UV zračenje za obradu obojenih otpadnih voda

Hrvatska je jedna od rijetkih država bogata vodom. U nastojanju da sačuva svoje vodne resurse i upravlja njima na održivi način, primjenjuje se Zakon o vodama (NN 107/95) i pripadajući pravilnici. Prema važećoj državnoj odluci kvaliteta vode u rijekama u blizini grada Karlovca pripada II. kategoriji, a ovaj završni rad istražuje problematiku odvodnje i pročišćavanja obojenih otpadnih voda UV zračenjem. Obojenje je jedan od najvidljivijih pokazatelja onečišćenja vode. Prisutnost bojila čak i u malim koncentracijama vidljiva je i nije prihvatljiva. Ispuštanje obojene otpadne vode nije samo uništavanje estetske prirode prijemnika, već su obojene tvari vrlo često toksične za vodeni ekosustav. Iako priličan broj tehnologija obuhvaća poznate postupke obrade otpadne vode, vrlo malo njih se zasniva na postupcima napredne oksidacije i obrade UV zračenjem (UV, UV/H2O2, UV/O3, UV/H2O2/O3,). Za navedene procese određeni su optimalni uvjeti za maksimalnu djelotvornost razgradnje organskog onečišćivala, na osnovu promjene ekoloških pokazatelja: sadržaja ukupnog organskog ugljika (TOC), sadržaj adsorbiranih organskih halogenida (AOX). Glavni cilj ovoga rada bio je istražiti učinkovitost obrade obojene otpadne vode naprednim UV zračenjem.Croatia is one of the few countries rich in water. In an effort to preserve it is water resources and manage them sustainably, the Law on Waters (NN 107/95) and associated regulations. According to the current decision of state water quality in rivers near the town of Karlovac belongs to the secong category, and this final work explores the issues of drainage and waste water treatment of colored waste water by UV radiation. Colouring is one of the most visible indicators of water pollution. The presenc of dyes, even in low concentrations is visible and is not acceptable. The discharge of colored waste water is not only destroying the aesthetic nature of the receiver, but the colored substances are often toxic to theaquatic ecosystem. Althouh quite a number of technologies includes known methods of wastewater treatment, very few of them are based on advanced oxidation processes and UV treatment (UV, UV/H2O2, UV/O3, UV/h2O2/O3,). For these processes are determined by the optimum conditions for maximum efficiency of the decomposition of organic pollutants , based on changes in environmental indicators : the content of total organic carbon ( TOC ) content of adsorbed organic halides ( AOX ). The main objective of this study was to evaluate the effectiveness of tretment of colored waste water advanced UV radiation. The final work in more detail are developed characteristics of all types of waste water and method od UV radiation for the treatment of colored waste water