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: 1126

Table of Content: February 2012; 6(2)

February 2012

Biosafety systems in Eastern and Central Africa

  This review examines the biosafety systems of selected countries in the Eastern and Central Africa. The biosafety systems are meant to safeguard human health, animal health and the environment against any possible risks posed by development and application of modern biotechnology. Though the focus is in the Eastern and Central African region, the study gives an overview of worldwide biosafety frameworks as...

Author(s): Godliving Mtui

February 2012

Water supply arrangements in developing countries: A case study of Blantyre City, Malawi

  The provision of potable water in the cities of developing countries has been of concern for a long time.  Most of the urban population, especially in unplanned settlements, relies on small-scale informal service providers. The challenge with such an arrangement, however, is that it has been associated with high charges, provision of poor quality water, unreliable and intermittent water supply, and a...

Author(s): B. U. G. Mughogho and I. B. M. Kosamu

February 2012

Characterization of methomyl and carbofuran degrading-bacteria from soils of horticultural farms in Rift Valley and Central Kenya

  he use of pesticides is very critical in protecting the farmers’ investment in seeds, fertilizer and labour since they provide a sure cover from damage by pests. The use of pesticides is therefore inevitable and the environmental pollution due to pesticides and their residues will continue to be a challenge. In this study, bacterial strains capable of degrading methomyl (S-methyl-N-[(methylcarbamoyl)...

Author(s): Kevin Mbogo Omolo, Gabriel Magoma, Kamau Ngamau and Tsanuo Muniru

February 2012

Removal of hazardous dye Ponceau-S by using chitin: An organic bioadsorbent

  There are numbers of applications of chitin for the removal of basic dyes and other colored organics from industrial effluents. In present research article there is focus on the preparation of bioadsorbent chitin and its application for the removal Ponceau-S dye from the aqueous solution by using chitin as an organic bioadsorbent. Chitin was characterized by scanning electron microscopy (SEM). Different...

Author(s): D. S. Shirsath and V. S. Shrivastava

February 2012

Estimation of pollution load from an industrial estate, south-western Nigeria

  The Ota industrial estate being one of the largest in the southwestern Nigerian, contributes significantly to its socio-economic development. This study is design to generate the much needed industrial emission data for efficient environmental monitoring and compliance. The industrial pollution projection survey (IPPS) and rapid pollution inventory survey (RPIS) models developed by the World Bank were used...

Author(s): Effiong Ukorebi ETIM

February 2012

Fluoride removal from water by zirconium (IV) doped chitosan bio-composite

  Water containing fluoride above 1.5 mg/L leads to health and environmental harms that creates skeletal and dental fluorosis. Adsorption technique prominently removes fluoride from water and its competence is reliant on development of recyclable, environmentally benign adsorbents. Many reported sorbents for defluoridation below stringent level 1.5 mg/L, displayed low to moderate adsorption capacity at varied...

Author(s): R. Dongre, D. N. Ghugal, J. S. Meshram and D. S. Ramteke

February 2012

Amino acids contents of four commercial Nile fishes in Sudan

  This study was intended to identify contents of amino acids (AAs) of four commercial Nile fishes in Sudan and to use them in fishmeal manufacture. The study fishes were Dabis (Labeo niloticus, Forskål, 1775), Himeila (Brycinus nurse, Rüppell, 1832), Garmout (Clarias gariepinus, Burchell, 1822) and Gargur (Synodontis schall, Bloch and Schneider, 1801). After producing dried meat of...

Author(s): M. O. Mohammed and D. I. Alim

February 2012

Decolorization of irgalite dye by immobilized Pseuodomonas putida on activated carbon, prepared from agriculture waste

  A carbon sorbent derived from an agriculture waste, mustard straw was applied to study the removal of irgalite dye from aqueous solution. Comparative study on adsorption and simultaneous adsorption and biodegradation (+) of irgalite dye using Pseuodomonas putida(MTCC 1194) with activated carbon prepared from mustard straw showed removal of 83.3% higher SAB, with respect to adsorption (70%). For...

Author(s): A. Ullhyan and U. K. Ghosh