Ballasted Flocculation for Wastewater Settling

The patent introduces ballast material as an intermediary substance that mediates between the biological solids and the settling process. The ballast attaches to biological solids to form heavier ballasted flocs that settle much more rapidly and efficiently, dramatically reducing the required settling area while maintaining high treatment rates. The ballast acts as a mediator that transforms the settling mechanism from conventional biological solids separation to enhanced ballasted floc separation.

The patent changes the physical parameters of the settling process by introducing ballast material with specific density and size characteristics. This modification alters the settling velocity and density distribution of the suspended solids, enabling rapid settling within a compact footprint. The parameter changes include increased particle density through ballast attachment and modified floc formation characteristics, which collectively reduce the required settling area.

The patent applies multi-functionality by designing the ballasted flocculation system to perform multiple functions within a single integrated unit. The reactor simultaneously accomplishes biological treatment, floc formation, ballast attachment, and solid settlement separation. This universal design eliminates the need for separate treatment stages and reduces overall system complexity despite the advanced settling mechanism.

The patent merges the biological treatment process with the ballasted flocculation and settling processes into a single integrated reactor system. By combining these functions in one unit, the patent reduces the number of separate equipment components and simplifies the overall system architecture, offsetting the complexity introduced by the ballasted flocculation mechanism itself.