African Journal of
Environmental Science and Technology

  • Abbreviation: Afr. J. Environ. Sci. Technol.
  • Language: English
  • ISSN: 1996-0786
  • DOI: 10.5897/AJEST
  • Start Year: 2007
  • Published Articles: 981

Table of Content: June 2011; 5(6)

June 2011

Minding Conflict Mining

Author(s): Oladele A. Ogunseitan

June 2011

A review of modeling approaches in activated sludge systems

  The feasibility of using models to understand processes, predict and/or simulate, control, monitor and optimize WasteWater Treatment Plants (WWTPs) has been explored by a number of researchers. Mathematical modeling provides a powerful tool for design, operational assistance, forecast future behavior and control. A good model not only elucidates a better understanding of the complicated biological and...

Author(s): N. Banadda, I. Nhapi and R. Kimwaga

June 2011

Efficiency of different coagulants combination for the treatment of tannery effluents: A case study of Bangladesh

  This study has focused on the physico-chemical parameter of tannery effluents as well as the treatment efficiency of alum, ferric chloride and lime, addressed as different treatments. Sample collection and analysis were performed using standard method.  Pollutant removal efficiency was measured in terms of reduction in value of total solid (TS), suspended solid (SS), total dissolved solid (TDS), color,...

Author(s): K. M. Nazmul Islam, Khaled Misbahuzzaman, Ahemd Kamruzzaman Majumder andMilan Chakrabarty

June 2011

Influence of different concentration of heavy metals on the seed germination and growth of tomato

  Some heavy metals in higher doses may cause metabolic disorders and growth inhibition for most of the plant species. This study was performed in order to evaluate two tomato varieties (Barakat and Local tomato) response to ordinary Heavy Metals (Fe, Pb and Cu) in northern of Iran. Five doses (0, 0.001, 0.01, 0.1 and 1%) of lead acetate, cupric carbonate and ferric chloride were investigated....

Author(s): Yaqvob Mami, Golale Ahmadi, Masoud Shahmoradi and Hamid Reza Ghorbani

June 2011

Major ions and trace elements partitioning in unsaturated zone profile of the Densu river basin, Ghana and the implications for groundwater

  Soil solution samples were extracted from a vertical unsaturated zone profile and groundwater samples were obtained from the Densu river basin, Ghana.  Major ions and trace metals in the soil solution, groundwater samples and solid soil (Ca2+, Na+, Mg2+, K+, NO3-, SO42-, Cl-, HCO32-, PO43-, Fe, Mn, V, Cu, Zn, Cr) were analyzed along with other hydrochemical parameters. Impact of the unsaturated zone soil...

Author(s): Edward K. P. Bam, , Tetteh T. Akiti, Shiloh Osae, , Samuel Y. Ganyaglo, Dickson Adomako, Abass A . Gibrilla , Elikem Ahialey and Godfred Ayanu

June 2011

Assessment of contamination by organochlorine pesticides in Solanum lycopersicum L. and Capsicum annuum L.: A market survey in Nigeria

  This study investigated the presence and levels of organochlorine pesticides (OCPs) (hexachlorobenzene (HCB), α‑, β‑, δ‑, and γ‑hexachlorohexane (HCH), dieldrin, dichloro-diphenyl-trichloroethane (p,p’-DDT), dichloro-diphenyl-dichloroethylene (p,p’-DDE), dichloro-diphenyl-dichloroethane (p,p’-DDD) and trans-nonachlor) in Solanum lycopersicum andCapsicum...

Author(s): Nsikak U. Benson and Aruwajoye I. Olufunke

June 2011

Predominant melliferous plants of the western Sudano Guinean zone of Cameroon

  Between September 2003 and March 2005, melissopalynological methods were used to access the predominant melliferous plants (PMP) in 104 honey samples collected from the Soudano Guinean highlands zone of west Cameroon. A total of 19 PMP from 11 families were identified, Asteraceae is the most represented. Trees and herbs were frequently exploited. Spontaneous PMP were more represented. Perennial PMP...

Author(s): Dongock Nguémo Delphine, Tchoumboue Joseph, Youmbi Emmanuel, Zapfack Louis, Mapongmentsem Pierre Marie and Tchuenguem Fohouo Fernand-Nestor

June 2011

Distribution and ecology of the superior mushrooms of the Aulnaie of Ain Khiar (El Kala National Park, Northeastern Algeria)

  The macro-ecology of the superior mushrooms in the peat land of the El Kala National Park (Algeria) is totally unknown. The research presented here aims at determining the environmental factors which might explain the distribution of mushrooms and contribute to the knowledge of the mycofloristic composition of this particular environment. For that purpose, we selected a protected site in the El Kala National...

Author(s): Radia Djelloul and Boudjemaa Samraoui

June 2011

Preliminary gut content and dentition analysis reveal subtle resource partitioning and feeding adaptations within a haplochromine cichlid community of Lake Victoria satellite lake

  The trophic relationships between six haplochromine cichlids of Lake Kanyaboli, a satellite lake of Lake Victoria that has not been infested by the Nile perch (Lates niloticus), were studied as a first step towards understanding the cichlid community structure in this threatened wetland ecosystem. Co-efficient of similarity analysis of diet revealed subtle trophic resource partitioning within this...

Author(s): Romulus Abila