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Journal articles on the topic 'Multiple hearth furnace'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

Ramı́rez, Mercedes, Rodolfo Haber, Vı́ctor Peña, and Iván Rodrı́guez. "Fuzzy control of a multiple hearth furnace." Computers in Industry 54, no. 1 (2004): 105–13. http://dx.doi.org/10.1016/j.compind.2003.05.001.

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2

Gomez, Fuentes J. V., and S. L. Jämsä-Jounela. "Control Strategy For A Multiple Hearth Furnace." IFAC-PapersOnLine 51, no. 21 (2018): 189–94. http://dx.doi.org/10.1016/j.ifacol.2018.09.416.

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3

Sapienza, Frank, Thomas Walsh, Karla Sangrey, Louis Barry, Jane Madden, and Robert Gaudes. "Upgrade of UBWPAD's Multiple Hearth Furnace Sludge Incinerators." Proceedings of the Water Environment Federation 2007, no. 3 (2007): 880–92. http://dx.doi.org/10.2175/193864707787975642.

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4

Kukharev, Alexsey, Vyacheslav Bilousov, Ecaterina Bilousov, and Vitaly Bondarenko. "The Peculiarities of Convective Heat Transfer in Melt of a Multiple-Electrode Arc Furnace." Metals 9, no. 11 (2019): 1174. http://dx.doi.org/10.3390/met9111174.

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The modern direction of improving the technology of steel production in high-power arc furnaces is the intensification of magnetohydrodynamic effects for mixing the melt. In this article, a furnace design is proposed that contains three roof arc and three bottom electrodes, which provides the formation of additional eddy currents in the melt when the furnace is supplied with direct current or a low-frequency current. For a numerical study of the features of heat transfer in the melt of this furnace, a three-dimensional mathematical model of magnetohydrodynamic and thermal processes was used. T

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5

Shekhter, Leonid N., John E. Litz, Nimit M. Shah, and Larry F. McHugh. "Thermodynamic Modelling of Molybdenite Roasting in a Multiple-Hearth Furnace." JOM 73, no. 3 (2021): 873–80. http://dx.doi.org/10.1007/s11837-020-04549-y.

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6

Jämsä-Jounela, Sirkka-Liisa, Jose Valentin Gomez Fuentes, Jonathan Hearle, David Moseley, and Alexander Smirnov. "Control strategy for a multiple hearth furnace in kaolin production." Control Engineering Practice 81 (December 2018): 18–27. http://dx.doi.org/10.1016/j.conengprac.2018.08.020.

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7

Eskelinen, Aleksi, Alexey Zakharov, Sirkka-Liisa Jämsä-Jounela, and Jonathan Hearle. "Dynamic modeling of a multiple hearth furnace for kaolin calcination." AIChE Journal 61, no. 11 (2015): 3683–98. http://dx.doi.org/10.1002/aic.14903.

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8

Mininni, Giuseppe, Vincenzo Lotito, Roberto Passino, and Ludovico Spinosa. "Influence of sludge cake concentration on the operating variables in incineration by different types of furnaces." Water Science and Technology 38, no. 2 (1998): 71–78. http://dx.doi.org/10.2166/wst.1998.0107.

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The influence of cake concentration on fuel consumption, air requirement and flue gas production in incineration of sewage sludge is discussed. Fluidized bed (FBF), multiple hearth (MHF) and rotary kiln (RKF) furnaces are considered as alternatives together with the optional use of an afterburning chamber where exhaust gases are taken at 950°C for 2 s with an oxygen concentration of 6% by volume. It clearly appears that, if an afterburning chamber is used, and total minimum fuel consumption can be achieved at an optimal value of cake concentration (45.9% for FBF and 32.5% for MHF) when autogen

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9

He, Hongsheng, Xiaofang Lv, and Liying Huang. "Enhanced reduction of multiple layers carbon containing pellets in rotary hearth furnace." Metallurgical Research & Technology 120, no. 4 (2023): 410. http://dx.doi.org/10.1051/metal/2023054.

