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Artículos de revistas sobre el tema "Sand Flotation"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 1 de febrero de 2022

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1

Nie, Yi Miao, Xiao Long Lu, and Fu Sheng Niu. "Purification Experiment Research of Quartz Sand." Applied Mechanics and Materials 389 (August 2013): 346–48. http://dx.doi.org/10.4028/www.scientific.net/amm.389.346.

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In this paper, strong intensity magnetic flotation-acid leaching was used to separate feldspar, mica and quartz. And after the mixed acid leaching, the final quartz concentrate flotation was gained. After the sorting process of magnetic-flotation-acid leaching, the quartz concentrate was 99.19%, and the iron content was 0.016%. The quartz product quality meet the quality standards of the national concentrates level, and can be used as materials of glazed ceramic material, glass and other raw materials.
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2

Nie, Yi Miao, Bin Wang, and Fu Sheng Niu. "Purification Experiment of Silica Sand from Gold Ore Tailings." Applied Mechanics and Materials 389 (August 2013): 251–54. http://dx.doi.org/10.4028/www.scientific.net/amm.389.251.

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Based on the properties of silica sand from gold ore tailings, several experiments, such as flotation of sulphide ore, separation of calcite and dolomite, flotation of mica and feldspar, acid leaching tests, were researched in the flotation experiment. The results showed that with series optimum conditions,SiO298.12% was got with 50% productivity (for raw ore) with Al2O3 1.00% ,Fe2O30.10% , which reached the second product standard of glass raw materials.
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3

Wei, Lim Mee, Lau Ee Von, and Poh Phaik Eong. "Optimization of Nanobubble-Assisted Bunker Oil Flotation from Oil-Wet Sand via Response Surface Methodology (RSM)." ASEAN Journal of Chemical Engineering 15, no. 1 (2015): 1. http://dx.doi.org/10.22146/ajche.49688.

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Flotation technology is an effective method for the separation of oil from sand via gas-liquid-solid system. The mechanism of flotation lies in the generation of gas bubble that attaches itself to the hydrophobic particles. Therefore, one of the main parameters which could affect the efficiency of flotation is the bubble size distribution. This research aims to investigate the efficiency of nanobubbles (NBs) in the flotation process to remove high density bunker oil from oil/sand slurry in a laboratory-scale flotation cell. Experiments were carried out using NBs (approximate diameter of 200 nm
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4

Rivard, Benoit, Jilu Feng, Derek Russell, Vivek Bhushan, and Michael Lipsett. "Hyperspectral Characteristics of Oil Sand, Part 1: Prediction of Processability and Froth Quality from Measurements of Ore." Minerals 10, no. 12 (2020): 1138. http://dx.doi.org/10.3390/min10121138.

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This study is the first of two companion papers using hyperspectral data to generate predictive models of oil sand ore and froth characteristics as a potential new means for process control. In Alberta, Canada, shallow oil sands deposits are accessed by surface mining and crushed ore is transported to a processing plant for extraction of bitumen using flotation processes. The ore displays considerable variability in clay, bitumen, and fines which affects their behavior in flotation units. Using oil sand ore spanning a range of bitumen and fines characteristics, flotation experiments were perfo
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5

ARGÜELLES - DÍAZ, ALEJANDRO, JAVIER TABOADA - CASTRO, FERNANDO GARCÍA - BASTANTE, and MARÍA ARAÚJO - FERNÁNDEZ. "EFFECTS OF FLOTATION VARIABLES ON FELDSPATHIC SAND CONCENTRATION." DYNA 81, no. 183 (2014): 132. http://dx.doi.org/10.15446/dyna.v81n183.36287.

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6

Nolan, Bernard T., William F. McTernan, and Chris J. Laya. "Multi‐Stage Air Flotation of Tar Sand Wastewater." Journal of Energy Engineering 112, no. 1 (1986): 14–24. http://dx.doi.org/10.1061/(asce)0733-9402(1986)112:1(14).

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7

van Rijt, C. "Cleaning Contaminated Sediments by Separation on the Basis of Particle Size." Water Science and Technology 28, no. 8-9 (1993): 283–95. http://dx.doi.org/10.2166/wst.1993.0627.

