The use of ammonium sulfate as an inhibitor of dioxin synthesis in iron ore sintering process

• Autorzy: Łechtańska P. , Wielgosiński G.

Identyfikatory

DOI

10.2478/eces-2014-0005

Warianty tytułu

PL

Wykorzystanie siarczanu amonu jako inhibitora syntezy dioksyn w procesie spiekania rudy żelaza

• Języki publikacji: EN

Abstrakty

EN

The main air pollutants in the sintering process of iron ore are polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans (PCDD/Fs) and harmful dust. Ore sintering on sinter strands is one of the first technology steps in the ironworks. It is a process in which iron ore is crushed, subjected to annealing and mixed with appropriate additives, and then sintered in order to produce sinter which is the main component of iron in the blast furnace process. PCDD/Fs emissions were measured and the addition of ammonium sulfate as an inhibitor of the synthesis of dioxins in the sintering process of iron ore was studied.

PL

Do głównych substancji zanieczyszczających powietrze w procesie spiekania rud żelaza należą polichlorowane dibenzodioksyny i polichlorowane dibenzofurany (PCDD/PCDF), a także szkodliwe pyły. Spiekanie rud na taśmach jest jednym z pierwszych węzłów technologicznych huty o profilu surowcowym. Jest to proces, w którym ruda żelaza jest kruszona, poddawana wyżarzaniu i mieszana z odpowiednimi dodatkami, a następnie spiekana w celu otrzymania spieku, który stanowi główny składnik żelazowy w procesie wielkopiecowym. W aglomerowni wykonano pomiary emisji PCDD/Fs, a także badano dodatek siarczanu amonu jako inhibitora syntezy dioksyn w procesie spiekania rudy żelaza.

Słowa kluczowe

EN

iron ore sintering; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; inhibitor; ammonium sulphate; de novo synthesis; emission reduction

PL

spiekanie rudy żelaza; polichlorowane dibenzo-p-dioksyny; polichlorowane dibenzofurany; inhibitor; siarczan amonu; synteza de novo; ograniczanie emisji

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. S
• Rocznik: 2014
• Tom: Vol. 21, nr 1
• Strony: 59--70
• Opis fizyczny: Bibliogr. 27 poz., tab., wykr., rys.

Twórcy

autor

Łechtańska P.

• Faculty of Process and Environmental Engineering, Lodz University of Technology, ul. Wólczańska 175, 90-924 Łódź, Poland, phone [phone], fax [phone]

autor

Wielgosiński G.

• Faculty of Process and Environmental Engineering, Lodz University of Technology, ul. Wólczańska 175, 90-924 Łódź, Poland, phone [phone], fax [phone]

