Project – Assessment of Household Solid Waste Management Practices: A Case Study of Selected Residential Areas in Ibadan, Oyo State.

CHAPTER ONE

INTRODUCTION

1.1 Background to the Study

Solid waste management is an important component of environmental sanitation, public health protection, and sustainable urban development. Household solid waste consists of unwanted or discarded materials generated through daily domestic activities, including food remnants, paper, plastics, glass, metals, textiles, packaging materials, and other refuse. Effective management involves the proper storage, separation, collection, transportation, recovery, treatment, and final disposal of these materials. When waste is not properly managed, it may accumulate in residential surroundings, obstruct drainage channels, attract disease vectors, and contribute to environmental pollution. The World Bank (2018), in its global assessment of solid waste management, identifies waste generation, collection, treatment, and disposal as major challenges facing urban communities, particularly where population growth and consumption increase faster than waste-management capacity. Similarly, the United Nations Environment Programme (UNEP) and International Solid Waste Association (ISWA, 2024) emphasise the importance of sustainable waste management and the transition towards approaches that reduce waste generation and increase recovery. Household waste management is therefore not simply a domestic responsibility; it is an essential part of the wider system required to maintain healthy and sustainable residential environments.

Households are important in solid waste management because they generate waste daily and make decisions about how it is stored, separated, reused, and disposed of before collection. Household practices may include keeping refuse in covered containers, separating recyclable materials, reusing shopping bags and containers, composting suitable organic waste, and placing refuse at approved collection points. Conversely, some households may dispose of refuse in open spaces, vacant plots, drainage channels, or unauthorised dumpsites when appropriate collection services are unavailable or inconvenient. The United Nations Environment Programme (UNEP, 2015) explains that sustainable waste management requires attention to the entire waste chain, including prevention, reduction, reuse, recycling, treatment, and disposal. In a study of household waste reduction in Ibadan, Ojolowo and Akinyele (2023) examined practices such as purchasing products with less packaging, using reusable items, reducing food waste, and maintaining or repairing household possessions. Their research demonstrates that household decisions before disposal can influence the volume and type of waste ultimately requiring municipal collection. Assessing household practices is therefore important for identifying both environmentally harmful behaviours and opportunities for improving waste reduction and recovery at the source.

Urbanisation and population growth increase the pressure on waste-management systems because more households generate larger quantities and wider varieties of waste. As residential areas expand, local authorities and service providers must collect waste from more households and transport it to suitable treatment or disposal facilities. Where collection capacity does not keep pace with demand, waste may accumulate around homes, roadsides, markets, and drainage channels. The World Bank (2018) reports that global municipal solid waste generation is substantial and projected to increase considerably as populations, urbanisation, and consumption grow. In Nigeria, urban waste-management challenges are also shaped by differences in household income, access to collection services, infrastructure, and the availability of approved disposal facilities. Akande et al. (2022), in their study of solid waste disposal in Iwo and Ibadan, found that waste disposal choices were influenced by factors including income, household size, cultural practices, health considerations, and the distance to disposal facilities. These findings indicate that household waste management cannot be explained by residents’ attitudes alone; the wider urban environment and the services available to residents also influence their options.

The methods used to store and dispose of household waste have important implications for environmental quality and public health. Improperly stored waste may attract flies, rodents, and other disease vectors, while accumulated refuse can create unpleasant odours and reduce the cleanliness of residential areas. Waste deposited in drainage channels may obstruct water flow and contribute to localised flooding, while open burning can release harmful pollutants into the surrounding air. The World Health Organization (WHO, 2025) identifies multiple pathways through which poorly managed solid waste may affect human health, including exposure to hazardous materials, contaminated environments, and pollutants released during inappropriate waste handling and disposal. Earlier research in Ibadan by Iyanda and Olaniyi (2014) examined municipal waste-disposal methods and identified open burning as a commonly reported practice in their study. In addition, research on sanitation practices in Ibadan documented disposal behaviours such as dumping waste in drainage channels, on vacant plots, and in open spaces (Evaluation of Sanitation Practices in Ibadan South East LGAs of Oyo State, Nigeria, 2013). These findings underline the importance of examining actual household practices and their potential implications for the cleanliness and safety of residential environments.

