View options
Result details

Results per page
Articles per page View Sort by

2 results matched your search query
Keywords = Contact

  • Open Access Research Article
    Export citation: APA   BibTeX   RIS
    Trends Journal of Sciences Research 2018, 3(1), 33-51. http://doi.org/10.31586/Geosciences.0301.05
    262 Views 141 Downloads 4 Shares PDF Full-text (5.491 MB) PDF Full-text (5.476 MB) PDF Full-text (5.476 MB)  HTML Full-text
    Abstract
    The magnetotelluric method has been used in this work to compare the nature of the sedimentary-metamorphic contacts of the Douala and Kribi-Campo sub-basins in Cameroon. The results show that the sedimentary-metamorphic contact zones for the two sub-basins, marked by a subsidence of the low resistivity materials on the sedimentary formations
    [...] Read more.
    The magnetotelluric method has been used in this work to compare the nature of the sedimentary-metamorphic contacts of the Douala and Kribi-Campo sub-basins in Cameroon. The results show that the sedimentary-metamorphic contact zones for the two sub-basins, marked by a subsidence of the low resistivity materials on the sedimentary formations and uplift of the high resistivity materials characterized by intrusive bodies of higher values of resistivity on the metamorphic formations, are structurally similar,. However, the very low values of resistivity of rocks in the Douala sub-basin is suggestive of high porosity, permeability and high level of saline ions dissociation leading to high conductivity. These rocks should be of unconsolidated sediments for the sedimentary formation and gneiss for the metamorphic formation. On the contrary, the very high values of resistivity for rocks in the Kribi-Campo sub-basin indicate the absence of free mobile electrons and ions and low porosity, permeability and non-conductivity. The sedimentary formation of this sub-basin should be composed of limestone and conglomerates rocks with some gneissic and unconsolidated granitic materials. The rocks in the metamorphic formation should be completely granitic in nature. The shallow depth of penetration of only 4 km of telluric current in the Douala sub-basin is enough evidence that the tectonic events responsible for the emplacement of this contact zone were limited to the earth crust. On the other hand, in the Kribi-Campo sub-basin the tectonic events should have originated from within the earth mantle as the depth of penetration of telluric current attains 150 km.  Full article
    Figures