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In the Netherlands large quantities of contaminated sediment have to be dredged. Because it cannot be relocated directly in the marine environment, the dredged material must be placed in special contained depots which are expensive to construct. In 1989 a programme to reduce the volume of storage space required was started. This paper includes the results of research into the physical aspects of sediment cleaning. Heavy metals are often found in the silt fraction, while organic micro pollutants occur in the silt fraction and sometimes also as tar particles in the sand fraction. The sediment ca
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8

Hacifazlioglu, Hasan. "Enrichment of Silica Sand Ore by Cyclojet Flotation Cell." Separation Science and Technology 49, no. 10 (2014): 1623–32. http://dx.doi.org/10.1080/01496395.2014.893357.

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9

van Puffelen, Jan, Paul J. Buijs, Peter N. A. M. Nuhn, and Wim A. M. Hijnen. "Dissolved air flotation in potable water treatment: the Dutch experience." Water Science and Technology 31, no. 3-4 (1995): 149–57. http://dx.doi.org/10.2166/wst.1995.0525.

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This paper reviews the experience the drinking water companies in The Netherlands have gained in the last twenty years in the field of dissolved air flotation. An overview of the Dutch flotation plants with their individual objectives is presented. The efficiency of flotation towards the removal of different parameters, such as turbidity, organic matter and micro-organisms is good, which is illustrated by data from the water companies. Both in the past and at present water companies compare flotation to other floc separation techniques, such as sedimentation or direct filtration. Specially for
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10

Li, Pan Pan, Xing Fang Ning, Kun Peng Ye, and Guo Ning Chen. "Research on the Biofilm Accretion of Flotation Bio-Filter." Applied Mechanics and Materials 229-231 (November 2012): 175–78. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.175.

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Removal the pollutants of the polluted water through flotation bio-film are reached by the cooperation work of microbial degradation and sand filter. This paper through dosing the bacterial suspension and nutrition did the research on biofilm accretion. Results showed that the biomass on quartz sand had greatly increased, and the removal rates of organic and ammonia nitrogen also had a huge increase. At the end of biofilm accretion, the removal rates of pollutants keep at a stable value.
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11

Borecka, A., and J. Gawor. "Modification of gDNA extraction from soil for PCR designed for the routine examination of soil samples contaminated with Toxocara spp. eggs." Journal of Helminthology 82, no. 2 (2008): 119–22. http://dx.doi.org/10.1017/s0022149x07877522.

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AbstractA modification of gDNA extraction was developed for the polymerase chain reaction (PCR) technique, intended for the detection and differentiation of Toxocara spp. eggs in soil or sediments. Sand samples from sandpits confirmed as being contaminated with Toxocara spp. eggs by the flotation technique were analysed by PCR. The use of proteinase K made it possible to obtain genomic DNA from the sample without needing to isolate eggs using flotation or to inactivate PCR inhibitors present in the sand. Specific primers in the PCR reaction allowed discrimination between T. canis and T. cati e
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12

Hokajärvi, Anna-Maria, Tarja Pitkänen, Päivi Meriläinen, et al. "Determination of Removal Efficiencies for Escherichia coli, Clostridial Spores, and F-Specific Coliphages in Unit Processes of Surface Waterworks for QMRA Applications." Water 10, no. 11 (2018): 1525. http://dx.doi.org/10.3390/w10111525.

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The removal efficiencies of bacteria, bacterial spores, and viruses after a change in source water and water pH in coagulation were studied at pilot scale in coagulation with flotation, rapid sand filtration, and disinfection with UV and chlorine. The results were compared to the treatment efficiencies of full-scale waterworks and data from literature. A quantitative microbial risk assessment (QMRA)-method was applied to estimate the numbers of illness cases caused by Campylobacter and norovirus after simulation of six operational malfunction scenarios. Coagulation with flotation and disinfect
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13

Loh, A. G., and D. A. Israf. "Tests on the centrifugal flotation technique and its use in estimating the prevalence of Toxocara in soil samples from urban and suburban areas of Malaysia." Journal of Helminthology 72, no. 1 (1998): 39–42. http://dx.doi.org/10.1017/s0022149x0000095x.

