October 20, 2003 – Oki Electric Industry Co. has developed a new way to process organic waste liquids left over from chipmaking operations, according to the Nihon Keizai Shimbun.
The company uses microorganisms in a bioreactor to decompose 90% of its waste liquids, such as DMSO and isopropyl alcohol used to wash and clean wafers. The new method separates the liquids according to the microorganisms that most efficiently break them down.
The result is a 50% increase in process efficiencies, which will allow Oki to do nearly all of its waste liquid elimination in-house rather than outsource the operation, saving the firm ¥35 million per year.
Oki plans to market the new system through an environmental engineering subsidiary.