پديد آورندگان :
alshuiref, abubker a. el-mergib university - faculty of engineering - chemical and petroleum engineering department, Khoms, Libya , ibrahim, hesham g. al-asmarya islamic university - faculty of marine resources - mechanical engineering department, Zletin, Libya , ben mahmoud, mahmoud m. el-mergib university - faculty of engineering - chemical and petroleum engineering department, Khoms, Libya , maraie, ahmed a. el-mergib university - faculty of engineering - chemical and petroleum engineering department, Khoms, Libya
چكيده فارسي :
In this study, the adsorption of Cu(II) ions from aqueous solutions onto Activated Carbon prepared from Acacia leaves. (AAC) was investigated. The experiments were performed in a batch system at different parameters (contact time, adsorbent dosage, initial concentration of adsorbate, agitation rate, temperature, particle diameter, and solution pH) were varied in order to establish the optimum conditions for copper removal using AAC, and the copper ions adsorption capacity was evaluated after equilibrium was attained. The results indicate to that, the removal was effective at low Cu(II) concentrations and a natural pH value, and the optimum conditions for Cu(II) removal operation from synthetic solution investigated were 120 minutes, 300 rpm, and 0.375 mm as a contact time, agitation rate, and particle diameter respectively, and pH value equals to 6 at the temperature 30 ± 1 oC. Also the adsorbent dose 0.5 g/100 ml was sufficient for the high removal of Cu(II) from solution for studied batches which is reach up to 95.3, 77.42, 53.4, 37.6, 26.5, 18.4, 15.4, and 12.15% respectively for studied batches 100, 200, 300, 400, 500, 600, 800, and 1000 ppm respectively. The results obtained from this study show that, the AAC can be used as low cost adsorbent for completely removal of Cu(II) from aqueous solution specially at low concentrations.
كليدواژه :
Copper , Acacia leaves , Adsorption , Spectrophotometer
