WATER PURIFICATION SYSTEM

WATER PURIFICATION SYSTEM

  Water purification is the process of removing the chemicals,biological  contaminants,suspended solids and gases from waste water.Water is purified for humans for drinking purposes and other process including medical,pharmacological,chemical and industrialusage. The various methods used for purification includes physical processes like filtration,sedimentation and distillation.In biological processes,slow and filters or biologically active carbon,chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light.This purification process may reduce the hazardous for health like bacteria,algae,fungi,viruses,parasites.

             The water has various types including ultrapure water(Laboratory and medical grade water),waste water,process water.The ultrapure water has specific methods such as degasification,Ultraviolet disinfection,Ultraviolet ion Destruction and decarbonation involves in removal of carbon-di-oxide from water for high purity water treatment. The process water to satisfy a variety of manufacturing needs,such as rinsing,plating,spraying,coating,cooling and washing.The waste water is required to meet discharge requirements for dissolved contaminants(oil and greases,heavy metals,colors,biological oxygen demand(BOD),Chemical oxygen demand(COD) before disposed into municipal stream.

           There are standard setting organisations among pure water specifications and they look in different parameters such as silica,TOC,bacterial plate count,endotoxin,resistivity and others.Typical standards include USP – The highest purity or quality of water carry a USP designation can vary from the lowest purity specification.CLSI – Clinical and laboratory standards institute for preparation and testing of reagent grade water used in laboratories clinically.The categories of purity include CLRW(Clinical laboratory reagent water),SRW(Special reagent water),Instrument and feed water,autoclave and wash water,water supplied by a method manufacturer,commercially bottled purified water.ASTM(American society for testing and materials) – standards typically apply more to non clinical laboratory settings.CAP – College of American Pathologists organization standards for validation and operation of lab equipments.