Title Razvoj sustava za pripremu pitke vode primjenom elektrokemijskih metoda i naprednih oksidacijskih procesa : doktorska disertacija Title (english) Development of the system for the preparation of drinking water based on the application of electrochemical methods and advanced oxidation processes : doctoral thesis Author Karlo Nađ Mentor Višnja Oreščanin (mentor)Mentor Zmagoslav Prelec (komentor)Committee member Julijan Dobrinić (predsjednik povjerenstva)Committee member Višnja Oreščanin (član povjerenstva)Committee member Zmagoslav Prelec (član povjerenstva)Committee member Goran Kniewald (član povjerenstva)Committee member Ivanka Lovrenčić Mikelić (član povjerenstva)Granter University of Rijeka Defense date and country 2015-07-10, Croatia Scientific / art field, TECHNICAL SCIENCES Universal decimal classificationUDC ) 628 - Public health engineering. Water. Sanitation. Illuminating engineering Abstract Podzemne vode Panonskog bazena predstavljaju složen sustav s kompleksnom strukturom kontaminanata s visokim koncentracijama teških metala i arsena, visokom obojenošću i mutnoćom, visokim koncentracijama suspendiranih tvari, amonija i drugih hranjivih soli te visokim organskim opterećenjem. Uzroci smanjene kvalitete podzemne vode mogu se podijeliti na prirodne i antropogene. S obzirom na kompleksnost sastava podzemne vode, potrebno je primijeniti kombinirani pristup obrade voda da bi se udovoljilo nacionalnim propisima te smjernicama Svjetske zdravstvene organizacije.
U ovoj doktorskoj disertaciji razvijena je nova metoda i sustav pročišćavanja podzemne vode koji jamči istodobno uklanjanje širokog spektra zagađivala i visoku kvalitetu pročišćene vode s obzirom na sve mjerene parametre, a neovisan je o temperaturnim promjenama i o ulaznom opterećenju. U tu svrhu korištena je kombinacija elektrokemijskih metoda (elektrokoagulacija, elektroredukcija, elektrooksidacija) i naprednih oksidacijskih procesa (UV+ozon), (UV+H2O2). Uzorci podzemnih voda uzeti su s područja istočne Slavonije u Osječko-baranjskoj županiji, na lokaciji Darde te u Vukovarsko-srijemskoj županiji na lokacijama Andrijaševaca, Antina, Komletinaca i Vrbanje (Hrvatska). Uzorci voda iz Vojvodine uzeti su s područja vodocrpilišta Zrenjanina i Temerina (Srbija). Uzorci voda iz Arizone uzeti su sa 6 lokacija na području grada Camerona/Tuba Cityja (SAD). Laboratorijskim (“jar”) testovima optimizirani su parametri kao što su: materijal elektroda, broj elektroda, ukupna površina reaktorskih elektroda za svaku vrstu materijala, razmak elektroda, jakost struje, trajanje procesa. Cilj je bio postići optimalan odnos stupnja pročišćavanja, utrošene energije i vremena aplikacije, te istodobno generirati što manju količinu otpadnog mulja. Dokazane su prednosti elektrokemijske obrade u odnosu na postojeće metode fizičko-kemijske obrade. Na osnovu dobivenih parametara konstruirano je pilot-postrojenje kapaciteta 1 m3/dan na kojemu je bila provjerena učinkovitost razvijene metode. Na osnovu dobivenih rezultata i provedene optimizacije radnih parametara procesa osigurana je tehnološka baza za konstrukciju i proizvodnju nove generacije industrijskih uređaja za pročišćavanje pitkih voda. Uz neznatne prilagodbe metodu je moguće primjeniti i za obradu različitih tipova industrijskih efluenata. Dobivena saznanja iskorištena su konkretno kod konstrukcije industrijskog uređaja za pročišćavanje procjednih voda kapaciteta 10 m3/dan, instaliranog na odlagalištu
„Viševac“ kod Rijeke.
Abstract (english) Groundwater of Pannonian Basin presents a complex system with a complex mixture of contaminants with high concentrations of heavy metals and arsenic, highly staining and turbidity, high concentrations of suspended solids, ammonia and other nutrients, and high organic load. The causes of reduced quality of groundwater can be divided into natural and anthropogenic. Considering the complex structure of groundwater it is necessary to apply a combined approach of water treatment in order to satisfy both national regulations and guidelines of the World Health Organization.
In this doctoral thesis, a new method and system of purification of groundwater is developed that guarantees the simultaneous removal of wide range of contaminants and high quality of purified water considering all measured parameters, and is independent of temperature changes and input load. For this purpose a combination of electrochemical methods (electrocoagulation, electroreduction, electrooxidation) and advanced oxidation processes (UV+ozone), (UV+H2O2) was used. Groundwater samples were taken in the area of Eastern Slavonia in Osijek-Baranja County on location in Darda, and in Vukovar-Srijem County in locations Andrijaševci, Antin, Komletinci and Vrbanja (Croatia). Samples of water were taken in Vojvodina in the area of cities Zrenjanin and Temerin (Serbia). Samples of water were taken in Arizona on six locations in the city of Cameron/Tuba (USA). By the laboratory (“jar”) tests the parameters were optimized such as the material of electrodes, number of electrodes, the overall surface of the reaction plates for each type of material, electrode distance, electric current, duration of the process. The aim was to achieve an optimal ratio of purification, energy and application time, and at the same time generate an even smaller amount of sludge. On the basis of these obtained parameters the pilot plant capacity of 1 m3/day was constructed and the effictiveness of the developed method was proven. Based on the obtained results and performed process optimization of the working parameters, the technology base for the design and fabrication of a new generation of industrial units for purification of drinking water was provided. With someminor adjustments, the method can be applied for the treatment of various types of industrial effluents. The resulting findings are used specifically for the construction of the industrial leachate treatment plant capacity of 10 m3 / day, installed at the landfill "Viševac" near Rijeka.
Keywords
podzemne vode
pitke vode
teški metali
uklanjanje arsena
elektrokoagulacija
amonijak
radionuklidi
ozonacija
UV
Keywords (english)
groundwater
drinking water
heavy metals
arsenic removal
electrocoagulation
ammonia
radionuclides
ozonation
UV
Language croatian URN:NBN urn:nbn:hr:188:720551 Study programme Title: Postgraduate university (doctoral) study; specializations in: Electrical Engineering Catalog URL http://libraries.uniri.hr/cgi-bin/ucat/unilib.cgi?form=U1550921063 Type of resource Text Extent 162 str; 30 cm File origin Born digital Access conditions Open access Terms of use Created on 2017-01-19 17:33:26
