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Effect of PH and Concentration on Cd (II) Ion Absorption Using Activated Carbon Longan Skin (Euphoria Logan Lour)

	International Journal of Scientific Research and Engineering Development (IJSRED)	Full Text:
	Published Issue : Volume-4 Issue-2
	Year of Publication : 2021
	Unique Identification Number : IJSRED-V4I2P98
	Authors : Randu Indra Gunawan, Desy Kurniawati, Mawardi, Rahadian Zainul
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Abstract :

The Cd (II) ion is one of the hazardous metal ions produced from various industrial wastes and the presence of the waste needs to be addressed. Adsorption using activated carbon adsorbent longan skin is proven to absorb Cd (II) ions. In this study, a batch method was used to test variations in pH (2, 3, 4, 5, 6) and concentration (50, 100, 150, 200, 250, 300, 400) mg / L. The optimum results obtained in each variation were at pH 3 with a concentration of 250 mg / L with an absorption capacity of 28.075 mg /g.