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Omobolaji Taofeek Opafola
Department of Civil Engineering, Olabisi Onabanjo University
Nigeria

Adebola A Adekunle
Department of Civil Engineering, Federal University of Agriculture, Abeokuta
Nigeria

Adedayo Adekunle Badejo
Department of Civil Engineering, Federal University of Agriculture, Abeokuta
Nigeria

Olayemi Johnson Adeosun
Department of Agricultural & Bio-resources Engineering, Federal University of Agriculture, Abeokuta
Nigeria

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Potentials of bentonite enhanced termite mound soil for bottom lining in waste containment system

Omobolaji Taofeek Opafola, Adebola A Adekunle, Adedayo Adekunle Badejo, Olayemi Johnson Adeosun
  J. Degrade. Min. Land Manage. , pp. 2185-2191  
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Abstract


The sole purpose of a compacted landfill liner is to contain and mitigate the impact of leachate on the environment. This research assessed the engineering properties of bentonite enhanced termite mound mixture to ascertain their suitability as an alternate landfill liner. The mixture of mound soil and bentonite was proportioned by percentage weight as (100:0), (95:5), (90:10) and (85:15) respectively. The compaction analysis reveals an optimum moisture content ranging from 13.80% to 18.52% and a maximum dry density that varied from 1.72 g/cm3 to 1.88 g/cm3. The hydraulic conductivity result of 15% bentonite-mound soil mixture (0.23 x 10-9 m/s) established hydraulic conductivity less than 1 x 10-9 m/s, which satisfied the criteria for landfill liner. Hence, a mixture of 15% bentonite enhanced mound soil is found suitable as an alternate bottom liner.

Keywords


bentonite; compaction; hydraulic conductivity; landfill liner; termite mound

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References


Amadi, A.A. and Eberemu, A.O. 2013. Characterization of geotechnical properties of lateritic soil-bentonite mixtures relevant to their use as barrier in engineered Waste Landfills. Nigerian Journal of Technology 32 (1): 93-100.

Amadi, A.N., Okunlola, I.A., Eze, C.J., Jimoh, M.O., Unuevho, C. and Abubakar, F. 2015. Geotechnical assessment of clay deposits in Minna, North-Central Nigeria for use as liners in sanitary landfill design and construction. American Journal of Environmental Protection 3 (3): 67-75.

Benson, C.H., Zhai, H. and Wang, X. 1994. Estimating hydraulic conductivity of clay liners. Journal of Geotechnical Engineering ASCE, 120.2(2): 366-387.

British Standard (BS) 1377. 1990. Methods of Tests for soils for Civil Engineering Purposes. British Standards Institutions, London. 8-200p

Daniel, D.E. 1993. Clay liners. In: Geotechnical practice for waste disposal. Chapman & Hall, London, UK, 137-163.

Daniel, D.E. 1991. Design and construction of RCRA/ CERCLA final covers. In: Soils used in cover systems. EPA/ 625/491/025, US EPA, Cincinnati, Ohio.

Kabir, M.H. and Taha, M.R. 2004. Assessment of physical properties of a granite residual soil as an isolation barrier. Electronic Journal of Geotechnical Engineering 9B

Kavya, M.P and Anjana, T.R. 2016. Effect of bentonite on hydraulic conductivity of compacted soil liners. International Journal of Advanced Research Trends in Engineering and Technology 3(23): 74 -77.

Ojuri, O. and Oluwatuyi, O. 2017. Strength and Hydraulic Conductivity Characteristics of Sand-Bentonite Mixtures Designed As a Landfill Liner. Jordan Journal of Civil Engineering 11(4): 614-622.

Oyediran, I.A. and Iroegbuchu, C.D. 2013. Geotechnical characteristics of some southwestern Nigerian clays as barrier soils. Journal of Science 15: 17-19.

Rakshit, S. and Pal, S.K. 2015. Compaction and hydraulic conductivity characteristics of bentonite mixed with local soil. International Journal of Engineering Research & Technology 4(2): 1068–1072.

Rowe, R.K., Quigley, R.M. and Booker, J.R. 1995. Clayey barrier systems for waste disposal facilities, E & FN Spon, London.

Tuncan, A., Onur, M.I., Akpinar, K. and Tuncan, M. 2016. Use of sepiolite and zeolite mixtures as a landfill liner. International Journal of Waste Resources 6(1): 197, doi: 10.4172/2252-5211.1000197.

US EPA, 1989. Requirements for Hazardous Waste Landfills, Design, Construction and Closure, Tech. Rep. EPA-125/4-89. 022, EPA, Cincinati, Ohio, USA


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