The treating process of the incinerated and crushed slag includes feeding the slag into the material bin, sieving to separate into several kinds of material of different granular sizes, reusing the coarse grain material according to their property, magnetically separating the middle grain material to eliminate iron metal matter, crushing and returning to the balter, water washing the …
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The wash water was from the previous concrete washing water and poured into the plastic bucket. The material of SS about 1% and 2% was poured into the concrete wash water, stirred for 2 minutes, and stored overnight. The mixing water was from 50% wash water and 50% potable water. The investigation in this study refers to The ASTM standard C-192.
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In view of this, the present invention designs the rinsing type treatment of slag, and avoid dust from flying to provide a kind of, avoid lime contaminated soil and underground water source,...
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The resource recovery process of the fly ash water washing slag adopted by the invention is characterized in that fly ash is washed by water to prepare slurry, and then the slurry and solid slag are obtained by pumping filtration, wherein the water washing liquid is evaporated and crystallized by an MVR evaporator, and is centrifugally separated to obtain sylvite and mixed …
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. slag washing water ; washing slag water. water of the carbide slag. Sediment water. wateringmethod. granulating slag ; water granulated slag ; water slag. Slag granulation system. slag water rate. water slurry. slag sluicing system
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Request PDF | Overall Utilization of Ti-Extraction Blast Furnace Slag as a Raw Building Material: Removal of Chlorine from Slag by Water Washing and Sintering | Ti-extraction blast furnace slag ...
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Water washing was a pre-treatment method for MSWI FA (Li et al., 2021). ... This study introduced a novel MSWI FA–blast furnace slag–desulfurization gypsum-based binder (FBCM) as an innovative solution for hazardous waste immobilization and sustainable waste management. The results revealed that a high MSWI FA content (40 ∼ 60 %) reduced ...
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The present invention relates to a water-washing treating method for slag, which selects different specifications of slag by dumping the slag form received hopper to a water-washing...
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Ti-extraction blast furnace slag (TEBFS) is the metallurgical solid waste generated during titanium extraction by high-temperature carbonization and low-temperature selective chlorination process in China. The high chlorine content in slag restricts its large-scale utilization in engineering materials. To solve this problem, this study comprehensively evaluated the …
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The effects of CaO, Al2O3, and MgO additions, singly or in combination, on the copper solubility, the Fe3VFe2+ ratio in slag, and on the minor-element behavior of silica-saturated iron silicate ...
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The method of water washing has an obvious dechlorination effect on TEBFS. With increasing L/S ratio, washing temperature, and washing time, the dechlorination efficiency …
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Wash water, municipal solid waste incineration (MSWI) fly ash, and propylene (PP) fibers were employed simultaneously to produce self-compacting repair mortar (SCRM). Different SCRM mixtures were utilized, incorporating 35, 70, and 140 kg/m3 of MSWI fly ash, along with 0.1% of PP fibers. The research focused on investigating the workability, …
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water. When the molten slag comes in contact with the quenching water, the ash fractures instantly, crystallizes, and forms pellets. High-pressure water jets wash the boiler slag from the hopper into a sluiceway which then conveys the ash to collection basins for dewatering, possible crushing or screening, and stockpiling (Moulton 1973).
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Slag washing water generally comprises numerous corrosive chemicals, because the binary power cycle is used to recover the waste heat from slag washing water. In this cycle, slag washing water never contacts with the system components except for the heat exchanger and the damaging effects of these chemicals can be prevented by binary power ...
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The black powder was mixed with different amount of sulfuric acid varying the mass to volume ratio of black powder to sulfuric acid from 1 to 0.1–0.6. The mixture was homogenized and kept in a furnace at desired temperature (750 °C) for certain time period to transform the water insoluble phase of lithium oxide into its water soluble species.
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Universal access to safe drinking water, sanitation, and hygiene has the potential to greatly reduce global disease burden. Investing in water and sanitation interventions brings economic, environmental, quality of life, and health benefits. WASH also plays a key role in improving nutritional outcomes, particularly among children.
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The aim of this research was to investigate zinc removal from submerged arc furnace flue gas wash water with steel slag and polymer treatment. The current treatment for the submerged arc furnace flue gas wash water is treatment with polymer only which aids in the settling of particulate zinc. Howeve …
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In addition, the XRD pattern of water-washing slag at 80 °C can be seen an obviously convex peak at about 33°, which indicated that the slag was amorphous. In addition, with the decrease of washing temperature, the crystallinity of washing slag decreases, the FWHM increases, the grain size becomes smaller, and the larger the contact area with ...
