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Removal of Cadmium Ions from Industrial Wastewater Using Iraqi Ceratophyllum Demersum | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 23, Issue 8, 2012, Pages 71-84 | ||
| Author | ||
| Jameel M. Dhabab | ||
| Abstract | ||
| A new simple method was developed for the removal of cadmium ions from wastewater by using natural and modified dried leaves of (ceratophyllum demersum) . This plant is an Iraqi spices grew on the shores of Iraqi rivers. Optimal conditions were obtained (pH was 6, weight of adsorbent was1.5g, particle size was 300μm, temperature was30°c, contact time was 60 minute and concentration of cadmium ions was 10 mg/L).These parameters were applied on spiked samples (50 gm./L) and proved to be efficient( 95% removal for natural and 98% for sodium hydroxide treated modified ).A batch sorption isotherm showed that Temkin model was dominant for natural ceratophyllum demersum but Langmuir model for modified was the dominant. The thermodynamic parameters were given and showed that ΔH° was endothermic-positive value, ΔG° was found (a spontaneous process-negative value) and ΔS° was found positive value- increase of disorder of the process. FTIR was used to identify the activity of adsorption process by knowing of active sites on the surface of adsorbent. | ||
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