Upotreba troske iz elektropećnog postupka proizvodnje čelika u poljoprivredi

undergraduate thesis

• Title (english): Use of slag from the electric arc furnace steel making process in the agriculture
• Author: Tea Čavrak
• Mentor: Ivan Brnardić (mentor)
• Committee member: Natalija Dolić (predsjednik povjerenstva)
• Committee member: Ivan Brnardić (član povjerenstva)
• Committee member: Tamara Holjevac-Grgurić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Metallurgy; Sisak
• Defense date and country: 2017-09-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy

Abstract

Proizvodnjom čelika elektropećnim postupkom nastaju velike količine troske. S obzirom na elektropećni postupak nastaju dvije vrste troske, a to su crna troska koja nastaje u elektrolučnoj peći i bijela troska koja nastaje u lonac peći. Troske se prema svojim fizikalno-kemijskim karakteristikama svrstavaju u neopasni otpad te se mogu odlagati na predviđena odlagališta. Odlaganje se pokušava izbjeći s obzirom na visoke cijene, moguća onečišćenja tla, gubitka obradivih zemljišnih površina, te u slučaju troske gubitka njenih vrijednih sastojaka samim odlaganjem. U skoroj budućnosti Europska i Hrvatska politika nalažu nultu stopu odlaganja te se time pokušava pronaći kako i gdje možemo primijeniti trosku. Tako se troske danas koriste u građevini, cestogradnji pa i u poljoprivredi.
U ovom radu prikazane su fizikalno-kemijske karakteristike crne i bijele troske te kako se prema svojim karakteristikama mogu koristiti u poljoprivredi i koje su prednosti korištenja elektropećne troske u poljoprivredi.

Abstract (english)

In the production of the steel by the electric arc furnace process large amounts of slags are formed. Due to the electric arc furnace process, there are two different types of slags, black slag formed in electric arc furnace and white slag formed in ladle furnace slag. Both slags according to physical-chemical characteristic are classified as non-hazardous waste and they can be disposed at the provided landfill. Disposal is attempted to avoid due to high cost, possible soil contamination, loss of landfill, and loss of slags valuable ingredients by disposal. In future European and Croatian politics are zero rate of disposal so there is a need to find how and where we can apply the slag. Thus, slags are used today in construction, road construction and agriculture.
In this paper are present physico-chemical characteristic of black and white slag, how they can be used in agriculture according to their characteristic, and the advantages of using them in agriculture.

• Keywords: čelik; elektropećna troska; poljoprivreda
• Keywords (english): steel; electric arc furnace slag; agriculture
• Language: croatian
• URN:NBN: urn:nbn:hr:115:647769
• Study programme: Title: Metallurgy; specializations in: Metallurgical Engineering, Industrial Ecology; Course: Industrial Ecology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-10-30 10:03:55