Bibliografia

• [1] Grochowalski A, Lassen C, Holtzer M, Sadowski M, Hudyma T. Determination of PCDDs, PCDFs, PCBs and HCB emissions from the metallurgical sector in Poland. Environ Sci Pollut Res. 2007;14(5):326-332, DOI: 10.1065/espr2006.05.303.
• [2] Possibilities of the reduction in dioxin emission in metallurgical sector in Poland. Warszawa: Ministry of Environment; 2005.
• [3] Wielgosiński G. Dioxin emissions from thermal processes and methods of emission reduction. Łódź: Polish Academy of Sciences; 2009.
• [4] Spiro TG, Stigliani WM. Toxic chemicals, In: Chemistry of the environment. Asoke K, Grosch W, editors. New Delhi: Prentice-Hall of India; 2004;423-428.
• [5] Belitz HD, Grosch W. Food contamination. In: Food Chemistry. Translation from the fourth German edition. Springer; United Kingdom; 2003; 465-469.
• [6] Kogevinas M. Human health effect of dioxins: cancer, reproductive end endocrine system effects. Human Reproductive Update. 2001;7:331-339.
• [7] Cole P, Trochopoulos D, Pastides H, Star T, Mandel JS. Dioxin and cancers: a critical review. Regulatory Toxicol Pharmacol. 2003;38:378-388, DOI: 10.1016/j.yrtph.2003.08.002.
• [8] Bofetta P. Human cancer from environmental pollutants: The epidemiological evidence. Mutation Research - Genetic Toxicology and Environmental Mutagenesis. 2006;608:157-162. DOI: 10.1016/j.mrgentox.2006.02.015.
• [9] Gregoraszczuk EL. Dioxins - endocrine disrupters. VIII Scientific Conference on Dioxins in Industry and Environment. Kraków 2005.
• [10] Mendes AJJ. The endocrine disrupters: a major medical challenge. Food Chem Toxicol. 2002;40:781-788.
• [11] Stockholm Convention on Persistent Organic Compounds, UNEP, 2001.
• [12] National balance of SO2, NOx, CO, NMVOCs, NH3, TPM, heavy metals and POPs. Warszawa: The National Centre for Emission Balancing and Management; 2010.
• [13] Kuzuhara S, Sato H, Tsubouchi N, Ohtsuka Y, Kasai E. Effect of nitrogen-containing compounds on polychlorinated dibenzo-p-dioxin/dibenzofuran formation through de novo synthesis. Environ Sci Technol. 2005;39:795-799. DOI: 10.1021/es049040j.
• [14] Buekens A, Stieglitz L, Hell K, Huang H, Segers P. Dioxins from thermal and metallurgical processes: recent studies for the iron and steel industry. Chemosphere. 2001;42:729-735.
• [15] Best Available Techniques (BAT) Reference Document for Iron and Steel Production. Sevilla: European IPPC Bureau; 2012.
• [16] Ooi TC, Thompson D, Anderson DR, Fisher R, Fray T, Zandi M. The effect of charcoal combustion on iron-ore sintering performance and emission of persistent organic pollutants. Combust Flame. 2011;158:979-987. DOI: 10.1016/j.combustflame.2011.01.020.
• [17] Wang LC, Lee WJ, Tsai PJ, Lee WS, Chang-Chien GP. Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans from stack off-gases of sinter plants. Chemosphere. 2003;50:1123-1129.
• [18] Ooi TC, Lu L. Formation and mitigation of PCDD/Fs in iron ore sintering. Chemosphere. 2011;85:291-299. DOI: 10.1016/j.chemosphere.2011.08.020.
• [19] Fisher R, Anderson DR, Pearson L, Quin P. Characterization of release of polychlorinated dibenzo-p-dioxins from integrated iron and steel works in the United Kingdom. Organohalogen Compounds. 1997;31:262-267.
• [20] Nakano M, Hosotani Y, Kasai E. Observation of behaviour of dioxins and some relating elements in iron ore sintering bed by quenching pot test. ISIJ Int. 2005;45(4):609-617.
• [21] Nakano M, Morii K, Sato T. Factors accelerating dioxin emission from iron ore sintering machines. ISIJ Int. 2009;49:729-734.
• [22] Tan P, Neuschütz D. Study on polychlorinated dibenzo-p-dioxin/furan formation in iron ore sintering process. Metallurgical and Material Transactions B. 2004;35B:983-991.
• [23] Metallurgical Industry. United States Environmental Protection Agency; 2005.
• [24] Łechtańska P., Wielgosiński G. Dioxin emission from sintering plant. VIII International Conference Air Protection in Theory and Practice. Zakopane 2012.
• [25] Naikwadi KP, Karasek FW. Prevention of PCDD formation in MSW incinerators by inhibition of catalytic activity of fly ash produced. Chemosphere. 1989;19:299-304. DOI: 10.1016/0045-6535(89)90327-5.
• [26] Naikwadi KP, Albrecht ID, Karasek FW. Mechanism of formation of PCDD/F in industrial waste incineration and a method of prevention of their formation. Chemosphere. 1993;27:335-342.
• [27] Boscolo M, Padoano E, Tommasi S. Identification of possible dioxin emission reduction strategies in pre-existing iron ore sinter plants. Ironmaking and Steelmaking. 2008;35(2):146-152. DOI: 10.1179/174328107X247815.