Polluted water treatment comprises various methods and processes used to clean contaminants from wastewater (s). The most common form of wastewater treatment plants includes large wastewater treatment using various physical, chemical and biological to clean wastewater. Activated alumina is the major impurity which is normally presents in drinking water. It is granular form of aluminum oxide (Al2O3). In this process, the water contains a host inside the cartridge or canister of activated alumina. Alumina absorbs impurities and fresh water will continue to serve tap water. Activated alumina cartridge is changed regularly. It 'important to determine the proof of the removal of contaminants of the device is exhausted, then the treatment technique to remove, is not conducive and hospitable. Another major impurity is activated Boron. The carbon filters are absorbing impurities in water passing through a carbon dioxide (CO2) cartridge or reservoir. These filters are used to remove or eliminate unwanted odor, organic and inorganic compounds, and inactive chlorine. These activated carbons filters are also remove some potentially hazardous contaminants such as radon, hydrogen sulfide, many dissolved organic chemicals and trihalomethanes. Most inorganic chemicals are not removed through these filters. Harmful substances in raw water The unique ability of water to dissolve, to some extent, almost all chemicals and support virtually every form of life means that the supply of water contains many contaminants. The main categories of impurities in raw water are: Suspended particles, including colloids Dissolved inorganic salts Dissolved organic compounds Micro-organisms Pyroxenes Dissolved gases Particulates Solids in water contains silt, debris and pipes colloids. Colloidal particles (which may be organic or inorganic) are not really the solution or suspension, and creates a haze, or turbidity in the water. The degree of contamination can be determined by turbidimetry colloidal fouling index test. For more details visit AcopL8 .