Krofta’s Dissolved Air Flotation (DAF) technology is widely utilized in the oil and gas sector. Our systems support water treatment processes across both upstream and downstream operations, ensuring high performance in challenging environments.

In upstream oil and gas operations, water management is a critical concern. During production, water is often extracted along with oil and gas, resulting in streams commonly referred to as produced water. These streams contain a mixture of oil, solids, chemicals, and dissolved contaminants that must be treated before reuse, reinjection, or discharge.

Krofta’s Dissolved Air Flotation (DAF) systems excel in this context by delivering high-efficiency separation of oil from water. After primary oil separation, Krofta DAF units are employed to remove smaller oil droplets, suspended solids, and other residual contaminants.

The ability of Krofta DAF systems to achieve turbidity levels as low as 4–6 NTU makes them ideal for polishing water to meet stringent regulatory standards or enhance the performance of subsequent treatment stages.

Moreover, Krofta DAF systems have proven to be robust and forgiving even when dealing with fluctuating feedwater quality. This is particularly valuable in upstream applications, where the composition of produced water can vary significantly depending on the reservoir characteristics, production techniques, and chemical additives used.

By providing consistent, high-quality treatment results, Krofta DAF units ensure a more stable and predictable water management process, which is essential for efficient production and environmental compliance.

In downstream operations, refineries and petrochemical plants generate complex wastewater streams that require advanced treatment before discharge or reuse. Krofta DAF systems serve multiple purposes in these facilities, ranging from pretreatment steps to final polishing stages.

As a pretreatment solution, Krofta DAF units are used to reduce the load on biological treatment systems by removing solids, free oils, and colloidal oils from refinery effluents. This is critical because excessive solids or oil can disrupt biological processes, reduce treatment efficiency, and lead to higher operating costs.

By integrating Krofta DAF units upstream of biological reactors, refineries can improve overall process stability, enhance the effectiveness of biological treatment, and reduce the frequency of maintenance or downtime.

Additionally, Krofta DAF systems are employed to replace or complement Induced Gas Flotation (IGF) units, thickening the solids they produce or serving as a more efficient alternative. When paired with appropriate chemical agents, Krofta DAF units also play a role in reducing targeted metals in refinery wastewater. This is increasingly important as environmental regulations become more stringent, requiring refiners to lower metal concentrations in their effluents.

By using Krofta DAF systems in downstream operations, refineries can achieve cleaner effluents, lower overall treatment costs, and improved compliance with environmental standards. These systems offer a flexible, reliable, and cost-effective approach to managing the complex wastewater streams associated with refining and petrochemical processes.

• Efficiency and Reliability:
  Krofta DAF systems provide consistent performance, even under fluctuating water quality conditions, ensuring robust and reliable water treatment results.
  
• Versatility in Metal Removal:
  When coupled with metal scavengers, these systems can significantly reduce targeted metals in refinery waste streams, improving overall compliance and environmental performance.

With proven effectiveness in both upstream and downstream applications, Krofta DAF systems provide reliable, high-quality treatment solutions, making them an essential tool for operators striving for operational excellence and environmental compliance.

Contact us today to learn how Krofta DAF technology can optimize your industry processes.