ISSN: 1813-0410

Keywords : Pollution

Kinetic and thermodynamic studies for the adsorption of Nickel (II) by Basil seeds in aqueous solutions

Elham M . AL-Rufaie; Beidaa A.kadhim

journal of kerbala university, Volume 11, Issue 1, Pages 135-145

Environmental pollution as a result of a heavy metal presence led to serious health problems. Inthis study, the adsorption by swollen Basil seeds were determined. The adsorption behavior of Basil seeds with respect to Nickel (II) has been studies by batch method to consider its application in this field.The effects of various experimental parameters like contact time, dosage of Basil seeds, initial concentration of the metal ion, pH of solution, and temperature have been investigated .The removal percentage is a pH dependent and decrease with increase in temperature, The best removal were at 200C. The equilibrium adsorption experimental data were found to fit Freundlich isotherms for Nickel (II). The pseudo-first and second order kinetic model both fitted the kinetic.The thermodynamic parameters, (∆0G) was found to be positive and become negative at low temperature (below 100C), ∆0H is negative that means exothermic adsorption process and ∆0S is negative also which indicate the increase in the order at the solid-solution interface.

Evaluate the efficiency of two water treatment plants of drinking water in City of Kerbala - Kerbala Governance – Iraq

journal of kerbala university, Volume 7, Issue 4, Pages 1-9

The study was designed to evaluate the efficiency of two water treatment plants of drinking water in City of Kerbala as a model for the purification stations in Kerbala City- Province of Kerbala, and from December 2012 to May 2013,Many physio-chemical properties factors affecting water quality such as temperature, turbidity, conductivity EC, pH, dissolved Oxygen DO, biological demand oxygen BOD5, total dissolved substances TDS, total hardness, TH, nitrate NO3, phosphate PO4, sulphate SO4, Calisum Ca, magnesium Mg, potassium K, sodium Na and residual chlorine Cl. Also biological factors which included bacterial indicators for water pollution (total Coliform, fecal Coliform, fecal streptococci, Escherichia coli). Samples were collected monthly from six stations are H1,H2,H3, and R1,R2,R3 which represents source processing of crude water, sedimentation basin , basins final stages after chlorination in Al-Husain and Al- Hur water plant respectively.
The results showed the presence of fluctuation in most of the properties studied in both treatment plants, as well as the presence of greater numbers of bacteria than permissible limit environmentally counting months, indicating a defect in the purification process.