Search Results - "Carlito Baltazar Tabelin"

Galvanic Microencapsulation (GME) Using Zero-Valent Aluminum and Zero-Valent Iron to Suppress Pyrite Oxidation by Seng, Sophea, Tabelin, Carlito Baltazar, Kojima, Motoya, Hiroyoshi, Naoki, Ito, Mayumi

“…Pyrite is a common gangue mineral in mine wastes, and its oxidation is the primary cause of acid mine drainage (AMD) formation, which is a very serious…”
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Kinetic Analysis for Agglomeration-Flotation of Finely Ground Chalcopyrite: Comparison of First Order Kinetic Model and Experimental Results by Hornn, Vothy, Ito, Mayumi, Yamazawa, Ryosuke, Shimada, Hiromasa, Tabelin, Carlito Baltazar, Jeon, Sanghee, Park, Ilhwan, Hiroyoshi, Naoki

“…Particle size-flotation rate relationships can be discussed by a first-order kinetic model for flotation, which considers the probability of particle-bubble…”
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Mobilization and speciation of arsenic from hydrothermally altered rock in laboratory column experiments under ambient conditions by Tabelin, Carlito Baltazar, Igarashi, Toshifumi, Takahashi, Ryohei

“…► Water residence time indirectly affects the release of As by controlling the pH. ► Ca 2+ ions greater than ca. 50 mg/L retard the mobility of As. ►…”
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Mobilization and speciation of arsenic from hydrothermally altered rock containing calcite and pyrite under anoxic conditions by Tabelin, Carlito Baltazar, Igarashi, Toshifumi, Yoneda, Tetsuro

“…► As leaching is dependent on the water residence time under anoxic conditions. ► Higher pH and reduced Fe-oxyhydroxide/oxide precipitation enhanced As…”
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Jig separation of crushed plastics: the effects of particle geometry on separation efficiency by Phengsaart, Theerayut, Ito, Mayumi, Azuma, Arisa, Tabelin, Carlito Baltazar, Hiroyoshi, Naoki

“…Secondary resources (i.e., wastes) contain a wide variety of materials (e.g., plastics, metals, and wood) of various sizes and shapes that complicate…”
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A review of recent strategies for acid mine drainage prevention and mine tailings recycling by Park, Ilhwan, Tabelin, Carlito Baltazar, Jeon, Sanghee, Li, Xinlong, Seno, Kensuke, Ito, Mayumi, Hiroyoshi, Naoki

“…Acid mine/rock drainage (AMD/ARD), effluents with low pH and high concentrations of hazardous and toxic elements generated when sulfide-rich wastes are exposed…”
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Towards a low-carbon society: A review of lithium resource availability, challenges and innovations in mining, extraction and recycling, and future perspectives by Tabelin, Carlito Baltazar, Dallas, Jessica, Casanova, Sophia, Pelech, Timothy, Bournival, Ghislain, Saydam, Serkan, Canbulat, Ismet

“…•The LIBs market is forecasted to reach at least US$221 B by 2024 using 20–25% CAGR.•Li production growth within the next five years will lag that of…”
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Pollution prediction for heavy metals in soil-groundwater systems at smelting sites by Xue, Shengguo, Ke, Wenshun, Zeng, Jiaqing, Baltazar Tabelin, Carlito, Xie, Yi, Tang, Lu, Xiang, Chao, Jiang, Jun

“…[Display omitted] •Predicting contaminant transport from a soil-groundwater system perspective.•To achieve the prediction of heavy metal pollution trends in…”
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The two-step neutralization ferrite-formation process for sustainable acid mine drainage treatment: Removal of copper, zinc and arsenic, and the influence of coexisting ions on ferritization by Igarashi, Toshifumi, Herrera, Pepe Salgado, Uchiyama, Hiroyuki, Miyamae, Hiroko, Iyatomi, Nobuyoshi, Hashimoto, Koichi, Tabelin, Carlito Baltazar

“…Acid mine drainage (AMD) or acid rock drainage (ARD), the most notorious environmental problem in many mines and underground construction sites, is generally…”
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Acid mine drainage formation and arsenic mobility under strongly acidic conditions: Importance of soluble phases, iron oxyhydroxides/oxides and nature of oxidation layer on pyrite by Tabelin, Carlito Baltazar, Corpuz, Ryan D., Igarashi, Toshifumi, Villacorte-Tabelin, Mylah, Alorro, Richard Diaz, Yoo, Kyoungkeun, Raval, Simit, Ito, Mayumi, Hiroyoshi, Naoki

