Abstract

AbstractIndustrial wastewater containing high concentrations of salt can be treated in biological treatment systems. However, the high salt contents tend to add to the cost and sensitivity of the treatment system. Wastewater containing high concentrations of salt can be handled in the following types of treatment systems: Conventional activated sludge systems can handle up to 5% salt. Anaerobic systems can handle up to 1.5% salt. Specialized systems, such as fluid bed/SBR/Zeno‐Gem®, can handle up to 10% salt. Special bacteria can be used for treatment of wastewater containing up to 15% salt. This paper discusses three wastewater treatment projects that involved wastewater with high concentrations of salt, up to 10% salt. This paper also summarizes the information collected from literature searches conducted as part of the projects.

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