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Katarzyna Leszczynska-Sejda, Andrzej Chmielarz, Dorota Kopyto, Michal Ochmanski, Grzegorz Benke, Arkadiusz Palmowski, Agnieszka Sobianowska-Turek, Przemyslaw Los, Agnieszka Fornalczyk, Michal Zygmunt and Karolina Goc
This paper presents comparative experimental results for the single-stage and two-stage counter-current acid leaching of battery masses, with the addition of a booster, from different types of LIB waste. Three different types of battery masses were used ...
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NDiarel Baidy Ba, Radhia Souissi, Faouzi Manai, Imad Khalil Taviche, Bochra Bejaoui, Mohamed Abdallahi Bagga and Fouad Souissi
Since 2004, the processing of the iron oxide?copper?gold (IOCG) ore of Guelb Moghrein, Akjoujt, Mauritania, has resulted in the generation of approximately 40 million tons of mine tailings. The storage of these tailings poses significant environmental ch...
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Haibo Li, Zhonghua Tang and Dongjin Xiang
Acid in situ leaching (ISL) is a common approach to the recovery of uranium in the subsurface. In acid ISL, there are numerous of chemical reactions among the injected sulfuric acid, groundwater, and porous media containing ore layers. A substantial amou...
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Aigul Koizhanova, Bagdaulet Kenzhaliyev, David Magomedov, Emil Kamalov, Mariya Yerdenova, Akbota Bakrayeva and Nurgali Abdyldayev
This paper provides an overview of hydrometallurgical copper extraction studies in which liquid extraction technology has been used with four copper deposits of different compositions. The sulfuric acid consumption rate and copper extraction efficiency, ...
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Wen Dong, Ruichen Wang, Huaien Li, Xiao Yang, Jiake Li, Hui Wang, Chunbo Jiang and Zhe Wang
This study investigated the removal of cadmium (Cd) and lead (Pb) from the soil through phytoremediation using ryegrass combined with chelating agents. Soil leaching experiments were employed to determine the extraction efficiencies of chelating agents, ...
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Yizhuo Wang, He Li and Shaohua Lin
In this study, we studied the influence of the dosage of modified bamboo charcoal (KAM-500-400-3) on the fixation effect of single Cu(II)-contaminated and mixed Cu(II)?Cd(II)-contaminated sediment. The results showed that it could effectively fix the hea...
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Xuesong Cui, Minhui Xiao, Ran Tao, Rui Hu, Hans Ruppert, Willis Gwenzi and Chicgoua Noubactep
Granular metallic iron (gFe0) materials have been widely used for eliminating a wide range of pollutants from aqueous solutions over the past three decades. However, the intrinsic reactivity of gFe0 is rarely evaluated and existing methods for such evalu...
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Shaotian Zhang, Dafu Wei, Xiang Xu and Yong Guan
It is still crucial to improve the mechanical characteristics of polyvinyl alcohol (PVA) films without resorting to chemical cross-linking. In this study, boric acid (BA) was used to enhance the mechanical characteristics of PVA films while maintaining t...
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Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Sujatha Sivarethinamohan, Balamurugan Karupaiya Sathaiah, Gobinath Ravindran, Senthil Kumar Muniasamy and Gasim Hayder
Most water systems that support ecosystems and feed humans are depleted or stressed. Aquifer characteristics, topography, subsurface activities, climate, and geochemical processes regulate groundwater availability, a reliable source of fresh water. Globa...
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Fuxin Zheng, Yanguo Teng, Yuanzheng Zhai, Jingdan Hu, Junfeng Dou and Rui Zuo
Since the 1990s, sandstone-type uranium in the northern basin of China has become the main target for mining. Uranium mining can cause a series of impacts on the environment. A conceptual model of the geo-environment for sandstone-type uranium in norther...
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