The entire production of Sponge Iron of Low Sulphur and low phosphorus is consumed in house for the manufacturing of good quality of M.S. Billets . M S Billets. Billets are semi-finished product used as a raw material in rolling mill for the production of the TMT bars . We are using selected Scrap, Pig Iron and in house Sponge Iron and in a ...
In a continuous operation experiment run for approximately 200 days, the sponge iron phosphorus removal percolation bed showed a good phosphorus removal ability. Under the condition of TP = 10 mg/L, HRT = 1 H, the comprehensive phosphorus removal rate was 30–89%, and the accumulated phosphorus adsorption per unit volume was 6.95 kg/m3.
It is also known as sponge iron since its structure is just like sponge with a network of connecting pores. These pores results in a large internal surface area which is around 10,000 times greater than the internal surface area of solid iron. ... Phosphorus % 0.04 to 0.07: 0.03 to 0.08: 8: Residuals %
Phosphorous is an undesired element present in iron ore used in the steel making process. It leads to an increase in overall production cost as well as deteriorated steel quality. The desired phosphorus content in iron ores used in steel making is < 0.1%. Numerous beneficiation studies are mentioned in the literature; however, there is no commercial scale …
Sponge iron (s-Fe 0) has a large specific surface area, is cheap and easy to obtain, and has a good reduction capacity.Therefore, its efficacy in enhanced wastewater denitrification and phosphorus removal has been extensively examined. Because of the strong magnetic properties and reactivity of s-Fe 0, a passivation layer dominated by iron oxides is …
Integrating sponge iron (SI) and microelectrolysis individually into constructed wetlands (CWs) to enhance nitrogen and phosphorus removal are challenged by ammonia (NH 4 +-N) accumulation and limited total phosphorus (TP) removal efficiency, respectively.In this study, a microelectrolysis-assisted CW using SI as filler surrounding the cathode (e-SICW) …
Insufficient denitrification and limited phosphorus uptake hinder nitrogen and phosphorus removal in constructed wetlands (CWs). Sponge iron is a promising material for the removal of phosphorus and nitrogen because of its strong reducing power, high electronegativity, and inexpensive cost. The influence of factors including initial solution pH, dosage, and the …
Compared with chemical precipitation and physical adsorption, Enhanced Biological Phosphorus Removal (EBPR) has more obvious advantages, such as high efficiency, low cost, and good sustainability with less secondary pollution [5], [6].Izadi et al. found that when Dissolved Oxygen (DO) was 0.8 mg/L, the phosphorus removal efficiency could exceed 90 % by EBPR …
In this study, the phosphorus removal capacities of sponge iron and zeolite were evaluated and related to their physico-chemical characteristics. The potential mechanisms affecting the adsorptive removal of phosphorus from aqueous solutions onto sponge iron and zeolite were investigated in batch experiments. The pseudo-second-order kinetics ...
The biological and abiotic coupling system created by sponge iron and sulfur autotrophic denitrifying microorganisms enhanced nitrate and phosphate removal. Moreover, sponge iron oxidation produced alkalinity, which could be used as a buffer to maintain a suitable pH range for microbial growth.
Adding sponge iron (SI) enhanced the degradation of organic matter, nitrogen, and phosphorus pollutants in the biological treatment unit, and the removal efficiencies of COD, NH 4 +-N, TN, and TP increased by 9.61 %, 9.64 %, 8.51 %, and 3.32 %, respectively.
LOW SULPHUR & PHOSPHORUS CONTENT : Recognizing the importance of environmental responsibility and product purity, our sponge iron features low sulphur and phosphorus content. This not only aligns with sustainability goals but also meets the stringent requirements of modern industrial practices. DUST-FREE PRODUCTION PROCESS
Supra Steel & Power Private Limited is a leading manufacturer of the finest quality Direct Reduce Iron Or Sponge Iron as popularly known from indigenous iron ore and non-cooking coal available abundantly in the area. .
After the reactor of microbial coupling sulfur/sponge iron carbon composite fillers became stable, the removal efficiency of TN and TP could reach 90% and more than 83%, respectively; Corrosion of sponge iron and phosphorus removal process could also be promoted by biological iron and H + that was produced in the sulfur autotrophic ...
High levels of nitrogen and phosphorus lead to excessive algae blooms, which result in excessive consumption of dissolved oxygen in water, reducing aquatic biodiversity and increasing the presence of harmful bacteria and toxins [4].
3) Low impurities: Our pellets have low levels of silica, alumina, phosphorus and sulphur, which reduce slag formation and energy consumption in sponge iron production. 4) Uniform size and shape: Our Pellets have a narrow size distribution and a spherical shape, which improve the gas-solid contact and the heat transfer in the rotary kiln. 5) High reducibility: Our Pellets have a …
Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route, which has shown a phenomenal growth in India. The proportion of crude steel produced by the secondary steel sector rose from 26 mMT(37%) in 1999-2k to 54 mMT(59%) in 2007-08. ... Lower sulfur and phosphorus content. Negligible tramp ...
