Hi 2 All! I would like to know is there is someone who can provide more information on the existing control strategies for thickeners/settling tanks. If neccessary a flocculant can be added. This aim is water conservation. I am working on a project on which some mines in my country wants to decrease the amount of water used/wasted. What needs to be done, as far as I know, is to get the underflow concentation as high as possible to still be able to pump the underflow "product". The less water it contains the easier the disposal, but the more difficult the pumping. Please give guidelines/comments.