Online effluent monitoring helps automotive plant stay in complianceProblem: An automotive plant in Ohio needed to treat wastewater for COD removal. Under new regulations, the sequential batch reactor system needed real-time performance data to comply with a new COD discharge limit.Solution: AppliTek proposed an AppliCOD online monitor, using a titrimetric method for COD measurement. Three months of side-by-side comparison of data from the lab and AppliCOD system showed that the AppliCOD data was about 12 to 18 percent higher than the standard method. The AppliCOD system was mapped for 0 to 1,200 ppm COD with a 4-20mA scale. The high
