steel slag in agriculture

Slag has been used in agriculture for some time, notably in the USA, Germany, and France, and it has proved both effective and cost-efficient. It might seem counter-intuitive, but steel slag has exactly the right chemical composition to do this. Steel slag is by-product formed in the process of steel manufacturing. The integrated steel plants in the country generate large volumes of steel slag having more than 50% of free lime. 2008), Zhang XiangYu; Zhang Hua; He PinJing; Shao LiMing; Wang RuYi; and Chen RongHuanBeneficial reuse of stainless steel slag and its heavy metals pollution risk.Research of Environmental Sciences 21(4): 33-37. Academia.edu no longer supports Internet Explorer. Iron oxides and manganese give vitality to roots. The Euroslag Association has shown that converted lime from steel slag is suitable for several kinds of soils. Its alkaline property remedies soil acidity [67]. With the requirements of sustainable development in China, the utilization of steel slag has become a hot issue. Improves appearance quality, increasing the ratio of highest grade rice. Boosts root activity, reducing the wilting of lower leaves. Steel LD slag can also be used in fertilizers for agricultural applications (Das et al., 2007). DOI: http://dx.doi.org/10.12944/CWE.9.1.31, Humaria M. S. Y. 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 Application in agriculture Steel slag contains fertilizer components CaO, SiO 2 , and MgO. Slag is a byproduct of metal smelting, and hundreds of tons of it are produced every year all over the world in the process of refining metals and making alloys.Like other industrial byproducts, slag actually has many uses, and rarely goes to waste. 102, No. It is produced during the separation of the liquid steel from impurities in steelmaking furnace and is a non-metallic by-product of steelmaking process. On the other hand, the increase of slags recovery and use in different fields of application, such as in agriculture, allowed to reduce landfill slags and to preserve natural resources. The efforts have been made in Tata steel that LD slag after grinding to 300 mesh, can be used as a soil conditioner in paddy field, tea gardens etc (Basu et al., 2002). Enter the email address you signed up with and we'll email you a reset link. Through an in-depth study on steel slag, it is apparent that it has been widely used in various fields in recent years. 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. The results of the researchers with the use of steel slag in agriculture have demonstrated that the proper application of these residues brings benefits on the chemical attributes of the soil, such as increase of pH in acidic soils; increase in the nutrient content of phosphorus, calcium, and magnesium; and increase in the content of the beneficial element silicon [6, 11, 12, 13, 14]; these aspects contribute to greater … Steel slag is by-product formed in the process of steel manufacturing. 5, (2007), pp. With the requirements of sustainable development in China, the utilization of steel slag has become a hot issue. 9, No. Because blast furnace slag contains fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as calcium silicate fertilizer.In addition to these three components, steelmaking slag also contains components such as FeO, MnO, and P 2 O 5, and is used for a broad range of agricultural purposes, including dry field farming and pastures in addition to rice cultivation. Properties and Uses of Steelmaking Slag. Available from: http://www.cwejournal.org/?p=5746, Download article (pdf) Citation Manager Hydrometallurgy, Vol. Silicified cells form on leaf surfaces, preventing rice blight. Use of Steel Slag in Agriculture and for Reclamation of Acidic Lands Introduction This guide discusses the use of steel slag, a co-product of the steel making process, as a substitute for limestone for agricultural applications, and its use in reclamation of acidic lands. Publish History, Enviro Research Publishers, 14 Green House, Prince Colony, Shahjahanabad, Bhopal-462 001, Madhya Pradesh, India, Copyright 2021 © Current World Environment, Water Relations of Two Adjacently Growing Tree Species Shorea Robusta Gaertn-and Pinus Roxburbhii Sarg-in the Lower Himalayan Region. Physical and chemical characterization of steel slag is a deciding factor of steel slag utilization as recycled raw material as road aggregate, cement … (slag), generated by the production of iron/steel, draws more attention to the need to recycle them more efficiently. Converter slag as a liming agent in the amelioration of acidic soils. LD steel slag as fertilizer in agriculture. For example the Cr and V contents into potatoes are reduced in soils with higher content of organic matter and with a … To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. Impact of Iron and Steel Slag on Crop Cultivation: A Review. (Mar. Steel slag is a large amount of residual material produced in the process of steel manufacturing. The metals uptake by the plants is affected by the soil properties. Possible Uses of Steelmaking Slag in Agriculture: An Overview Effective in improving iron-poor soil (preventing root rot, leaf blight, and autumn paddy degradation). increases harvests by increasing the number of unshelled rice kernels and thousand kernel weight. 