ENV-05-179 Source Minimization Techniques and Concepts for Refineries

Description:

Process wastewater, sour water, spent caustic, and non-oily wastewaters are the most significant contributors to the refining industry wastewater treatment system. These sources, combined with contributions of solids and other contaminants, dictate the size, operation, and performance of a refinery’s wastewater treatment system. These systems are often forced to handle flows and contaminant loadings that approach or exceed the original design intents, thus leading to inefficiencies and possible discharge violations. Many refineries have implemented source minimization projects in the past, however as time goes by practices and awareness of source minimization techniques fades. In addition, refinery units may be added or revamped leading to further erosion of source minimization practices. These factors contribute to increased flows and contaminant loadings to the treatment system. In addition, many refineries face limitations of the quantity of water that can be drawn from various sources and need to make optimal use of existing resources becomes paramount. The focus of this paper to provide an overview of source minimization techniques and concepts for refineries and includes a discussion of source minimization concepts, benchmarking data, minimization techniques, and benefits of source minimization.