Prasetyo, Ari Budi and Prihantari, Marieta Sri (2017) Perlakuan Serbuk Kulit Pisang Kepok dengan NaOH untuk Adsorpsi Logam Cr(VI). Sarjana thesis, Universitas Brawijaya.
Abstract
Kromium heksavalen (Cr(VI)) merupakan salah satu sumber polusi yang terkandung dalam air limbah industri. Cr(VI) memiliki sifat toksik yang lebih tinggi dibandingkan Cr(III), serta dapat menimbulkan penyakit kronis seperti kanker kulit dan kanker saluran pernafasan. Salah satu metode yang dapat digunakan untuk mengurangi kandungan Cr(VI) dalam air adalah melalui proses adsorpsi menggunakan material berbahan dasar biomassa sebagai adsorben. Pada penelitian ini dilakukan proses adsorpsi untuk menyisihkan ion logam Cr(VI) menggunakan adsorben serbuk kulit pisang kepok yang diberi perlakuan menggunakan NaOH 0,1 N. Perlakuan tersebut bertujuan untuk meningkatkan kemampuan adsorpsi adsorben. Uji adsorpsi dilakukan untuk mengetahui pengaruh pH dan konsentrasi awal larutan Cr(VI) terhadap penyisihan ion logam Cr(VI), serta untuk mengetahui kapasitas adsorpsi adsorben serbuk kulit pisang kepok dalam mengadsorpsi ion Cr(VI) melalui pendekatan persamaan isotermal Langmuir dan Freundlich. Variasi pH yang digunakan adalah 2, 3, dan 4. Sedangkan variasi konsentrasi awal yang digunakan adalah 18,13; 35.15; 51,13 dan 70,96 ppm. Hasil penelitian menunjukan penyisihan Cr(VI) dipengaruhi oleh pH larutan dan konsentrasi awal Cr(VI) dalam larutan. Jumlah Cr(VI) terserap meningkat seiring turunnya nilai pH larutan dan meningkatnya konsentrasi awal Cr(VI). Kapasitas adsorpsi adsorben serbuk kulit pisang kepok adalah sebesar 4,0833 mg Cr(VI)/g adsorben.
English Abstract
Hexavalent chromium (Cr (VI)) is one from many polluting sources that can be found in industrial wastewater.Cr(VI) has higher toxic properties than Cr (III), which can lead to chronic diseases such as skin cancer and respiratory cancers. A method that can be used to reduce the Cr (VI) content is adsorption process using biomass based material as adsorbent. This study was conducted to determine Cr (VI) removal by adsorption process using banana peel powder activated with NaOH 0,1 N as adsorbent. The purpose of activation are to enhanced adsorption. The adsorption test was conducted to determine the effect of pH and the initial concentration of Cr (VI) solution on Cr (VI) removal, and also to determine the adsorption capacity of adsorbent to adsorp Cr (VI) based on Langmuir and Freundlich isothermal equations. The pH variations used were 2, 3, and 4. The initial concentration variations used were 18,13; 35,15; 51,13 and 70,96 ppm. The results showed that adsorption was affected by pH solution and initial concetration. Cr(VI) removal carried out better at lower pH and initial concentration. Cr (VI) adsorption capacity of kepok banana peels adsorben are 4.083 mg/g.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2017/875/051708718 |
| Uncontrolled Keywords: | Adsorpsi, Kapasitas Adsorpsi, Kromium Heksavalen, Kulit Pisang Kepok. |
| Subjects: | 500 Natural sciences and mathematics > 541 Physical chemistry > 541.3 Miscellaneous topics in physical chemistry > 541.33 Surface chemistry > 541.335 Adsorption |
| Divisions: | Fakultas Teknik > Teknik Kimia |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 25 Sep 2017 03:33 |
| Last Modified: | 09 Dec 2020 04:25 |
| URI: | http://repository.ub.ac.id/id/eprint/2888 |
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