PeCOD – Petrochemical Industry - Case Study


Courtesy of MANTECH Inc.

Optimizing process efficiency for petrochemical wastewater monitoring is a key step in achieving sustainable energy. Care must be taken to properly monitor and treat wastewater generated from petroleum refineries to ensure contaminants are not released into the surrounding environment. Fast, safe, and reliable detection technology is therefore highly sought after and enables plant operators to make informed decisions regarding wastewater organic load and discharge limits.

Chemical oxygen demand (COD) is a common parameter used for assessing organic contamination of wastewater. The following case study describes the application of the PeCOD* COD Analyzer for use in the oil and gas industry with widely varying samples. The intention of this study was to evaluate a variety of products in their ability to treat wastewater. The PeCOD® method for COD analysis is well suited for use in the petrochemical industry as it fulfills the need for both a rapid and environmentally friendly monitoring tool, providing real-time results important for process monitoring and control. In addition, rapid COD monitoring offers the operational feedback necessary for optimizing production practices and cleaning processes, often leading to a reduction in raw material consumption and discharge costs. The sample matrix discussed below consists of petrochemical effluent wastewater at a neutral pH, free from large, solid particulates. Samples were mixed in a 1:1 ratio with GREEN range PeCOD® electrolyte solution. Soluble COD was analyzed by the PeCOD® COD method and compared with dichromate COD (CODCr) results. Samples prepared for dichromate COD analysis were unfiltered and represent total COD values.

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