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To enhance the reduction of multiple layers carbon containing pellets in rotary hearth furnace (RHF) process, a three-layer bed pellets were investigated using an electric furnace by simulating the RHF process. It was found that the metallization rate of the pellets on the upper layer was greatly higher than that on the middle and lower layers due to the low reduction efficiency and heat transfer efficiency. Various types and amount of reducing agent in carbon containing pellets showed different metallization rate and shrinkage rate, which affected the reduction efficiency and heat transfer ef

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10

Gomez Fuentes, J. V., and S. L. Jämsä-Jounela. "Simplified Mechanistic Model of the Multiple Hearth Furnace for Control Development." SNE Simulation Notes Europe 28, no. 3 (2018): 97–100. http://dx.doi.org/10.11128/sne.28.sn.10426.

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11

Lyaya, Edwinus C., Shadreck Chirikure, Philip E. Janney, and Thilo Rehren. "A Technology of Multiple Smelting Furnaces per Termite Mound: Iron Production in Chongwe, Lusaka, Zambia." Journal of African Archaeology 18, no. 1 (2020): 67–85. http://dx.doi.org/10.1163/21915784-20200004.

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Abstract With exception of Maluma (1979) and Musambachime (2016, 2017), there have been no archaeometallurgical publications on the technology and culture of iron production in Zambia. This paper presents archaeological and archaeometallurgical evidence of a technology of iron production in Chongwe in terms of spatial organization, the process of metal production (either a three-stage process involving smelting in relatively tall furnaces, refining in miniature (vintengwe) furnaces, and smithing on a hearth or a two-stage process involving smelting and smithing), furnace air supply mechanisms,

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12

Nuss, Stephen, David Persinger, Todd Brunner, and John Netzel. "Performance of Instrumentation and Control Upgrades to Multiple Hearth Furnace in Anchorage, Alaska." Proceedings of the Water Environment Federation 2008, no. 11 (2008): 5426–33. http://dx.doi.org/10.2175/193864708788804766.

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13

Hilse, Nikoline, Max Kriegeskorte, Jonas Fischer, et al. "Discrete Element Simulations of Contact Heat Transfer on a Batch-Operated Single Floor of a Multiple Hearth Furnace." Processes 11, no. 12 (2023): 3257. http://dx.doi.org/10.3390/pr11123257.

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The multiple hearth furnace is a common industrial reactor for the thermal treatment of particulate material. The present contribution concentrates on a numerical analysis of contact heat transfer on a batch-operated single floor of a multiple hearth furnace employing the Discrete Element Method (DEM). The particles are agitated on an electrically heated circular floor by a single rotating rabble arm equipped with three flat blades. Blade angles have been varied from 0° to 90°. The DEM simulations (particle mechanics and contact heat transfer) were validated against experimental data. The tran

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14

Schmidt, Randy, Gail Chesler, Don Berger, and Eugene W. Waltz. "OPTIMIZATION OF MULTIPLE HEARTH FURNACE OPERATIONS TO MINIMIZE CYANIDE FORMATION WHEN COMBUSTING DEWATERED SEWAGE SLUDGE." Proceedings of the Water Environment Federation 2000, no. 14 (2000): 213–32. http://dx.doi.org/10.2175/193864700784607244.

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15

Hu, Tu, Xuewei Lv, and Chenguang Bai. "Enhanced Reduction of Coal-Containing Titanomagnetite Concentrates Briquette with Multiple Layers in Rotary Hearth Furnace." steel research international 87, no. 4 (2015): 494–500. http://dx.doi.org/10.1002/srin.201500119.

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16

Gubaidulin, R. G., and A. K. Tingaev. "Study of the Reasons of Emergency Shutdown of Multiple Hearth Furnace for Production of the Magnesia Binding Material." Procedia Engineering 150 (2016): 1776–82. http://dx.doi.org/10.1016/j.proeng.2016.07.170.

