<![CDATA[The increasing use of incinerators as a waste treatment technology has resulted in the emission of acidic gases, including sulfur dioxide (SO₂), hydrogen chloride (HCl), and hydrogen fluoride (HF), which pose significant risks to environmental quality and public health. This study aimed to characterize the performance of a wet scrubber using calcium carbonate (CaCO₃) derived from green mussel (Perna viridis) shells as a natural absorbent for acid gas removal through Computational Fluid Dynamics (CFD) simulation. The simulation was performed using ANSYS Fluent with the species transport model and stoichiometric reactions between CaCO₃ and SO₂, HF, and HCl. The inlet gas concentrations were set at 23.65 mg/Nm³ for SO₂, 0.58 mg/Nm³ for HF, and 16.90 mg/Nm³ for HCl. The scrubber performance was evaluated based on the reduction in outlet gas concentrations and removal efficiency. The simulation results showed that the SO₂ concentration decreased to 13.06 mg/Nm³ with a removal efficiency of 44.80%, HF decreased to 0.32 mg/Nm³ with a removal efficiency of 44.80%, and HCl decreased to 9.33 mg/Nm³ with a removal efficiency of 44.43%. These reductions were attributed to the absorption process followed by neutralization reactions between the acidic gases and CaCO₃, producing more stable compounds. The findings demonstrate that a wet scrubber employing CaCO₃ derived from green mussel shells has considerable potential as an environmentally friendly natural absorbent for controlling acid gas emissions from incinerator flue gas.]]>
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