“…[Display omitted] •Interactions of pyrite, salts & metal oxides under acidic conditions were evaluated.•Soluble salts exhibited stronger effects on pyrite…”
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Copper and critical metals production from porphyry ores and E-wastes: A review of resource availability, processing/recycling challenges, socio-environmental aspects, and sustainability issues by Tabelin, Carlito Baltazar, Park, Ilhwan, Phengsaart, Theerayut, Jeon, Sanghee, Villacorte-Tabelin, Mylah, Alonzo, Dennis, Yoo, Kyoungkeun, Ito, Mayumi, Hiroyoshi, Naoki

“…•~243 Mt of E-wastes is estimated to be generated globally by 2050.•Complex sulfides, ultrafine particles & “dirty” concentrates are major ore processing…”
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Pyrite oxidation in the presence of hematite and alumina: I. Batch leaching experiments and kinetic modeling calculations by Tabelin, Carlito Baltazar, Veerawattananun, Suchol, Ito, Mayumi, Hiroyoshi, Naoki, Igarashi, Toshifumi

“…Pyrite is one of the most common and geochemically important sulfide minerals in nature because of its role in the redox recycling of iron (Fe). It is also the…”
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Acid mine drainage sources and hydrogeochemistry at the Yatani mine, Yamagata, Japan: A geochemical and isotopic study by Tomiyama, Shingo, Igarashi, Toshifumi, Tabelin, Carlito Baltazar, Tangviroon, Pawit, Ii, Hiroyuki

“…This paper describes the geochemistry of groundwater and its flow system in the closed Yatani mine in southern Yamagata Prefecture, Japan. The mine is located…”
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Simultaneous suppression of acid mine drainage formation and arsenic release by Carrier-microencapsulation using aluminum-catecholate complexes by Park, Ilhwan, Tabelin, Carlito Baltazar, Seno, Kensuke, Jeon, Sanghee, Ito, Mayumi, Hiroyoshi, Naoki

“…Pyrite (FeS2), the most common sulfide mineral in nature, plays an important role in the formation of acid mine drainage (AMD), one of the most serious…”
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Suppression of arsenopyrite oxidation by microencapsulation using ferric-catecholate complexes and phosphate by Park, Ilhwan, Higuchi, Kazuki, Tabelin, Carlito Baltazar, Jeon, Sanghee, Ito, Mayumi, Hiroyoshi, Naoki

“…Mineral processing, pyro- and hydrometallurgical processes of auriferous sulfide ores and porphyry copper deposits (PCDs) generate arsenopyrite-rich wastes…”
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Ammonium thiosulfate extraction of gold from printed circuit boards (PCBs) of end-of-life mobile phones and its recovery from pregnant leach solution by cementation by Jeon, Sanghee, Tabelin, Carlito Baltazar, Park, Ilhwan, Nagata, Yoshito, Ito, Mayumi, Hiroyoshi, Naoki

“…In this study, the ammonium thiosulfate leaching of gold (Au) from printed circuit boards (PCBs) of end-of-life mobile phones and the subsequent recovery of…”
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Suppressive effects of ferric-catecholate complexes on pyrite oxidation by Li, Xinlong, Hiroyoshi, Naoki, Tabelin, Carlito Baltazar, Naruwa, Kosuke, Harada, Chie, Ito, Mayumi

“…Pyrite, a common gangue mineral in complex sulfide ores and coals, is rapidly oxidized in water by ferric ions and dissolved oxygen to form a very acidic and…”
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Suppression of the release of arsenic from arsenopyrite by carrier-microencapsulation using Ti-catechol complex by Park, Ilhwan, Tabelin, Carlito Baltazar, Magaribuchi, Kagehiro, Seno, Kensuke, Ito, Mayumi, Hiroyoshi, Naoki

“…[Display omitted] •Ti(IV) Tris-catecholate complex was synthesized between pH 5 and 12.•Ti-based CME limited the release of As from arsenopyrite.•Mechanism of…”
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Effects of cement addition on arsenic leaching from soils excavated from projects employing shield-tunneling method by Ho, Gia Duc, Tabelin, Carlito Baltazar, Tangviroon, Pawit, Tamamura, Shuji, Igarashi, Toshifumi

“…•As leaching from soils involved in shield excavation was investigated.•Adsorption/desorption on Fe-surfaces is one of the major mechanisms of As leaching.•pH…”
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Solid-phase partitioning and release-retention mechanisms of copper, lead, zinc and arsenic in soils impacted by artisanal and small-scale gold mining (ASGM) activities by Tabelin, Carlito Baltazar, Silwamba, Marthias, Paglinawan, Florifern C., Mondejar, Alissa Jane S., Duc, Ho Gia, Resabal, Vannie Joy, Opiso, Einstine M., Igarashi, Toshifumi, Tomiyama, Shingo, Ito, Mayumi, Hiroyoshi, Naoki, Villacorte-Tabelin, Mylah

“…Artisanal and small-scale gold mining (ASGM) operations are major contributors to the Philippines’ annual gold (Au) output (at least 60%). Unfortunately, these…”
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