    Figure 1 of 8

    References
    [1]
    Brownfield Michael, E., and Charpentier Ronald R. (2006). Geology and Total Petroleum Systems of the West-Central Coastal Province (7203), West Africa. U.S. Geological Survey Bulletin 2207-B, Reston, Virginia: 2006
    [2]
    Edwards, Alan, and Bignell Roger, (1988). Hydrocarbon potential of W. African salt basin: Oil and Gas Journal, v. 86, no. 50,71?74.
    [3]
    SNH, (2015). Blocks on offer in the Rio Del Rey, Douala/Kribi-Campo and Mamfe basins.
    [4]
    Clifford, A. C. (1986). African oil?past, present, and future, in Halbouty, M.T., ed., Future petroleum provinces of the world: American Association of Petroleum Geologists Memoir 40, 339?372.
    [5]
    Rabinowitz, P. D., Labrecque, J. (1979). The Mesozoic South Atlantic Ocean and evolution of its continental margins. J Geophys Res 1979; 84 (11): 5973-6002.
    [6]
    Ross, D. (1993). Geology and hydrocarbon potential of Rio Muni area, Equatorial Guinea: Oil and Gas Journal, v. 91, August 23, 1993, 96?100.
    [7]
    Turner, J. P., (1995). Gravity-driven structures and rift basin evolution?Rio Muni Basin, offshore West Africa: American Association of Petroleum Geologists Bulletin, v. 79, no. 8, p. 1138?1158.
    [8]
    Nguene, F. R, Tamfu, S. F., Loule, J. P., Ngassa, C. (1991). Palaeoenvironments of the Douala and Kribi/Campo sub-basins, in Cameroon, West Africa. In: Curnelle R, Ed. African Geology, 1 st Colloquium on Stratigraphy and Paleogeography of West African Sedimentary Basins, 2 nd Colloquium of African Micropaleontology. Libreville 1991, Boussens: Elf Aquitaine 1992; 129-39.
    [9]
    Shang, C. K. (2001). Geology, Geochemistry and Geochronology of Archaean Rocks from the Sangmelima Region, Ntem complex, NW Congo craton, South Cameroon. Ph.D. Thesis, University of Tu?bingen, Germany, 313p.
    [10]
    Tchameni, R., Mezger, K., Nsifa, N.E., Pouclet, A., (2001). Crustal origin of Early Proterozoic syenites in the Congo craton (Ntem complex), South Cameroon. Lithos 57, 23?42.
    [11]
    Nsifa, E.N., Riou, R., (1990): Post Archaean migmatization in the charnockitic series of the Ntem complex, Congo craton, southern Cameroun. 15th Colloquium on African Geology, Publications Occasionnelle, CIFEG 22, 33?36.
    [12]
    Lasserre, M., Soba, D., (1976). Age Lib?rien des granodiorites et des gneiss a pyrox?nes du Cameroun M?ridional. Bulletin BRGM 2 (4), 17?32.
    [13]
    Njoh O. A., Essien J. A., et Tembi A., (2014). Albian ? Turonian palynomorphs from the Mundeck and Logbajeck Formations, Ediki River, north-western part of Douala sub-basin. Sciences, Technologies et Developpement, volume 15, 66 ? 77, ISSN 1029 ? 2225
    [14]
    Njingti-Nfor (2004). New Methods of Analysing and Interpreting Audiomagnetotellurics Data. Doctorate thesis, University of Yaound? I, Yaound?, 185 p.
    [15]
    Recard N. N. P., Mfayakouo C. B., and Bitom D., (2014). Paleogeographic Evolution of the Eastern Edge of the Douala Basin from Early Cenomanian to Turonian. The Open Geology Journal, 8, 124-141.
    [16]
    Meyers J. B., Rosendahl B. R., Groschel-Becker H., Austin Jr J. A., Rona P. A. (1996). Deep penetrating MCS imaging of the rift-to-drift transition, offshore Douala and North Gabon basins, West Africa. Mar Petrol Geol 1996; 13 (7): 791-835.
    [17]
    De Vries, (1936). Mission de recherche des hydrocarbures du Cameroun effectu? en 1935 ? 1936. Rapport g?n?ral, Services des mines au Cameroun. 72p.
    [18]
    Njike Ngaha P., R, (2004). Palyno-stratigraphique et reconstitution des paleoenvironnements du Cr?tac? de l'Est du Bassin s?dimentaire de Douala (Cameroun).
    [19]
    Njike, N. P. R., and Belinga, S. M., (1987). Le Diachronisme du gr?s de base, le pal?ooenvironnement et le r?le de l?ouverture de l?Atlantique Sud. Ann. Fac. Sci. Terre IV No. 3-4, 103 ? 119.
    [20]
    Dumort, J. C., (1968). Notice explicative sur la faille de Douala ? Ouest. Direction des mines et de la g?ologie du Cameroun. 69p. index, 1 carte h.t.
    [21]
    Djomeni A. L., Ntamak-Nida M. J., Mvondo F. O., Kwetche P. G. F., Kissaaka J. B. I., and Mooh-Enougui E. (2011). Soft-sediment deformation structures in Mid-Cretaceous to Mid-Tertiary deposits, Centre East of the Douala sub-basin, Cameroon: Preliminary results of the tectonic control. Syllabus Review 2 (3), 2011: 92 - 105
    [22]
    Maurizot, P., Abessolo, A., Feybesse, J. L., Johan, V. and Lecomte, P. (1986). Etude et prospection mini?re du sud- ouest Cameroun. Synth?se des travaux de 1978 ? 1985. Rapport, BRGM, 274p
    [23]
    Toteu, S. F., Penaye, J., Poudjom Djomani, Y. H., (2004). Geodynamic evolution of the Pan-African belt in Central Africa with special reference to Cameroon. Canadian Journal of Earth Sciences, 41, 73?85.