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This study involved the washing treatment of MSWI FA to regulate its soluble salt and heavy metal content, followed by preparing MSWI fly ash-bottom ash slag-based clinker …
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Previous studies indicates that the most common method of preparing FASCM is water washing alone [16] or in conjunction with other pretreatment techniques, such as carbonation [17], [18], mechanochemical treatment [19], electrodialytic remediation [20].The 10–15 % cement replacement of FASCMs prepared by aforementioned approaches is preferable, …
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Filter press-water washing and carbide slag (CS) were utilized for recycling manganese, ensuring depth harmless and dispersion of electrolytic manganese residue (EMR).
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The study comprised the following: (1) characterization of MSWI fly ash and washed fly ash, (2) extraction efficiency of water washing, (3) speciation in the MSWI fly ash and slag, …
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Filter press-water washing and carbide slag (CS) were utilized for recycling manganese, ensuring depth harmless and dispersion of electrolytic manganese residue (EMR). Mn 2+ recover profit, pH value, leaching concentration and particle sizes of treated water-washed EMR (TWEMR), as well as the microstructure and composition changes during disposal process was explored.
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to obtain water-washing neutralization slag. However, this process suers from low rare earth yields due to high rare earth residues of 5–7% in water-washing neutralization slag. Moreover, there is a huge stockpile of water-washing neu-tralization slag, which is in urgent need of secondary extrac-tion of rare earth resources.
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Water washing was a pre-treatment method for MSWI FA ... The binding energy of Si 2p in the glass phase of slag-based cementitious materials typically fell within the range of approximately 101.0–102.5 eV (Cao et al., 2020), and its magnitude represented the degree of polymerization of silicate minerals ...
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The aim of this research was to investigate zinc removal from submerged arc furnace flue gas wash water with steel slag and polymer treatment. The current treatment for the submerged arc furnace ...
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P302+P352+ P313- IF ON SKIN: Wash with plenty of water. Get medical advice/attention. P304+P340 - IF INHALED: Remove person to fresh air and keep at rest in a position ... Slag and cement reacts with water to form silicates and calcium hydroxide. Silicates react with powerful oxidizers such as fluorine, boron trifluoride, chlorine trifluoride ...
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Recycling phosphogypsum (PG) for cemented paste backfill (CPB) has been widely used at phosphate mines in China. However, the impurities in PG prolong the setting time and reduce the uniaxial compressive strength (UCS), limiting the engineering application of PG. This paper aims to investigate the feasibility of treated PG (TPG) washed repeatedly using …
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Both cases indicate that the carbonated HCP coated with slag shows the best performance in reducing water absorption, which means that slag provided external calcium for making a reaction with CO 2 in addition to its pozzolanic and hydraulic reaction which will be discussed in detail in Section 3.3.2. The water absorption of W-SS10 and W-SS20 ...
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High-pressure water jets wash the boiler slag from the hopper into a sluiceway which then conveys the ash to collection basins for dewatering, possible crushing or screening, and stockpiling. (4) The resulting boiler slag, often referred to as "black beauty", is a coarse, angular, glassy, black material.
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The invention relates to a use of water washing type slag for producing a fish pond pavement surface. Discarded slag after being washed with water is then utilized for deposition to obtain fine material level or lower water washing type slag. As the fish pond is established by recycling and reutilizing the discarded slag, the establishing and maintaining costs are very low; as the earth ...
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The slag can be used in road-building, fly ash is used in the cement industry, and sulfur or sulfuric acid can be readily recovered and marketed. Multifuel capability This special feature allows the co-feeding of liquid and gaseous feedstocks. ... Wash water Steam Raw gas cake Waste water
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The water washing treatment was used to overcome this problem. An initial pH of an EAF slag sample was 11.2. After first water washing it remained the same. The second water washing reduced the pH significantly and it became 8.5, while after third water washing a slight decrease in pH observed (8.3).
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In this paper, 3 typical organic fluids were selected as working fluids for a sample slag washing water binary power plants. In this system, the working fluids obtain the thermal energy from slag ...
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The neutralization slag underwent a water washing process, with two washes (first with 0.2 mol/L acidity water at a solid-liquid ratio of 1:2 and second with deionized water at a …
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The presented results also indicate the effectiveness of pressurized water-washing in removing clogging particles throughout the specimen rather than from the surface only. This is consistent with findings reported by Chopra et al. [43]. Further, the effect of slag on the restoration of the permeability coefficient was examined.
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Water Lance. A pipe connected by a hose to a water supply. The lance is used to wash slag from the boiler tubes. ...
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Incineration fly ash contains a large amount of chloride, which limits the scope of its resource utilization. Water washing effectively removes chlorides and soluble substances, increasing the ability to dispose of them. The properties of incineration fly ash after multi-level water washing have been studied, providing theoretical guidance for the safe disposal of water …
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