Waste separation, reuse, recycling, and recovery are important components of sustainable household waste management because they can reduce the quantity of waste requiring final disposal. Separation involves sorting waste into categories, such as organic matter, plastics, glass, metals, and paper, so that suitable materials can be reused, recycled, composted, or processed. However, the effectiveness of these practices depends on household knowledge, the availability of separate storage containers, the presence of recycling markets, and the accessibility of collection or recovery services. Oluseyi, Kareem, and Idowu (2017), in their study of household solid waste recovery and utilisation in Ibadan North Local Government Area, found that recoverable materials included paper, plastics and rubber, nylon, and metals, but the extent of their utilisation was relatively low compared with the amount available for recovery. Their findings suggest that potentially reusable resources may be lost when waste is mixed together and sent directly for disposal. UNEP and ISWA (2024) also emphasise the need for approaches that reduce waste generation, improve resource recovery, and support circular-economy practices. Assessing household separation and recycling practices can therefore help identify opportunities to reduce environmental pressure and make better use of discarded materials.

Household solid waste management is influenced by a combination of socioeconomic, behavioural, and service-related factors. Education may affect residents’ understanding of sanitation and recycling, while household income may influence their ability to pay for waste collection or purchase suitable storage containers. Household size and consumption patterns may affect the quantity of waste generated, while residents’ environmental awareness and perceptions of responsibility may influence how waste is handled. At the same time, the regularity and affordability of collection services, the distance to approved disposal facilities, and the availability of public waste containers may determine whether households can practise proper disposal consistently. Akande et al. (2022) found that income, household size, cultural factors, and distance to disposal locations were relevant to waste-disposal choices in Ibadan and Iwo. Similarly, Obisesan (2023), in a study of waste-management practices in Ibadan South East Local Government Area, reported that household socioeconomic characteristics were associated with waste collection and disposal practices. These findings suggest that effective interventions need to address both household behaviour and the practical conditions that enable residents to manage waste properly.

Ibadan, the capital of Oyo State, is a major urban centre with diverse residential communities and varying socioeconomic conditions. Differences in housing density, road access, household income, local infrastructure, and the availability of waste collection services may produce different waste-management experiences across residential areas. Previous research has examined household waste reduction in Ibadan, solid waste recovery in Ibadan North, and waste-management practices in Ibadan South East, demonstrating the relevance of the issue within the city (Ojolowo & Akinyele, 2023; Oluseyi et al., 2017; Obisesan, 2023). Nevertheless, findings from one local government area or set of neighbourhoods may not represent the experiences of households in other residential locations. It is therefore necessary to assess the practices of households in the specific residential areas selected for this study. Such an assessment can examine how households store, separate, collect, reuse, and dispose of their waste, as well as the challenges they encounter and the factors associated with their practices. The study is intended to provide locally relevant evidence that may support environmental education, improved waste collection, recycling initiatives, and better coordination between households and responsible waste-management authorities in Ibadan, Oyo State.

1.2 Statement of the Problem

Household solid waste management remains an important environmental concern in many Nigerian urban communities because the quantity of waste generated by households must be matched by adequate storage, collection, transportation, recovery, and disposal arrangements. Where these activities are poorly coordinated, refuse may accumulate in residential areas, creating unpleasant surroundings and increasing the potential for environmental pollution. The World Bank (2018) identifies the growing volume of municipal solid waste and the need for improved collection and environmentally sound disposal as major challenges for urban areas. Evidence from Ibadan also demonstrates that household waste disposal and recovery practices require attention. Iyanda and Olaniyi (2014) examined municipal waste-disposal methods in Ibadan and identified open burning among the commonly reported methods, while Oluseyi et al. (2017) found that the utilisation of recoverable household waste materials in Ibadan North was relatively low. These findings suggest that the existence of waste-generation and disposal activities does not necessarily mean that waste is being managed sustainably. There is therefore a need to assess the actual household solid waste management practices in selected residential areas of Ibadan.

