Recovery Nikel Dari Baterai Ni-Cd Bekas Dengan Proses Leaching: Review

Manik, Tetty (2020) Recovery Nikel Dari Baterai Ni-Cd Bekas Dengan Proses Leaching: Review. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Baterai Ni-Cd (nickel-cadmium) merupakan salah satu jenis baterai isi ulang yang banyak digunakan dalam aplikasi elektronik portable. Dengan meningkatnya produksi baterai Ni-Cd juga menyebabkan meningkatnya baterai Ni-Cd bekas yang sudah habis pakai. Baterai Ni-Cd bekas mengandung logam nikel dan kadmium yang sangat berbahaya bagi lingkungan. Di sisi lain, logam yang terdapat pada baterai Ni-Cd bekas merupakan logam berharga yang dapat digunakan kembali dan memiliki nilai ekonomi yang tinggi terutama nikel. Oleh karena itu, sangat penting dilakukan pengolahan baterai Ni-Cd bekas untuk mengatasi permasalahan lingkungan dan untuk memperoleh kembali logam berharga seperti nikel. Pada umumnya terdapat dua proses utama yang digunakan untuk mendaur ulang baterai Ni-Cd yaitu secara pirometalurgi dan hidrometalurgi. Sebagai alternatif, proses pengolahan secara hidrometalurgi dengan menggunakan leaching telah di teliti dan dikembangkan beberapa negara karena lebih efisien dan tidak memerlukan energi yang besar. Pada proses leaching ini terdapat beberapa faktor utama yang mempengaruhi diantaranya temperatur, konsentrasi asam, dan waktu. Hasil dari proses leaching akan disaring, kemudian filtrat dan residu akan dipisahkan dan dilakukan karakterisasi untuk mengetahui komposisi kimia logam yang terdapat pada residu. Review ini akan meninjau bagaimana pengaruh temperatur, konsentrasi asam, dan waktu pada proses leaching baterai Ni-Cd bekas terhadap pemulihan logam nikel. ============================================================================================================ Ni-Cd (nickel-cadmium) batteries are one type of rechargeable batteries which are widely used in portable electronic applications. The increased production of Ni-Cd batteries also causes an increase in the spent Ni-Cd batteries that are discharged. Spent Ni-Cd batteries contain nickel and cadmium metals that are very dangerous for the environment. On the other hand, the metals contained in spent Ni-Cd batteries are valuable metals that can be reused and have a high economic value, especially nickel. Therefore, it is very important to process spent Ni-Cd batteries to overcome environmental problems and to recover precious metals such as nickel. In general, there are two main processes used to recycle Ni-Cd batteries, namely pyrometallurgy and hydrometallurgy. As an alternative, hydrometallurgical processing using leaching has been researched and developed in several countries because it is more efficient and does not require large energy. In the leaching process, there are several main factors that affect including temperature, acid concentration, and time. The results of the leaching process will be filtered, then the filtrate and residue will be separated and characterized to determine the chemical composition of the metal in the residue. This review will examine how the effect of temperature, acid concentration, and time in the leaching process of spent Ni-Cd batteries on nickel metal recovery.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Spent Ni-Cd batteries, Recovery of nickel, Hydrometallurgy, Leaching, Baterai Ni-Cd bekas, Recovery nikel, Hidrometalurgi, Leaching
Subjects: T Technology > TN Mining engineering. Metallurgy > TN688 Hydrometallurgy
T Technology > TN Mining engineering. Metallurgy > TN799.N6 Nickel--Metallurgy
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Tetty Manik
Date Deposited: 11 Aug 2020 04:00
Last Modified: 11 Aug 2020 04:00
URI: https://repository.its.ac.id/id/eprint/77497

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