SIMULATING THE EFFECT OF BLANKET CHARACTERISTICS ON THE FLOC BLANKET CLARIFICATION PROCESS

Previous attempts at simulating the flee blanket clarification process have failed to predict adequately the performance of 'real' tanks on water treatment works over a range of treatment conditions. In this pa per, a mathematical model of the flee blanket clarification process is presented. This model has been used to simulate the performance of a flat-bottomed clarifier operating on a full-scale water treatment work s. The model predictions have been compared with data obtained from th e treatment works, and the model has been shown to perform well. The m odel has then been used to simulate the effects of changes in the oper ating conditions of the clarifier on the concentration of the blanket in the clarifier and the quality of the treated water. The importance and potential uses of a model of the process at a treatment works are discussed. (C) 1997 IAWQ. Published by Elsevier Science Ltd.