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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Use of polymers for drinking water treatment
 Filipenská, Monika ; Benešová, Libuše (advisor) ; Pivokonský, Martin (referee)
Sources of drinking water are limited. It is clear that the need for quality drinking water is rising. Therefore, it is necessary to continuously improve methods to ensure sufficient quantity sanitary water. Coagulation-flocculation process is very often used in drinking water treatment. Except drinking water supply is coagulation used in waste treatment to wastewaters, landfill leachate and other contaminated water. Coagulation is mediated by coagulants - they have the ability to suppress the repulsive forces between the particles so that they can join in a contact in larger particles called flocs. Large and compact flocs are easily separated from the treated water. For this purpose have been used inorganic salt for long time. Most commonly salts of aluminum and iron. However, their effectiveness is not sufficient and their use also brings other disadvantages. By using aluminum compounds also discouraged, because aluminum may have link with Alzheimer's disease. Therefore, there were developed new coagulants based on organic polymers. These polykoagulants are significantly more efficient in cleaning. Their properties are easily influence by the content of their substances. For the water treatment used them much smaller dose than inorganic coagulants and so there is even less sludge and reduce...
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