Suppose that we improve the quality of our distributed water (softening, UF, etc.). Shall we lose part of this improvements due to the distribution network state (scaling, biofilm)?. Some experiences?
Posted by Manuel Roldan on 13 Apr 2012 at 15:18
Special Projects Department Head
We supply drinking water to 1.8 million people. Our raw water is (historically) hard and sulfated. We are about to build a pilot plant in order to test different treatments (UF + RO, PRO + chemical precipitation + SRO, Pellet softening + UF + RO, etc.). We will try to simultaneously achieve a high quality water and a tractable reject stream (in quality and quantity). But our distribution network is, in some parts, about one century old; we expect to find scaling and biofilm. Some ideas about how can this lower the quality we want to improve?
We will include a special module in the pilot plant, where we will be able to recirculate treated water along some pipes taken from the real network and check some lab indicators.