Patents Introduction Steel slag is a mixture of metal oxides and silicon dioxide and may contain metal sulphide along with metal in the ele-mental form. Depending on the stage or type of steel making process, the slag generated is called High Sulphur slag, LD slag (Steel Furnace slag – SFS), LF slag or Electric Arc Furnace (EAF) slag. Concrete. In industrial countries, the use of steel slag in agriculture is mature (Wang and Qing, 2006). It might seem counter-intuitive, but steel slag has exactly the right chemical composition to do this. Steel making slag (also: steel slag) is produced during the conversion of hot metal to crude steel in a basic oxygen furnace or during the melting of scrap in an electric arc furnace. In the conventional application of the steelmaking slag in civil engineering, the elution of free-lime (CaO) from slag and the expansion of slag caused by hydration have been the major problems, which are yet to be solved. Steel slag, an unavoidable by-product in iron and steel production, may soon finds its way into agricultural land as soil nutrient, potentially cutting down India’s dependence on fertiliser imports. Slag processing GGBS; How Is Slag Used? The Use of Ag-Slag is Time-Proven Ag-Slag has proven its value as an agricultural liming material since the 1920's in all types of crop production and landscaping. Now, technicians at our Kryvyi Rih site in Ukraine have been exploring new ways to sell slag as a fertiliser or soil improver. RESEARCH ON THE USE OF SLAG FROM THE STEEL INDUSTRY IN AGRICULTURE AND FOR AMELIORATION ACIDIC SOILS Valentina Mihaela, PETCU (VASILE)1, M. MIHALACHE² University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Agriculture Corresponding author: mihaelapetcu2505@yahoo.com Abstract. Use of BOF steel slag in agriculture: column test evaluation of effects on alkaline soils and drainage water By C. Pistocchi, G. Ragaglini, T.A. High price of slag disposal imposes the need for finding new fields of its utilisation. Physical and chemical characterization of steel slag is a deciding factor of steel slag utilization depending on the properties it can be used as road aggregate, cement and concrete admixture, soil stabilizer, construction materials, etc. A consecutive early rice-late rice rotation experiment was conducted to test the impacts of steel slag on soil pH, silicon availability, rice growth and metals-immobilization in paddy soil. Disposal of different wastes produced from different Industries is a great problem for any country. The government is particularly interested in using slag in areas with acidic soils, mostly in the eastern part of the country where productivity is lower, according to the Financial Express newspaper. Steel slag is by-product formed in the process of steel manufacturing. With the requirements of sustainable development in China, the utilization of steel slag has become a hot issue. Full details of the specific properties and applications for each of the types of slag can be found on the pages as follows: Air-cooled Blast Furnace Slag (ABS) Air-cooled Basic Oxygen Steel Slag (BOS) Hawai steel slag has been utilized in agriculture as a liming material for improving acid soil or as Si source for paddy rice and sugar cane plants. The authorized beneficial uses under this general permit are limited to use as an agricultural liming agent, as an ingredient in specialty fertilizers and an ingredient in mine grouting material. agricultural technology: Liming. engaging important agricultural land and causing grave pollution to the environment. Steel slag output is approximately 20% by mass of the crude steel output [1 ]. Slags from the Iron and Steel Industry. India: The Ministry of Steel has asked that the Ministry of Agriculture examine using slag from steel and iron production as a fertilizer. Steel LD slag has been successfully used as a substitute for limestone to neutralize soil acidity in agricultural soils for many years, and research has shown slag use to be comparable to or superior to limestone in some cases. When pig iron is smelted in a blast furnace, the flux is added to the raw materials from the blast furnace in addition to iron ore and fuel (coke). The main uses of Slag are in construction, water treatment, agriculture, cementitious applications. struction (as a stabilisation layer) and in agriculture (fine fractions are used for soil improvement). In Europe, USA, Japan, China, Korea, and Hawai steel slag has been utilized in agriculture as a liming material for improving acid soil or as Si source for paddy rice and sugar cane plants. 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