Results 141 to 150 of about 1,356 (186)
Effect of MLSS on the Denitrifying Dephosphorization Process
Advanced Materials Research, 2011 In order to investigate the effect of MLSS on the denitrifying dephosphorization process, a lab experiment was carried out by using an anaerobic/anoxic sequencing batch reactor (A2SBR) for a long time. The results showed that when MLSS was maintained at 2500-3500mg/L, removal efficiency of PO43--P was kept high value and it was higher than 90%.
Lan He Zhang +3 more
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DEPHOSPHORIZATION OF GOETHITE ORE
, 2020 With the depletion of high-grade and low phosphorus iron ore reserves, the extensive goethite ores containing high phosphorus become more attractive. However, there is a lack of effective and economic technologies for removing phosphorus from goethite ...
Zhang, Long, Long Zhang
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The problem of dephosphorization using waste recycling
Environmental Science and Pollution Research, 2017The article considers optimizing methods for wastewater treatment systems. Nutrients (nitrogen and phosphorus) are discharged from the river basin of the northwest Russia. Disruption of ecological safety and healthy state of water basins takes place when excess amount of nitrogen and phosphorus is discharged from wastewater.
Elena, Smirnova, Mikhail, Alexeev
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Problems of dephosphorization during steelmaking
Russian Metallurgy (Metally), 2013The thermodynamics of tapping, dephosphorization, and out-of-furnace treatment of steel in a ladle and the related phosphorus balance are considered, and the main technological and thermodynamic parameters for decreasing the metal dephosphorization are found.
I. K. Ibraev, O. T. Ibraeva
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Practical Research on Dephosphorization in Converter
Applied Mechanics and Materials, 2012The situations of smelting SPHD were analyzed for 150t converter in TangSteel. Based on the analysis of dephosphorization process and the thermodynamic conditions in converter, the operation of dephosphorization was optimized. The industrial tests for dephosphorization were carried out, and the results were analyzed.
Jian Sheng Li +5 more
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Dephosphorization of Mn‐based alloys
Steel Research, 1992The critical oxygen partial potential of dephosphorization in liquid Mn‐base alloys under oxidizing or reducing conditions has been determined by thermodynamic analysis. Under oxidizing conditions, thermodynamic conditions to achieve dephosphorization and avoid manganese oxidizing were given.
Zhongting Ma +3 more
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Journal of Iron and Steel Research International, 2019
Industrial experiments were carried out to investigate the effect of the direct charging of hot recycled slag (DCHRS) on hot metal pretreatment dephosphorization in a dephosphorization furnace. The bulk compositions of semi-steel and slag show that a better dephosphorization effect could be achieved by applying the DCHRS process in the ...
Xue-feng Bai +3 more
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Industrial experiments were carried out to investigate the effect of the direct charging of hot recycled slag (DCHRS) on hot metal pretreatment dephosphorization in a dephosphorization furnace. The bulk compositions of semi-steel and slag show that a better dephosphorization effect could be achieved by applying the DCHRS process in the ...
Xue-feng Bai +3 more
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Study on the Dephosphorization of Semi-Steel in Ladle
Advanced Materials Research, 2014Combined with converter semi-steel component of Chengde steel plant, the main components of 100t ladle dephosphorization slag were calculated to propose the initial ratio of dephosphorization slag composition. The dephosphorization slag composition was then further improved by induction furnace dephosphorization. Analysis of dephosphorization rules has
Yong Hui Han +4 more
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Russian Metallurgy (Metally), 2013
A thermodynamic computer simulation of the oxidation potential of a gas-melt-ceramic (80 wt% MgO, 20 wt % Al2O3) system under vacuum induction furnace conditions is used to find that the major contribution to this potential at temperatures ranging from 1673 to 2273 K is made by a nickel melt with additives of nickel protoxide.
V. T. Burtsev +3 more
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A thermodynamic computer simulation of the oxidation potential of a gas-melt-ceramic (80 wt% MgO, 20 wt % Al2O3) system under vacuum induction furnace conditions is used to find that the major contribution to this potential at temperatures ranging from 1673 to 2273 K is made by a nickel melt with additives of nickel protoxide.
V. T. Burtsev +3 more
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Dephosphorization in the early stage of converter steelmaking
Ironmaking & Steelmaking, 2019This study focuses on understanding the dephosphorization behaviors in converter steelmaking process under different situations.
Minglin Wang, Wenyuan Yang
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