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thesis on waste management in nigeria pdf

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Temporal assessment of municipal solid waste management in Nigeria: prospects for circular economy adoption

This work reviewed the past and current status of municipal solid waste (MSW) management in Nigeria towards offering a direction for the future. The past status shows that poor policy regimes, inadequate financing mechanisms, absence of waste data, and abysmal institutional arrangement negatively impacted the MSW management outcomes in the country. At present, few improvements recorded like an increase in the number of landfills, and public-private partnerships have been largely undermined by the continuous upsurge in the urban population and lack of corresponding growth in critical capacities in terms of economic resources, technological advancement, and state-of-the-art urban infrastructures. The current waste generated in cities in Nigeria is calculated as 66,828 tonnes per day (TPD) at the total urban population of 106 million, while the projected value for 2040 will be 125,473 TPD at the urban population of 199 million. The current work further discusses prospects and implications for circular economy adoption in solid waste valorization in Nigeria.

Research funding: None declared.

Author contributions : All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

Competing interests : Authors state no conflict of interest.

Informed consent : Not applicable.

Ethical approval : Not applicable.

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Assessment of the waste generation and management practices in Nigerian food industry : towards a policy for sustainable approaches *

Profile image of Kehinde  Taiwo

The number of food processing firms in Nigeria has increased over the years and also a corresponding increase in the types of products and wastes generated. This study assessed the various practices and technologies of managing wastes generated by some selected food processing firms in South-western Nigeria. Data were collected from forty food processing firms randomly selected among fruit juice and milk; meat and poultry; and fast foods selected from Lagos and Oyo States of Nigeria using two sets of structured and unstructured questionnaire. Food / raw material wastes ranked highest (49.2% or 3,148.8kg) among varied types of solid waste generated while 5000 to 10,000 litres volume of wastewater were generated per firm per production activity. Preliminary peeling and cutting operations ranked highest (3.84 ± 0.291) among the different sources of wastes generation. Open dumping / land filling (4.27 ± 0.231) and contracting of waste for disposal (3.70 ± 0.324) are the major waste mana...

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The study was conducted to assess the practices and technologies of disposing packaging wastes generated within and outside food processing firms. Data were collected using a structured questionnaire that was administered to 40 randomly selected food processing firms in Oyo and Lagos State of Nigeria. Data were also collected through key formant interview and participant observation. Data obtained were analysed using the Statistical Package for the Social Sciences (SPSS) version 16. Results showed that packaging materials of various types, design and volume were used by the firms studied, most of which get accumulated in the municipality due to eat and throw habit of the users. More than 62% of the firms used polyethylene/plastic packaging materials which have high implication for environmental pollution. A minimal percentage of between 1-5% of the packaging materials used became waste at the end of the production processes. In selecting packaging materials, product attractiveness ranked highest (4.05 ± 0.29) with little consideration for package disposal, biological degradability and environmental consideration. A large number of the food firms (94.6%) manage wastes generated within their premises mostly through burning / bury and are not responsible for waste generated by their products in the municipality.

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Solid waste management is a contemporary issue and as such has attracted a lot of attention worldwide. In Nigeria today, the government and other relevant authorities seemed to be helpless in finding the best alternative measure to adopt in ameliorating the negative impact of wastes on the environment. It is on this note that this paper examined solid waste management techniques in Ado-Ekiti, South West, Nigeria. Data for the study were collected from both primary and secondary sources. The methodology for primary data collection were preliminary study, observation, and administration of questionnaires. 400 copies of questionnaire were administered on randomly selected respondents from five different zones in the study area. Secondary data were collected mainly from Ekiti State Waste Management Authority, National Bureau of Statistics as well as from GIS Spatial Nigeria Limited. Data were analysed using tables, frequencies and percentages, as well as Chi-square analysis. The hypothesis generated were tested at (p< 0.05) level of significance. It was discovered that there was a significant difference in the method of waste disposal adopted in the study area (χ2=3508.074, df=25, p<0.05). The study recommends a reduction in the cost of waste collection by the Waste Management Companies, this will encourage the people to make of their services thus giving the waste management companies a full control of waste collection and management resulting in sustainable waste management in the study area.

