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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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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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 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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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. 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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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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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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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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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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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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Electrolytic manganese residue pretreated by filter press-water washing and carbide slag: Manganese recycling, depth harmless and dispersion. Dejun He Mengjun Chen Hui Liu. ... Steel slag and GBFS are wastes generated during the steel and iron smelting process, characterized by their considerable production rates and extensive storage ...
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A slag water washing dechlorination method comprises the following steps: and carrying out multi-stage countercurrent washing on the slag, and carrying out solid-liquid separation to...
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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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This paper reviews the potential of steel slag as an adsorbent for removing pollutants in water; the results demonstrate that steel slag can be used for removing inorganic non-metallic ions (e.g ...
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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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