September 2016

The use of magnetic susceptibility measurements to determine pollution of agricultural soils in road proximity

This research work presents a study on the application of magnetic susceptibility measurements and geochemical analysis for mapping or assessing heavy metal pollution in the agricultural soil in road proximity. The research work was also done to check any runoff of heavy metals pollution to the Owabi dam which serves as the main water sources to catchment areas and the whole of Kumasi Metropolis. This research work was...

Author(s): Brempong F., Mariam Q. and Preko K.

September 2016

Co-composting of sewage sludge and Echinochloa pyramidalis (Lam.) Hitchc. & Chase plant material from a constructed wetland system treating domestic wastewater in Cameroon

Trials were conducted at the Cité-Verte domestic wastewater treatment station (Yaoundé-Cameroon) in order to assess the effect of three sewage sludge: Macrophyte ratios on the co-composting process and compost quality. The ratios were T1: 25 kg of plant material (Echinochloa pyramidalis) and 75 kg sludge; T2: 50 kg of plant material and 50 kg sludge, and T3: 75 kg of plant material and 25 kg of sludge. The...

Author(s): Guy Valerie Djumyom Wafo, Pulcherie Matsodoum Nguemte, Wilfried Arsène Letah Nzouebet, Pierre François Djocgoue and Ives Magloire Kengne

September 2016

Geochemical assessment of toxic metals stocking in top-soil within the area of limestone quarry in Gombe of North-eastern Nigeria

This work presents an assessment of geochemical toxic metal stocking in top-soil within the area of a limestone quarry in Gombe State. Samples of topsoil from the area of a limestone quarry in Gombe (North-eastern Nigeria) were collected to analyse levels of hazardous substances such as of Hg, Fe, Zn, Ni, Mn, Cu, Cr, Cd and Pb. A total of 24 topsoil samples were collected around the radius of 0.5 km from the blasting...

Author(s): Usman Abdullahi Usman, Prashant Kumar,  Abatcha Babagana Abdulkadir, Hamman Ishaku Kamale, Hamza Maina Sadiq, Dahiru Danjuma Muhammed, Yusuf Ibrahim and Ibrahim Bukar Wulo

September 2016

Comparison of community managed projects and conventional approaches in rural water supply of Ethiopia

This study aimed to compare Community Managed Projects (CMP) approach with the conventional approaches (Non-CMP) in the case of Ethiopia. The data collection methods include a household survey (n=1806), community representative interviews (n=49), focus group discussions with district water experts (n=48) and observations of water systems (n=49). The data were collected from seven districts of two regions of Ethiopia....

Author(s): Beshah M. Behailu, Arto Suominen, Tapio S. Katko, Harri Mattila and Gashaw Yayehyirad

September 2016

Preliminary investigation of transfer of metals from soil to vegetables: Case study of Spinacia oleracea L.

The objective of the study was to measure concentrations of Cu, Ni and Zn in Spinacia oleracea cultivated at a site near the copper and nickel mine in Selebi Phikwe. The mean concentrations (in dry matter-basis) of Cu, Zn and Ni in the whole plant system were 7.30 ± 2.51, 6.02 ± 2.16 and 0.03 ± 0.02, mg/kg, respectively. Enrichment factors (EF) of Cu, Ni and Zn were far below the EF value of 1.5...

Author(s): Mosiamisi Mokgolele and Sello Alfred Likuku