Integrated environmental biotechnology-oriented framework for solid waste management and control in Nigeria

Onwurah, Ikechukwu N. E.; Ogugua, Victor N.; Otitoju, Olawale

doi:10.1504/ijewm.2006.011134

Cited by 13 publications

(11 citation statements)

References 6 publications

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“…The main sources of these toxic metals were the heavy traffic emission as was observed in both cities due to urbanization and industrialization. These environmental conditions were agree with the findings and report of [25] who pointed out detrimental conditions of Enugu and Rivers State implicated by environmental degradation such as improper disposal of refuse near residential areas and poor refuse collection and handling. The results obtained revealed that the mean level of cadmium (Cd) was very significant (p < 0.05) for all the locations studied.…”

Section: Discussionsupporting

confidence: 92%

“…3, 9 and 12). The Cd values were higher than what was obtained in the findings of [25] which had values of 0.02 mg/kg, 0.01 mg/kg and 0.01 mg/kg for Amaranthus hybridus, Cochorus olitorus (ewedu in Yoruba) and Celosia argentea (soko) plants respectively. Cadmium can be emitted from tyre, detergent, and battery products, as well as, domestic wastes and poor sewage disposal which were the environmental condition in most parts of Enugu State.…”

Section: Discussioncontrasting

confidence: 73%

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Heavy Metal Contamination of Selected Vegetables from Crude Oil and Non Crude Oil-Producing States in Nigeria: A Comparative Study

Okonkwo

Onyechi

Anukwuorji

et al. 2018

SFP

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The aim of this study was to investigate and compare the heavy metal (HM) concentrations of selected vegetables harvested from crude oil-producing Rivers State and non-oil-producing Enugu State in Nigeria. Four vegetables;Telfaria occidentialis, Talinum triangulare, Ocimium gratissimum, and Murraya koenigii,were obtained from local farms in local government areas (LGAs) selected, each from the 3 senatorial zones in each state.The chemical analysis in mg/100g of the heavy metals (HMs) was conducted using standard methods. There mean values varied in the order: lead (Pb) > cadmium (Cd) > mercury (Hg) in mg/100g. Vegetable samples harvested from Rivers State had the highest toxicity level for both Pb (0.19 to 0.34) and Hg (0.01 to 0.03), while samples harvested from Enugu State had the highest toxicity level for Cd (0.07 to 0.25). The mean Pb contents forOcimium gratissimum(0.27) andTalinum triangulare(0.26), harvested from Rivers States were significantly (p < 0.05) higher than their counterparts harvested from Enugu State (0.19 and 0.21, respectively). Mercury had the least mean value than Pb and Cd in all the locations. All the vegetables from all the localities in this study had toxic levels of HM much above the FAO/WHO acceptable limits; 0.03 mg/100g for Pb, and 0.02 mg/100g for Cd in foods and 0.0001 mg/100g for Hg in mineral water. It can therefore be said that the public health importance for increased consumption of fruits and vegetables may equally mean increased HM consumption and bioaccumulation for the population in Rivers and Enugu States.

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Section: Discussionsupporting

confidence: 92%

Section: Discussioncontrasting

confidence: 73%

Heavy Metal Contamination of Selected Vegetables from Crude Oil and Non Crude Oil-Producing States in Nigeria: A Comparative Study

Okonkwo

Onyechi

Anukwuorji

et al. 2018

SFP

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“…The study which was carried out in six South-Western states in Nigeria, recommended composting of biodegradable waste in the region as a waste management strategy which will benefit the economy as well as agricultural production. Onwurah et al (2006) also, conducted another study at the South Eastern region of Nigeria, where the benefits of Minimisation Strategy also included the bioconversion of biodegradable waste to compost and biogas which will involve communities, industries and Small and Medium-scale Enterprise (SMEs) that have the capacity of integrated environmental technologies. Also, revealed some of the other forms of recycling activities at Ondo state.…”

