REMOVAL OF CADMIUM IONS FROM AQUEOUS SOLUTION USING SYENITE AS LOW-COST ADSORBENT
2019
In this research work, natural adsorbent Syenite, which is found in Botaw Mountain, between Kadetchin and Yenattha Village, Mandalay Division, has been used for sorption studies on toxic heavy metal (Cd2+). Experimental study was carried out under several variables including the initial concentration (2-10 ppm), the amount of sorbent (0.05- 0.3 g), contact rate (200 rpm per min) and the pH (6) to indicate the optimum point and the removal efficiency of the sorbent. The experimental results were analyzed by using the Langmuir and Freundlich isotherm. The percent removal of cadmium on Syenite was found to be 50.62% with initial metal ion concentration 10 ppm at 0.1g/100ml of syenite. On the basic of dosage and concentration methods, it was found that the experimental result agreed to both Langmuir and Freundlich equations.
KEYWORDS: Syenite, Cadmium, Langmuir and Freundlich equation, adsorbent, removal efficiency
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