#TITLE_ALTERNATIVE#

• Main Author: Marta (NIM : 153 03 052), Donal
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/5988
• Institution: Institut Teknologi Bandung

abstract: <br /> <br /> <br /> <br /> <br /> The development advance technology will be result two major problem for environmental conservation. The first problem is environmental pollution by waste. <br /> <br /> <br /> <br /> <br /> The second problem is industry raw material decrease. In the electronic waste there are some material which possibly to be recycled. The alternative implementation <br /> <br /> <br /> <br /> <br /> method to earn metals from waste water it self is electrolysis. The efficiency of electrolysis reactor in separating silver is depending on current and operation time. Current production is depending on electric voltage, and electrode distance. Electrolysis reactor with volume 420 ml was used to process film fixer waste water with silver concentration approximately 7.344 mg/L. The electrodes pair that will be used are zinc plate- stainless steel and stainless steel-stainless steel. Reactor runs by combination of voltage, times, and electrode distance. Electrode trial to find the best <br /> <br /> <br /> <br /> <br /> electrodes shows that electrode couple of zinc-stainless steel separated silver concentration up until 52%. On the combination of voltage and time, Mostly, the bigger efficiency were gotten on the voltage range 3 up to5 volt and time range at 30 up to 60 minutes with efficiency are 74 % up to 92 %. On The combination of electrode distance and time, the sufficient efficiency are gotten on 2 and 4 cm of electrode distance with efficiency about 74% up to 88%. This result proved that there were influences of voltage, operation time and electrode distance to the silver separation efficiency.