TFC Improves Accuracy and Reduces Costs Using Wireless Guided Wave Radar for Pollution Control APPLICATION Level measurement in underground concrete pit CUSTOMER Toray Fine Chemicals, Chiba, Japan CHALLENGE Toray Fine Chemicals (TFC) in Chiba is the only plant to produce DMSO (dimethyl sulfoxide) and polysulfide polymer in Japan. The facility uses four partially buried concrete pits for the wastewater treatment process. Wastewater is discharged from each manufacturing process into the pits. It is then biologically treated and discharged to the public water area. The intermediate treatment liquid remains in the pits. Since the contents are waste liquid, leakage from the underground pits can contaminate groundwater and soil. It is difficult to detect leakage from the bottom of the

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