محصول

An Overview of Use of Linz-Donawitz (LD) Steel Slag in Agriculture

Physical and chemical and mineralogical characteristics of LD steel slag. It has been found that the density of LD slag lies between 3.3-3.6g/cm. 3 Due to its high Fe content, steel slag looks in appearance a loose collection, and appears hard and wear resistant. The grindability index of steel slag is 0.7, in contrast with the value of 0.96 and 1.0 for blast …

Impact of Iron and Steel Slag on Crop Cultivation: A …

The use of steel slag in agriculture produces not only economic but also ecological advantages. The value of silicon (Si) application for rice (Oryzasativa) has been demonstrated ... Use of slag as an iron fertilizer The problem of iron (Fe) chlorosis can affect many crops on calcareous soils, resulting in substantial yield losses. Generally it ...

Impacts of Steel-Slag-Based Silicate Fertilizer on Soil Acidity …

The National Natural Science Foundation of China entitled "Immobilization of heavy metals in a contaminated paddy soil using nano-slag-based silicon fertilizer and ecological assessment" (Approved No. 51509249), The 12th Five-year Key Programs entitled "Techniques for Agricultural Use of Steel and Iron Slag: Research and …

Possible Uses of Steelmaking Slag in Agriculture: An …

studies based on the use of slag in agriculture will be considered, which treat the use of steel slags for amending acid soils and as source of important factors and growing …

Slag-What is it Good for? | U.S. Geological Survey

Ferrous slag is currently underutilized. Although the construction industry does use some slag as an aggregate, most is simply discarded. However, slag could be used to treat acid soils or acid mine drainage. Doing so would both offset the cost of restoring abandoned mine areas, as well as decrease steel manufacturers' current …

Elution of Plant Nutrition Elements from Steel Slag …

be used for fertilizer applications. In this paper, we use the term "slag fertilizer" to refer to the fertilizer made from blast furnace slag and steelmaking slag. The content of plant …

Steel slag as accelerant in anaerobic digestion for …

Results show that all steel slags collected from different iron and steel companies (slag-1, slag-2, and slag-3) positively affect AD performance in terms of enhancing the biogas yield, methane ...

Iron and steel slag products : NIPPON SLAG ASSOCIATION

Compared with the use of natural sand, the use of iron and steel slag for ground improvement can reduce the cost of ground preparation for construction and other uses. Because blast furnace slag includes fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as a calcium silicate fertilizer.

Overview of Slag Usage Technology Development at …

NIPPON STEEL & SUMITOMO METAL TECHNICAL REPORT No. 109 JULY 2015-160-Technical Report UDC 669 . 1 . 054 . 82 * Senior Manager, Head of Dept., Planning & Coordination Dept., Slag & Cement Div.

The Comprehensive Utilization of Steel Slag in Agricultural Soils

Review Characteristics of steel slags and their use in cement …

In China, BOF slag accounts for about 70% of the annual steel slag production (Cheng and Yang, 2010).In the BOF process (Fig. 1), minor steel scrap and a large amount of molten iron from ironmaking as well as fluxes (lime/dolomite) are added into the furnace, and a 99% pure oxygen flow is applied at supersonic speed through a lance …

The Comprehensive Utilization of Steel Slag in …

reduction of Al3+ up to 0.40 m with application of steel slag; in the same period, the effects of limestone on the soil were observed up to 0.20 m (Figure 1) [22]. In a long-term experiment under no-tillage system, [26] applied limestone and

UTILIZATION OF STEEL SLAG IN IMPROVING SOIL …

Steel slag is a by-product in the process of refining iron by Blast Furnace (BF) or Electric Arc Furnace (EAF). This by-product can be used for various fields such as construction, industry and agriculture. This study aimed to observe the use of steel slag in agriculture as fertilizer, lime and ameliorant in the soils.

Steel Slag as an Iron Fertilizer for Corn Growth and Soil …

The feasibility of steel slag used as an iron fertilizer was studied in a pot experiment with corn. Slag alone or acidified slag was added to two Fe-deficient …

In situ stabilization of heavy metals in multiple-metal contaminated

Steel slag has been widely used as amendment and silicon fertilizer to alleviate the mobility and bioavailability of heavy metals in soil. The objective of this study was to evaluate the influence of particle size, composition, and application rate of slag on metal immobilization in acidic soil, metals uptake by rice and rice growth. The results …

Steelmaking Slag for Fertilizer Usage

lizers made from steelmaking slag, sil icic acid has the most important fertilizer effect. For example, a paddy field has been reported to produce a yield of 6 tons/ha, the absorption …

Elution of Plant Nutrition Elements from Steel Slag …

diamond paste. The resin-embedded specimen of slag fertilizer with the gold vapor deposition film removed was used for the static pad-dy field test. 2.1.2 Placing and collecting the slag fertilizer in the paddy field The resin-embedded specimen of slag fertilizer (before place-ment in the paddy field) is shown in . Fig. 1.

