Control of Oil Contamination in Aqueous Cleaning Equipment using the TOC-5000A

Introduction

Industrial machinery parts, after cutting, are cleaned in aqueous cleaning equipment to remove any oily residues, and among cleaning devices, aqueous cleaning equipment is generally regarded to be the least problematic both from environmental and safety standpoints. The functionality of cleaning devices is diminished when contaminated by oils, so periodic addition or full replacement of detergents are carried out to preserve full functionality. In order to reduce running costs and to limit the amount of the detergent-added effluent, which requires troublesome disposal processes, it is necessary to achieve the proper concentration of detergent in the washing vessel. For these reasons a quantitative control on detergent concentration is required. Here we introduce an example of using the TOC analyzer to control the operation of such cleaning device.

November 1, 2001 GMT