Pengambilan Logam Cr6+ Dan Cr Total Dari Limbah Industri Elektroplating Secara Elektrokogulasi

-Electroplating industry is a metal coating industry by way of metal precipitate coatings on metal or plastic which is done so that the electrolytic waste containing heavy metals. Electrocoagulation is a process of merging clumps resulting from the flux of electrical current (DC) for the extraction of metal compounds contained in wastewater. In this process of reduction and oxidation reactions occur. Where the metal is reduced and the positive electrode (Al) will be oxidized to (Al (OH) 3) which serves as a coagulant. The purpose of this research to study methods of electrocoagulation using aluminum electrodes and the influence of the length of time stirring and stirring speed of decision-CR6+ levels and total Cr. This electrocoagulation electroplating wastewater with electricity so that the ions are absorbed by the coagulant in waste binder in the release of the electrode and causes the bond between the metal ions with coagulant. Variation of stirrer speed of 200, 400 and 600 rpm, whereas the long stirring time 25, 50 and 75 minutes. Based on test results, after an analysis showed a significant reduction of the levels of total CR6 + and Cr in the electroplating wastes. CR6+ to obtain a decrease of 95.1% at minute 50 and the stirrer speed of 200 rpm, whereas the total Cr obtained a decrease of 82.69% at minute 75 and a stirrer speed of 600 rpm

Impacts and Problems of Early Marriage During the Covid-19 Pandemic

The aim of this research is to explain the factor and the impact of young married people. In this COVID-19 pandemic, there are so many Indonesian teenagers doing married in the young age. Factors that influence the increase of this issue is becaused of exonomy, religion, and promiscuity. People who do this thing must ready to face all of problem and impact that will happen because everything getting worse in this pandemic Covid-19 actually in economic