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AbstractThe influence of soil texture (silt, sand and laterite) and flotation solutions (saturated NaCl, sucrose, NaNO3 and ZnSO4) upon the recovery of Toxocara ova from seeded soil samples with the centrifugal flotation technique was investigated. Soil samples of different texture were artificially seeded with Toxocara spp. ova and subjected to a centrifugal flotation technique which used various flotation solutions. The results showed significant (P<0.001) interactions between the soil types and the flotation solutions. The highest percentage of ova recovery was obtained with silty soil (
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14

Feshenko, D. V., T. I. Bakhur та O. A. Zgozinska. "ЗБЕРЕЖЕННЯ ЖИТТЄЗДАТНОСТІ ЯЄЦЬ ТА ЛИЧИНОК СТРОНГIЛЯТ I АСКАРИДАТ У ДОВКІЛЛІ В ЗИМОВИЙ ПЕРІОД". Scientific Messenger of LNU of Veterinary Medicine and Biotechnology 18, № 2(66) (2016): 189–92. http://dx.doi.org/10.15421/nvlvet6638.

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This paper presents the results of the helminthological study of sand, hay and silage in different periods of 2010 – 2015. It was established that on the territory of Polissya the eggs and larvae of nematodes (Parascaris equorum, Strongylidae sp., Toxocara canis) at typical winter air temperature (-15 – +3 °C) remain viable in the environment, contributing to the spread of continuous year-round animal infestation.We prove that in the stall period of keeping animals rough and succulent feed (hay, silage) can be a source of infection of nematodes even in late winter: according to our data, in Fe
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15

Evdokimov, S. I., S. V. Galachieva, V. S. Puzin, V. S. Evdokimov, and D. V. Tebloeva. "Removal of Iron Minerals from Glass Quartz Sand by Flotation." Glass and Ceramics 72, no. 3-4 (2015): 139–41. http://dx.doi.org/10.1007/s10717-015-9742-2.

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16

Ibrahim, Suzan S., Wael M. Fathy, Magdy A. Elsayed, and Tawfik R. Boulos. "Iron Bearing Minerals Flotation from Silica Sand Using Hydroxyl Surfactants." Journal of Minerals and Materials Characterization and Engineering 09, no. 04 (2021): 327–44. http://dx.doi.org/10.4236/jmmce.2021.94023.

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17

Pedchenko, Larysa, Nazar Pedchenko, Jerzy Kicki, and Mykhailo Pedchenko. "Improvement of the bitumen extraction technology from bituminous sand deposits." E3S Web of Conferences 201 (2020): 01004. http://dx.doi.org/10.1051/e3sconf/202020101004.

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Today considerable experience in the development of tar sands is accumulated. However, well-known mining technologies do not cover the entire depth range of natural bitumen deposits. In addition, there are significant energy-intensive technologies and negative environmental impacts. In view of this, the purpose of this work is to improve the method of extracting natural bitumen in site for a deposit interval of 75 – 200 m and to substantiate the basic technological scheme of this method. The proposed method of extracting bitumen from poorly cemented reservoirs in the depth range of 50 – 400 m
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18

Rivard, Benoit, Jilu Feng, Derek Russell, Vivek Bushan, and Michael Lipsett. "Hyperspectral Characteristics of Oil Sand, Part 2: Prediction of Froth Characteristics from Measurements of Froth." Minerals 10, no. 12 (2020): 1137. http://dx.doi.org/10.3390/min10121137.

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This is the second part of a study of predictive models of oil sand ore and froth characteristics using infrared hyperspectral data as a potential new means for process control. In Alberta, Canada, bitumen in shallow oil sands deposits is accessed by surface mining and then extracted from ore using flotation processes. The ore displays variability in the clay, bitumen, and fines content and this variability affects the separability and product quality in flotation units. Flotation experiments were performed on a set of ore samples of different types to generate froth and determine the ore proc
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19

Li, Ying, Ke Feng Zhang, and Mei Li. "Condition Optimization of Dissolved Air Flotation-Filter and Mechanism Research." Advanced Materials Research 374-377 (October 2011): 975–81. http://dx.doi.org/10.4028/www.scientific.net/amr.374-377.975.