    [24]
    Benderitter, Y. (1982). Interpr?tation des mesures magn?totelluriques obtenues avec un r?sistivim?tre ECA. CNRS, CRG, Garchy.
    [25]
    Manguelle-Dicoum, E. (1988). Etude G?ophysique des structures superficielles et profondes de la r?gion de Mbalmayo. Th?se de Doctorat es-sciences (G?ophysique). Universit? de Yaound?, 202 p.
    [26]
    Parasnis D. S. (1979). Principles of Applied Geophysics. Chapman and Hall. (3rd Edition) London, 275p.
    [27]
    Zohdy, A. A. R., Eaton, G. P. and Mabey, D. R. (1990). Application of Surface Geophysics to Ground-Water Investigations. 4th Edition, United States Geological Survey, Denver, 123p.
    [28]
    Geza K. (1966). Principles of Direct Current Resistivity Prospecting. Geopublication Associates Series 1- No. 1
    [29]
    Telford, W. M., Geldart, L. P., Sheriff, R. E. and Keys, D. A. (1990). Applied Geophysics. Cambridge University Press, Cambridge.
    [30]
    Cagniard, L. (1953). Basic Theory of the Magnetotelluric Method of Geophysical Prospecting. Geophysics, 18, 605-635.
    [31]
    Redmond, J. L. (1972). Null Combination in Fault Interpretation. Bulletin ?American Association of Petroleum Geologists, 56, 150-166.
    [32]
    Bates, R. L. and Jackson, J. A. (1987). Glossary of Geology. 3rd Edition, American Geological Institute, Alexandria, 788 p.
    [33]
    Lee, S. K., Kim, H. G., Song, Y. and Lee, C. (2009). MT2DInvMATLAB?A Program in FORTRAN and MATLAB for 2D Inversion. Computer and Geoscience, 35, 1722-1734.
    [34]
    Njingti-Nfor, Manguelle-Diccoum, E., Mbom-Abane and Tadjou, J. M. (2001). Evidence of Major Tectonic Dislocations along the Southern Edge of the Pan African Mobile Belt and the Congo Craton Contact in the Southern Region of Cameroon. The 2nd International Conference on the Geology of Africa, Assuit, Vol. 1, 799-811.
    [35]
    Owona Angue, M. L. C., Nguiya, S., Nouayou, R., Tokam Kamga, A. P. and Manguelle-Dicoum, E., (2011). Geophysical Investigation of the Transition Zone between the Congo Craton and the Kribi-Campo Sedimentary Basin (South-West Cameroon). South African Journal of Geology, 114, 145-158.
    [36]
    Iboum Kissaaka, J. B., Ntamak-Nida, M. J., Ngueutchoua, G., Mvondo Owono, F., Djomeni Nitcheu, A. L., Fowe Kuetche, P. G. and Bourquin, S. (2016). Syn-rift Tectonic Markers from Outcrops and Offshore Seismic Data of the Southern Part of Kribi-Campo Sub-Basin (Cameroon, West African Margin). Comunica??es Geological, 99, 35-42.
    [37]
    Kue Petou R. M., Owona Angue. M. L. C., Njingti-Nfor, N., Ndougsa-Mbarga, T. and Manguelle-Dicoum, E. (2017b). Determination of Structural and Geometrical Parameters of the Kribi-Campo Sedimentary Sub Basin Using Gravity Data. International Journal of Geosciences, 8, 1210-1224.
  • Open Access Research Article
    Export citation: APA   BibTeX   RIS
    Trends Journal of Sciences Research 2021, 1(1), 23-29. http://doi.org/10.31586/wastewater101003
    26 Downloads PDF Full-text (947.281 KB)  HTML Full-text
    Abstract
    Textile wastewater is considered as the most polluted of all industrial sectors, both from the amount produced and the effluent composition. Most of the previous researches concentrates on extracting dyes from water in a single solution. In real applications, the colored effluents contain more than one removable component. In this
    [...] Read more.
    Textile wastewater is considered as the most polluted of all industrial sectors, both from the amount produced and the effluent composition. Most of the previous researches concentrates on extracting dyes from water in a single solution. In real applications, the colored effluents contain more than one removable component. In this study, the adsorption of two textile dyes (Acid Red 1 and Brilliant Green) was investigated in a binary mixture. An adsorbent coating with zwitterionic interfaces was introduced as a new approach for wastewater treatment, named as zwitterionic adsorbent coating (ZwitAd). The derivative spectrophotometry for each dye was used to determine the precise wavelength. Consideration was given to the effect of pH, contact time, initial dye concentrations, and temperature. The findings show that the ZwitAd has a strong potential to simultaneously remove both dyes. Equilibrium was achieved within 300 min and to obtain a higher percentage removal of Acid Red Brilliant Green, ARBG, the optimal condition has been achieved. The higher percentage removal for AR1 and BG was reported at 92.14% and 90.18% respectively at 10BG-40AR (ppm) initial concentration.  Full article
    Figures

