RESEARCH PAPER
CHARACTERISTIC AND ADSORPTION CAPACITY OF ACTIVATED CARBON AND BENTONITE TO HEAVY METAL
 
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Department of Chemistry, Universitas Negeri Surabaya, Indonesia
CORRESPONDING AUTHOR
Nuniek Herdyastuti Herdyastuti   

Department of Chemistry, Universitas Negeri Surabaya, Surabaya, Indonesia
Publication date: 2019-09-07
 
Eurasian J Anal Chem 2019;14(3):emEJAC-00349
 
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ABSTRACT
Background:
Laboratory waste can take the form of organic and inorganic materials if it accumulates, it can be harm the surrounding environment such as soil, water and plants. Some heavy metals are discharged without prior processing so it is feared that they can cause environmental pollution. The purpose of this research was to identify heavy metals from the laboratory activities waste and reduce that heavy metals using activated carbon and bentonite.

Material and methods:
The adsorption method using adsorbents such as activated carbon and bentonite is widely used to reduce metal contamination in waste and for analysis of heavy metal content in this research we used an atomic absorption spectrophotometer

Results:
The results of the analysis show the presence of several heavy metals such as Pb, Cu, Ag, Co, Cd, Cr and Hg. Identified laboratory waste results are quite high at 35 g/L for Cu, 1200 ppm for Pb metal and 220 ppm Ag. Adsorption using carbon and bentonite showed a reduction of Cu in the laboratory waste of 90.8 and 83.9% respectively with 2 gram adsorbents.

Conclusions:
This shows that carbon and bentonite can be used as adsorbents to reduce metals in laboratory waste.

eISSN:1306-3057