2.2 Steel slag and limespoil: production and chemistry 9 2.2.1 Steel slag 9 ... 2.4.2.2 Utilization in the agriculture and construction sectors 26 2.5 Mechanisms of trace element mobility in soils and waste systems 29 . In addition to these three components, it also contains components such as FeO, MnO, and P 2 O 5 , so it has been used for a broad range of agricultural purposes. Steel slag as a solid waste with great development In this paper, the common ways of resource utilization of steel slag in construction, agriculture, industry, and catalysis are reviewed. This review paper addresses the issuesto analyze the impacts of Iron and Steel slag on crop cultivation. 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Improves ripening in later growth stages. Steelmaking slag is an integral part of the steelmaking process. 49M hectares of the country’s arable land has acidic soils from a total of 142M … 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. (14-21), ISSN 0304-386X, Ali, M.T. Steel slag offers considerable cost advantages over commercial limestone and has been successfully utilized as a substitute for limestone to neutralize soil acidity in agricultural soils in several countries. Helps improve acidic and deteriorated soil, creating a well-balanced soil that not only improves alkalinity but also promotes the breakdown of organic substances. (2007). Creates strong stems that resist collapse. Silicate, lime, phosphate, and magnesia create healthy rice plants. Material Recycling - Trends and Perspectives, 2012, Use of Steel making Slag as a soil conditioner to improve the stability of soil for land development, Recycling and environmental issues of metallurgical slags and salt fluxes, Some environmental aspects of BF, EAF and BOF. In agriculture, slag aggregates (Ag-Slag) have been used as an agricultural liming material since the 1920's in all types of crop production and landscaping. The value of silicon (Si) application for rice (Oryzasativa) has been demonstrated when soil soluble Si is low.Impact of solid waste on crop cultivation depends on the availability and quantity of different constituents like PH, Ammonia, Nitrites, Nitrates, Permanganate Value (PV), Biochemical Oxygen Demand (BOD5 or BOD), Chemical Oxygen Demand (COD), Total Suspended Solids (TSS) and Turbidity, Total Dissolved Solids (TDS) etcpresent in the solid waste.This has also been discussed in this review paper. They are non-metallic rock-like materials which are produced together with the metallic products of these processes. 1Kolhan University, Chaibasa, Jharkhand India . Impact of Iron and Steel Slag on Crop Cultivation: A Review. Through an in-depth study on steel slag, it is apparent that it has been widely used in various fields in recent years. www.nationalslag.org/.../nsa_185-5_bf_slag_as_agricultural_liming_mat, http://www.intechopen.com/books/material-recycling-trends-and-perspectives/possible-uses-of-steelmaking-slag-in-agriculture-an-overview, Aarabi-Karasgani, M., Rashchi, F., Mostoufi, N. &Vahidi, E. (2010). (Increases thousand kernel weight.). Since 1880, steel slag was used as phosphate fertilizer because of the amount of high phosphorus ore in western Europe (Motz and Geiseler, 2001). As early as the 1930s, steel slag was being used as an agricultural amendment in Curr World Environ 2014;9(1). The resource utilization of steel slag is not only conducive to resource conservation, but also conducive to sustainable production and environmental protection. It appears in concrete, aggregate road materials, as ballast, and is sometimes used as a component of phosphate fertilizer. India: The Ministry of Steel has asked that the Ministry of Agriculture examine using slag from steel and iron production as a fertilizer. can steel slag serve even partially as perlte /vermiculite in agriculture applications? In industrial countries, the use of steel slag in agriculture is mature (Wang and Qing, 2006). 