
facilities. Despite this recognition, there has been
no study on the analysis of municipal waste
composition in Kano metropolis. This paper
attempts to fill this gap by providing data on the
composition, and sources of municipal waste in
three different zones of the city for the purpose
of understanding the type of waste generated,
waste flow and implication for management.
2. STUDY AREA AND METHODOLOGY
Kano is the largest city in the Sudan Region
of Nigeria. It is located between latitude 12o 25 to
12o 40N and longitude 8o 35N to 8o 45E. Kano city
has for centuries been the most important com-
mercial and industrial nerve centre of Northern
Nigeria attracting millions from all parts of the
country and beyond. Immigration and natural
growth rate of 3% is expected to continue to
increase the population and waste stream in the
years to come. With a population presently
estimated at 3.5 million, Kano metropolis is among
the fastest growing cities in Nigeria. With a
population density of about 1000 inhabitants per
km2 within the Kano closed-settled zone compar-
ed to the national average of 267 inhabitants per
km2. It is also one of the most crowded. The city
also has a large migrant worker population which
has been increasing at the rate of 30 to 40 per
cent per annum (UNDP 2004). These figures
indicate that waste generation is likely to be
significant in Kano metropolis and that its
management would require innovative strategies.
The climate of the study area is the tropical
wet and dry Aw by Koppen’s classification.
Climatic factors play a crucial role in the municipal
waste management of the study area. For
example, during the wet season, heat and
humidity cause the municipal solid waste to be of
higher moisture content thus increasing the
weight of the refuse. In addition, high humidity
with heat causes the organic portion of the waste
to decompose quickly leading to problems in
handling and disposal, which directly affects the
environmental health of the waste workers and
the inhabitants.
The study was organized in stages as follows:
Stage 1: This stage involved a desk study in
which documents and records relating to
municipal solid waste management in Kano
metropolis, by the Refuse Management and
Sanitation Board (REMASAB), were studied to
obtain background information as well as data
on existing municipal solid waste management in
the city.
Stage 2: This stage involved interviews with
department heads from REMASAB. Information
obtained was used to update the data collected
during the desk study. The questionnaire was
structured to capture the operation, finance,
management; problem and future projection of
the agency and the understanding of the staff of
the agency on the identified problems were
captured from the questionnaire.
Stage 3: Twenty- five residents, each from
113
AN ANALYSIS OF MUNICIPAL SOLID WASTE IN KANO METROPOLIS, NIGERIA
three identified residential zones selected , which
represents 10% of the total residents that volun-
teered to provide information. The questions
asked during the interviews were tailored to derive
information on coverage of the service, avai-
lability of disposal/collection points, general
assessment of the services, perceived problems
as well as solutions, willingness to pay for the
services etc and examination of household waste
generation through segregation and physical
separation of waste components over a period of
three month. To determine sample locations
within Kano metropolis, a basic knowledge of the
urban area of Kano was helpful, guided by the
assertion of Gordon (1983) that an urban area is
usually defined to comprise of three levels within
which data could be collected: the city proper (in
this study the old walled city), metropolitan
transition area (in this study the G.R.A.) and urban
agglomeration (in this study suburban area).
Identified residential zones were subdivided into
equal grids using Kano metropolis as base map.
Table of Random Numbers was used to choose
the study areas.
In addition to the above, twenty- five people
involved in scavenging which represents 14%
of those in the activity that were willing to partake
in the study were randomly selected for interview.
Morphological and Biochemical tests to identify
the bacterial isolates were carried out on samples
collected from dump sites in the three identified
zones in accordance with methods described by
Corry et al. (1982). Bulk density, weight and waste
composition was determined by manual separa-
tion and weighing to determine the bulk charac-
teristics of the different samples.
Stage 4: The researcher also participated in
the day to day operation of the agency during
which valuable operational difficulties were
experienced firsthand.
