Bioremediation of Heavy Metal Chrome with Saccharomyces cerevisiae in Industrial Metal Plating Liquid Waste

摘要

The metal plating industry realistically and continually produce liquid waste in a number of relatively small but highly toxic. This waste disposal will poison the surrounding environment as well as biotic/abiotic component, if the waste directly disposed of into the environment without being processed first. The purpose of this research is to process liquid waste from the metal-plating industry containing Chrome heavy metals using bioremidiation with spesific microbes. Research was conducted by bioremidiation using Saccharomyces cerevisiae microbes with concentration variation of 10~(2.5) and 10~5 and curing time for 48 hours. The results showed that the initial levels of Chromium metal plating liquid waste before processing was 1.35 ppm. Metal plating liquid waste processing in Saccharomyces cerevisiae microbes with bioremidiation can lower the levels of Chrome to 0.297 ppm with a percentage decrease level of 78.03%. The bioremidiation process with concentration of 10~5 Saccharomyces cerevisiae can decrease Chrome levels significantly.