Adsorptive removal of phosphorus from aqueous solution using sponge
Sponge iron and zeolite were obtained from Henan Gongyi Hualong Filter Factory, China. Sponge iron was composed of 95% Fe 2 O 3 and other oxides; the specific surface area was ⩾80 m 2 /g. While zeolite was composed of 5% Al 2 O 3 and 95% SiO 2, the specific surface area was 500–800 m 2 /g. The two adsorption substrates were …
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Characterization of dolochar wastes generated by the sponge iron …
Solid wastes generated by the metallurgical industry contribute significantly towards the enhancement of environmental pollution. The handling, utilization, and safe disposal of these solid wastes are major concerns for the world. Dolochar is such a solid waste generated by the sponge iron industry. Investigations were carried out on the …
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Sponge Iron Factory is dumping waste and causing …
Local communities of Jitusol and Bagmuri villages in West Bengal have been opposing the dumping of iron ore waste on their agricultural lands by the Rashmi Cement Limited's Sponge Iron factory. Set up in 2009, Rashmi Cement Limited factory is located in Jitusol village in Jhargram district. It was established on lands that had been …
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IRON AND STEELMAKING SLAGS: ARE THEY …
than 80%, slag composition is controlled by composition of sponge iron. In some countries, including Indonesia, steelmaking slag is categorized as hazardous and toxic waste.
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Analyses of Different Modifications Proposed for the Sponge Iron …
Prasad et al. (2013) designed a gas carrying duct and rotary drier for utilization of waste heat in a sponge iron plant, which reduced the load on the kiln by 13.15% in comparison to the existing one to produce 1 tonne DRI. Coal-based sponge iron plants have very high average heat to power ratios, often in the range of 25:1 to 31:1 (Choudhury ...
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Management of solid wastes from steelmaking and
First, the raw material is loaded into the blast furnace to obtain pig iron. The main types of solid waste generated in this step are slag, from the blast furnace, as well as sludge and dust, collected in the reactor gas system treatment. ... Portland cement manufacture: ... Production of sponge iron powder by reduction of rolling mill scale ...
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Treatment of waste cutting fluid enhanced by …
and pH 8. The COD removal efficiency of sponge iron/Fenton oxidation reached 99.2%. The same removal efficiency was obtained when reusing the effluent under the experimental conditions when the dilution multiple exceeded threefold. The process is an efficient, environmentally friendly method for treating waste cutting fluids. Keywords:
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Sponge iron's dirty growth
It found a thick layer of grey dust coating trees and pathways, and noted that the factories stored iron ore and waste in the open; these are carried away by the wind. …
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WHRB in Sponge Iron Plant
TBWES is a pioneer in supplying waste heat recovery boilers for sponge iron plants and has over 184 installations to date. SUSTAINABLE SOLUTIONS IN ENERGY AND ENVIRONMENT Thermax Group is an INR 6,123 Cr. (876 million US$) company headquartered in Pune, India. ... non-ferrous metals, cement, refinery, chemical, oil & …
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The sponge effect and carbon emission mitigation …
The total CO 2 uptake consists of four sources: cement kiln dust generated from the production stage, construction waste, in-use cement stocks, and demolition …
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Cement Plant Manufacturers | Turnkey Plant Manufacturers | Sponge Iron …
Ball Mill Manufacturers: Cement Plant. We design and supply Ball Mills for cement industry, expertise in heavy fabrication with largest workshops in Delhi NCR in India with all latest equipped and technologies required for Cement Plant for 50 TPD to 5000 TPD production. Ball Mill shell is fabricated from high quality tested plates.
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Utilization of Some of Major Steel Plant Wastes to …
The steel industry generates a significant amount of waste in the form of solid, liquid, and gas pollutants. The research aims to develop a suitable process that …
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H2 in cement: Lessons learned
H2 in cement: Lessons learned. VDZ reports on a trial using hydrogen to reach net-zero CO2 fuel emissions in the main burner. The German cement sector is one of the most sustainable in the world, with stringent emission standards and high use of alternative fuels. Over the past 30 years, the cement industry was able to reduce the …
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Waste Heat Recovery Steam Generator in Sponge Iron …
In this sponge iron plant, a rotary kiln is used to manufacture iron billets by melting iron ore by coal. In this case lot of heat energy is required for iron plant. Waste flue gas emitted from this rotary kiln will be of temperature around 700° C and above. In temperature 700° C thus eliminating the need for an external fuel for super heat
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Treatment of waste cutting fluid enhanced by combining …
The COD removal efficiency of sponge iron/Fenton oxidation reached 99.2%. The same removal efficiency was obtained when reusing the effluent under the experimental conditions when the dilution ...