3. RESULTS AND DISCUSSION
3.1 Sources of Municipal Solid Waste
Table 1 shows the contribution of identified
sources of municipal solid waste in Kano
metropolis. The household sector in Kano
metropolis produces the largest amount of waste
in the city accounting for 62.5%. This is in
contrast to a study of Bangalore, India, where
commercial sector was reported to account for
the largest amount of 39% (Rotich et al. 2006;
Ramachandra and Bachamanda 2007). The
differences between Kano and Bangalore can be
explained by the fact that even though the two
cities are in developing countries, enormous
variation exists in the level of development
between them in terms of the size of the middle
class where Bangalore has 28% of its urban
population made up of middle class and Kano
metropolis less 8%. There is also a difference in
culture which impacts on the sources and types
of waste generation.
The waste generated by various institutions
located in Kano accounts for only about 5.8 per
cent. Industries located within residential areas
generate a small amount of solid waste, 2.9% and
most of it is recovered for recycling and reuse,
and only a small per cent finds its way into the
city waste stream.
S. No. Sources Percentage
1 Residential 62.5
2 Commercial 26.9
3 Industrial 2.9
4 Institutional 5.8
5 Others 1.9
Source: Fieldwork 2007
Table 1: Sources of municipal solid waste in Kano
metropolis
3.2 Waste Type, Composition and Quantum
According to estimates, by the state agency
responsible for waste management in Kano
metropolis, the city generates currently approxi-
mately 3,000 tones of solid waste per day. How-
ever, from the research, it was estimated that Kano
metropolis generates about 3085 tones of solid
waste per day. The difference is mainly due to the
fact that in this study, waste from industries
located within residential areas is also considered
as a compo-nent of the total urban solid waste
generated in Kano metropolis.
From the samples of solid wastes collected
from the different dump sites and sampled
households in the three zones, eight different
types of wastes were categorized. These are food
scarp, paper cardboard, textile and rubber, plastic
material, glass, metal, ash and dirt and vege-
tables. Table 2 shows the different categories of
waste observed in the three residential zones of
Kano metropolis.
Analysis of waste type shows that Kano
metropolis’s solid waste consists to a large extent
of organic and other biodegradable matter (43 %)
114 ALIYU BABA NABEGU
materials are segregated at source for reuse
(Nabegu 2008b).
However, despite the low presence of non-
biodegradable wastes in the dump sites, it has
nonetheless, led to economic utilization of such
wastes, since the recycling and re-use of non-
biodegradable wastes into new forms is now a
common practice. Though informally organized,
it provides a substantial employment in view of
the fact that a ready market exists in the many
industrial enterprises located in Kano. It was
estimated that there are roughly 25,000 waste
pickers in the city whose average per capita
collection is about 15 kilograms per day. Collecting
about 312 tones of waste per day, the waste
pickers recover about 10 % of waste generated.
The waste collected goes to various small and
large recycling units located in the city. Formal
involvement of government in this sector will in
no small way help reduce youth unemployment
and reduce the volume of waste and provide cheap
raw material to industry (Saleh 2008; Mukhtar
2008; Nabegu 2008a).
3.3 Waste Bulk and Density
Further analysis of waste reveal that the waste
in Kano metropolis can be categorized in to two
types: namely, the rather light and predominantly
non-biodegradable waste in the G.R.A.and the
heavier biodegradable waste in the city and the
suburban zones. Table 3 shows the percentage
bulk weight of the different items of waste in the
three zones. Biodegradable wastes accounts for
68.26% of the average weight of the entire waste
samples, while the non-biodegradable had
31.74%, showing clearly the predominant waste
in Kano metropolis is biodegradable. However,
marked variations exist among the zones. Thus,
in the GRA, a total of 57.84% of the waste consists
of non-biodegradable, whereas the city has only
20% and the suburban zone 22.86%. Differences
in the type of waste among the zones reflect the
differences in standard of living and consumption
pattern between the zones.
The study shows a specific density of 0.31m3
and average weight of 564kg/ in a cubic meter in
G.R.A., while in the city the yield was 923kg per
cubic meter with a specific density of 0.55tm3 and
in the suburban zones it was 1030kg per cubic
meter with a specific density of 0.63t/m3. However
from comparative studies from Kaduna and Jos,
the two biggest cities close to Kano, domestic
and the 57% non biodegradable made up of
substantially dirt, ash and other household trash
- typical of low income developing country
(Ramachandra and Bachanda 2007). Due to the
composition of the waste, especially the findings
in this study of substantial presence of faecal
matter in the waste, many health and environ-
mental issues are foreseen.
