Filtration: A slow sand filter, pressurized rapid sand filter, or pre-coat filter is the next step in treatment to filter out as many of the blue-green algae cells as possible before the water enters the disinfection system. ï Pressured rapid sand filters are the most common filters used for drinking water ponds.
Reactive urothelial cells and severe, mostly chronic inflammation. -- Urothelial cells, a type of epithelial cell found only in the urinary tract, line the urinary tract and they become reactive (changed) when injured by inflammation.
Leukocytes are a type of white blood cell. The presence of  leukocytes in the urine is likely to mean that there is a bacterial  infection, quite possibly a urinary tract in â¦ fection.eukocytes are a type of white blood cell. The presence of  leukocytes in the urine is likely to mean that there is a bacterial  infection, quite possibly a urinary tract in â¦ fection.