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17

Hoffelner, F., M. A. Zarl, and J. Schenk. "Development of a new laboratory-scale reduction facility for the hydrogen plasma smelting reduction of iron ore based on a multi-electrode arc furnace concept." IOP Conference Series: Materials Science and Engineering 1309, no. 1 (2024): 012012. http://dx.doi.org/10.1088/1757-899x/1309/1/012012.

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Abstract Steel production accounts for a significant share of industrial CO2 emissions. The HPSR process is a possible alternative to reduce these emissions massively if not completely negate them. In principle, Fe-ore is reduced at high temperatures in the plasma of a DC electric arc. hydrogen reacts with the oxidic melt at the gas-liquid interface. Various concepts for the hydrogen plasma reduction of iron ore have been investigated, but the process technology has not yet surpassed the demonstration scale (TRL5). Experimental setups for charging masses from a few grams to a few hundred kilog

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18

Ranjib, K. Chowdhury, та M. S. Krupashankara. "Using high alumina insulating materials for 1600ᴼc in compound heating resistance furnace to achieve maximum thermal efficiency". i-manager's Journal on Material Science 9, № 4 (2022): 28. http://dx.doi.org/10.26634/jms.9.4.18561.

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The present study investigates the performance of a new generation mineral with high alumina (Al2O3), very low thermal conductivity (K) and high density, which are necessary insulation properties, sandwiched to achieve effective insulation results, in a compound heating resistance furnace at 1600°C. Two heating elements SiC and MoSi2 are used for long hours with a number of pre-set programmable cycles of operations. Zirconium tiles, mullite tiles, zirconium modules are being used in this experiment. Air, a bad conductor of heat transfer, is also used in a gap of 20 mm between two different til

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19

Cappel, Jürgen, Frank Ahrenhold, Martin W. Egger, Herbert Hiebler, and Johannes Schenk. "70 Years of LD-Steelmaking—Quo Vadis?" Metals 12, no. 6 (2022): 912. http://dx.doi.org/10.3390/met12060912.

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Basic Oxygen Furnace (BOF) steelmaking is, worldwide, the most frequently applied process. According to the world steel organization statistical report, 2021, it saw a total production share of 73.2%, or 1371.2 million tons per year of the world steel production in 2020. The rest is produced in Electric Arc Furnace (EAF)-based steel mills (26.3%), and only a very few open-hearth and induction furnace-based steel mills. The BOF technology remains the leading technology applied based on its undoubted advantages in productivity and liquid steel composition control. The BOF technology started as t

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20

Deng, Yong, Ran Liu, Tao Li, Yanjia Gao, Kuo Yao, and Laixin Wang. "Dynamic analysis of liquid permeability in the dripping zone of blast furnace and reaction behavior at the slag-coke interface." Metallurgical Research & Technology 121, no. 2 (2024): 218. http://dx.doi.org/10.1051/metal/2024019.

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The dripping zone connects the cohesive zone and the hearth, it is one of the key areas of the blast furnace (BF). This study aims to explore the mechanism of the dripping process in BF. The dripping experiments under different conditions were carried out. Dynamics of liquid permeability in the dripping zone was analyzed, the reaction behavior at the slag-coke interface was investigated, and the consumption of coke in the dripping zone was clarified. The results show that: The retention ratio increases with the increase of Al2O3 content. The increase in retention ratio is related to the viscos

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21

Ito, Tomiya. "Sludge Incineration Process of Kyoto City – The Employment and Heat Balance of the Step Grate Stoker Furnace." Water Science and Technology 23, no. 10-12 (1991): 1763–72. http://dx.doi.org/10.2166/wst.1991.0631.

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Kyoto City, an ancient city of international tourism, has been actively constructing its public sewerage system as one of the most important policies of the city. As of April, 1989, 79.6% of the urbanization promotion area of the city has been sewered. The fully completed sewerage system will be established in 1994, the 1200th anniversary of the founding of the city as the ancient Heian capital of Japan. However, the increase of the sewered ratio effects a steady increase in the influent volume of wastewater. Due to the inland location of the city, sludge produced in the wastewater treatment p

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22

Liu, Jiangang, Lu Wang, and Guohuan Wu. "Sintering Behavior of Molybdenite Concentrate During Oxidation Roasting Process in Air Atmosphere: Influences of Roasting Temperature and K Content." Molecules 29, no. 21 (2024): 5183. http://dx.doi.org/10.3390/molecules29215183.