Sponge Iron vs Pig Iron are two popular raw materials used in manufacturing. Sponge Iron, also known as Direct Reduced Iron (DRI), is produced by reducing iron ore in the form of lumps/pellets using non-coking coal in a rotary kiln. ... Phosphorus Content: 0.1 – 2.0%; Pig Iron Composition. Pig Iron is a high-carbon ferrous material produced ...
The removal of phosphorus in the sponge iron-zeolite system mainly relies on the phosphorus adsorption capacity of the sponge iron. And, additionally, the Fe 3+ released from the sponge iron can form precipitates with phosphorus, achieving chemical removal of phosphorus (Fig. 5 Process D) [25]. Moreover, the phosphorus adsorption capacity of ...
The collaborative and mutually reinforcing phosphorus removal in domestic wastewater in a sponge iron and microorganisms system was studied through a laboratory and a pilot scale experiment. The results showed that the total phosphorus concentration of the effluent of less …
The adsorption of phosphorus onto sponge iron and zeolite as a function of contact time is shown in Fig. 3. The pseudo-second-order predicted adsorption capacity at equilibrium, Q e. This was consistent with the experimental ones (Table 2). At equilibrium, the adsorption process is supposed to be in a dynamic state.
The sponge iron accounted for about 70% of the total DNF volume. The influent wastewater entered into the bottom of the DNF at different flow rates of 4 cm/h, 8 cm/h, 16 cm/h, and 32 cm/h ...
Phosphorus is one of the key elements causing lake eutrophication. This paper deals with phosphate removal by Sponge iron in batch and fixed-bed operation. Isotherm and kinetic studies are conducted. The isotherm data is described by the Freundlich and Langmuir model, while the kinetic data of adsorption is fitted by the pseudo-second-order kinetic model. …
In secondary route of steelmaking, production through induction melting furnace contributes about 31 % of India's total steel production. The main raw materials used are steel scrap, cast iron and sponge iron. In India, majority of the induction furnaces are operated using acidic lining of silica based ramming mass to produce structural steel where basicity cannot be …
The research result showed that the phosphorus removal ratio of sponge iron/sulfur composite fillers was over 95%, which was increased by 30% as compared to only sponge iron filler. In addition, the effluent TP concentration was reduced to less than 0.1 mg·L-1. The analysis of X-ray diffraction(XRD)and total iron concentration indicated that ...
The nitrogen removal performance of bioretention urgently needs to be improved, and sponge iron has great potential to address this challenge. This study reported the results of a long-term investigation on bioretention columns improved by sponge iron, examining the durability of sponge iron from nitrogen removal performance, sponge iron properties, and …
In a continuous operation experiment run for approximately 200 days, the sponge iron phosphorus removal percolation bed showed a good phosphorus removal ability. Under the condition of TP = 10 mg ...
We recently introduced a 3D-BER filled with the mixture of sponge iron and activated carbon for simultaneous nitrogen and phosphorus removal (Wang et al., 2014). Unfortunately, its denitrification efficiency was not improved as compared to the 3DBER-SAD process that can effectively deal with wastewater with low C/N ratio ( Hao et al., 2016a ).
Discover the process and expertise behind our top-notch sponge iron manufacturing at Lloyds. We specialize in producing high-quality Direct Reduced Iron (DRI) that fuels industries across India [email protected] ... Phosphorus: 0.035% to 0.050%: Carbon: 0.15% to 0.25% (0.2% avg.) Gangue content: 5.0 % avg: CORPORATE OFFICE. A2, 2ND FLOOR, MADHU ...
As a novel phosphorus recovery product, vivianite (Fe3(PO4)2·8H2O) has attracted much attention due to its enormous recycling potential and foreseeable economic value. Taking sponge iron as seed material, the effect of different reaction conditions on the recovery of phosphorus in waste activated sludge by vivianite crystallization was studied. Through single …
Sponge iron is a potential material for nitrogen and phosphate removal. To explore the performances and mechanisms of nitrogen and phosphate removal by sponge iron, a sponge iron biofilter was established. The results showed that nitrate was completely …
The experiment was carried out in a DNF using sponge iron (5–7 mm) as a filter and biofilm carrier (Figure1). The height and diameter of the sponge-iron layer was 16 cm and 8 cm, respectively. The sponge iron accounted for about 70% of the total DNF volume. The influent wastewater entered into the bottom of the DNF at different flow rates of
Adsorption of phosphorus onto sponge iron was inclined to chemical combination. Adsorption of zeolite was inclined to electrostatic attraction or ion-exchange. Phosphorus adsorptive removal is an important and efficient treatment process in constructed subsurface …
Department of Metallurgical & Materials Engineering National Institute of Technology Rourkela-769 008, Orissa, India CERTIFICATE This is to certify that the thesis entitled, "DEPHOSPHORIZATION OF STEEL PRODUCED FROM SPONGE IRON IN THE INDUCTION FURNACE" submitted by Mr. ABHILASH PUROHIT Roll No. 212MM2458 in partial fulfillment …