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DAFF’s treatment effect on Yellow River reservoir water under different reflux ratios is studied in this paper. Determination of indicators are turbidity、CODMn、NH4+-N、UV254、particle counter and unconventional indicators, such as biomass、TOC、olfactory threshold and smell of factors. The best reflux ratio is 14%; The average value of NH4+-N、CODMn 、UV254、and turbidity of carbon-sand filter’s outlet is 0.125、1.61mg/L、0.033cm-1 and 0.21NTU, accordingly, the average removal rates are 58.64 %、40.44 %、27.96 % and 90.26 %; The micro-organisms in filter material are mainly existed in the upper layer of
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20

Zhou, Joe, Haihong Li, Liyan Zhao, and Ross Chow. "Role of mineral flotation technology in improving bitumen extraction from mined Athabasca oil sands: I. Flotation chemistry of water-based oil sand extraction." Canadian Journal of Chemical Engineering 96, no. 9 (2018): 1986–99. http://dx.doi.org/10.1002/cjce.23139.

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21

Zhou, Joe Z., Haihong Li, Ross S. Chow, Qingxia Liu, Zhenghe Xu, and Jacob Masliyah. "Role of mineral flotation technology in improving bitumen extraction from mined Athabasca oil sands—II. Flotation hydrodynamics of water‐based oil sand extraction." Canadian Journal of Chemical Engineering 98, no. 1 (2019): 330–52. http://dx.doi.org/10.1002/cjce.23598.

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22

Shepeta, Elena, Natalia Litvinova, Marina Bubnova, and Mehmet Bilen. "Research on modeling the technology of processing anthropogenic old tailings of Primorsky Concentrating Factory." E3S Web of Conferences 192 (2020): 02011. http://dx.doi.org/10.1051/e3sconf/202019202011.

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The possibility of processing old tailings of the Primorsky Concentrating Factory (PCF) has been assessed. The average mass fraction of WO3 is 0.08%, Cu is 0.052%, the average content of Au is 0.38 ppm, Ag is 1.1 ppm. The grain size of scheelite and chalcopyrite is from 0.03 mm and below. Basically, intergrowths of scheelite are in quartz, less often is in pyroxene, chalcopyrite is in pyrrhotite, less often is in quartz. The results of experimental studies of the washability of secondary mineral material using flotation and gravity beneficiation methods are presented. The possibility of intens
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23

Mowla, D., G. Karimi, and K. Ostadnezhad. "Removal of hematite from silica sand ore by reverse flotation technique." Separation and Purification Technology 58, no. 3 (2008): 419–23. http://dx.doi.org/10.1016/j.seppur.2007.08.023.

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24

Miller, J. D., M. Misra, and S. Gopalakrishnan. "Gold flotation from Colorado River sand with the air-sparged hydrocyclone." Mining, Metallurgy & Exploration 3, no. 3 (1986): 145–48. http://dx.doi.org/10.1007/bf03402651.

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25

Stankovic, Mirjana, and Lato Pezo. "Detergent zeolite complex "Ceosil", Tallinn, Estonia." Chemical Industry 57, no. 2 (2003): 58–60. http://dx.doi.org/10.2298/hemind0302058s.

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The IGPC Engineering Department, together with the "Birac", Zvornik Engineering Department designed basic projects for detergent zeolite production, using waste flotation sand and hydrates. Several projects were completed: technological, machine, electrical, automation. On the basis of these projects, production plant in Tallinn, Estonia was constructed, with a capacity of 100,000 t/y from 1989. to 1993. This plant became the biggest producer of detergent zeolite in the world.Several goals were realized by designing the "Ceosil" plant. Waste flotation sand was used and detergent zeolite was pr
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26

Prastuti, Okky Putri, Ayu Tri Septianingrum, Elisya Dianty Fatmala, Ufafa Anggarini, Tri Eddy Susanto, and Nuvixca Dewi Milangsari. "THE EFFECT OF REVERSE FLOTATION METHOD ON SILICA SAND AS WATERPROOFING MORTAR." Jurnal Sains Materi Indonesia 22, no. 1 (2021): 8. http://dx.doi.org/10.17146/jsmi.2020.22.1.5991.

