PEMULIHAN TEMBAGA LARUT SECARA ELEKTROLISIS PADA LIMBAH LARUTAN TEMBAGA-NITRAT PENGRAJIN PEMURNIAN EMAS PERHIASAN DI KOTA MAKASAR
This research is aimed to recovery of copper that has been dissolved in the coppernitrate wastewater from gold jewelry purification, with a content concentration 5318.52 mg/l of Cu, which can be obtained pure copper powder of high economic value and can contribute to a decrease in weight metal conte...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2011
|
| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/39017/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=50191 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Universitas Gadjah Mada |
| Summary: | This research is aimed to recovery of copper that has been dissolved in the coppernitrate
wastewater from gold jewelry purification, with a content concentration
5318.52 mg/l of Cu, which can be obtained pure copper powder of high economic
value and can contribute to a decrease in weight metal content copper on the
wastewater before discharge to urban drainage. The method used is the recovery
process by electrolysis or electrowinning process that using cell liberation, which
uses a single pair of stainless steel electrode with copper (SS-Cu), a single pair of
graphite electrodes with copper (G-Cu), alsomulti pairs stainless steel electrode
with copper (MSS-Cu). Single-electrode pair was examined by varying the voltage
and current values at time variation of process, while for many electrode pairs by
varying the process time at constant voltage and current values. The recoverable
amount of copper was measured by weighing the mass changes at the cathode and
the copper content test of the solution using Atomic Absorption Flame Emission
Spectrophotometer. Laboratory test results show the decreasing maximum content
for each pair, respectively 66.60% for the SS-Cu, 49.38% for the G-Cu, and 78.94%
for the MSS-Cu. With reference to the effectiveness of multi-electrode cell
liberation, there are business opportunities for wastewater treatment that can
accompany the businessof gold jewelrypurification. |
|---|