A Guide to Water Treatment
Water treatment is the process of removing contaminants and undesirable components in water making it more acceptable to be used for different purposes, for example, drinking, irrigation, and river flow maintenance. Treatment of drinking water involves a series processes that are aimed at the removal of particles that may lead to contamination and cause short and long term risks. The first process in water treatment is called screening, fixed screens are used to remove large particles from the raw mater. For larger volumes water treatment plants course screens are usually with automatic cleaning devices. Intermediate screens are fitted with water cleaning jets which wash away any debris remaining after getting out of the course screens.
After screening the raw water enters the sedimentation tank where smaller sized particles which pass the screens are removed. Water then goes to the coagulation tank where the surface of the particles are modified by adding chemicals and ions of opposite charges to prevent some repulsive forces that are present. Water is taken to a filtration chamber to remove some of the particles from water by passing it through a sand bed that is designed to allow reusing, the chamber also consists of several filters for example the slow rate, pressure and high rate sand filter. Because of all this processes, water treatment therefore has many advantages that make it useful to people and every organism in a farm. Water that is treated is very important for a person’s health because many cases of diseases are associated with drinking of untreated water. Treated water is good for appliances in a farm because water that is softened keeps many appliances efficient which will also help in saving money. Clean water is of good importance to someone’s health because it is free from disease causing organisms that may cause deaths. Since there is presence of metals in water, treatment is very important to remove them because some may cause health hazards, for example, lead and copper are dangerous to health hence chemicals, and filtration systems are used to remove them in order to prevent risks. Dissolved gases and and unpleasant tastes are usually removed when water undergoes the process of treatment this makes it better and efficient to be used by people for drinking purposes. Water that is soft due to treatment allows detergents to rinse completely because fabrics are softer without hard water minerals trapped in them, it also allows a person to save on the amount of soap he or she uses.