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THE EFFECT OF REVERSE FLOTATION METHOD ON SILICA SAND AS WATERPROOFING MORTAR. Waterproof fabrication mortar cement by silica sand using reverse flotation silica (RFS) method was evaluated by waterproof absorption coefficient, compressive strength test, attractive test, and contact angle. RFS is used to replace waterproof agent and aggregate mortar to reduce cost. The aims of this experiment are to know the RFS process, the ratio between waterproof mortar cement with RFS and mortar, to determine performance and characteristic waterproof mortar cement. Methods used are prepared RFS, mortar ceme
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27

Kiuri, H. J. "Development of dissolved air flotation technology from the first generation to the newest (third) one (DAF in turbulent flow conditions)." Water Science and Technology 43, no. 8 (2001): 1–7. http://dx.doi.org/10.2166/wst.2001.0450.

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This paper gives a brief description of the development of dissolved air flotation DAF (or so-called high pressure flotation) as an unit operation for removal of solids in water and wastewater treatment during the last 80 years up to this time. The first DAF-systems used in the water industry were the ADKA and Sveen-Pedersen ones from the 1920s. Some of these are still in use. The tanks in which the flotation phenomenon takes place in these systems are very shallow and narrow as well as rather long. The flow rate of water is some 2–3 m/h (at most less than 5 m/h only) and there is a very thin
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28

Lima, Rosa Malena Fernandes, R. M. M. Morais, and Alexandro Fortes S. Silva. "Quartzite Quarry Waste Recovery: A Case Study." Materials Science Forum 636-637 (January 2010): 1244–51. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.1244.

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The quartzite dimension stones from the region of Ouro Preto, State of Minas Gerais, Brazil are exploited by LPA (local productive agreement). There are about 350 people directly involved in this economic activity. The rock in this region is greatly weathered. Because of this, the final quartzite recovery is only about 30% of the volume, resulting in great amounts of waste which is deposited on land near the pits. At a typical quarry in Passagem de Mariana, near Ouro Preto, fragments and sand from the waste deposits were collected and characterized. The results are presented herein. After stud
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29

Li, Siwei, Zhengqi Guo, Jian Pan, Deqing Zhu, Tao Dong, and Shenghu Lu. "Stepwise Utilization Process to Recover Valuable Components from Copper Slag." Minerals 11, no. 2 (2021): 211. http://dx.doi.org/10.3390/min11020211.

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Waste copper slag is a typical hazardous solid waste containing a variety of valuable elements and has not been effectively disposed of so far. In this paper, a stepwise extraction process was proposed to recover valuable elements (copper, iron, lead and zinc) from waste copper slag. The specific procedures are as follows: (1) A flotation process was adopted to enrich copper, and when the copper grade in the flotation concentrate was 21.50%, the copper recovery rate was 77.78%. (2) The flotation tailings were pelletized with limestone, then the green pellets were reduced, and the magnetic sepa
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30

Hossain, Ismail, Syed Shamsuddin Ahmed, Md Najmul Islam, Pradip Kumar Biswas, and Md Aminur Rahman. "Glass sand potentiality of bar sediments from Tista and Dharla rivers, Bangladesh." Rajshahi University Journal of Life & Earth and Agricultural Sciences 41 (January 15, 2015): 57–64. http://dx.doi.org/10.3329/rujleas.v41i0.21625.

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The present investigation deals with the glass sand potentiality of the barsediments of Tista and Dharla rivers from different locations of Nilfamari,Lalmonirhat and Kurigram districts, Bangladesh. Accordingly, fourteen sampleswere selected for grain size distributions with separation of magnetic minerals.Magnetic mineral content ranges from about trace amount to 0.06 wt%. Lightminerals separated by tetrabromoethane technique ranging from about 88 to 98 wt%. Moreover, glass sand as final products by flotation process evaluationranges from 58 to 80 wt%, which indicate good quantity of glass san
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31

Mares, Monica, Gabriela Isopencu, Cosmin Jinescu, Paul Vasilescu1, and Gheorghita Jinescu. "Aspects Concerning the Drying of Grained Biomaterials through Intensive Processes II. Malt Grain Drying in Fluidized Bed Formed by Inert Particles." Revista de Chimie 59, no. 3 (2008): 283–91. http://dx.doi.org/10.37358/rc.08.3.1749.

