INNOVATIVE WATER & WASTEWATER TREATMENT

Heron Innovators, Inc. manufactures Suspended Air® Flotation (SAF®) water treatment systems. SAF® is flotation without dissolved air®. Performance is not limited by changing conditions (e.g. gas solubility, pressure, temperature, etc.) and the physics that constrain traditional process systems, such as dissolved air flotation (DAF), induced air flotation (IAF), Induced Gas Flotation (IGF), enhanced clarification, cavitation air flotation (CAF), and other micro-bubble generators. As Heron customers say, “It just always works.”

Common Uses For SAF®:

  • Algae and Silt Removal
  • Biosolids Removal & Thickening
  • Enhanced Clarification
  • Filtrate Clarification
  • Oil/Water Separation
  • Primary/Secondary Treatment
  • Surface Water Treatment
  • Wastewater Reclamation

Municipal Applications

Industrial Applications

SAF® Conversions

Partners We

Enhanced Algae Removal

Reliable High-Quality Effluent Across Diverse Algal Profiles with the SAF® System The Suspended Air® Flotation (SAF®) system is an advanced solution for achieving low-turbidity effluent, consistently delivering levels below 1 NTU across various algal profiles and...

ClearMixer™

SAF® microbubble froth is injected and stirred into the influent stream prior to entering the flotation cell. Most of the...

Flotation Without Dissolved Air®: Charged microbubbles for enhanced removal of suspended solids in wastewater applications.

For over a century, various forms of Dissolved Air Flotation (DAF) systems have been employed for the removal of suspended solids, and fats, oils, and grease from wastewater. The amount of air that can be dissolved in DAF systems is limited by the laws of physics and...
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𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐢𝐧𝐠 𝐖𝐀𝐒 𝐏𝐫𝐨𝐜𝐞𝐬𝐬𝐢𝐧𝐠: 𝐓𝐡𝐞 𝐒𝐀𝐅® 𝐀𝐝𝐯𝐚𝐧𝐭𝐚𝐠𝐞 𝐢𝐧 𝐓𝐡𝐢𝐜𝐤𝐞𝐧𝐢𝐧𝐠 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲
The thickening of WAS, discussed in this paper, is a relatively new application for the SAF® technology. The performance of the SAF® process for the thickening of WAS has been evaluated at several facilities where the process was installed as a replacement for existing DAF units that have exceeded their design life or not meeting performance expectations. The SAF® units have proven to be effective for thickening both stored and fresh WAS, adapt to a wide range of WAS concentrations and flowrates, and improve the operation of downstream digesters. Switching from legacy DAF to SAF® resulted in stabilization of the digestion process, which previously experienced upset conditions and foaming due to poor WAS thickening. The fact that the bubbles do not coalesce during the flotation reaction is a key reason that the SAF® process is effective. The bubbles remain in suspension for an extended period, resulting in a greater number of adsorption sites and creating more opportunities for particle adsorption and flotation. The advantages for the SAF® process that have been documented by others (Zeller, 2023; Bauer, 2024; Krauss, 2024) include rapid startup, variable load processing, reduced operating time, and reduced energy requirements, as compared to the conventional DAF process.

Alternative configurations for secondary sludge wasting: (a) from aeration tank and (b) from secondary clarifier. Note that the primary clarifier may not be present in some cases. Adapted from Tchobanoglous et al., 2014.

Read more: heroninnovators.com/thickening-activated-sludge-with-suspended-air-flotation-saf
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𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐢𝐧𝐠 𝐖𝐀𝐒 𝐏𝐫𝐨𝐜𝐞𝐬𝐬𝐢𝐧𝐠: 𝐓𝐡𝐞 𝐒𝐀𝐅® 𝐀𝐝𝐯𝐚𝐧𝐭𝐚𝐠𝐞 𝐢𝐧 𝐓𝐡𝐢𝐜𝐤𝐞𝐧𝐢𝐧𝐠 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲
The thickening of WAS, discussed in this paper, is a relatively new application for the SAF® technology. The performance of the SAF® process for the thickening of WAS has been evaluated at several facilities where the process was installed as a replacement for existing DAF units that have exceeded their design life or not meeting performance expectations. The SAF® units have proven to be effective for thickening both stored and fresh WAS, adapt to a wide range of WAS concentrations and flowrates, and improve the operation of downstream digesters. Switching from legacy DAF to SAF® resulted in stabilization of the digestion process, which previously experienced upset conditions and foaming due to poor WAS thickening. The fact that the bubbles do not coalesce during the flotation reaction is a key reason that the SAF® process is effective. The bubbles remain in suspension for an extended period, resulting in a greater number of adsorption sites and creating more opportunities for particle adsorption and flotation. The advantages for the SAF® process that have been documented by others (Zeller, 2023; Bauer, 2024; Krauss, 2024) include rapid startup, variable load processing, reduced operating time, and reduced energy requirements, as compared to the conventional DAF process.

Alternative configurations for secondary sludge wasting: (a) from aeration tank and (b) from secondary clarifier. Note that the primary clarifier may not be present in some cases. Adapted from Tchobanoglous et al., 2014.

Read more: https://heroninnovators.com/thickening-activated-sludge-with-suspended-air-flotation-safImage attachment

We’re grateful for the family we’ve built together – our clients, suppliers, and our team. Wishing you and your loved ones a Thanksgiving filled with joy, gratitude, and togetherness.

Happy Thanksgiving from Heron Innovators
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We’re grateful for the family we’ve built together – our clients, suppliers, and our team. Wishing you and your loved ones a Thanksgiving filled with joy, gratitude, and togetherness.

Happy Thanksgiving from Heron Innovators
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