21. For these settling rates, the retention time in the clarifier is low, at around 20 minutes or less, 22. However, this design is less effective in achieving a high centrate quality, which makes it a poor clarifier . 23. The layout of the clarifier creates extra turbulence as the water turns a corner from the feed to the inclined plates. 24. Another design variation, which improves the efficiency of the separation unit is the way the effluent enters the lamella clarifier . 25. These measurements allow engineers to adjust the flow rate of return sludge from the secondary clarifier into the secondary treatment reactor. 26. He perceives the meaning of that which seems obscure to others; therefore he is an interpreter and clarifier of eternal truth. 27. Solid particles begin to settle on the plates and begin to accumulate in collection hoppers at the bottom of the clarifier unit. 28. Typically, a trickling filter is followed by a clarifier or sedimentation tank for the separation and removal of the sloughed film. 29. Sources of viable bacterial seed can be primary clarifier effluent, non-disinfected secondary clarifier effluent or a commercial seed preparation. 30. Sources of viable bacterial seed can be primary clarifier effluent, non-disinfected secondary clarifier effluent or a commercial seed preparation.
