Optimization and dust emissions analysis of the air jigging technology applied to the recycling of construction and demolition waste. R. Waskow V. D. dos …

The results indicated that although the air jigging of RCA increased the compressive strength of concrete by up to 19.0% due to a reduction in the mortar and ceramic content, the process increased ...

The equipment tested, conventional jig, air jig, and sensor-based sorting present good results to concentrate construction and demolition waste particles, with different …

@article{Waskow2020OptimizationAD, title={Optimization and dust emissions analysis of the air jigging technology applied to the recycling of construction and demolition waste.}, author={R{'e}gis Pereira Waskow and Viviane LG dos Santos and Weslei Monteiro Ambr{'o}s and Carlos Hoffmann Sampaio and Ana Passuello and …

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DOI: 10.1016/j.wasman.2016.11.029 Corpus ID: 3175435; Usage of air jigging for multi-component separation of construction and demolition waste. @article{Ambrs2017UsageOA, title={Usage of air jigging for multi-component separation of construction and demolition waste.}, author={Weslei Monteiro Ambr{'o}s and Carlos Hoffmann Sampaio and Bogdan …

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5 1 to the use of air jigging technology for CDW processing. These include the 2 influence of jigging operation on dust and dust emissions generation, which may 3 contain fine inhalable and non-inhalable particles that can result in damage to 4 human health. 5 1.2 Study objectives6 7 8 Within the aforementioned context, the present study aimed to …

The plant uses air-jigging technology to separate undesirable ash constituents as well as sulfur and mercury. The results of this study indicate average ash, sulfur, and mercury reductions on a weight basis of 15%, 22%, and 28%, respectively. The average heating value was increased by 2% on a Btu/lb basis.

This work aims to evaluate the use of the air jigging technique, a density-based separation technology commonly applied in mineral processing, to upgrade the quality of mixtures (density and geometric properties) that represents the typical composition of construction and demolition waste (CDW) produced in Brazil. In this sense, tests involving the …

The use of air jigging for performing multi-component separation in the treatment of mixed construction and demolition waste was studied. Sorting tests were carried out with …

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Jigging is one of the oldest methods of ore treatment and remains one of the workhorses of the mining industry. Until recently, it was, together with dense medium separation (DMS), the main ... through a plunger or by the pulsation of water or air that is intermittently fed into the jig vessel by using a special valve. In some types of jig, the ...

This study investigates the influence of wall effects on particle separation in an air jigging device. Tests were conducted with a ternary mixture of concrete, brick and gypsum particles in the size range from 12 to 20 mm for three different jigging times. It is shown that an unusual, remarkable segregation occurred in the direction perpendicular …

The use of air jigging for performing multi-component separation in the treatment of mixed construction and demolition waste was studied. Sorting tests were carried out with mixtures of equal bulk volume of concrete and brick in which fixed quantities of unwanted materials - gypsum, wood and paper - were added. Experimental results have demonstrated the …

The air jigging tests were carried out in a batch pilot-scale air jig model AllAir ® S-500 of the company AllMineral . The jigging chamber was assembled with different rectangular sections of Plexiglas (500 mm × 500 mm × 50 mm), fitted one over the other on a perforated plate (Ø = 1 mm) for the air passage.

Air jigging technology reduced the mortar and ceramic content in RCA; hence, it increased the strength of the jigged material relative to concrete without air jigged RCA. However, jigging RCA resulted in natural and accelerated carbonation coefficients up to 2.5 times higher than concrete made with natural coarse aggregate. The treatment of …

There are 3 commonly used Jig machines, which are diaphragm jig, air pulsating jig and moving jig. #1 Diaphragm Jig. Diaphragm jig is a type of jigging machine that is widely used in gravity …

Dry Jigs Dry jigging (also called "pneumatic" or "air jigging", though these designations may be mistaken as air-pulsated water jigs) is becoming more and more relevant as the concern with slurry waste disposal and water handling costs intensifies. Dry jigging was introduced in the coal industry during the 1920s by applying the concepts ...

This study investigates the influence of wall effects on particle separation in an air jigging device. Tests were conducted with a ternary mixture of concrete, brick and gypsum particles in the size range from 12 to 20 mm for three different jigging times.It is shown that an unusual, remarkable segregation occurred in the direction perpendicular …

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The present work studies an air jig sorting method to separate out concrete particles from a C&D mixture that contains high amount of gypsum (22% mass) and brick (24% mass) particles. The mixture of aggregates studied had a 4–20 mm grading. After sorting, the bottom third of the mixture had less than 1% mass of gypsum and more than …

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The use of air jigging for performing multi-component separation in the treatment of mixed construction and demolition waste was studied. Sorting tests were carried out with mixtures of equal bulk ...

The use of air jigging for multi-component sorting of C&D waste was studied. • The air jig was able to simultaneously remove the low-density contaminants and to …

The air jig is an equipment of simple operation that enables the separation of granular materials without the use of chemical products or water, which makes it an …

Jigging. Jigging is a process of particle stratification that involves the rearrangement of particles in a bed through pulsating fluid flow, resulting in layers of particles arranged by increasing density from top to bottom. ... A batac jig is a variation of this design that uses an air chamber below the perforated plant to trap air and create ...

Air jig is proposed as a recycling strategy for CDW sustainable reuse and recycling. In contrast to RCA-C, air jig allows better CDW segregation, providing …

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Jigging., Materials and Methods Figure 1 presents a schematic figure of an industrial air jig used in mineral processing. Jigging is the most widely used separation process in the mineral industry. It consists of the expansion and contraction of a particle bed through the passage of a pulsating medium, which may be water or air.

Dry jigging (also called "pneumatic" or "air jigging", though these designations may be mistaken. as air-pulsated water jigs) is becoming more and more relevant as the concern with slurry ...