Biodegradable wastes which are generated in
very high quantity, could however, be diverted
from the dumpsites and landfills, effectively
reducing the bulk of municipal solid waste for
disposal and the space required for the purpose
causing a reduction in the municipal expenses.
The diverted organic waste could be utilized by
adopting appropriate technologies for processing
it into bio-fertilizers or as a source of green energy.
While promoting sustainability, it would help
prevent the degradation of the urban environ-
ment. By integrating the principles of sustain-
ability and resource efficiency into our consumer
culture, we can begin a transition away from the
end-of-the-pipe practice of waste disposal, such
as containment, remediation and pollution control
to a process that maximizes recovery of resources,
eliminates toxic materials, prevents pollution, and
minimizes the economic liabilities associated with
environmental degradation and clean-up
activities. Waste management invest-ments can
then be shifted to resource recovery and
development strategies that could relieve the
governments of the heavy burden of financing
and managing the waste disposal systems.
The percentage of recyclables like paper,
glass, plastics, metals, cardboard, packaging
material and rubber is negligible. Although econo-
mic prosperity is one reason for the generation of
more recyclables waste materials, as observed in
developed countries (Chandarasekar 2002), the
low content in Kano metropolis may also be
explained by the fact that traditionally such waste
Categories City G.R.A. Suburban
Food scrap 38 5 40
Paper cardboard 6 34 5
Textile rubber 7 10 4
Plastic material 10 17 6
Metal 5 20 3
Glass 7 12 1
Ash, dirt 18 1 20
Vegetable 9 1 21
Source: Fieldwork 2007
Table 2: Waste type and composition in three
residential zones of Kano metropolis
115
AN ANALYSIS OF MUNICIPAL SOLID WASTE IN KANO METROPOLIS, NIGERIA
bacteria thrive in landfills with high amounts of
moisture. Methane concentrations can reach up
to 50% of the composition of landfill gas at
maximum anaerobic decomposition (Cointreau
1997). In the absence of proper methane venting
and/or flaring, the gas seeps into porous soil
surrounding the waste and eventually migrates
into homes, posing risk. Carbon dioxide is a second
predominant gas emitted by landfills; although
less reactive, buildup in nearby homes could be a
cause of asphyxiation.
A second problem with these gases is their
contribution to the greenhouse gasses (GHGs)
which are blamed for global warming. Both gases
are major constituents of the world’s problem
GHGs; however while carbon dioxide is readily
absorbed for use in photosynthesis; methane is
less easily broken down, and is considered 20
times more potent as a GHG (Johanesen 1999).
Hoornweg et al. (1999) state that for every metric
ton of unsorted municipal solid waste (containing
0.3 Mt carbon), 0.2 Mt are converted to landfill
gasses. Of this gas, carbon dioxide and methane
each comprise .09 Mt. Since it is believed that
landfill gasses supply 50% of human-caused
methane emissions and 2-4% of all worldwide
greenhouse gases (Johanesen 1999), this is clearly
an area of concern in global environmental issues.
Also, as a result of the dearth and high cost
of chemical fertilizers, farmers directly use
domestic waste in agriculture (Nabegu 2008). Due
to the composition of the waste, especially the
findings in this study of substantial presence of
faecal matter in the waste many health and
environmental issues are foreseen.
3.4 Occurance of Bacterial Flora
Table 4 shows the cumulative percentage
occurrence of the bacterial flora isolated from 30
samples of the wastes. Of the six bacterial isolates
recovered from the waste sample, three were
coliform bacterial (E. coli, Klebsielle sp and
Shigella sp.). Percentage occurrence of Shigella
sp, and Klebsiella sp did not also differ signi-
ficantly (p<0.05). Shigella sp and Proteus sp had
the same percentage occurrence. Presence of
coliforms such as E.coli, Klebsiella sp clearly
indicates that the waste in the zones, especially
the city and suburban areas is contaminated with
faecal matter. All the bacterial isolates recovered
from the waste samples in the three zones have
been directly implicated in food borne infections
Type of waste G.R.A Sub-urban City
(%) (%) (%)
Food scrap 4.20 30.84 31.56
News paper 17.20 2.90 2.10
vegetables 13.30 23.00 22.00
Textile 9.30 4.60 3.80
Glass 20.55 3.96 2.75
Metal 9.49 2.60 2.20
Rubber/Plastic 18.50 11.70 11.30
Ash 1.10 18.30 22.5.4
Miscellaneous paper 6.35 2.10 1.74
Source: Fieldwork 2007
Table 3: Percentage waste bulk collected in the
three zones
solid waste yield is 1120kg/cubic meter while the
Specific density is 0.4t/m3. Lower figures found
in this study indicate that the substantial loss in
weight and bulk is probably a result of incineration
and decomposition as a result of the long
intermediate storage at the collection points.
