Ohio has substantial lands impacted by surface mining for coal and an active steel industry. Steel industry slags have been used as liming compounds for agriculture and acid mine soil reclamation. This 3-year study evaluates slags from Ohio steel mills in greenhouse trials where these materials are compared to reagent grade CaCO 3 in their ability to improve plant growth on acid mine soil. The ...

China is the world's largest steel producer, with Iron and Steel Association estimating that country's crude production in 2022 will be 935 million tonnes [Citation1]. In 2017, metallurgical slag output of iron enterprises reached more than 440 tons, including 247 tons blast furnace 101 converter [Citation2]. After accumulation recent years, current number waste huge. By 2020, total amount indu...

steelmaking slag of mobarakeh steel company (msc) has a high iron content which makes it unsuitable for conventional slag recovery; as in cement industries. on the other hand, eaf slag in this company is almost free of zinc because of using more than 90 percent dri in the charge. therefore, removal or recovery of iron from the slag can be a suitable solution to slag recovery in this company. in...

Nowadays, cement manufacture is one of the most polluting worldwide industrial sectors. In order to reduce its CO₂ emissions, the clinker replacement by ground granulated blast-furnace slag and fly ash is becoming increasingly common. Both additions are well-studied when the hardening conditions of cementitious materials are optimum. Therefore, the main objective of this research was to study t...

environmental pollutions are in considerable attention in steel industries in iran, where mostly are located around isfahan. therefore, an investigation was done mainly on the industrial pollution and waste related to the isfahan steel complex. a plant was installed to collect the uncontrolled fumes, gases and particulates from blast furnace number ii during tapping. this plant collects about 2...

Abstract The effects of fly ash, Air Cooled Blast Furnace Slag (ACBFS), and silica fume on cement compressive strength are examined. concrete is studied by the addition air-cooled blast furnace slag fume. effect ACBFS, was investigated. content reduced 25%, 22.50%, 20%, 17.50%, respectively; ash used to replace 40%, 60% coarse aggregate; partially replaced 2.5%, 5%, 7.50% content. Contrarily, l...

Copper in discarded slag decreases the profits and copper recovery during pyrometallurgical extraction processes. The losses to can be reduced by using a settling furnace, which mechanically entrained droplets separate from under action of gravity. rate increased modifying composition and, thus, properties, are known influence rate. knowledge industrial CaO modification iron silicate with Fe/Si...