SELECTION OF WATER TREATMENT TECHNOLOGY FOR TEHNOLOGICAL PURPOSES

Rad se temelji na analizi tehnologije obrade vode za tehnološke potrebe. U prvom dijelu rada je analizirana problematika korozije, vrste korozije, te ekonomski značaj korozije uz poseban naglasak na elektrokemijsku koroziju metala, te njen tok i intenzitet. Nadalje se pojašnjavaju tipovi vode za industrijsku upotrebu, te obrada te vode do željenih svojstava za upotrebu. Na kraju rada je opisano kompletno postrojenje za pripremu vode za parne kotlove. Sirova voda sadrži nečistoće i soli, te se takva nikada ne može primijeniti kao napojna voda. Takva voda prije upotrebe mora proći različite vrste obrade, te se tek onda može koristiti kao napojna voda. Posljedica neadekvatno pripremljene napojne vode je pojava korozije, kamenca i mulja koji otežavaju normalan rad postrojenja, smanjuju vijek trajanja, te utječu na sigurnost i ekonomičnost postrojenja.The paper is based on the analysis of the water treatment technology for technological processes. The first part of the paper analyzes the problems of corrosion, types of corrosion, and the economic influence of corrosion with a special emphasis on electrochemical corrosion of metals, and its flop and intesity. Further are explained the types of water for industrial using, and treatment of that water to the desired attribute for use. At the and of the paper, a complete water treatment plant for steam boilers is described. Crude water contains impurities and salts, and can never be uses as a supply water. Such water prior to use has to undergo different types of treatment, so it can be used as a supply water. The consequence of inadequately prepared suppy water is the occurrence of corrosion, scaling and mud that hinders the normal operation of the plan, reduces its lifespan and have an effect on the safety and economy of the plant