Uklanjanje cijanida i tiocijanata iz otpadnih voda

undergraduate thesis

• Title (english): Removal of cyanide and thiocyanate from wastewater
• Author: Marko Bochniček
• Mentor: Matija Cvetnić (mentor)
• Committee member: Matija Cvetnić (predsjednik povjerenstva)
• Committee member: Dajana Kučić Grgić (član povjerenstva)
• Committee member: Lidija Furač (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2023-09-14, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

Cijanidi i tiocijanati su anorganske tvari koje su dugo poznate i nalaze se u okolišu svakodnevno u manjim koncentracijama. Razvojem i sve većeg djelovanja industrije došlo je do znatnog porasta koncentracije tih tvari. Glavni izvor otpadnih voda koje ih sadrže su industrije prerade metala i kompleksnih spojeva. Cijanidi i tiocijanati su tvari koje su vrlo nestabilne i reaktivne te mogu reagirati s organskim tvarima i tvoriti vrlo toksične spojeve. Zbog tih karakteristika, toksičnost spojeva je dodatno izražena, što također negativno utječe na ljudski, životinjski i biljni svijet. Razvojem kemije, poznavanje ovih tvari je znatno napredovalo zajedno sa poznavanjem njihovih karakteristika, što omogućuje izume novih metoda za njihovo uklanjanje. Cilj ovog rada je istražiti i opisati neke od metoda koje se koriste u svrhu uklanjanja cijanida i tiocijanata iz otpadnih voda. Cilj je postići razumijevanje ovih metoda i njihovu primjenu kako te tvari ne bi dospjele u kontakt sa živim svijetom i prouzročilo nepovratne negativne posljedice.

Abstract (english)

Cyanides and thiocyanates are anorganic substances, which are known for a long time and are daily spread in nature in smaller concentrations. With the development and rise in it's activity of industry, their concentrations have grown in all kinds of compounds of these substances. Main sources of wastewaters that contain them are industries of metal and compley compounds. Cyanides and thiocyanates are very unstable and reactive and can react with organic compounds to create very toxic compounds. Because of these characteristics, their toxycity is enhanced, which can have an negative affect on human, animal and plant life. With the development of chemistry, their understanding significantly advanced together with the understanding of their characteristics, which allowed the development of new methods for their removal. The goal of this thesis is to explore and describe some of the methods, which are to be used for the extraction of cyanides and thiocyanates from wastewaters. The goal is to develope better understanding and their uses, so the substances wouldn't come in contact with the living world and cause irreversible negative effects.

• Keywords: cijanid; tiocijanat; otpadne vode; metode
• Keywords (english): cyanide; thiocynate; wastewaters; methods
• Language: croatian
• URN:NBN: urn:nbn:hr:149:937410
• Study programme: Title: Chemical Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-09-15 12:04:20