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Present paper have like objective the experimental study regarding the intensification of the drying process of malt using like drying agent the atmospheric air at ambient temperature and at 45oC, in flotation-fluidized bed. To reduce the operating drying period by using the fluidization agent at 45oC, it was studied the drying in mixt bed, formed by inert particles (sand, dp=150mm, smashed malt, ) and wet malt grains (in flotation state). Comparing the drying periods and the final moistures obtained at the malt drying in fixed bed (fixed mixt bed) with those obtained in fluidized mixt bed was
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32

Montréjaud-Vignoles, M., T. Poujol, and C. Vignoles. "Treatment of biosolids flushed from sewer systems: characterization of biosolids and the sand extracted and the handling of washing water." Water Science and Technology 38, no. 10 (1998): 231–39. http://dx.doi.org/10.2166/wst.1998.0406.

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A research program on the characteristics of biosolids flushed from sewer systems in Toulouse (southwest France) and on the quality of sand extracted from these biosolids by hydrocycloning was carried out using samples from different sites. The treatment of washing water through air flotation was also studied. These initial results show the difficulty in establishing a strict typology for each family of flushed biosolids. On the other hand, the measurements done after hydrocycloning the biosolids clearly show that it is possible to imagine high performance treatment centers which would be able
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33

Igor, Barmin, Morozov Valerii, and Polivanskaia Valeriia. "Improving the technology of mature tailings processing at the Kovdorsky GOK." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, no. 5 (August 6, 2020): 56–65. http://dx.doi.org/10.21440/0536-1028-2020-5-56-65.

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Introduction. Phosphate minerals are lost during flotation of mature tailings of the Kovdorsky GOK due to difficult mineral fractions and poor conditions for effective flotation of thin classes of phosphate minerals. Research aims to increase the efficiency of raw material processing at the technogenic deposit of the Kovdorsky GOK by optimizing the reagent regime and the scheme of dressing thin classes of mature tailings with the use of modern reagents-flocculants, selective depressors and collectors. Methodology. The developed regime of sludge preparation for flotation involves their thickeni
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34

Ajala, M. O., and S. O. Asaolu. "Efficiency of the salt flotation technique in the recovery of Ascaris lumbricoides eggs from the soil." Journal of Helminthology 69, no. 1 (1995): 1–5. http://dx.doi.org/10.1017/s0022149x00013754.

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AbstractThe efficacy of the salt flotation technique using saturated solutions of sodium nitrate (specific gravity 1.30) and zinc sulphate (specific gravity 1.16) for separating Ascaris lumbricoides eggs from clay, loamy and sandy soils has been investigated. Ten samples of each of the egg concentrations of 100, 500, 2500, 5000 and 10,000 eggs/25 g of soil were used for each soil type. Using T-test and ANOVA, the number of eggs recovered from sand was significantly higher than from loam and the number from loam significantly higher than from clay. With sodium nitrate, the maximum egg recovery
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35

Lim, M. W., E. V. Lau, P. E. Poh, and W. T. Chong. "Interaction studies between high-density oil and sand particles in oil flotation technology." Journal of Petroleum Science and Engineering 131 (July 2015): 114–21. http://dx.doi.org/10.1016/j.petrol.2015.04.016.

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McTernan, W. F., W. E. Blanton, G. D. Boardman, B. T. Nolan, and D. J. Kocornik. "Polymer flotation and activated carbon adsorption treatment forin situ tar sand process water." Environmental Progress 5, no. 3 (1986): 154–58. http://dx.doi.org/10.1002/ep.670050308.

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37

Figueiredo, Ricardo Augusto Martins, Sávio José de Oliveira, Guilherme Francisco de Sales Silva, et al. "CHARACTERIZATION OF FLOTATION TAILINGS FROM SAMARCO AND OTHER VARIETIES OF SAND FOR USE IN SAND MOLDING IN THE FOUNDRY INDUSTRY." Tecnologia em Metalurgia Materiais e Mineração 16, no. 2 (2019): 246–54. http://dx.doi.org/10.4322/2176-1523.20191770.