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Sintering is a common phenomenon, which often takes place during the oxidation roasting process of molybdenite concentrate in multiple-hearth furnaces. The occurrence of sintering phenomena has detrimental effects on the product quality and the service life of the furnace. In this work, the influence of two key factors (roasting temperature and K content) on the sintering behavior is investigated using molybdenite concentrate as the raw material. Different technologies such as XRD, FESEM-EDS, and phase diagrams are adopted to analyze the experimental data. The results show that the higher the

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23

Eskelinen, Aleksi, Alexey Zakharov, Jonathan Hearle, and Sirkka-Liisa Jämsä-Jounela. "Dynamic modelling of a multiple hearth furnace for kaolin calcination with a sensitivity analysis with respect to reaction rates**The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2013-2016) under Grant Agreement No. 310645." IFAC-PapersOnLine 49, no. 20 (2016): 196–201. http://dx.doi.org/10.1016/j.ifacol.2016.10.120.

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24

Porter, Joseph, William Lill, and William Mansfield. "RENEWING MULTIPLE HEARTH FURNACES: THE ATLANTA EXPERIENCE." Proceedings of the Water Environment Federation 2002, no. 3 (2002): 548–58. http://dx.doi.org/10.2175/193864702785302159.

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25

Shirodkar, Nikhil M., and Allen Baturay. "MAXIMIZING INCINERATION RATES IN MULTIPLE HEARTH FURNACES." Proceedings of the Water Environment Federation 2003, no. 1 (2003): 697–703. http://dx.doi.org/10.2175/193864703784292421.

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26

Matthews, Manuel, Robert Herbick, and Ky Dangtran. "Replacement of the Multiple Hearth Furnaces by the Fluid Bed Furnaces - The R.L. Sutton WRF Experience." Proceedings of the Water Environment Federation 2009, no. 3 (2009): 55–64. http://dx.doi.org/10.2175/193864709793846114.

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27

Decharat, Somsiri. "Chromium Exposure and Hygienic Behaviors in Printing Workers in Southern Thailand." Journal of Toxicology 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/607435.

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Objectives.The main objective of this study was to assess the chromium exposure levels in printing workers. The study evaluated the airborne, serum, and urinary chromium levels and determines any correlation between level of chromium in specimen and airborne chromium levels.Material and Methods.A cross-sectional study was conducted with 75 exposed and 75 matched nonexposed subjects. Air breathing zone was measured by furnace atomic absorption spectrophotometer. Serum and urine samples were collected to determine chromium levels by graphite furnaces atomic absorption spectrometer chromium analy

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28

Chilson, Stanley J., and William Karch. "Two-Stage Thermal oxidization: A Cost-Effective, Environmentally Sound Alternative for BioEnergy Recovery from Multiple Hearth Furnaces." Proceedings of the Water Environment Federation 2017, no. 8 (2017): 3907–17. http://dx.doi.org/10.2175/193864717822158242.

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29

He, Jin Zhe, Qiang Feng, and Pei Long Sun. "Health Risk Assessment of Six Heavy Metals in Different Sources of Honey Consumed in China." Advanced Materials Research 680 (April 2013): 86–93. http://dx.doi.org/10.4028/www.scientific.net/amr.680.86.

