| Autor: |
Syah, Muhaiyat, Rosnelly, Cut Meurah, Pontas, Komala, Supardan, Muhammad Dani, Syaubari |
| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 3082 Issue 1, p1-7, 7p |
| Abstrakt: |
The use of dolomite mineral rock as an adsorbent to adsorb heavy metal waste is particular concern to be handled properly so that there is no danger and damage to the environment. The use of dolomite mineral rock as an adsorbent is expected to be able to adsorb heavy metals well after synthesizing the adsorbent into nanoparticle size. This research aims to find out the characteristics of the dolomite adsorbent which will be used as raw material for the adsorption of Fe metal ions. The synthesis of dolomite nanoparticles was carried out using the co-precipitation method, and a physical activation process was carried out at 900 °C to obtain a nanoparticle-sized dolomite adsorbent. Then the characteristics of dolomite nanoparticles were determined using SEM, XRD, and PSA. The characteristics of the dolomite material produced are nanoparticle-sized according to the results of the particle size analyzer (PSA) test on the adsorbent which is activated at a temperature of 900 °C, the particle size is 41.57 nm. Best-fitted data of ferrous metal (Fe) in synthetic mine acid water from the test results obtained the optimum concentration of 50 ppm with an efficiency of>90%, while the optimum adsorption time condition was obtained at 90 minutes. The adsorption isotherm obtained is the Langmuir isotherm at 90 minutes where the highest regression coefficient (R2) is 0.9967. The best adsorption kinetics were obtained at first order reaction at 150 ppm, and the highest regression coefficient (R2) at 0.9396. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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