A high solid waste density also has many
implications for the ‘traditional’ methods of
collection and disposal; collection and transfer
trucks which are able to achieve compression rates
of up to 4: 1 in industrialized nations may achieve
only 1.5:1 in Kano GRA and much less in the city
and the suburban areas, and landfill compression
technology which averages volume reduction of
up to 6: 1 in industrial nations may only achieve
2: 1 compaction with increased waste densities.
Compactor trucks would, therefore, probably not
be useful in the city and the sub urban areas. In
the GRA, which has relatively less waste density,
such technologies may be more appropriate. Addi-
tionally, the high moisture content and organic
composition of wastes in the city and suburban
areas may lead to problems of increased decom-
position rates, with high average daily tempera-
tures high moisture during the rainy season would
only compound these problems presenting addi-
tional challenges with insect populations and
conditions conducive to disease.
Decomposition of waste into constituent che-
micals is a common source of local environmental
pollution which is again compounded by the
issues associated with rapid urbanization. As land
becomes scarce, human settlements encroach
upon landfill space, and local governments in some
cases encourage new development directly on
top of operating or recently closed landfills. A
major environmental concern is gas release by
decomposing garbage. Methane is a by-product
of the anaerobic respiration of bacteria, and these
116 ALIYU BABA NABEGU
A majority (69%) of the respondents are of
the view that the services cover no more than
20% of the city residents. Thus, solid waste
collection in Kano metropolis extends to only a
limited part of the population. One of the main
reasons limiting coverage is the lack of
accessibility to most areas of the old city and the
new settlements on the fringe of the city. The old
city predates town planning as we know it today,
consequently most of the alleys leading to the
city are too narrow to allow equipments to access
the waste. The new areas on the fringes are
inhabited mostly by low income immigrants and
those who have moved out of the city and are
built without planning. A number of options have
been considered to solve this problem including
the use of donkeys to evacuate the waste to
collection centers that are accessible. A further
option is to use small providers’ of service from
the community as practiced with some measure
of success in Lagos. The providers of this service
evacuate waste from individual houses often
using simple hand push trucks from places where
conventional equipment can not access. This
system can provide also the much needed
employment for the teeming youths of the city.
3.6 Waste Disposal Practice
Table 6 shows the various waste disposal
practices in Kano metropolis. More than two- third
of the residents do not use authorized dumpsite
for their waste.
According to the state agency responsible
for waste management- refuse management and
sanitation board (REMASAB), solid waste in
Kano metropolis is to be dumped by the public at
designated collection areas which are made up of
Place %
REMASAB bin 3.75
Authorized dump site 16.25
Unauthorized empty plot 66.25
Burning 3.75
Personal bin 13.25
Source: Fieldwork 2007
Table 6: Disposal methods by residents
Bacteria isolate% Occurrence of bacterial isolate
G.R.A City Suburban
Samonella Sp 16.10 39.40 46.70
Klebsiella Sp 22.30 41.60 43.30
Proteus Sp 11.70 31.80 33.30
Escherichia coli 56.40 88.90 86.70
Staphylococus aureus 43.80 80.60 76.70
Shigella 27.60 45.20 43.30
Source: Laboratory Analysis 2007
Table 4: Percentage frequency occurance of
bacterial isolate from waste dump in the three
zones
such as typhoid, diarrhea and gastroenteritis.
These diseases occur sparingly in all the zones.
