Eksperimen proses ekstraksi aluminium dari limbah lumpur PDAM di dalam tangki berpengaduk

Saivi, Baradis and Wisnu W., Alun Gogo (2015) Eksperimen proses ekstraksi aluminium dari limbah lumpur PDAM di dalam tangki berpengaduk. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Limbah padat lumpur (LPL) masih menimbulkan permasalahan tersendiri bagi perusahaan daerah air minum (PDAM) karena jumlahnya relatif sangat banyak dan belum termanfaatkan secara maksimal. LPL memiliki kandungan Al2O3 yang cukup besar (18.5%), sehingga sangat berpotensi untuk dilakukannya recovery aluminium. Pada penelitian ini digunakan metode acidification untuk me-recovery aluminium karena metode ini memiliki efisien recovery yang lebih tinggi dan biaya operasional yang lebih rendah dibandingkan dengan metode lain. Metodologi dalam penelitian ini menggunakan acidification dengan pelarut HCl 32% guna mengekstrak aluminium dari LPL yang diambil dari Sistem Instalasi Pengolahan Air 1 (IPA 1) PDAM Bandarmasih Banjarmasin KAL-SEL. Tahapan proses dibagi menjadi beberapa tahap, yaitu tahap preparasi LPL PDAM Banjarmasin, tahap analisa karakteristik LPL PDAM Banjarmasin, tahap proses agitated leaching, dan tahap analisa karakterisasi filtrat hasil proses agitated leaching. Pada penelitian ini menggunakan serangkaian alat agitated leaching dan beberapa variabel, yaitu konsentrasi pelarut HCl (0.5, 1, 1.5, 2 dan 4 M), temperatur leaching (30, 50, 70, dan 90 ᵒC), dan waktu leaching (5, 10, 15, 20, 25 30, 40, 50, dan 60 menit). Hasil penelitian menunjukkan bahwa hasil optimum dicapai pada temperatur 90oC dan konsentrasi 2 M dengan recovery aluminium sebesar 68,49% pada waktu leaching 10 menit. Dari percobaan didapatkan bahwa semakin tinggi temperatur dan konsentrasi maka %recovery aluminium akan semakin besar seiring dengan bertambahnya waktu. Kesimpulan penelitian ini bahwa LPL PDAM Banjarmasin memiliki kandungan Al2O3 yang cukup tinggi (18,5%). Dan hasil optimum yang dicapai adalah pada temperatur leaching 90oC, konsentrasi 2 M, dan waktu leaching 10 menit. ====================================================================================================== Waste Purification Sludge (WPS) is still pose a problem for the local water company (PDAM) because of a comparatively very much and has not been utilized to the fullest. WPS have a fairly large content of Al2O3 (18.5%), so it has the potential to do the recovery of aluminum. In this study used acidfication method for recovery of aluminum because this method has a higher efficient recovery and lower operating costs compared to other methods. The methodology in this research using acidification in the form of 32% HCl in order to extract aluminum from WPS taken from Water Treatment Plant System 1 (IPA 1) PDAM Bandarmasih Banjarmasin KAL-SEL. Stage of the process is divided into several stages, namely preparation phase of WPS PDAM Banjarmasin, phase characteristic analysis of WPS PDAM, phase agitated leaching process, and phase characteristic analysis of filtrate from agitated leaching process. In this study uses a series of tools agitated leaching, and several variables, namely the concentration of HCl solvent (0.5, 1, 1.5, 2 and 4 M), leaching temperature (30, 50, 70, and 90ᵒC), and leaching time (5, 10, 15, 20, 25, 30 , 40, 50, and 60 minutes). Results from this study showed that the optimum results are achieved at a temperature 90 °C, and the solvent concentration 2 M with aluminum recovery of 68.49% in the leaching time of 10 minutes. From the experiments it was found that the higher the temperature and concentration of HCl, the recovery of aluminum will be even greater with increasing time. The conclusion of this research that WPS PDAM Banjarmasin have a fairly high content of Al2O3 (18.5%). And the optimum results are achieved at a concentration of 2 M, leaching temperature 90 ° C, and the leaching time of 60 minutes.

Item Type: Thesis (Undergraduate)
Additional Information: RSK 660.284 2 Sai e
Uncontrolled Keywords: Agitated Leaching, Aluminium, HCl, dan LPL
Subjects: T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions.
Divisions: Faculty of Industrial Technology > Chemical Engineering > (S1) Undergraduate Theses
Depositing User: - Taufiq Rahmanu
Date Deposited: 04 Apr 2019 04:00
Last Modified: 04 Apr 2019 04:02
URI: http://repository.its.ac.id/id/eprint/62695

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