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As the consumption of honey is booming because of its multiple health-promoting effects, the possible health risks resulting from long-term exposure to metals contained in this honey need to be evaluated. The concentrations of heavy metals (Pb, Cd, Cu, As,Hg and Zn) in three sources of honeys collected from China, were determined by flame atomic absorption spectrophotometry (FAAS), graphite furnace atomic absorption spectrometry (GF-AAS) and hydride generation-atomic fluorescence spectrometry (HG-AFS) after microwave-assisted digestion. The rangs obtained for the element analyzed in ug kg-1 we

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30

Donawa, Wendy. "Poetry and process: Glad in the Ruthless Furnance / Poésie et procédé : être joyeux dans l’impitoyable fournaise." Canadian Review of Art Education / Revue canadienne d’éducation artistique 45, no. 1 (2018): 12–22. http://dx.doi.org/10.26443/crae.v45i1.47.

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Abstract: Poets use sensory imagery and perception, memory and experience, free association and contemplation to join psychic and material worlds, and to honour both emotional and discursive truths. Through multiple drafts, free-writing and research, the author unpacks her own reflections and poems to demonstrate the process by which intuition and personal insight are crafted for public understanding. This poetic process suggests that scholarly discourses of the arts and the humanities need not always fall into the quantitative/qualitative binary, but that both heart and mind are required to s

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31

Linhart, C., D. Davidson, S. Pathmanathan, T. Kamaladas, and C. Exley. "Aluminium in Brain Tissue in Non-neurodegenerative/Non-neurodevelopmental Disease: A Comparison with Multiple Sclerosis." Exposure and Health 12, no. 4 (2020): 863–68. http://dx.doi.org/10.1007/s12403-020-00346-9.

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AbstractHuman exposure to aluminium is a burgeoning issue. The brain is a sink for systemically available aluminium and a putative target of neurotoxicity. An increasing number of studies continue to confirm the presence of aluminium in human brain tissue though primarily in relation to donors who have died of a neurodegenerative or neurodevelopmental disorder. Herein, we have measured aluminium in brain tissue in donors who died of a specific disease or condition though without showing any neurodegeneration. The donors were diagnosed as not suffering from multiple sclerosis. Herein, these nov

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32

Fu, Chen, Cong Chen, and Zhitao Fu. "Seasonal Spatiotemporal Dynamics and Gradients of the Urban Heat Island Effect in Subtropical Furnace Megacity." Sustainability 17, no. 7 (2025): 3238. https://doi.org/10.3390/su17073238.

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Urban heat island (UHI) effect significantly influences the urban sustainability and health of cities and varies seasonally. However, spring and autumn have received less attention. Furthermore, research on long-term seasonal UHI changes and impacts is insufficient. This study examines the seasonal spatiotemporal dynamics and gradient characteristics of UHI in spring, summer, autumn, and winter in Changsha, a typical subtropical “furnace city” from 2006 to 2022. (1) Spatiotemporal dynamics: The high-temperature UHI (relatively high-temperature zone and high-temperature zone) range expands most

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33

Al-Kadimy, Ahmed Majeed, and Zohul Abdul Hadi Hamza. "OPTIMIZATION DESIGN OF GRANULAR ACTIVAED CARBON USING GENETIC ALGORITHM." Kufa Journal of Engineering 6, no. 1 (2021): 45–56. http://dx.doi.org/10.30572/2018/kje/611314.

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Integrated advanced wastewater treatment provides important fundamental solutions to problems associated with water scarcity prevailing in arid and semi arid climatic regions. This was accomplished through treated water with specific specification and characteristics suitable to be used for agricultural, domestic, and industrial purposes. This study is concerned with the use of genetic algorithm procedure for the optimum design of integrated advance wastewater treatment units, with their various types and characteristics. The aim of optimum wastewater treatment units design is to attain optimu

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34

Facchini, Francesco, Luigi Ranieri, and Micaela Vitti. "A Neural Network Model for Decision-Making with Application in Sewage Sludge Management." Applied Sciences 11, no. 12 (2021): 5434. http://dx.doi.org/10.3390/app11125434.