Human fecal matter presence in all the solid
waste dump sites of the three zones in Kano
metropolis presents a potential health problem
not only to waste workers, but also to scavengers,
other users of the same municipal drop-off point,
and even small children who like to play in or
around waste containers. The usual disease
pathways include placing contaminated hands
in the mouth or eating food, through vector
insects such as cockroaches or mosquitoes, or
by directly inhaling airborne dust particles
contaminated with pollutants
In this study, it was also observed that wastes
were dumped in the open space on the street at
close proximity to the houses and public places
and some were dumped very close to the river,
while others were dumped right into the river,
especially in the city and the suburban zones.
Disposal of solid wastes into water bodies may
be detrimental to aquatic organisms. This
assertion is supported by CPCB (2000), that
bacteria like E.coli often lead to depletion of the
dissolved oxygen, thereby endangering the
survival of aquatic organisms. Release of wastes
with high quantity of nitrates and phosphate
compounds into rivers could result in obnoxious
algae blooms (Moss et al. 2008). Wastes disposed
at Yan Awaki (city) along and inside the Jakara
river could also be washed down by rain and
flood into larger water bodies which are used for
irrigation and water supply to many communities
from the Wasai dam where the Jakara river was
impounded posing serious health hazards.
3.5 Waste Management Service Coverage
Table 5 shows the perception of respondents
as to the extent of coverage in the provision of
waste collection services in Kano metropolis.
Coverage Percentage
Up to 20% 69
Up to 30% 23
More than 50% 7
Source: Fieldwork 2007
Table 5: Municipal solid waste service coverage
117
AN ANALYSIS OF MUNICIPAL SOLID WASTE IN KANO METROPOLIS, NIGERIA
metal boxes that are easily loaded on to trucks
mechanically or made of block. Even where these
are available, the waste are thrown in a more or
less uncontrolled manner and the file of waste
does not allow free access to waste points and
often produce unpleasant and hazardous smoke
from slow burning fires. The present disposal
situation is expected to deteriorate even more with
rapid urbanization, as settlements and housing
continue to encircle the existing dump and the
environmental degradation associated with these
dumps directly affect the population.
However, the practice of disposing mixed
waste without treatment has a price to pay in
terms of collection, transport and disposal costs,
loss of valuables (recyclables, reusable and
repairable) and the impact on the environment
due to air, water and soil pollutions, and
associated health risks that ultimately impact the
economy. This economic impact creates lack of
resources for municipal solid waste management
and hence a vicious cycle is generated unless
remedial measures are taken to break the circuit,
the cycle continues and expands leading to
further environmental degradation.
It was also observed in this study, even the
residents that collect and transport the waste to
the collection/transfer point from where the waste
should be collected immediately by REMASAB,
collection is never immediate and this creates not
only unhygienic dump but resistance from
residents close to the collection points, thereby
disrupting the whole operation. In this study, 70%
of the residents do not have an authorized
dumping site for their waste. This confirms a
nationwide survey by the Federal Office of
Statistics (1978) which found that 52% of urban
households in Nigeria do not have access to an
authorized dumping ground and Karshi (1981)
also concluded that the single most critical
problem confronting waste management in Jos
metropolitan area is not equipment or manpower
but indiscriminate dumping of wastes by the road
side, gutters and other unauthorized dumping
grounds by residents of the city. The same
problem applies to most of the land fill sites which
are located now within highly dense residential
areas (Zoo Road Dump site, for example) and now
it is difficult to find dump sites which are located
at a reasonable distance from the collection area.
In this study, it was also observed that
households are mainly interested in receiving
effective and dependable waste collection service
within their immediate vicinity. Only 11% of
respondents are concerned with the broader
objective of environmentally sound waste
disposal, rather, households give priority to water
supply and electricity.
Although households are the main contri-
butors to waste generation, (Table 1) it may well
be useful to know how this may change with
economic development. A positive relationship
between income levels and waste generation at
the household level has been established (Nabegu
2008b; Rotich et al. 2006). At the same time, waste
generation is conditioned to an important degree
by people’s attitudes towards waste especially their
patterns of material use and waste handling, their
interest in waste reduction and minimization, the
degree to which they separate wastes and the
extent to which they refrain from indiscriminate
dumping and littering (Zurbrugg 1999). People’s
attitudes influence not only the characteristics of
waste generation, but also the effective demand
for waste collection services.
