Effect of Electrolyte Composition on Nickel Removal Process from Artificial Electroplating Wastewater Using Two-Room Electrodeposition Cells
| Main Authors: | Janetasari, Selly Ayu, Djaenudin, Djaenudin |
|---|---|
| Other Authors: | Research Unit for Clean Technology - LIPI |
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University
, 2019
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| Subjects: | |
| Online Access: |
https://ejournal.undip.ac.id/index.php/ksa/article/view/23006 https://ejournal.undip.ac.id/index.php/ksa/article/view/23006/15572 |
Daftar Isi:
- Research of removal of soluble nickel from artificial electroplating wastewater has been investigated. The research aim to know optimum electrolit composition in nickel electrodeposition process. This study was conducted within a batch system using double chamber electrodeposition cell separated by water hyacinth leaf. Electrodeposition cell was equipped with a copper plate as cathode, graphite plate as anode, H2SO4 anolyte, NiSO4 catholyte with Na2SO4 added as supporting electrolyte. Electrodeposition performed at 5V direct current voltage for 4 hours each running and varied the concentration of H2SO4 anolyte (0,2 M; 0,6 M and 1 M), pHinitial catholyte (2; 4 and 6) and Na2SO4 (catholyte) supporting electrolyte (0 M; 0,2 M; 0,6 M and 1 M). The statistic analysis results showed that the concentration of 0.2 M H2SO4, pHinitial catholyte of 6 and 0.2 M Na2SO4 with an optimum concentration of nickel concentration values decrease of 18,433 % and nickel deposition on the cathode of 0.042 grams.
- Telah dilakukan penelitian untuk menurunkan konsentrasi nikel dari tiruan air limbah elektroplating. Penelitian ini bertujuan untuk mengetahui komposisi elektrolit optimum pada proses elektrodeposisi nikel. Penelitian dilakukan dengan sistem batch menggunakan sel elektrodeposisi dua ruang yang dipisahkan dengan daun eceng gondok. Sel elektrodeposisi dilengkapi dengan katoda pelat tembaga, anoda pelat grafit, anolit larutan H2SO4, katolit larutan NiSO4 ditambah elektrolit pendukung larutan Na2SO4. Elektrodeposisi dilakukan pada tegangan listrik searah sebesar 5V selama 1 jam setiap tempuhan dan dilakukan variasi konsentrasi anolit H2SO4 (0,2 M; 0,6 M dan 1 M), pHawal katolit (2; 4 dan 6) dan konsentrasi elektrolit pendukung Na2SO4 (0 M; 0,2 M; 0,6 M dan 1M) dalam katolit. Hasil analisis statistika menunjukkan bahwa konsentrasi H2SO4 0,2 M, pHawal katolit 6 dan tanpa elektrolit pendukung Na2SO4 0,2 M merupakan konsentrasi optimum dengan nilai penurunan konsentrasi nikel sebesar 18,433% dan deposit nikel pada katodasebesar 0,042 gram.