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Wastewater treatment (WWT) is a foremost challenge for maintaining the health of ecosystems and human beings; the waste products of the water-treatment process can be a problem or an opportunity. The sewage sludge (SS) produced during sewage treatment can be considered a waste to be disposed of in a landfill or as a source for obtaining raw material to be used as a fertilizer, building material, or alternative fuel source suitable for co-incineration in a high-temperature furnace. To this concern, this study’s purpose consisted of developing a decision model, supported by an Artificial Neural

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35

Kuo, Nae-Wen, Chi-Ren Lan, and Z. B. Alfassi. "In situ preconcentration of trace metals in high purity water onto graphite tube by multiple injections followed by graphite furnace atomic absorption spectrometry." Journal of Radioanalytical and Nuclear Chemistry Articles 172, no. 1 (1993): 117–23. http://dx.doi.org/10.1007/bf02040668.

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36

Yao, Jun, Songcheng Zhou, Ling Wang, and Xianxia Zhang. "An Improved Multi-Objective Adaptive Human Learning Optimization Algorithm and Its Application in Optimizing Formulation Schemes for Rotary Hearth Furnaces." Applied Sciences 15, no. 12 (2025): 6526. https://doi.org/10.3390/app15126526.

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This study develops a complex, multivariable optimization framework for raw material formulation in rotary hearth furnaces (RHF), addressing the inherent coupling effects among compositional control, operational stability, and resource efficiency. Based on an in-depth analysis of the multiple constraints that must be balanced in the blending process, this paper constructs a multi-objective optimization mathematical model incorporating elemental content, scheme similarity, a continuous operation time, and start–stop switching. An improved multi-objective adaptive human learning optimization alg

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37

Hussein, Mohammed, Rajesh Gundlapalle, M. Kiran Kumar, Sorabh Lakhanpal, Ashish Kumar Parashar, and Abhishek Kaushik. "Advancing Aluminum-Based Composite *Manufacturing: Leveraging TiO2 Reinforcement through Stir Casting Technique." E3S Web of Conferences 507 (2024): 01042. http://dx.doi.org/10.1051/e3sconf/202450701042.

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This study explores the advancement of aluminum-based composite manufacturing through the integration of titanium dioxide (TiO2) reinforcement using the stir casting technique. Aluminum alloy served as the matrix material, combined with ceramic reinforcement particles, melted at approximately 700°C within a muffle furnace. Through continuous stirring at 400 rpm for 10 minutes, ceramic particles were uniformly dispersed into the molten alloy, crucial for enhancing composite properties. The incorporation of 6.5% TiO2 via stir casting resulted in significant enhancements across multiple mechanica

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38

Salam Abood, Ahmed, Jisha P K, G. Karuna, Alok Jain, Radha Goel, and Pradeep Kumar Chandra. "Advancing Aluminum-Based Composites with Fly Ash and SiC Reinforcement through Stir Casting." E3S Web of Conferences 507 (2024): 01050. http://dx.doi.org/10.1051/e3sconf/202450701050.

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This study explores the advancement of aluminum-based composites through the integration of fly ash and silicon carbide (SiC) reinforcement via stir casting. The process involves melting the alloy in a crucible within a muffle furnace at 700°C, gradually introducing fly ash and SiC particles while stirring at 450 rpm for 12 minutes to ensure uniform dispersion. The addition of 5% SiC and 2.5% fly ash led to significant improvements in multiple mechanical properties.Tensile strength experienced a remarkable enhancement of approximately 19.56%, while hardness showcased a substantial increase of

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39

Koundinya, Vadapalli, and Bodapati Gnana Rahul. "Stabilization of alluvial soil with fly ash and GGBS as a subgrade for pavement construction." E3S Web of Conferences 391 (2023): 01026. http://dx.doi.org/10.1051/e3sconf/202339101026.

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With the significant increase of construction activities in the road sector, the scenario has awakened the need for typical good quality soils for subgrade construction which are deficient in supply at many locations for numerous reasons. In this research activity, comprehensive study in the laboratory has been carried out to examine the use of fly ash and GGBS (Ground Granulated Blast Furnace Slag) to stabilize alluvial soils. Multiple influential properties such as UCS, CBR, Permeability, swelling potential, Compaction characteristics, and Atterberg limits were found for control samples and

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40

Rocha, Jose Marcos Vieira, Valeria Barbosa de Souza, Patricia Costa Panunto, et al. "In vitro and in vivo acute toxicity of a novel citrate-coated magnetite nanoparticle." PLOS ONE 17, no. 11 (2022): e0277396. http://dx.doi.org/10.1371/journal.pone.0277396.

