Ogechukwu (Oge) Anyene, Isha Chaknalwar, Josiah Hinterberger, Ziwei (Vanessa) Qi
Abstract
The High Rate Sedimentation - Floc Blanket team built a sedimentation tank model with the goal of increasing the upflow velocity and decreasing the plan view area, without degrading the performance of the floc blanket inside the tank reactor. Under high turbidity conditions, a stable floc blanket was maintained under upflow velocities from 1-4 mm/s. Two method of encouraging floc re-circulation, viz., in-reactor lamella plates and sludge recycling, were tested to observe effects on effluent turbidity. Results indicated that neither method had a strong enough effect to fully recommend increased upflow velocity, but future testing in improved apparatus with low turbidity influent has potential.