Attitudes have been positively influenced
through awareness-building campaigns on the
negative impacts of inadequate waste collection
with regard to public health and environmental
conditions, and the value of effective disposal.
Such campaigns should also inform people of
their responsibilities as waste generators and of
their rights as citizens to waste management
services. Whilst attitudes towards solid waste
may be positively influenced by public infor-
mation and educational measures, improved waste
handling patterns can hardly be maintained in
the absence of practical waste disposal options.
Awareness-building measures should therefore
be coordinated with improvements in waste
collection services, whether public or community-
managed. Similarly, people’s waste generation and
disposal patterns are influenced by those of their
neighbors (Mehta and Satyamarayaran 1996).
Thus, besides general awareness, improved local
waste management depends upon the availability
of practical options for waste collection and a
consensus among neighbors that improvements
are both important and possible.
Programmes to disseminate knowledge and
to improve behavior patterns and attitudes
regarding waste management, are therefore
critical. For such programmes to succeed such
programmes must be based on sound under-
standing of the social and cultural characteristics
of the communities.
118 ALIYU BABA NABEGU
Pressure to improve solid waste services will
arise only if there is awareness regarding the
environmental and health impacts of poor waste
collection service. The effectiveness and sustain-
ability of municipal waste management systems
thus ,will depend on the degree to which the served
population identifies with and willingly take
ownership of the systems and facilities.
CONCLUSION AND RECOMMENDATIONS
The conclusion drawn from this limited study
is that the management of municipal solid waste
would have to involve detailed study of the
characteristics of waste as the variation in waste
type. Municipal solid waste composition has
effect on human health, environment and all the
processes of waste management system from the
storage, collection, transport disposal and choice
of equipments. Furthermore, the variation in the
composition of waste observed within the three
different residential zones of Kano metropolis
reflects local variation in standard of living and
indicate that to achieve success in management,
waste should be managed at the local level instead
of the current practice of having a large centralized
agency so that local variations can be taken into
account. Thus, for any waste management frame-
work for Kano metropolis and possibly also other
Nigerian cities, a careful consideration of all these
factors in relation to local conditions must be the
basis of a sound and sustainable programme. To
date, no concerted efforts have been made to
consider these issues.
Regardless of the type of waste management
selected, no amount of urban planning nor
municipal solid waste management strategies will
translate into reality unless the government takes
the required initiatives and makes the necessary
inputs available. These inputs do not necessarily
have to be financial. For example, waste recycling
can be promoted through consumer campaigns
encouraging citizens to co-operate in waste
separation and promoting to them the purchase
of recycled products. Also, citizens should be
requested to pay a realistic fee for waste services
in return for the guarantee that indeed these
services will be provided. Finally, no municipal
solid waste management can be effective without
proper monitoring of its disposal activities.
Therefore, its effectiveness should be tested on
a regular basis. There is also an urgent need to
reassess all legislations regarding waste mana-
gement with a view to stream lining them so that
there is a comprehensive and clear role for all the
agencies, various tiers of government, as well as
the public including NGOs and community asso-
ciations.
REFERENCES
Beukering PV, Sehker M, Gerlagh R, Kumar V 1999.
Analysing Urban Solid Waste in Developing
Countries: A Perspective on Bangalore. Collaborative
Research in the Economics of Environment and
Development (CREED) and Environmental
Economics Programme (IIED), Working Paper No.
24, March 1999, P.24. ISBN 1357 924X (ISSN).
Available of the website: http://www.iied.org/eep/
pubs/creed.(Retrieved, February 20th 2004)
CPCB 2000. Status of Solid Waste Generation, Collection,
Treatment and Disposal in Class I Cities. Delhi:
Central Pollution Control Board, ADSORBS/31/
1999-2000.
Corry JE, Diane RS, Kinner FA 1982. Isolation and
Identification Methods for Food Poisoning Organi-
sms. London: Academy Press.
Cointreau-Levine S 1997. Occupational and Environ-
mental Health Issues of Solid Waste Management.
In: S Cointreau-Levine (Ed.): International Occupa-
tional and Environmental Medicine. Mes by, St.
Louis, P.198.
Chandrasekar M 2002. Policy and Prospects on Municipal
Solid Wastes. Workshop on Municipal Solid Waste in
India, Delhi: IIT.