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COMPRESSIVE STRENGTH AND DURABILITY …
The solid waste generated during this process is around 45 tonnes and out of which 25 tonnes is dolochar. The ... concrete using sponge iron scrap material as coarse …
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HYDROGEN SULFIDE REMOVAL FROM BIOGAS Part …
Part 3A: Iron Sponge Basics November 2017 One of the oldest technologies for the removal of hydrogen sulfide (H 2 S) from gas is the use of "Iron Sponge". A chemical-physical process, originally developed to remove H 2 S from natural and coal gas streams, iron sponge has been in use for over 140 years and more recently to remove H 2
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Sponge iron's dirty growth
But the repeat offender— Rashmi Cement sponge iron plant—did not shut. Reason: the SPCB suspended the closure order, citing the appellate authority order that allowed the factory to operate once faults are rectified. On December 18 that year, angry people reportedly set fire to some structures and vehicles at the Rashmi Cement plant.
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Properties of concrete using waste iron
At 28 days, the decrease varied from 19.62 % to 44.32 %. The decrease in compressive and flexural strength may be attributed to the strength of iron filings …
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CPCB | Central Pollution Control Board
Iron Ore Mining-Comprehensive Industry Documentation: 13-08-2007: 5.31 : 149: Industrial Pollution: Assessment of Fugitive Emissions & Development of Environmental Guidelines for Control of Fugitive Emissions in Cement Manufacturing Industries: 06-07-2007: 4.35 : 150: Industrial Pollution: Sponge Iron Industry, Comprehensive Industry ...
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Estimation of waste heat and its recovery potential …
Iron and steel and sponge iron sector in India. ... Major waste heat sources in the cement production process include the exhaust gases produced, after proclaiming …
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Profitability analysis of power generation using waste heat of sponge …
The heat of waste gas can be utilized in various ways in the sponge iron process as suggested by many investigators. Bandyopadhyay et al. [3] found coal as principal raw material for the sponge iron process and if very high amount of volatile matter (VM) coal is used, majority of VM is lost through the kiln mouth with hot waste gases. …
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Waste Heat Recovery Steam Generator in …
III. WASTE HEAT UTILIZING BY STEAM GENERATOR IN SPONGE IRON PLANT 3.1. Possibility This project is intended to portray the potential of generating power from an already existing resource like a Sponge Iron …
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ENERGY-EFFICIENT TECHNOLOGY OPTIONS FOR DIRECT …
3.0 Energy-efficient Technologies in Direct Reduction of Iron Process 17 3.1 Waste Heat Recovery for Power Generation 18 3.2 Iron Ore Preheating Rotary Kiln Using Waste Heat Recovery System 20 3.3 Coal Gasification for Partial Substitution in Rotary Kiln 22 ... The Sponge Iron Manufacturers Association (SIMA) acts as an apex body to promote and ...
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Sponge Iron
Location – Kolhapur, Maharashtra, India. 12 MW steel waste heat recovery power plant. Fuel – waste heat, coal. Boiler – AFBC, WHRB, 67 kg/cm 2, 490°, 45 TPH. 12 MW bleed condensing steam turbine. Type of condenser – air cooled condenser. Project commissioned in 2013. INDUSTRIES. Sponge Iron.
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cement from sponge iron waste
cement from sponge iron waste T22:11:00+00:00 Entrapment of chromium in cement with waste Cement matrix very often provides effective binders for immobilization of toxic heavy metals like chromium Here in this work, five different pastes were made from cement with waste material by using Portland cement and blended cements with slag, …
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Utilisation of Alternative Fuels and Raw Materials in Indian Cement …
Due to their compatibility with cement system, marble waste materials could be used in cement manufacture (i) as raw material in Portland clinker making (ii) in blended cement (iii) in the development of various building products such as marble coating, tiles and bricks (iv) as fine aggregate in concrete etc. High moisture content and ...
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Sponge Iron
Sponge Iron. Thermax is a pioneer in supplying waste heat recovery boilers for sponge iron plants and has over 150 installations to date. The boilers are designed to handle large amounts of dust from the flue gas generated in the rotary kilns. The steam generated from these boilers is typically used for power generation.
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CARBON RECOVERY FROM SPONGE IRON PLANT DUST
8 likes • 5,162 views. RADE INITIATIVE. India is the world's largest Sponge Iron producer and mostly uses the Coal based process. The down-side of this industry is that it generates significant amounts of solid waste in the form of ESP Flyash and Bag House Filter Dust. Now as this Flyash contains considerable unburned carbon ( 10% and …
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Phosphorus recovery from waste activated sludge by sponge iron …
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 …
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