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Primary Metals

Complying with stringent discharge regulations with Krofta clarification

Removing oils and suspended solids in the Primary Metal Industry

The primary metals industry faces significant challenges in wastewater management, particularly when it comes to removing oils, suspended solids, and other contaminants. Krofta Dissolved Air Flotation (DAF) systems have emerged as a trusted solution, providing efficient separation and cost-effective treatment. With over a decade of proven performance, Krofta DAF technology has enabled companies to reduce oil volumes, cut hauling costs, and even reuse treated water within their processes.

Effective Oil Reduction and Cost Savings

One of the key advantages of Krofta DAF systems is their ability to remove oils from wastewater streams. By doing so, they help clients achieve compliance with discharge standards, whether the treated effluent is sent to an on-site treatment plant, a nearby publicly owned treatment works (POTW), or another downstream process. These systems not only ensure that the wastewater meets stringent regulatory requirements but also significantly lower the total oil volumes present.

This reduction in oil content translates into substantial cost savings. Companies experience decreased hauling and disposal expenses as the volume of waste requiring off-site treatment diminishes. Additionally, many facilities find opportunities to reuse the treated water phase. For instance, the water can serve as a first rinse in production processes or be repurposed elsewhere in the plant, further enhancing overall operational efficiency and sustainability.

Tailored Solutions Through Lab Treatability Studies

Each application in the primary metals industry presents unique challenges, making a one-size-fits-all approach impractical. Krofta recognizes this and begins the treatment planning process with comprehensive lab treatability studies. These preliminary tests help determine whether a Krofta DAF system is the right solution for a specific wastewater stream. They also guide the selection of the most effective chemical treatment protocols and flotation techniques.

In cases where a full-scale implementation is not immediately feasible, Krofta offers trial options such as side stream testing or pilot-scale trials. This phased approach ensures that clients gain valuable insights into the performance of a Krofta DAF system without committing to a full-scale installation upfront. The result is a customized, data-driven solution that meets the unique requirements of each facility, providing both immediate benefits and long-term value.


Check the Krofta Services section for more information on Krofta studies and Krofta DAF rental options.

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Need a Krofta DAF? We are looking forward to sharing insights on the most efficient solution for your liquid-solid separation challenge.