Section: Waste Minimisation Strategy (Wms)mentioning

confidence: 99%

A Review of Solid Waste Management Strategies in Nigeria

2020

JEES

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The global population and increased urbanization have resulted in the increased production of municipal solid waste, thus, becoming a critical issue as a result of its poor management and inappropriate disposal. This is particularly the case of developing countries. This study assessed Solid Waste Management (SWM) strategies commonly adopted by different state waste management Authorities in Nigeria with a view to develop a sustainable roadmap for the management of solid waste in Nigeria. It assessed the Traditional Solid Waste Management Strategy (TSWMS), Waste Minimisation Strategy (WMS) as well as the Technological Strategy (TcS) employed, laying focus on their challenges and benefits. The study depended on a desktop study approach; hence, data were obtained from secondary data as the main source of information with emphasis on published journals, conference papers, newspaper posts and statutory reports from government agencies relevant to the current study. Results from the review showed that waste management across various parts of Nigeria is poor, interwoven with several challenges at all phase of the management process with little benefits recorded on alternative SWM strategy. The reason for the low success rate of some of this management strategies were noted as; increase in population, area covered, increase in urbanization and industrialization, tenure of government, over dependence on government authorities for waste management, finance and other factors of the environment. Although most waste authorities rely heavily on the TSWMS, WMS and the TcS showed a better and promising alternative strategy when inculcated into the already existing strategy. Based on this finding, a roadmap for the actualization of a sustainable integrated solid waste management strategy was recommended for adaptation and adoption by the Nigerian SWM Authorities and Agencies.

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“…Lo anterior implica responder responsablemente con el incremento en la demanda de energía, con la premisa clara de resguardar los recursos naturales, por lo cual, el desarrollo de fuentes alternativas de energía es fundamental (Lakhan, 2017). En particular, el uso de la biomasa, obtenida a través de residuos en el sector agroindustrial en países mayoritariamente agrícolas como el nuestro, ofrece una oportunidad única para generar energía verde (Onwurah et al, 2006). Sin embargo, a pesar del evidente potencial, actualmente existen un sinnúmero de desafíos asociados con la recolección, separación, pretratamiento, tratamiento y disposición final de los resi-duos.…”

Section: Bioingeniería Para El Control Y Automatización De Procesos Para El Aprovechamiento Energético De Residuosunclassified

Tendencias y alternativas para la gestión de residuos sólidos orgánicos en unidades militares del Ejército Nacional de Colombia

Prieto¹,

Monsalve²,

Duque³

2020

Miradas De Innovación, Sostenibilidad Y Desarrollo en Torno a La Gestión Ambiental en El Ejército Nacional De Colombia

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La gestión y tratamiento de residuos orgánicos consiste en la implementación de mecanismos factibles para su aprovechamiento energético y agrícola. Actualmente, se han identificado diferentes tendencias para implementación de métodos alternativos caracterizados por ser tecnologías seguras, eficaces y respetuosas con el medioambiente, entre las que se destacan los biodigestores, de los que se obtiene biogás y bioles con potencial fertilizante líquido, la generación de enmiendas orgánicas del suelo, como lo es el compostaje y la generación de biofertilizantes que pueden suplir el uso de fertilizantes de síntesis. Los residuos provenientes de actividades agrícolas suelen incinerarse o disponerse en vertederos, lo que conlleva la liberación de gases de efecto invernadero, aportando al deterioro del ambiente e incrementando el calentamiento global; además, estos residuos pueden contener organismos patógenos como coliformes, endoparásitos, ectoparásitos y vectores de microorganismos que pueden representar un peligro

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Integrated environmental biotechnology-oriented framework for solid waste management and control in Nigeria

Cited by 13 publications

References 6 publications

Heavy Metal Contamination of Selected Vegetables from Crude Oil and Non Crude Oil-Producing States in Nigeria: A Comparative Study

Heavy Metal Contamination of Selected Vegetables from Crude Oil and Non Crude Oil-Producing States in Nigeria: A Comparative Study

A Review of Solid Waste Management Strategies in Nigeria

Tendencias y alternativas para la gestión de residuos sólidos orgánicos en unidades militares del Ejército Nacional de Colombia

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