January 2011

Geochemistry and ionic interaction in the Bizerte Lagoon waters (Northern Tunisia)

  The Bizerte Lagoon is classified in the category of medium salinity environments. The lagoon geochemistry, with regard to the major ions, is essentially controlled by the continental contributions and interactions with the marine environment. The geochemical analyses of the major ions as well as their behaviour in the lagoon water permitted to describe the eventual ability of a solution chemical...

Author(s): Amor Ben Garali, Mohamed Ouakad and Moncef Gueddari

January 2011

Mortality and survival of eggs and chicks of Western Reef Heron Egretta gularis on Nakhilo Island, Persian Gulf, 2008

  In a study on breeding processes of Western Reef Heron Egretta gularis carried out from March to September 2008 on Nakhiloo Island, we estimated the breeding population, mortality, natality and the breeding success of this species. The breeding success during the incubation, nestling, post-nestling and overall stages were 62.1, 46.4, 39.2 and 49.2%, respectively. Eating of the eggs by Black...

Author(s): Behrouz Behrouzi-Rad, Rahman Rasekhi and Sima Momeni

January 2011

Removal of Fe(II), Cu(II), Zn(II), and Pb(II) ions from aqueous solutions by duckweed

  Duckweed was used to study the adsorption of Fe(II), Cu(II), Zn(II), and Pb(II) ions from aqueous solutions. The experimental conditions which includes; pH, contact time, initial concentration, and loading weight on the removal process were investigated. Bach adsorption was studied at 30°C. The efficiency of adsorption depends on pH value, it increases with the increase of pH value from (2-8 ) in range...

Author(s): Jameel M. Dhabab