Comparative Assessment of the Environmental Implication of Management Options for Municipal Solid Waste in Nigeria

Kofoworola, Oyeshola Femi

doi:10.4172/2252-5211.1000259

Cited by 4 publications

(5 citation statements)

References 17 publications

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“…A study by Obadina [57] found that the reuse of some waste material is possible, however Odewumi [58] noted that they have been under-utilised. Incineration, on the other hand, is not commonly practiced in Lagos and Nigeria as a whole [59]. It is against this backdrop that this study assessed construction material waste disposal methods that are based on seven methods, including landfill, burning, recycling, reuse as backfill, on site dig and bury, open dumping, and incineration identified from the literature.…”

Section: Background Of the Studymentioning

confidence: 99%

“…These construction projects were purposively selected based on their level of completion, availability, and involvement of construction professionals. The firms were categorised into small, medium, and large based on their annual turnover, as adopted by previous studies [59][60][61][66][67][68]. Furthermore, company characteristics, such as ownership status, age, size, and area of specialisation were adopted for this study.…”

Section: Research Participantsmentioning

confidence: 99%

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An Assessment of Material Waste Disposal Methods in the Nigerian Construction Industry

2019

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The construction industry is faced with many challenges, among which is waste management. Aside from the fact that wastage contributes to time and cost overrun, it also has environmental implications in the form of pollution. However, the industry has the capacity to effectively manage waste, from generation to disposal. All stages of the management process are important, but scholars and governments have provided the final step, being disposal, unabated attention in order to ensure effective management. Potential waste disposal methods, including incineration, burning, landfilling, recycling, reuse, open dumping, pyrolysis, and shredding have emerged from the literature around the globe. Despite various waste minimisation and sustainable disposal options that are available, construction material waste is still increasing in Nigeria, while disposal remains a major issue for firms and government. Therefore, this study assesses disposal methods among construction firms to determine whether there is a relationship between their practices towards waste disposal. The research followed a concurrent triangulation design in a cross sectional survey, while data were collected via a convergent parallel mixed methods. The quantitative phase employed a structured questionnaire to collect data from 243 building construction firms, while the qualitative phase involved semi-structured interviews with 65 professionals from 10 on-going construction projects in Lagos, Nigeria. The research revealed that landfilling is the most common method of waste disposal, which is closely followed by reuse as backfill and recycling. In addition, the study revealed no association between company’s ownership statuses, age, project specialisation, and disposal methods, except company’s size. In conclusion, the study establishes the need for regulatory policies, such as site waste management plan (SWMP), pay as you throw (PAYT), and landfill ban, which would minimise material waste and divert them from landfills. Recycling and reuse are recommended as sustainable approaches for waste disposal.

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Section: Background Of the Studymentioning

confidence: 99%

Section: Research Participantsmentioning

confidence: 99%

An Assessment of Material Waste Disposal Methods in the Nigerian Construction Industry

2019

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“…Owoeye & Rotowa [13] recommended the use of an engineering landfill device for waste disposal to discourage open dumping. Kofoworola [14] reported a significant reduction of greenhouse gas emissions resulting from the current MSW management of open dumping and burning with the implementation of disposal strategies such as sanitary landfill with gas capture.…”

Section: Introductionmentioning

confidence: 99%

“…Increasing population and the attendant human activities have geometrically led to increasing waste tonnage since the creation of Ekiti State in October 1996 and the establishment of the state capital at Ado-Ekiti. The use of controlled sanitary landfills is desirable to mitigate the adverse effects of open dumping and burning and ultimately safeguard public health and the environment [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Delineation of Landfill Sites for Municipal Solid Waste Management using GIS

Oyedele

Omosekeji²,

Ayeni

et al. 2022

J. Hum. Earth Future

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The use of landfills has been applauded in municipal solid waste management as a critical solution to open dumping and burning. Selection of suitable landfill sites presents a challenge as it involves integration of numerous criteria in waste management and sustainability template without prejudice to the environment. The aim of this paper is to delineate appropriate sites for landfills in the basement complex of Ado-Ekiti, South-western Nigeria. The need for landfill sites that meet scientific and environmental requirements is compelling. Landsat-8 OLI & TIRS images of 2016 and ASTER imagery (30m resolution) were acquired to generate land use/land cover maps and site selection criteria. The composite image was subjected to supervised classification using the maximum likelihood algorithm in ArcGIS 10.2.2. The classification permitted the extraction of the land use of urban areas (settlements), agricultural areas, and bare land. Geoelectrical characterization was deployed to produce in situdata. Integration of data using a weighted overlay yielded a landfill suitability index map that classified the area into four categories of unsuitable, partly suitable, moderately suitable, and very suitable locations of landfill sites. Sanitary landfills are desirable to mitigate the adverse effects of widespread open dumping. Doi: 10.28991/HEF-2022-03-03-05 Full Text: PDF

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“…This balance and working of the environment is often threatened by anthropogenic activities resulting to various undesirable consequences [2,3]. A notable consequence of the human activities is waste generation and consequent poor waste management [4][5][6]. Severally, these wastes generated defile the natural degradation processes and often upset the natural ecosystem balance.…”

Section: Introductionmentioning

confidence: 99%

Polyethylene Biodegradation Potentials of Pseudomonas aeruginosa and Micrococcus sp. Isolated from Waste Dumps and Farmlands in Nsukka, Enugu State, Nigeria

Chigor

Nwankwo

Ogbodo

et al. 2020

MRJI

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Background: Low Density Polyethylene (LDPE) are plastic materials extensively used in packaging, constituting recalcitrant environmental pollutants that defy natural degradation processes. Aim: This study isolated bacteria from a Nigerian environment and assessed their potential for LDPE biodegradation. Methods: Using standard procedures, Bacteria were isolated from polythene samples collected from farmlands and waste dump sites in Nsukka metropolis. Mineral salt medium (MSM) was prepared, with LPDE as sole carbon source, and used for isolation. Optical density (OD600 nm) was used to study bacterial growth on LDPE as sole carbon source as proof of biodegradation. Both organisms demonstrated steady growth on LDPE over time. Results: Pseudomonas aeruginosa and Micrococcus sp. were identified based on morphological and biochemical characteristics. Ability to grow on LDPE as a sole carbon source was studied as evidence of polyethylene biodegradation. Organisms were inoculated into MSM and incubated at 37°C and 50°C for 15 days. Maximum growth was recorded after 15 days of incubation for both organisms. P. aeruginosa and Micrococcus sp. showed steady growth at 37°C as well as 50 ⁰C. Micrococcus sp. recorded highest growth; 0.324 nm and 0.312 nm at 37°C and 50°C respectively, after 15 days. Similarly, P. aeruginosa recorded highest growth of 0.40 nm and 0.258 nm for 37°C and 50°C respectively. LDPE degradation increased with increase in time. Conclusion: This study demonstrates the enormous polyethylene-degrading potentials of P. aeruginosa and Micrococcus sp. isolated from Nsukka, Nigeria.

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Comparative Assessment of the Environmental Implication of Management Options for Municipal Solid Waste in Nigeria

Abstract: In te rnationa l J o u rn al of W a s te R esource s

Cited by 4 publications

References 17 publications

An Assessment of Material Waste Disposal Methods in the Nigerian Construction Industry

An Assessment of Material Waste Disposal Methods in the Nigerian Construction Industry

Delineation of Landfill Sites for Municipal Solid Waste Management using GIS

Polyethylene Biodegradation Potentials of Pseudomonas aeruginosa and Micrococcus sp. Isolated from Waste Dumps and Farmlands in Nsukka, Enugu State, Nigeria

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