A second problem concerns the persistence of disposal practices that may negatively affect the residential environment. When households lack suitable storage facilities or reliable collection services, some residents may resort to open dumping, burning, or disposing of refuse in drainage channels and vacant plots. Such practices can contribute to environmental deterioration and create potential health hazards for nearby residents. Research on sanitation practices in Ibadan documented the disposal of household waste in open spaces, vacant plots, and drainage channels (Evaluation of Sanitation Practices in Ibadan South East LGAs of Oyo State, Nigeria, 2013). Akande et al. (2022) also reported that waste disposal decisions in Ibadan and Iwo were influenced by factors including household income, cultural practices, health concerns, and distance to disposal facilities. These findings indicate that improper waste disposal may reflect not only individual choices but also the challenges households face in accessing appropriate waste-management services. Assessing current household practices in selected residential areas is therefore necessary to understand the extent to which such challenges remain relevant to the study locations.

Another problem is that effective household waste management depends on several interconnected factors, including residents’ environmental awareness, educational background, household size, income, availability of waste containers, access to collection services, and opportunities for recycling. Even when residents understand the importance of proper disposal, they may find it difficult to practise waste separation or use approved collection points if these facilities are unavailable, distant, or costly. Ojolowo and Akinyele (2023) examined household waste reduction practices in Ibadan and identified activities such as using reusable items, purchasing products with less packaging, and reducing food waste. Oluseyi et al. (2017) similarly demonstrated the potential for recovering materials such as plastics, paper, and metals from household waste, while identifying relatively low utilisation of recoverable materials. These studies highlight opportunities for improving waste management at the household level, but they also show the importance of identifying the specific behavioural and service-related factors affecting residents in different locations. Without such information, interventions may not adequately address the practical obstacles preventing households from adopting more sustainable waste-management practices.

Finally, although previous research has examined waste disposal, waste reduction, and waste recovery in parts of Ibadan, the findings from individual local government areas and neighbourhoods may not adequately describe practices across all residential settings. Differences in infrastructure, income levels, household composition, and waste collection arrangements may lead to different experiences among residents. For example, Obisesan (2023) reported that household socioeconomic characteristics were associated with waste collection and disposal practices in Ibadan South East Local Government Area. This supports the need to examine the circumstances of the particular residential areas selected for the present study rather than assuming that all households manage waste in the same way. The absence of location-specific information on household storage, separation, collection, recycling, disposal practices, and related challenges may limit the ability of stakeholders to design appropriately targeted interventions. The present study therefore seeks to assess household solid waste management practices in selected residential areas of Ibadan, Oyo State, and identify factors associated with those practices. Its findings may help inform environmental education, service improvements, and more sustainable household waste-management initiatives.

1.3 Aim and Objectives of the Study

The main aim of this study is to assess household solid waste management practices in selected residential areas of Ibadan, Oyo State.

The specific objectives are to:

1. Identify the major types of solid waste generated by households in the selected residential areas.

2. Assess household practices relating to waste storage, separation, collection, reuse, recycling, and final disposal.

3. Examine the socioeconomic, behavioural, and service-related factors associated with household solid waste management practices.

4. Identify the major challenges households encounter in managing solid waste and suggest measures for improving waste management in the selected residential areas.

1.4 Research Questions

The study will be guided by the following research questions:

1. What major types of solid waste are generated by households in the selected residential areas?

2. What practices do households adopt for storing, separating, collecting, reusing, recycling, and disposing of solid waste?

3. What socioeconomic, behavioural, and service-related factors are associated with household solid waste management practices?

4. What major challenges do households encounter in managing solid waste, and what measures could improve these practices?

1.5 Research Hypothesis

The following null hypothesis will be tested at the 0.05 level of significance:

H₀: There is no statistically significant relationship between selected socioeconomic and service-related factors and household solid waste management practices in the selected residential areas of Ibadan, Oyo State.

1.6 Significance of the Study

The findings of this study are expected to be useful to households, environmental health officers, local government authorities, waste-management agencies, community leaders, and future researchers.

Households: The study may increase awareness of appropriate waste storage, separation, reuse, recycling, and disposal practices. It may also help residents understand how their everyday decisions influence environmental cleanliness and the amount of waste requiring collection.

Local government authorities: The findings may provide information about household waste-management needs in the selected residential areas. This could support planning for waste collection points, improved collection schedules, accessible disposal facilities, and community sanitation programmes.

