Cu2 + biosorption USING Nannochloropsis salina IN MEDIUM Conwy

Muhammad Sjahrul

Abstract


The research is being conducted to solve the problem of Cu2+ pollution in the waters, as one of the pollutants with the greatest amount of erosion and mining activity. This study uses marine microalgae Nannochloropsis salina to adsorb Cu2+ and reduce the concentration of these metals in the water. There are many ways to remove metals from water has been done. However, the reason for the use of N. salina caused by the cost which is cheaper, its existence in the environment is abundance, and also the life cycle of N. salina is shorter. Application of various concentrations of Cu2+ ions in Conwy Medium with 25%o salinity, performed on day 9th, when the optimum growth is achieved. Observation of the growth of N. salina after exposure to metal ions is done every day and the determination of Cu2+ concentration in the filtrate and residue performed using atomic absorption spectrophotometer. We find out that the N. salina can be used as biosorbent to reduce the concentration of Cu2+ concentration in the waters with efficiency of 96.90% for 10 ppm Cu2+.


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ISSN : 2251-1563