EFFECT OF COMPETING CATION SODIUM, CALCIUM, AND MAGNESIUM ON ZINC ADSORPTION ONTO SEDIMENT FROM ANCOL, JAKARTA BAY, JAKARTA PROVINCE
<p align ="justify">Rapid development of industrial activities in Jakarta leads to increasing amount of pollutant in the sea of Jakarta Bay. Zinc (Zn) is a common substance used in many kind of industry. The concentration of Zn in the sea of Jakarta Bay has reached the maximum limit...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/26351 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align ="justify">Rapid development of industrial activities in Jakarta leads to increasing amount of pollutant in the sea of Jakarta Bay. Zinc (Zn) is a common substance used in many kind of industry. The concentration of Zn in the sea of Jakarta Bay has reached the maximum limit of Zn concentration regulated by Indonesian State Minister for the Environment in the sea for marine biota. Marine sediment plays an important role in adsorption process of dissolved metal in the seawater. XRD analysis of Jakarta Bay sediment shows dominant mineral of the sediment which are quartz (56.4%), kaolinite (17.5%), and pyrite (13.7%). Physical and chemical characterization of Ancol Sediment showed organic carbon content as much as 5.41%, cation exchange capacity 29.07 meq/100 gram, surface area 29.388 m2/gram, specific gravity 2.63 g/cm3 , and the presence of hydroxyl group. A batch sorption model which assumed the pseudo-second order mechanism, was developed to predict the equilibrium sorption capacity. Adsorption of zinc onto Ancol sediment followed Langmuir isotherm. In addition of sodium to the system, zinc adsorption followed Freundlich isotherm and sorption capacity decreased by 0.68%. In addition of calcium to the system, zinc adsorption followed Freundlich isotherm and sorption capacity decreased by 0.91%. In addition of magnesium to the system, zinc adsorption followed linear isotherm and sorption capacity decreased by 2.22%. In artificial seawater, zinc adsorption followed Langmuir isotherm and sorption capacity decreased by 12.09% compared with absence of competing cation. Adsorption of Zn in presence of each sodium and calcium in artificial seawater were specifically compatible with competitive Langmuir isotherm.<p align ="justify"> |
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