Seeking help regarding the sedimentation mechanism of micro-vortices

Mechanism of micro-vortex sedimentation: In production, the vortex coagulation and low-pulse sedimentation water treatment technology is employed, with corresponding equipment including tubular micro-vortex mixers, small-hole grids, and inclined plate sedimentation units with short spacing. The mixing process is achieved using tubular micro-vortex mixers; by generating micro-vortices, the centrifugal inertial effect of these vortices is utilized to facilitate particle migration within multiphase systems, overcome sub-microscopic mass transfer resistance, increase the sub-microscopic mass transfer rate, and promote such mass transfer. This device enables the water flow to generate micro-vortices with a high proportion and high intensity, reducing sub-microscopic mass transfer resistance and enhancing momentum and mass transfer; the improved sub-microscopic mass transfer leads to the destabilization of colloids, resulting in a tendency toward coagulation and aggregation. After a certain shear stress gradient is established in the small-pore grid and the flow space of the reaction tank, it ensures that the destabilized colloids collide, coalesce, and grow. Meanwhile, the shear stress generated by the grid helps maintain a certain degree of compactness and shear strength in the floc. The particles that enter the sedimentation tank having a specific size and compactness provide an effective guarantee for efficient removal of turbidity. The closely spaced inclined plates suppress pulsation disturbances during floc sedimentation, while ensuring that the sedimentation area is equal to the sludge discharge area, thus preventing sludge accumulation in the absence of lateral constraints. A smaller spacing can maintain a high removal rate of floc. The increased resistance between the slanted plates at small spacings leads to more uniform water distribution and prevents short-circuiting. Its unique sludge discharge characteristics ensure optimal operation of shallow tanks, thereby enhancing the plant’s ability to withstand shock loads. Key technical points: ① The vortex coagulation and low-pulse sedimentation water treatment technology is effective for treating water with low temperatures, high turbidity, and high alkalinity. This technique reveals the dynamic cause of mass transfer collisions in multiphase systems—the inertial effect. 　　②　In water treatment under conditions of low temperature, high turbidity, and high alkalinity, sub-microscopic mass transfer and diffusion are key to mixing. By generating a high proportion of strong micro-vortices, the centrifugal inertial effect of these micro-vortices ensures that chemicals can immediately reach the finer parts of the water body, enabling the destabilization of colloids to occur instantly and thoroughly. 　　③　Proper and effective dynamic control of the water flow within the reaction tank can increase the degree of particle collision and coagulation per unit time; even under the influence of high alkalinity, coagulants can be utilized effectively, thereby avoiding waste of chemicals. 　　④　The arrangement of the grid serves three purposes: first, it creates micro-vortices that facilitate particle collision and agglomeration; second, it uses the shear force generated by the flow through the grid to maintain a certain degree of compaction in the flocs; third, it provides the hydraulic conditions necessary for the re-aggregation of floccules that have broken apart during flow. A reasonable grid layout can mitigate the effects of low temperatures and high turbidity. 　　⑤　The closely spaced inclined plates provide favorable hydraulic conditions for the settlement of flocs, which is particularly important when the maximum settling velocity of particles decreases during low-temperature periods. At the same time, the material, support, and angle of the inclined plate ensure the rapid and thorough removal of sediment, thereby maintaining effective sedimentation during periods of high turbidity, and it possesses strong resistance to impact loads. :handshake :P