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Magnetic nanoparticles (MNps) have become powerful tools for multiple biomedical applications such as hyperthermia drivers, magnetic resonance imaging (MRI) vectors, as well as drug-delivery systems. However, their toxic effects on human health have not yet been fully elucidated, especially in view of their great diversity of surface modifications and functionalizations. Citrate-coating of MNps often results in increased hydrophilicity, which may positively impact their performance as drug-delivery systems. Nonetheless, the consequences on the intrinsic toxicity of such MNps are unpredictable.

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41

Reddy, Puli Mohith Vishnuvardhan, Azmath Unnisa, and Rekha Mirle. "Flower Ash: A Sustainable Byproduct for Environmental and Industrial Applications." Ecology, Environment and Conservation 31, April Suppl. Issue (2025): 259–63. https://doi.org/10.53550/eec.2025.v31i03s.043.

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Rapid urbanization, population growth, and industrial expansion have made managing municipal solid waste a global challenge, particularly in India, the inefficiency of decentralized waste management systems has intensified the issue. About 40%–50% of India’s solid waste is organic, much of it generated by cultural, social, and religious activities, contributing to pollution and health risks. A significant portion of this waste is flower waste, which is discarded after single-use in rituals and events, amounting to around 4.74 × 106 tons per day. Flower waste can be transformed into a range of

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42

Manandhar, Amar B., Durga B. Karanjit, Govinda Tiwari, et al. "Experiences in Improving Efficiency of Energy and Other Resources in Metal Industries in Nepal." Journal of the Institute of Engineering 15, no. 3 (2020): 227–33. http://dx.doi.org/10.3126/jie.v15i3.32186.

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The construction sector uses various metals like steel (for frames, reinforced concrete), iron (wrought iron for beams, trusses, girders), aluminium (ceiling and walls, window frames, HVAC systems etc.) and copper (cladding, electrical wiring, oil & gas lines). Due to increasing pressure on various resources like energy, chemicals and raw materials, economic edge can be sustained only through high resource efficiency. Adopting resource efficient cleaner production (RECP) measures will improve economic and environmental performance, including reducing greenhouse gas emissions; in turn, this

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43

Sanyaolu, V. T., O. Fadayini, and T. T. Oshin. "Comparative assessment of biosorption potential of non-treated and acid-treated activated carbon produced from maize cob for wastewater treatment." Nigerian Journal of Technology 41, no. 3 (2022): 603–12. http://dx.doi.org/10.4314/njt.v41i3.21.

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Humans and the environment are both concerned about contaminated drinking water. One of the most dangerous constituents in wastewater is heavy metals. The removal of these contaminants from the ecosystem is still a challenge. Some of these heavy metals have been toxic concentrations in human and livestock drinking water. As a result, the goal of this study was to compare the adsorption potential of non-treated and acid-treated activated carbon generated from maize cob in the treatment of wastewater. Fresh maize cobs were air-dried and oven-dried at 255 °C for 9 hours after being cleaned in dis

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44

Datta, Y. "How America Became an Economic Powerhouse on the Backs of African-American Slaves and Native Americans." Journal of Economics and Public Finance 7, no. 5 (2021): p121. http://dx.doi.org/10.22158/jepf.v7n5p121.

