The influences of MSWI fly ash washing and blast furnace slag…

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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Utilisation of Water-Washing Pre-Treated Phosphogypsum for

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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Recovery of scandium from Sc-bearing aegirine by Na2CO3 roasting-water

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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Removal of zinc from submerged arc furnace flue gas wash water …

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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CN100352553C

The present invention relates to a water washing program for incinerated bottom slag, which is a program for reprocessing graded material formed after the incinerated bottom slag is crushed, separated and sieved. The graded material is conveyed to a feed hopper; graded material arrays delivered by the feed hopper are conveyed into a sieving machine; after the graded material is …

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Electrolytic manganese residue pretreated by filter press-water washing

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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Water washing type slag treatment method

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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Removal of zinc from submerged arc furnace flue gas wash water …

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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Slag

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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Coal Bottom Ash/Boiler Slag

At intervals, high-pressure water jets wash the boiler slag from the hopper pit into a sluiceway which is then conveys it to a collection basin for dewatering, possible crushing or screening, and either disposal or reuse. (4) During 1995, the utility industry in the United States generated 2.3 million metric tons (2.6 million tons) of boiler ...

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Slag water washing dechlorination method

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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Overall Utilization of Ti-Extraction Blast Furnace Slag as a Raw

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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Overall Utilization of Ti-Extraction Blast Furnace Slag as a Raw

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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Using Municipal Solid-Waste Incinerator Fly Ash, Wash Water, …

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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Engineering Dictionary

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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Electrolytic manganese residue pretreated by filter press-water …

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 effect of different organic fluids on performances of binary slag

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 influences of MSWI fly ash washing and blast furnace …

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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Investigation the engineering properties and environmental …

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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Use of Slag in The Wash Water to Restore The Concrete …

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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Electrolytic Manganese Residue Pretreated by Filter Press-Water Washing

Electrolytic Manganese Residue Pretreated by Filter Press-Water Washing and Carbide Slag: Manganese Recycling, Depth Harmless and Dispersion. 21 Pages Posted: 26 Dec 2023. See all articles by Dejun He Dejun He. Southwest University of …

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Study on the Combined Disposal Process of Magnesium Salt …

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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Bioleaching of metals from steel slag by Acidithiobacillus …

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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Global Water, Sanitation and Hygiene | Global Water, Sanitation, …

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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CFD–DEM method is used to study the multi-phase coupling slag …

The factors affecting the slag discharge effect from high to low are the pressure of the slag discharge channel, aperture of the water inlet channel, length of the machine, pressure of the water inlet channel, and aperture of the slag discharge channel. ... and fluid washing slag flow field in large diameter shaft boring machines and revealed ...

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Coal Bottom Ash/Boiler Slag

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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Industrial Solutions uhde entrained-flow gasification

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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Enhancement of recycled concrete aggregate through slag …

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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Water-washing treating method for slag

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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CN102669016A

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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