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Jiangang Ku, Miguel A. Valdez-Grijalva, Rongdong Deng, Weiran Zuo, Qidi Chen, Hua Lin and Adrian R. Muxworthy
We determine the role of particle shape in the type of magnetic extraction processes used in mining. We use a micromagnetic finite element method (FEM) to analyze the effect of external magnetic fields on the magnetic structures of sub-micron magnetite p...
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Ugo Bardi
The concept of recovering minerals from seawater has been proposed as a way of counteracting the gradual depletion of conventional mineral ores. Seawater contains large amounts of dissolved ions and the four most concentrated metal ones (Na, Mg, Ca, K) a...
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Walter Leal Filho, Ismaila Rimi Abubakar, Cintia Nunes, Johannes (Joost) Platje, Pinar Gökcin Ozuyar, Markus Will, Gustavo J. Nagy, Abul Quasem Al-Amin, Julian David Hunt and Chunlan Li
The rapidly increasing global populations and socio-economic development in the Global South have resulted in rising demand for natural resources. There are many plans for harvesting natural resources from the ocean floor, especially rare metals and mine...
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Deska Lismawenning Puspitarum, Gita Safitri, Harlina Ardiyanti, Mohamad Samsul Anrokhi
Pág. 192 - 196
Characteristics and Mineral Content of Lampung Tengah Ironsands. This study is carried out to investigate the characteristics and mineral content of ironsands from Bekri, Lampung Tengah Regency by using precipitation method. The research was conducted in...
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Michael A. Abrams
Gases contained within near-surface marine sediments can be derived from multiple sources: shallow microbial activity, thermal cracking of organic matter and inorganic materials, or magmatic-mantle degassing. Each origin will display a distinctive hydroc...
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Dávid Havasi, György Pátzay, Gábor Stelén, József M. Tukacs, László T. Mika
Pág. 283 - 287
The biomass-based production of levulinic acid requires aqueous mineral acid as catalyst. In the present study, the possible reuse of sulfuric acid in the biomass conversion was investigated. The acid can either be reused after extracting the product or ...
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Elena M. Balboa, Rosendo Millán, Herminia Domínguez and Cristina Taboada
Sargassum muticum was processed by hydrothermal extraction under previously optimized non-isothermal conditions (up to 187 °C). The alginate free crude hydrolysate was further concentrated by ultrafiltration, operating in diafiltration mode to produce an...
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Jérôme Laganière, Antra Boca, Helga Van Miegroet and David Paré
Trembling aspen covers a large geographic range in North America, and previous studies reported that a better understanding of its singular influence on soil properties and processes is of high relevance for global change questions. Here we investigate t...
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Ming Kang, Huanzhao Guo, Wende Zhu, Xianrong Luo and Jianwen Yang
The anionic and cationic species of elements from deeply buried deposits migrate to the near surface driven by various geological forces. The geoelectrochemical exploration method (GEM), derived from CHIM, consists of the application of an electric field...
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Lucía Inés Martín,Denis Marchal,Silvia Barredo,Claudio Naides,Silvia Blanco
Pág. 345 - 381
The fissility is the ability of some rocks to split along relatively smooth surfaces parallel to the bedding. This property observed mostly in fine-grained rocks is particularly expressed in outcrops, where rocks are subjected to weathering processes. Mo...
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La Ode Arham, Fika Rofiek Mufakhir, Hendra Saputra
Pág. 103 - 109
Research on the extraction of gold ore from Pesawaran, , Lampung, Indonesia, was carried out using the agitation leaching method in cyanide solution. This study aimed to obtain information on the use of conventional cyanidation methods for extracting gol...
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La Ode Arham, Fika Rofiek Mufakhir, Hendra Saputra
Pág. 103 - 109
Research on the extraction of gold ore from Pesawaran, , Lampung, Indonesia, was carried out using the agitation leaching method in cyanide solution. This study aimed to obtain information on the use of conventional cyanidation methods for extracting gol...
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Nadegda Rykusova,Oleksii Shestopalov,Liudmyla Shchukina,Larysa Yashchenko,Iraida Stanovska,Arsen Muradian,Valentyna Ocheretna
Pág. 21 - 27
This paper addresses the prospects of recycling waste from oil and gas extraction in order to manufacture building materials. The principal possibility has been established to apply the examined samples of drilling sludge as the basic raw material and a ...
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Tuija Vähäkuopus, Tommi Kauppila, Jari Mäkinen, Antti E. K. Ojala and Samu E. Valpola
Human land-use activities, especially in the peatlands, are under consideration as the mitigation and lowering of CO2 emissions from land-use practices is needed to address climate change. In Finland, approximately one third of the land surface is covere...
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Yuan-Hang Zhang, Xiao-Jie Wang, Xu-Zhen Zhang, Maoukouf Saad and Rui-Jie Zhao
The deep sea harbors abundant mineral, oil, and gas resources, making it highly valuable for commercial development, including the extraction of minerals. Due to the relatively large particle size of these minerals, how they interact with fluids is signi...
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Xiuying Xu, Changhao Fu, Yingying Gao, Ye Kang and Wei Zhang
The origin of seeds is a crucial environmental factor that significantly impacts crop production. Accurate identification of seed origin holds immense importance for ensuring traceability in the seed industry. Currently, traditional methods used for iden...
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Barbara Wisniowska-Kielian, Barbara Filipek-Mazur and Florian Gambus
The study aimed to compare the effect of urea fatty fraction (UFF) and Pulrea® (urea fertilizer) on plant yield and selected plant and soil parameters determined after the plants were harvested. UFF is a by-product of essential unsaturated fatty acids (U...
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Andrés Cardenas, Maria I. Dias, Catarina Diamantino, Edgar Carvalho, Dulce Russo and Rosa Marques
New insights about the geochemical behavior of actinides and lanthanides in an old uranium mine are provided for the first time in this work. Fifteen samples (water, soil, and sediments) were collected inside and outside the Quinta do Bispo old mine (Por...
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Simone Perna, Zainab Ali AL-Qallaf and Qaisar Mahmood
Modern urban societies generate tremendous amounts of hazardous wastes, including toxic organics and metals. Toxic metals harm plants and pose a risk to human health; examples of them are copper (Cu), zinc (Zn), palladium (Pb), and cadmium (Cd). Wetland ...
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Ying Yang, Hailei Kou, Zhenghui Li, Yonggang Jia and Chaoqi Zhu
The study of the physical and mechanical properties of marine soil is of great importance for marine geohazard prediction, submarine energy extraction, and submarine foundation design. In this study, a series of basic geotechnical tests and triaxial comp...
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