Electronic Theses and Dissertation

Telah dilakukan penelitian uji adsorpsi logam ion mangan menggunakan adsorben pasir putih dengan alat Housing Filter dengan variasi ukuran mesh, waktu kontak, dan konsentrasi. Analisis mangan mengggunakan Spektrofotometri UV-Vis. Parameter analisis ion mangan meliputi akurasi, presisi, Limit Of Detection (LoD) dan Limit Of Quantification (LoQ). Berdasarkan hasil penelitian menunjukkan bahwa parameter analisis ion mangan memenuhi syarat akurasi dengan prolehan persentase recovery 98,50% hingga 101,81% selanjutya uji presisi dengan perolehan %RSD ≤ 2% dan nilai LoD dan LoQ dalam penelitian yaitu 0,05672 dan 0,189091. Berdasarkan uji adsorpsi ion logam mangan pada adsorben pasir putih dengan variasi ukuran terbaik menunjukkan ukuran 20 mesh memiliki daya serap yang sangat baik dalam menyerap ion logam mangan. Berdasarkan uji adsorpsi pasir putih dengan variasi waktu kontak optimal adsorpsi pada waktu 30 menit dengan efisiensi adsorpsi sebesar 77,23% sedangkan berdasarkan uji variasi konsentrasi menunjukkan peningkatan daya adsorpsi ion logam mangan pada konsentrasi 30 mg/L dengan efisiensi adsorpsi sebesar 89,07%. Isoterm Langmuir adalah model yang paling cocok digunakan dalam adsorpsi ion logam Ion mangan karena memiliki nilai R2 0,9819. Dari percobaan ini, dapat disimpulkan bahwa pasir putih Lhok Mee Krung Raaya Aceh Besar dapat dijadikan sebagai adsorben penyerap logam Ion Mn yang efisien dalam menyerap ion Mn dalam air.

Kata Kunci: Housing Filter, Adsorben, Adsorpsi, Pasir Putih, Ion Mangan

A research on the adsorption test of manganese metal ions using white sand adsorbents with Housing Filters with variations in mesh size, contact time, and concentration has been carried out. Manganese analysis using UV-Vis Spectrophotometry. Manganese ion analysis parameters include accuracy, precision, Limit Of Detection (LoD) and Limit Of Quantification (LoQ). Based on the results of the study, it was shown that the analysis parameters of manganese ion met the accuracy requirements by obtaining a recovery percentage of 98.50% to 101.81%, then the precision test was carried out by obtaining %RSD ≤ 2% and the LoD and LoQ values in the study were 0.05672 and 0.189091 . Based on the adsorption test of manganese metal ions on white sand adsorbents with the best size variation, the 20 mesh size showed very good absorption in absorbing manganese metal ions. Based on the white sand adsorption test with variations in contact time the optimal adsorption time was 30 minutes with an adsorption efficiency of 77.23% while the concentration variation test showed an increase in the adsorption power of manganese metal ions at a concentration of 30 mg/L with an adsorption efficiency of 89.07%. The Langmuir isotherm is the most suitable model for adsorption of metal ion manganese ion because it has an R2 value of 0.9819. From this experiment, it can be concluded that the white sand of Lhok Mee Krung Raaya Aceh Besar can be used as an adsorbent that adsorbs Mn metal ions efficiently in absorbing Mn ions in water. Keywords: Filter Housing, Adsorbent, Adsorption, White Sand, Manganese Ion