Nitrates in water – wells of county of Medjimurje and their removal by ionic exchange

Autor: Kraljić, Saša
Přispěvatelé: Kuleš, Mirko
Jazyk: chorvatština
Rok vydání: 2009
Předmět:
Popis: Povećane koncentracije nitrata pojavljuju se kako u površinskim, tako i u podzemnim vodama kao posljedica geološkog sastava tla ili antropološkog djelovanja. Iako se povećane koncentracije nitrata u vodi za piće smatraju netoksičnima za odrasle ljude, koncentracije veće od 50 mg NO3-/l mogu biti letalne za novorođenčad i djecu do 6 mjeseci starosti. U teorijskom dijelu rada dat je osvrt na nitrate u vodi za piće i nitrate u podzemnim vodama, kao i utjecaj nitrata iz vode na zdravlje ljudi. Također su opisane metode za uklanjanje nitrata iz vode. U eksperimentalnom dijelu rada predstavljene su karakteristike selektivnog ionskog izmjenjivača RELITE A490 i praćen je njegov utjecaj na uklanjanje nitrata iz uzoraka bunarskih voda te je opisano određivanje nitrata u vodi. Increased concentration of nitrates in surface and in groundwaters is the result of geological or human activity. Although increased concentration of nitrates is not harmful for adults, nitrate concentration above 50 mg/l can be lethal for infants. In theoretical part of this graduation thesis is given an overview of nitrates in drinking water and nitrates in groundwater, as well as influence of nitrates from water to human health. Also, various methods for removal of nitrates from water were described. In experimental part of this graduation thesis various characteristics of selective ionic exchanger RELITE A490 were introduced as well as its impact to nitrate removal from water – wells water samples. Also, determining of nitrates in water was described.
Databáze: OpenAIRE