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Lainé, S., T. Poujol, S. Dufay, J. Baron, and P. Robert. "Treatment of stormwater to bathing water quality by dissolved air flotation, filtration and ultraviolet disinfection." Water Science and Technology 38, no. 10 (1998): 99–105. http://dx.doi.org/10.2166/wst.1998.0385.

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For the first time, a process for the treatment of urban stormwater has been designed in order to obtain treated water suitable for bathing activities. The degree of pollution removal is taken as far as the microbiological disinfection of the final effluent. This process, which combines air flotation, filtration and ultraviolet (UV) disinfection, has been tested at the pilot plant level in the eastern suburbs of Paris, France. The removal efficiency obtained on total suspended solids (TSS) and chemical oxygen demand (COD) through the flotation stage is close to 90% or better. The flotation fac
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39

Guler, Taki, and Ercan Polat. "Gangue Entrainment in Olivine Flotation: Effect of MIBC Dosage on the Mitigation of Lizardite Recovery." Current Physical Chemistry 10, no. 2 (2020): 98–106. http://dx.doi.org/10.2174/1877946809666190919092219.

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Background: Olivine is an important industrial raw material especially for metallurgical applications like foundry sand, refractory, slag conditioning, etc. Loss On Ignition (LOI) value (>1%) is the main specification of olivine ore/concentrate for those areas together with the chemical specifications. Objective: This flotation study was conducted in natural pH condition with Na-oleate as collector to clarify the effect of frother (MIBC) dosage on the LOI value of olivine concentrate. Methods: Characterization of ore sample for this study was made by XRD, XRF and petrographic analyses. Liza
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40

Sekulić, Ž., N. Canić, Z. Bartulović, and A. Daković. "Application of different collectors in the flotation concentration of feldspar, mica and quartz sand." Minerals Engineering 17, no. 1 (2004): 77–80. http://dx.doi.org/10.1016/j.mineng.2003.10.004.

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41

Al-Otoom, Awni, Mamdouh Allawzi, Naser Al-Omari, and Emad Al-Hsienat. "Bitumen recovery from Jordanian oil sand by froth flotation using petroleum cycles oil cuts." Energy 35, no. 10 (2010): 4217–25. http://dx.doi.org/10.1016/j.energy.2010.07.008.

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42

Basari, Ender, and Gurkan Ozden. "Effects of grain shape on the standard penetration test and particle packing." Acta Geotechnica Slovenica 17, no. 2 (2020): 65–75. http://dx.doi.org/10.18690/actageotechslov.17.2.65-75.2020.

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Coarse soils can contain flaky grains in addition to rounded or angular grains, along with a varying fines content. Depending on the regional geology, however, the mica grain content can be remarkable, reaching 30 % or higher. Therefore, it is reasonable to expect that mica grains would affect the soil behaviour. In this study, soils of a delta deposit that are known to involve mica grains were examined. The river sand was considered as the host material and the mica grain contents were determined by means of the flotation technique. A correlation between the mica content as found using the fl
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43

Schmidt, P. D., J. E. Tobiason, J. K. Edzwald, and H. Dunn. "DAF treatment of a reservoir water supply: comparison with in-line direct filtration and control of organic matter." Water Science and Technology 31, no. 3-4 (1995): 103–11. http://dx.doi.org/10.2166/wst.1995.0521.

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The goal of this paper is to compare the performance of an in-line direct filtration (no flocculation) process with a dissolved air flotation (DAF) and filtration process for drinking water treatment. Both processes were studied at the pilot scale and included biologically active dual media (GAC/sand) rapid filters. Specific attention is given to the fate of organic matter. Organic matter was analyzed by measurements of dissolved organic carbon (DOC), assimilable organic carbon (AOC), disinfection by-product formation potential (DBPFP) and ultraviolet absorbance at 254 nm (UV254). In general,
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44

Sta Maria, Ian Daryl, Mee Wei Lim, and Ee Von Lau. "Multiple roles of graphene nanoparticles (GNP) in microbubble flotation for crude oil recovery from sand." Results in Engineering 11 (September 2021): 100271. http://dx.doi.org/10.1016/j.rineng.2021.100271.