Waste-management agencies: The study may help identify problems associated with collection services, waste storage, transportation, and disposal. The findings could assist service providers in identifying areas where their services need improvement and where cooperation with households may be strengthened.

Environmental health officers: The findings may provide evidence to support environmental sanitation education, community sensitisation, and the promotion of safer waste-handling practices. They may also help officers identify common household practices that require attention.

Community leaders and residents’ associations: The study may support community-based initiatives such as neighbourhood clean-up campaigns, waste separation programmes, recycling activities, and collective efforts to prevent indiscriminate dumping.

Policymakers: The findings may contribute to discussions about urban environmental management and the need to combine public education with accessible waste-management services. The study may help demonstrate the importance of considering socioeconomic conditions when developing waste-management interventions.

Researchers and students: The study may serve as a reference for further research on household waste generation, environmental sanitation, recycling behaviour, and sustainable waste-management practices in Ibadan and other Nigerian urban centres.

1.7 Scope of the Study

The study focuses on household solid waste management practices in selected residential areas of Ibadan, Oyo State, Nigeria.

The geographical scope covers the residential areas selected for the study. The specific neighbourhoods will be identified in the methodology based on the research design, accessibility, and the need to represent different residential and socioeconomic conditions.

The content scope covers the types of solid waste generated by households, household storage and separation practices, collection arrangements, reuse and recycling activities, and final disposal methods. It also examines socioeconomic, behavioural, and service-related factors that may be associated with these practices.

The study will further investigate the challenges households encounter, including irregular collection, cost of waste services, lack of suitable containers, limited recycling opportunities, and distance to approved disposal facilities where these are relevant to the selected locations.

The study is concerned primarily with household solid waste. It does not focus on industrial hazardous waste, healthcare waste, or wastewater, except where these issues arise incidentally in residents’ descriptions of their environment.

1.8 Limitations of the Study

The study may encounter several limitations.

First, the research will cover selected residential areas rather than every neighbourhood in Ibadan. The findings may therefore not represent all households in the city.

Second, if questionnaires are used, respondents may provide answers they consider socially acceptable instead of describing their actual waste-management practices. This may affect the accuracy of reported behaviours.

Third, household waste practices may vary according to the time of year, household size, income, and the availability of collection services. Data collected during one period may not capture all these variations.

Fourth, some households may be reluctant to provide information about their waste-disposal habits or payments for collection services. Clear explanations of the study’s purpose and confidentiality arrangements may help reduce this challenge.

Finally, time and financial constraints may limit the number of households that can be included. A suitable sampling method, a clearly designed questionnaire, and consistent data-collection procedures will help improve the quality of the findings.

1.9 Operational Definition of Terms

Household: A person or group of people living together in a residential unit and sharing domestic arrangements, whether or not they are related.

Solid waste: Unwanted or discarded solid and semi-solid materials generated through household activities, including food remnants, paper, plastics, glass, metals, textiles, and packaging materials.

Household solid waste management: The activities undertaken by households to store, separate, reuse, recycle, present for collection, and dispose of their solid waste.

Waste generation: The production of unwanted materials as a result of household activities such as cooking, cleaning, shopping, and the use of domestic products.

Waste storage: The temporary keeping of household refuse in containers, sacks, bins, or designated spaces before collection or disposal.

Waste separation: The sorting of waste into different categories, such as organic waste, plastics, paper, glass, and metals, to facilitate reuse, recycling, treatment, or appropriate disposal.

Waste collection: The process of gathering household refuse from homes or designated collection points for transportation to another location.

Waste disposal: The final placement or discarding of waste through methods such as approved landfill disposal, authorised collection systems, or other designated arrangements.

Recycling: The processing of discarded materials into materials or products that can be used again.

Waste reduction: Actions taken to reduce the amount of waste produced, such as avoiding unnecessary packaging, reusing containers, and reducing food waste.

Residential areas: Neighbourhoods in Ibadan where people live and carry out their domestic activities and which are selected as locations for the study.

Sustainable waste management: Waste-management practices intended to reduce environmental harm and unnecessary resource loss through waste prevention, reuse, recycling, appropriate treatment, and safe disposal.

Project – Assessment of Household Solid Waste Management Practices: A Case Study of Selected Residential Areas in Ibadan, Oyo State.