Adsorption of cadmium (II) from aqueous solutions by activated carbon produced from Algerian dates stones ofPhoenix dactyliferaby H₃PO₄activation

Adsorption of Lead (II) from aqueous solutions onto activated carbon prepared from Algerian dates stones of Phoenix dactylifera.L (Ghars variety) by H3PO4 activation

“…The pH of the test solutions was adjusted using hydrochloric acid (0.1M) or sodium hydroxide (0.1M) 9 .…”

“…The flask was continuously shaken (50 rpm) at a desired temperature and pH range (2)(3)(4)(5)(6)(7)(8)(9)(10). At the end of each step, the supernatant liquids were filtered and the Pb(II) concentrations were determined using an atomic adsorption spectrophotometer.…”

“…Then, After 2 hours, the precursor was dried at 105°C and heated to 450°C. It was washed with distilled water, dried, and sieved to desired particle size 9 .…”

Removal of Heavy Metals from Wastewater using Date Palm as a Biosorbent: A Comparative Review

“…Similarly, the adsorption of Cd 2+ on to DP trunk fiber, AC derived from date stones and both the raw and chemically activated date pits was studied in batch tests of different parameters, as previously mentioned (Al-Ghamdi et al 2013;Chaouch et al 2013;Hilal et al 2012). The efficiency of the chemically activated date pits showed a three-fold increase compared with the raw date stones in terms of Cd 2+ adsorption capacity and the equilibrium time was achieved after 1 h (Hilal et al 2012).…”

“…There are two main methods for pretreatment of biosorbents: Physical or chemical. Physical pretreatment includes drying, grinding, (Chaouch et al 2014) (Chaouch et al 2013) (Haleem & Abdulgafoor 2010) (Ghorbani et al 2012) FIGURE 6. Effects of the adsorbent dose on the adsorption capacity and percentage removal of Cu 2+ cutting, thermal heating and steam activation, so it is easier, simple and less costly.…”