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45

Ityokumbul, M. T., W. Bulani, and N. Kosaric. "Economic and Environmental Benefits from Froth Flotation Recovery of Titanium, Zirconium, Iron and Rare Earth Minerals from Oilsand Tailings." Water Science and Technology 19, no. 3-4 (1987): 323–31. http://dx.doi.org/10.2166/wst.1987.0213.

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The froth flotation recovery of titanium, zirconium, iron and rare earth minerals from oil-sand tailings and their further beneficiation are described in this paper. The recovery of rare earth mineral value from these tailings has not been reported previously due to their low concentrations. The economic value of all of these minerals recovered in this way has been estimated to be almost double the cost of full effective tailings management. Adoption of these processes can eliminate the current unsound practice of simply storing these tailings behind high dykes in large lagoons.
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46

Mymrin, Vsévolod, Renata A. M. Correia, Kirill Alekseev, et al. "Sustainable materials from hazardous lead ore flotation waste in composites with spent foundry sand and clay." International Journal of Advanced Manufacturing Technology 109, no. 5-6 (2020): 1333–44. http://dx.doi.org/10.1007/s00170-020-05722-y.

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47

Xiao, Yao Zong, Wen Jun Zhang, Bin Wang, and Chun Cheng Tai. "Floatation Column Test Research into Ore Way." Advanced Materials Research 347-353 (October 2011): 1718–21. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1718.

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Developed a test using column flotation device, this experiment device in the structure designing considerate multifunctional traits, realizing continuous and respectively working. In the testing platform, installing two diameter vertical and inclined floatation column, so the device can complete roughing, selection and sweep the election testing. On researching the inflatable way, designing and testing two kinds of inflatable devices, one is jet, the other is sand core type. And testing three kinds of into ore ways, conical nozzle atomizer, atomizer grid and bar nozzle device. Through a serie
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48

Lehmann, Gunnar, and Rudolf Röttger. "Techniques for the concentration of foraminifera from coastal salt meadow sediments." Journal of Micropalaeontology 16, no. 2 (1997): 144. http://dx.doi.org/10.1144/jm.16.2.144.

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Abstract. INTRODUCTIONConcentration of modern foraminifera from sediment samples is commonly performed by the heavy liquid carbon tetrachloride (CCI4) flotation method. From mainly inorganic, siliclastic sediments from marine habitats, about 94% of the foraminifera contained within a sample can be isolated in the first step (Lutze, 1968). This procedure is used in order to reduce the time taken to examine the foraminiferal content of a sample. However, it is not practical in all cases. Surface sediments of salt meadows from the west coast of the German Bight (southern North Sea) can be divided
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49

Petrovskaya, Valentina N., Viktor V. Kondrat’ev, and Alexey A. Petrovskiy. "MECHANISM OF ELECTROCOAGULATION OF CHAMBER PRODUCT AFTER FLOTATION OF CYCLONE DUST OF SILICON PRODUCTION." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 10 (2017): 68. http://dx.doi.org/10.6060/tcct.20176010.5515.

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Spheroidal micro silica has a large specific-surface. This makes it indispensable for the manufacture of composite materials: construction mixtures, paints, rubber, adsorbents, etc. In the process of studying the properties of dust formed in the production of silicon, it was established that practically all of the quartzite carried away in the form of a fine dust phase into the gas removal and gas cleaning system is represented by spheroidized micro- and nanoparticles of SiO2 with a carbon impurity that is invariably present also in the finely dispersed state. One of the ways to extract carbon
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50

Wang, Yong Lei, Jun Li, Ke Feng Zhang, et al. "The Optimization Design and Operating Characteristics of Vertical Flow Dissolved Air Flotation Carbon-Sand Dual Media Filter Flofilter." Advanced Materials Research 864-867 (December 2013): 2031–34. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.2031.

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Aimed at the raw water quality characterized by low temperature and low turbidity in winter,high algae and organic matters in summer, the vertical flow-carbon sand dual media filter flofilter was developed to research water purification effect.In the meantime,the pressurized dissolved air system and the filter unit were optimized.Air flotation and filtration were integrated in a structure,which could effectively save land area, and the device had advantages of operation mode flexible and purifying water collaboratively,etc..The results showed that the device could reach better results when the
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