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: 1038

Table of Content: June 2015; 9(6)

June 2015

Comparative evaluation of clays from Abakaliki Formation with commercial bentonite clays for use as drilling mud

The characteristics of clays from Abakaliki Formation, Southeastern Nigeria was evaluated to establish its suitability as drilling mud when compared with commercial bentonite such as Wyoming bentonite. The chemical, mineralogical and geotechnical properties were employed in assessing the suitability of Abakaliki clay as drilling mud. Mineralogically, the clays were all characterized as dominantly Illite as well as...

Author(s): Nweke, O. M., Igwe, E. O. and Nnabo, P. N.

June 2015

The extent of groundwater use for domestic and irrigation activities in Thiririka sub-catchment, Gatundu South District, Kiambu County, Kenya

Population increase in Thiririka sub-catchment is causing high demand of water against limited supply. Currently, only 12,000 households out of 250,000 in the catchment have access to pipe water. Groundwater offers the one of the available options to the limited and irregular supply of pipe water. This study aims to find out the extent to which groundwater as alternative source of water for both domestic and irrigation...

Author(s): Albert Kobina Mensah, Evans Appiah-Kissi, Kwabena Krah and Okoree D. Mireku

June 2015

Comparative evaluation of the concentrations of lead, cadmium and zinc in surficial sediments from two shallow tectonic freshwater lake basins, kenya

Sources of metals in the environment are widespread and data on typical concentrations in the various media and environmental settings exits worldwide. Distribution and comparative concentrations of some selected metals in surface sediments of two shallow tectonic freshwater basins were assessed, as useful indicators of the level or magnitude of anthropogenic influences, as well as other aquatic processes, considering...

Author(s): Job Mwamburi

June 2015

Patterns and correlates of solid waste disposal practices in Dar es Salaam city, Tanzania

This study examines the patterns and correlations of solid waste disposal practices among households in urbanized and populated Dar es Salaam city in Tanzania. The Tanzanian Household Budget Survey (HBS) data covering many households' characteristics was used. Multinomial Logit (MNL) model was applied to examine the underlying correlates of choosing ways to dispose garbage. About 35% of the households used rubbish...

Author(s): Peter John Binyaruka

June 2015

Protective role of lycopene and vitamin E against diazinon-induced biochemical changes in Oreochromis niloticus

The aim of the present study was to evalute the protective role effect of lycopene and vitamin E on oxidative stress in Oreochromis niloticus exposed to diazinon (DZN). Adult fish were exposed to two sublethal concentrations (0.76 and 2.3 mg/l) of DZN against the ameliorative effect of lycopene (10 mg/kg) and vitamin E (50 mg/kg) for 14 and 28 days. DZN significantly led to a decline in total antioxidant capacity (TAO)....

Author(s): Ahmed Th. A. Ibrahim

June 2015

Evaluation of some industrial effluents in Jos metropolis, Plateau State, Nigeria

Industrial effluents are generally discharged into receiving water bodies or disposed on land. These effluents are often used by the communities around for domestic activities like farming. Sometimes effluents gain access into wells or streams within the community. Analyses aimed to determine the strength of effluents of three different industries in Jos metropolis: industry A (a food industry), industry B (a...

Author(s): Grace Ovayoza Chris-Otubor and Patrick Olorunfemi

June 2015

Microgasification cookstoves and pellet fuels from waste biomass: A cost and performance comparison with charcoal and natural gas in Tanzania

Cooking with wood and wood charcoal is done by over 90% of Africa’s population; it has two major challenges: deforestation and indoor air pollution from cooking smoke, the latter being the top risk factor for disease in Tanzania. Microgasification stoves (top lit up draft [TLUD]) that burn pellets produced from agricultural waste have potential to address both of these issues. We examined the relative efficiency...

Author(s): Don Lotter, Nathan Hunter, Mary Straub and David Msola