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The objective of this paper is to make the case that the United States became an economic super-power in the nineteenth century on the backs of African-American slaves and Native Americans.It was in 1619, when Jamestown colonists bought 20-30 slaves from English pirates. The paper starts with ‘The 1619 Project’ whose objective is to place the consequences of slavery--and the contributions of black Americans--at the very center of the story we tell ourselves about who we are as a nation.Slavery was common in all thirteen colonies, and at-least twelve Presidents owned slaves. The enslaved people

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Md, Owahedur Rahman, and Bilal Tariq Muhammad. "The Causes and Effects and Control Systems of Industrial Air Pollution." North American Academic Research 2, no. 6 (2019): 54–68. https://doi.org/10.5281/zenodo.3245566.

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<strong>Introduction</strong> Air pollution is the presentation into the atmosphere of synthetics, particulates, or organic materials that cause uneasiness, infection, or demise to people, harm other living life forms, for example, sustenance harvests, or harm the normal environment or constructed environment.A substance noticeable all around that can be unfriendly to people and the earth is known as an air poison. Poisons can be as strong particles, fluid beads, or gases. Likewise, they might be normal or man-made. Poisons can be named essential or optional. Generally, essential toxins are le

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Zhou, Guanwei, Weiqiang Liu, Yaowei Yu, and Henrik Saxén. "Advancing Blast Furnace Thermal State Prediction: A Data‐Driven Approach Using Thermocouple Integration and Multimodal Modeling." steel research international, February 3, 2025. https://doi.org/10.1002/srin.202400896.

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This study develops a data‐driven framework to predict the thermal state of blast furnaces using feature fusion from thermocouple data and spatial temperature distribution. The article proposes a hybrid framework based on multimodal integration and clustering algorithms, utilizing data extracted from thermocouples and the temperature distribution features around the furnace hearth. Through these fused features, multiple ensemble models are constructed to predict the thermal state of the blast furnace, with a focus on the thermocouple readings at the hearth. This method enhances understanding o

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Góngora, Deynier Montero, Jo Van Caneghem, Dries Haeseldonckx, Ever Góngora Leyva, Mercedes Ramírez Mendoza, and Abhishek Dutta. "Post-combustion artificial neural network modeling of nickel-producing multiple hearth furnace." International Journal of Chemical Reactor Engineering 18, no. 7 (2020). http://dx.doi.org/10.1515/ijcre-2019-0191.

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AbstractIn a nickel-producing multiple hearth furnace, there is a problem associated to the automatic operation of the temperature control loops in two of the hearths, since the same flow of air is split into two branches. A neural model of the post-combustion sub-process is built and served to increase the process efficiency of the industrial furnace. Data was taken for a three-months operating time period to identify the main variables characterizing the process and a model of multilayer perceptron type is built. For the validation of this model, process data from a four-months operating tim

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Góngora, Deynier Montero. "Statistical Model of The Postcombustion Subprocess in an Oven of Multiple Hearth Furnace." Advances in Robotics & Mechanical Engineering 2, no. 2 (2019). http://dx.doi.org/10.32474/arme.2019.02.000133.

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Lacombe, Elie, Muriel Marchand, Capucine Dupont, Denis Maréchal, and Thierry Melkior. "Residence time distribution of wood chips in a semi-industrial multiple hearth furnace using RFID tracers." Particuology, April 2024. http://dx.doi.org/10.1016/j.partic.2024.03.009.

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Winchell, Lloyd J., Martha J. M. Wells, John J. Ross, et al. "Fate of perfluoroalkyl and polyfluoroalkyl substances (PFAS) through two full‐scale wastewater sludge incinerators." Water Environment Research 96, no. 3 (2024). http://dx.doi.org/10.1002/wer.11009.

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AbstractPerfluoroalkyl and polyfluoroalkyl substances (PFAS) are an emerging issue in wastewater treatment. High‐temperature thermal processes, incineration being time‐tested, offer the opportunity to destroy and change the composition of PFAS. The fate of PFAS has been documented through wastewater sludge incinerators, including a multiple hearth furnace (MHF) and a fluidized bed furnace (FBF). The dewatered wastewater sludge feedstock averaged 247‐ and 1280‐μmol targeted PFAS per sample run in MHF and FBF feed, respectively. Stack emissions (reportable for all targeted PFAS from MHF only) av

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