Harsco sees slag-to-fertilizer opportunity

Steel mill services company makes presentation at COP28 on a low-carbon fertilizer made of recycled steel slag. Harsco says AgroSilicio soil amendment can be used "to correct chemical …

Application of BOF Steelmaking Slag as a Partial …

Second Set of Experiments. Figure 13a (90% steel slag and 10% commercial fertilizer) and 13 (b) ( steel slag) are shown the growth of peas plant. For 2nd set of experiments, only peas plant was chosen. After conducting 1st set of experiments, it was observed that the growth of chickpea plants is quite slow with …

Steel slag as accelerant in anaerobic digestion for …

In general, use steel slag accelerant in the AD system is an effective strategy not only for realizing the resource utilization but also for achieving hazard-free treatment of waste (steel slag and cow manure). 4. Conclusions. The use of steel slag accelerants in AD systems considerably improve biogas production and COD degradation rate.

In situ stabilization of heavy metals in multiple-metal …

It has been well documented steel slag is a good silicon fertilizer material; it cannot only improve the fertility ofsoil but also enhance the growth and yield ofcrops and the resistance of plants to disease (Seebold et al. 2001; Datnoff et …

Steel Slag as an Iron Fertilizer for Corn Growth and Soil …

DOI: 10.1016/S1002-0160(06)60083-0 Corpus ID: 98115781; Steel Slag as an Iron Fertilizer for Corn Growth and Soil Improvement in a Pot Experiment @article{Wang2006SteelSA, title={Steel Slag as an Iron Fertilizer for Corn Growth and Soil Improvement in a Pot Experiment}, author={Xian Wang and Qingsheng Cai}, …

Utilization of Steel Slag in Agriculture (Review)

The process of refining iron by Blast Furnace (BF) or Electric Arc Furnace (EAF) produces steel and by-product: steel slag. This by-product can be used for various fields such as construction ...

Overview of Steel Slag Application and Utilization

arc furnace steel slag for fertilizer usage. IOP Conf. Ser.: Earth Environ. Sci., 19, 012004. ... India's current comprehensive steel slag usage rate is appallingly low, lagging well behind ...

Impacts of Steel-Slag-Based Silicate Fertilizer on Soil …

The steel slag fertilizer was applied as the basic fertilizer in each season before rice transplanting. First, steel slag fertilizer was incorpo-rated well with 5.0 kg soil in each plastic pot. These pots were incubated for 30 days after addition of slags and watered daily with distilled water to maintain 2–3 cm submergence

Cropping With Slag to Address Soil, Environment, and Food …

The influence of slag fertilizer on the soil microbiome are diverse and the possible mechanisms of slag-microbes interactions can be as follows: (1) slag fertilizer supplies nutrients not only to the plant but also to soil microorganisms; (2) slag fertilizer modifies soil microbial habitats by improving soil properties (e.g., increasing soil pH ...

Fertilizers : Iron and steel slag products : NIPPON SLAG …

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 …

Utilization of Steel Slag as a Soil Amendment and Mineral Fertilizer …

Steelmaking slag for fertilizer usage. Nippon Steel & Sumitomo Metal Technical Report No. 109, 130–136. Jafer H M, Atherton W, Sadique M, Ruddock F & Loffill E (2018). Development of a new ternary blended cementitious binder produced from waste materials for use in soft soil stabilisation. Journal of Cleaner Production 172: 516–528.

Possible Uses of Steelmaking Slag in Agriculture: An …

This chapter intends to review the state of the art related to the use in agriculture of steel slag, mainly coming from BOF process using basically Linz-Donawitz (LD) converter, in ... slags are mainly used for road construction, hydraulic engineering, and fertilizer, BF slag is mainly used for cement production 2. 1 Source: European Slag ...

Utilization of Steel Slag as a Soil Amendment and Mineral …

The primary area of application of steel slag is aggregate production in road construction with a rate of 43%. While the rate of internal use for metallurgical purposes is 11%, it is …