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Nigeria is the highest producer of cassava in the World with concomitant generation of millions of tons of solid and liquid wastes. These wastes are indiscriminately disposed into the environment causing degradation with attendant serious health hazards to both flora and fauna. There is need, therefore, to properly manage these wastes for a sustainable environment. This research investigated the critical role of efficient waste management practices in mitigating environmental pollution stemming from cassava processing factories in Nigeria. With the burgeoning cassava industry contributing significantly to the nation's economy, the study explores the environmental impact of waste generated during processing and proposes sustainable waste management strategies. Employing a multidisciplinary approach, the research integrates environmental science, engineering, and policy analysis to assess the current state of waste management in cassava processing and suggests innovative solutions. By identifying and addressing key challenges, the study highlighted actionable insights for policymakers, industry stakeholders, and environmental advocates, emphasizing the pivotal role of effective waste management in fostering a sustainable and eco-friendly cassava processing sector in Nigeria.

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COMMENTS

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    1.2 Problem Statement. The problem of solid waste management is alarmingly a big issue in Nigeria. Commercial cities in Nigeria like Onitsha, Lagos, Kano etc. are the locations chiefly affected due to the day by day rapid increase of developmental and commercial activities going on in these areas.

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    Table 10 Diseases in Nigeria linked with poor waste management practice .....72 Table 11 Identified sustainable solid waste management challenges in Nigeria .....78 Table 12 Summary of methods used to collect data, and the objectives achieved ..110 Table 13 Summary of focus group discussions conducted for phase 2 of this research

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    Master's Thesis, 30 ECTS credits ISRN: LIU-TEMAV/MPSSD-A-13/009--SE Linköpings Universitet ... Sustainability of Municipal Solid Waste Management in Nigeria: A Case Study of Lagos Yetunde Agbesola Master's programme Science for Sustainable Development Master's Thesis, 30 ECTS credits Supervisor: Jan-Olof Drangert 2013 . ii

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    Chapter 4: Review of Urban Waste Management Legal and Institutional Frameworks in Nigeria: Anambra and Lagos States 60 4.1 State Laws and Institutions Related to Urban Waste Management in Anambra State Nigeria 60 4.1.0 Anambra State Environmental Protection Agency of 1998 (ANSEPA) 61 4.1.1 The Anambra State Waste Management Authority Law

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    of effective management. The outcome of the waste management workshop organized by Connect project in Lagos Nigeria in March 2014 will be analyzed serving as a possible adaption from the Finnish system. The Finnish system of waste management will be used as a model in the establishment of a new path for Lagos state waste management agency (LAWMA).

  9. Solid Waste Management in Nigeria: The Case Study of Onitsha Commercial

    One is solid waste. Hence, the goal of this thesis work is to examine and analyse the existing solid waste management resources and strategies in Onitsha, Anambra state, Nigeria; it also studies the classes of waste generated, how are generated waste disposed and treated in the city; examination of the factors militating against effective and ...

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    This management developed by the Federal Ministry of Environ- study reveals that solid waste management in Nigeria is suf- ment in 2004, the Minister for Environment, Col Bala Bande fers lots of setbacks which can be summarized as poor collec- (Rtd), acknowledged the challenges and dangers associated tion and disposal methods, insufficient ...

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    Solid waste management is a major environmental challenge in most Nigerian cities. Waste generation rate in Nigeria is estimated at 0.65-0.95 kg/capita/day which gives an average of 42 million ...

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    The problem of solid waste management has become a debilitating factor towards sustainable development in Nigeria. The study therefore was carried out to evaluate the chains of problems militating against solid waste management in Nigeria with particular stress on Enugu State. The study adopted survey research method.

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