Dhussa AK, Varshney AK 2000. Energy Recovery from
Municipal Solid Waste – Potential and Possibility.
Bio Energy News, UNDP, 4(1): 18-21.
Federal Office of Statistics 1978. Urban Household Survey.
Preliminary Report. Lagos.
Gordon HS 1983.The Economic Theory of Common
Property Resource. In: RK Dorfman (Ed.): Econo-
mics of the Environment. London: Methuen, pp.221-
239.
Hoornweg B, Arnold K, Smith H 1999. Landfill gases as
pollutants: A preliminary report from Manilla. MAB,
Tech paper No. 14. Paris: UNESCO.
Johanesen C 1999. The Impact of Landfill Gases in
Global Warming. New York: Academy Press.
Karshi SS 1981. Towards an Effective Refuse Collection
and Disposal in Jos. Symposium on Urban Environ-
mental Management. Dept of Geography and
Planning. Uni Jos.
Kuruparan P, Tubtimthai O, Visvanathan C, Tränkler J
2003. Influence of Tropical Seasonal Variation,
Operation Modes and Waste Composition on
Leachate Characteristics and Landfill Settlement.
Proceedings of the Workshop on Sustainable Landfill
Management, December 3-5, 2003, Centre for
Environmental Studies. Anna University, Chennai,
India.
Klundert A, van de Anschütz J, Scheinberg A 2001. Inte-
grated Sustainable Waste Management - The Concept
-Tools for Decision-makers Experiences from the
Urban Waste Expertise Programme. Available from
the website: www.waste.nl (Retrieved February 18,
2004).
119
AN ANALYSIS OF MUNICIPAL SOLID WASTE IN KANO METROPOLIS, NIGERIA
Ludwig C, Hellweg S, Stucki S (Eds.) 2003. Municipal
Solid Waste Management: Strategies and
Technologies for Sustainable Solutions. Berlin
Heidelberg: Springer-Verlag.
Mukhtar M 2008. Analysis of Plastic Waste Recycling in
Kano Nigeria. PhD Thesis submitted to Dept of
Economics. B.U.K.
Mehta M, Satyanarayana V 1996. Pricing and Cost
Recovery for Urban Services: A City Perspective -
Case of Pune Municipal Corporation. Paper
presented at the Seminar on ‘Pricing and Cost
Recovery of Urban Infrastructure and Services’
organized by National Institute of Urban Affairs,
National Institute of Public Finance and Policy, and
Community Consulting International at New Delhi.
Nabegu AB 2008a. An assessment of refuse management
and sanitation board (REMASAB)’s waste
management in Kano metropolis. Techno-science
Africana Journal, 1: 101-108.
Nabegu AB 2008b. Municipal solid waste characteristics
in three residential zones of Kano metropolis.
Maidugri Journal of Arts and Social Sciences, 6:
199-210.
Nabegu AB 2008c. The organization of plastic waste
recycling in Kano metropolis. Techno-science
Africana Journal, 2: 89-90.
Ramachandra TV, Bachamanda S 2007. Environmental
audit of Municipal Solid Waste Management. Int J
Environmental Technology and Management, 7(3/
4): 369–391.
Rotich H, Zhao Y, Dung J 2006. Municipal solid waste
management challenges in developing countries –
Kenya case study. Waste Management, 26: 92-100.
Saleh GA 2008. Analysis of Scavenging Activities and
Reuse of Solid Wastes in Kano Metropolis, Nigeria.
PhD Thesis submitted to Dept of Geography. B.U
K.
World Bank 2002. Data by country. Website http://
www.worldbank.org/data/countrydata/ countrydata.
html (Retrieved June 11, 2003).
World Bank 2003. Thailand Environmental Monitor
2003. A joint publication of the Pollution Control
Department, Royal Thai Government. The World
Bank, US Asia Environmental Partnership.
United Nations Development Programme (UNDP)
2004. Municipal Solid Waste Management in
Developing Countries: A policy Framework. Geneva.
Technical paper, 12, Geneva: UNDP.
Zurbrugg C 1999. The challenge of solid waste disposal
in developing countries, SANDEC News, EAWAG,
No. 4, 1999.
