APLICATION OF ELECTROCOAGULATION METHOD TO REDUCE HYPOCHLORITE IONS LEVELS IN THE WATER POOL WITH ALUMINUM-GRAPHITE ELECTRODE

Abstract

Abstract
This study aims to determine the optimum potential and optimum time of elektrocoagulation
process, with aluminum and graphite electrodes to reduce hypochlorite ions form the water pool and
determine the concentration of hypochlorite ions before and after electrocoagulation process. The
subject of this research was optimum electric potential and optimum time of electrocoagulation
efficiency against hypochlorite reduction. The Object of this research was hypochlorite ions in pool
water Hercules Maguwoharjo Yogyakarta. The Optimization of the electrical voltage was done on
variation 4, 6, 8, 10, and 12 volts and optimization of the time electrocoagulation process was done
on variations 2, 4, 6, and 8 hours. Parameters used are concentration of hypochlorite ions in the
water. The Effectiveness of electrocoagulation was seen from the graph of changes in the
concentration of hypochlorite ions after electrocoagulation process. The determination of
hypochlorite content was using uv-vis spectrophotometry with wavelength 556 nm. The results
showed that the highest electric potential is 12 volt and the longest time of electrocoagulation process
is 8 hours. The Use of electrocoagulation method for pool water treatment effectively decreases the
consentration of hypochlorite ions.
Keywords : elektrocoagulation, hypochlorite, aluminum, graphite.