2008-Apr. Steel slag is a large amount of residual material produced in the process of steel manufacturing. Although in recent years slag use has increased, the application for agriculture purposes needs to be further investigated. Iron and steelmaking slags (ferrous slags) are co-products of the iron and steel making industry. 2.2 Fertilizers made from blast furnace slag and steelmaking slag Iron and steel slag can largely be divided into blast furnace slag and steelmaking slag. Slag can be used as a soil conditioner (high content of Ca and Mg), Si supply (improves the crops resistance to pests and diseases), … to Nippon Slag Association’s statistics on the use of slag in 2012, the total consumption of blast furnace and steelmaking slags for fer-tilizer and soil amendment was 260 000 tons. In recent years, several studies have revealed that the slag-based fertilizer amendment in agriculture has great promise to improve crop productivity (White et al., 2017; Gwon et al., 2018), alleviate soil acidification (Ning et al., 2016), mitigate greenhouse gas (GHG) emissions (Wang et al., 2015; Gwon et al., 2018), and stabilize heavy metals in contaminated soils (Ning et al., 2016), which … Especially in densely populated (2008); ISSN: 1001-6929. “The use of steel slag may be one of the most green solution which may avoid accumulation of large wastes in steel plants as well as help in treatment of soil for improving crop productivity at low cost,” the steel ministry said. The physical and chemical characteristics of steel slag are summarized, and the pretreatment progress of steel slag in steel industries as recycled raw material was introduced. Steel Slag Price - Select 2020 high quality Steel Slag Price products in best price from certified Chinese Steel Slag Pot manufacturers, Cast Steel Slag Ladle suppliers, wholesalers and … Owing to its high Si content, the use of slag as silicate fertilizer is gaining demand. Creates a general soil fertilizer containing a good balance of various fertilizer components needed by crops, including silicate, iron oxide, lime, magnesia, phosphate, manganese, and boron. The main problem concerning the utilization of steel slag in agriculture consists of the possible leaching of heavy metals. 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. (715-720), ISSN 1560-8530, Peregrina, F.; Mariscal, I.; Ordonez, R.; Gonzalez, P.; Terefe, T.; and Espejo, R Agronomic Implications of Converter Basic Slag as a Magnesium Source on Acid Soils..Soil Science Society of America Journal 72(2): 402-411. The materials are used to maximise yields of cultivated crops and pasture, improve soil texture and neutralize high soil acidity. Blast furnace slag is made during the melting and reduction of iron […] Promotes photosynthesis by improving light-receiving condition of leaves. These materials pose environmental pollution in the nearby locality because many of them are nonbiodegradable. &Shahram, S.H. Sorry, preview is currently unavailable. Leaching of vanadium from LD converter slag using sulfuric acid. The use of steel slag in agriculture produces not only economic but also ecological advantages. 1-4, pp. The increasing quantities of slag that are deposited on the land cause the removal of more and more lands from the agricultural circuit and an increse in the costs of recycling them. You can download the paper by clicking the button above. India: The Ministry of Steel has asked that the Ministry of Agriculture examine using slag from steel and iron production as a fertilizer. Downloadable! Steelmaking slag deriving from BOF process (using the Linz-Donawitz (LD) converter) comes from the pig iron refining process, wh ich converts molten pig iron and steel scraps into high quality steel. Most slags from steel pl ant derive from this pr ocess, with an average of 150-200 kg of slag generated per tonne of st eel produced. 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. Disposal of different wastes produced from different Industries is a great problem for any country. Depending on the iron and steel production process different slag types can be manufactured. Curr World Environ 2014;9(1) DOI:http://dx.doi.org/10.12944/CWE.9.1.31, Humaria M. S. Y. Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore.Slag is usually a mixture of metal oxides and silicon dioxide.However, slags can contain metal sulfides and elemental metals. International Journal of Agriculture and Biology, Vol. Soil ( preventing root rot, leaf blight, and is sometimes used a! Using sulfuric acid in fertilizers for agricultural applications ( Das et al., 2007.. 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