Author
M. J. Ayotamuno
Bio: M. J. Ayotamuno is an academic researcher from Rivers State University of Science and Technology. The author has contributed to research in topics: Municipal solid waste & Leachate. The author has an hindex of 9, co-authored 14 publications receiving 788 citations.
Papers
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TL;DR: In this article, the authors provide a synthesis of the key issues and analyses concerning the design of a high-performance anaerobic digester for the production of biogas from municipal solid waste.
377 citations
TL;DR: In this paper, a combination of treatments, consisting of the application of fertilizers and oxygen exposure, was evaluated in situ during a period of six weeks, where conditions of a major spill were simulated by sprinkling crude-oil on experimental cells containing agricultural soil.
111 citations
TL;DR: In this paper, a study of the use of activated carbon (AC) in the clean up was undertaken with the aim of reducing the water contamination to a more acceptable level, which revealed that the powdered form of AC would be very effective in the remediation of petroleum-hydrocarbon contaminated ground water.
84 citations
TL;DR: In this article, waste collected from different receptacles and dumpsites in Port Harcourt metropolis was subjected to analysis: on average, it consisted of 66.6% volatile solids, 13.5% fixed solids and 19.1% liquid and 0.8% other components.
76 citations
Journal Article•
TL;DR: In this article, the authors investigated various concentrations of the total solids (TS) of municipal solid waste (MSW) in an anaerobic continuously stirred tank reactor (CSTR) and the corresponding amounts of biogas produced, in order to determine conditions for optimum gas production.
Abstract: Municipal Solid Waste (MSW) contains a relatively large amount of organic matter, which decomposes by the actions of microorganisms under anaerobic conditions to produce biogas. The total solids (TS) concentration of the waste influences the pH, temperature and effectiveness of the microorganisms in the decomposition process. This work investigated various concentrations of the TS of MSW in an anaerobic continuously stirred tank reactor (CSTR) and the corresponding amounts of biogas produced, in order to determine conditions for optimum gas production. Five laboratory-scale anaerobic batch digesters of 5 litres volume each were set up for the digestion of 2kg of shredded MSW diluted to a %TS concentration of 26.7%. The results from the batch experimentation were adapted to the design of a CSTR for the digestion of MSW. The CSTR was simulated over a range of %TS concentration of 4-10, at a maximum fractional conversion of 0.8 to cater for system inefficiencies. Mathematical models were developed for the process and solved using the Microsoft Visual Basic version 6.0 Programme. The results show the amount of biogas produced as a power function of the %TS concentration, indicating that as the process continues, a time comes when any marginal increase in the %TS concentration would no longer contribute to the increasing volume of biogas produced. The results further show that, given the limiting upper boundary of the %TS concentration, optimum biogas production in a CSTR digesting MSW cannot be ascertained with the concentration of the %TS alone.
67 citations
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TL;DR: In this article, the authors extensively review the principles of anaerobic digestion, the process parameters and their interaction, the design methods, the biogas utilisation, the possible problems and potential pro-active cures, and the recent developments to reduce the impact of the problems.
2,616 citations
956 citations
TL;DR: The origin, characteristics, and environmental impacts of oily sludge were introduced and no single specific process can be considered as a panacea since each method is associated with different advantages and limitations.
770 citations