    Figure 15 of 9

    References
    [1]
    Gupta V K, Khamparia S, Tyagi I, Jaspal D and Malviya A 2015 Decolorization of mixture of dyes: A critical review Glob. J. Environ. Sci. Manag. Glob. J. Environ. Sci. Manag. 1 71–94.
    [2]
    Forgacs E, Cserháti T and Oros G 2004 Removal of synthetic dyes from wastewaters: a review Environ. Int. 30 953–71.
    [3]
    Drumond Chequer F M, de Oliveira G A R, Anastacio Ferraz E R, Carvalho J, Boldrin Zanoni M V and de Oliveir D P 2013 Textile Dyes: Dyeing Process and Environmental Impact Eco-Friendly Textile Dyeing and Finishing (InTech).
    [4]
    Thue P S, Sophia A C, Lima E C, Wamba A G N, de Alencar W S, dos Reis G S, Rodembusch F S and Dias S L P 2018 Synthesis and characterization of a novel organic-inorganic hybrid clay adsorbent for the removal of acid red 1 and acid green 25 from aqueous solutions J. Clean. Prod. 171 30–44.
    [5]
    Katheresan V, Kansedo J and Lau S Y 2018 Efficiency of various recent wastewater dye removal methods : A review J. Environ. Chem. Eng. 6 4676–97.
    [6]
    Drahansky M, Paridah M ., Moradbak A, Mohamed A ., Owolabi F abdulwahab taiwo, Asniza M and Abdul Khalid S H . 2016 Adsorption technique for the removal of organic pollutants from water and wastewater Intech i 13.
    [7]
    Rafatullah M, Sulaiman O, Hashim R and Ahmad A 2010 Adsorption of methylene blue on low-cost adsorbents: A review J. Hazard. Mater. 177 70–80.
    [8]
    Ngulube T, Ray J, Masindi V and Maity A 2017 An update on synthetic dyes adsorption onto clay based minerals : A state-of-art review J. Environ. Manage. 191 35–57.
    [9]
    Turabik M 2008 Adsorption of basic dyes from single and binary component systems onto bentonite: Simultaneous analysis of Basic Red 46 and Basic Yellow 28 by first order derivative spectrophotometric analysis method J. Hazard. Mater. 158 52–64.
    [10]
    Esan O S, Kolawole A O and Olumuyiwa A C 2019 The Removal of Single and Binary Basic Dyes from Synthetic Wastewater Using Bentonite Clay Adsorbent Am. J. Polym. Sci. Technol. 5 16–28.
    [11]
    Sellaoui L, Franco D S P, Dotto G L, Lima É C and Lamine A Ben 2017 Single and binary adsorption of cobalt and methylene blue on modified chitin: Application of the Hill and exclusive extended Hill models J. Mol. Liq. 233 543–50.
    [12]
    Aguedal H, Merouani D R and Iddou A 2019 Binary adsorption of two textile dyes onto diatomite: Kinetic and isotherm study Key Eng. Mater. 800 KEM 164–9.
    [13]
    Boudechiche N, Fares M, Ouyahia S, Yazid H, Trari M and Sadaoui Z 2019 Comparative study on removal of two basic dyes in aqueous medium by adsorption using activated carbon from Ziziphus lotus stones Microchem. J. 146 1010–8.
    [14]
    Azha S F, Shamsudin M S, Shahadat M and Ismail S 2018 Low cost zwitterionic adsorbent coating for treatment of anionic and cationic dyes J. Ind. Eng. Chem. 67 187–98.
    [15]
    Azha S F, Sellaoui L, Sharafee M, Ismail S, Bonilla-petriciolet A, Ben A and Erto A 2018 Synthesis and characterization of a novel amphoteric adsorbent coating for anionic and cationic dyes adsorption : Experimental investigation and statistical physics modelling Chem. Eng. J. 351 221–9.
    [16]
    Azha S F, Shahadat M and Ismail S 2017 Acrylic polymer emulsion supported bentonite clay coating for the analysis of industrial dye Dye. Pigment. 145 550–60.
    [17]
    Regti A, El Kassimi A, Laamari M R and El Haddad M 2017 Competitive adsorption and optimization of binary mixture of textile dyes: A factorial design analysis J. Assoc. Arab Univ. Basic Appl. Sci. 24 1–9.
    [18]
    Idan I J, Nurul S, Binti A, Jamil M, Abdullah L C, Shean T and Choong Y 2017 Removal of Reactive Anionic Dyes from Binary Solutions by Adsorption onto Quaternized Kenaf Core Fiber.
    [19]
    Khodaie M, Ghasemi N, Moradi B and Rahimi M 2013 Removal of Methylene Blue from Wastewater by Adsorption onto ZnCl 2 Activated Corn Husk Carbon Equilibrium Studies J. Chem. 2013.
    [20]
    Tang, R. Chong Dai, Chao Li, Weihua Liu, Shutao Gao, and Chun Wang. (2017) Removal of Methylene Blue from Aqueous Solution Using Agricultural Residue Walnut Shell: Equilibrium, Kinetic, and Thermodynamic Studies J. Chem. 2017.
    [21]
    Aljeboree A M, Alshirifi A N and Alkaim A F 2017 Kinetics and equilibrium study for the adsorption of textile dyes on coconut shell activated carbon Arab. J. Chem. 10 S3381–93.
Filter options
Publication Date
From to
Refine Publication Date
Subject Areas
Refine Subjects
Article Types
Refine Article Types
Countries / Territories
Refine Countries / Territories