Sustainability of Valuable Metals Recovery from Hazardous Industrial Solid Wastes: The Role of Mechanical Activation

Odebiyi, Oluwasegun Samuel; Du, Hao; Liu, Biao; Wang, Shaona

doi:10.1007/s40831-022-00579-9

Cited by 15 publications

(4 citation statements)

References 125 publications

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“…The enhancement in leachability through the MCA-assisted process stems from the creation of new surfaces, thereby instigating significant changes in chemical reactivity, material structure, and the release of excess energy. 16,19 In our previous work, the MCA process demonstrated a significantly superior leaching efficiency for V in the presence of Fe 2 O 3 , achieving 98.1%, compared to only 72.7% for the non-MCA treated slag. 20 While MB or MCA alone can facilitate V extraction from vanadium slag, the majority of Cr remains in the tailings.…”

Section: Introductionmentioning

confidence: 83%

“…The mechanochemical activation (MCA) hydrometallurgical process represents a recent cutting-edge technology for the efficient recovery of economically valuable metals from industrial solid waste and refractory ore. − This process significantly enhances leaching efficiency compared to non-activated samples. The enhancement in leachability through the MCA-assisted process stems from the creation of new surfaces, thereby instigating significant changes in chemical reactivity, material structure, and the release of excess energy. , In our previous work, the MCA process demonstrated a significantly superior leaching efficiency for V in the presence of Fe 2 O 3 , achieving 98.1%, compared to only 72.7% for the non-MCA treated slag . While MB or MCA alone can facilitate V extraction from vanadium slag, the majority of Cr remains in the tailings.…”

Section: Introductionmentioning

confidence: 99%

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Oxidative Leaching of Vanadium and Chromium from Vanadium Slag via a Mechanochemical Activation─Assisted Microbubbles Method

Liu,

Lv,

Wang

et al. 2024

ACS Sustainable Resour. Manage.

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Vanadium slag is the primary source for vanadium extraction and also a source for chromium production owing to containing a considerable amount of chromium. However, it is challenging to extract vanadium and chromium in a green, safe, simple, and efficient way under ambient conditions. Here we report a facile process for simultaneous extraction of vanadium and chromium from vanadium slag via a mechanochemical activation− assisted microbubbles method. The vanadium slag subjected to mechanochemical activation exhibited markedly enhanced leaching efficiencies for both vanadium and chromium under atmospheric pressure compared to that of the slag that did not undergo mechanochemical activation. This enhancement in leaching efficiency can be primarily attributed to the synergistic effect of the mechanochemical treatment and microbubbles. The microbubbles enhance the generation of reactive oxygen species in an alkaline medium, while the mechanochemical activation process increases the utilization efficiency of these reactive oxygen species due to the improved interfacial reactivity of the vanadium slag. This study introduces a promising alternative for the environmentally responsible treatment of vanadium slag, showcasing a novel method for extracting vanadium and chromium through a mechanochemical activation-assisted microbubbles approach.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Oxidative Leaching of Vanadium and Chromium from Vanadium Slag via a Mechanochemical Activation─Assisted Microbubbles Method

Liu,

Lv,

Wang

et al. 2024

ACS Sustainable Resour. Manage.

Self Cite

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“…Waste management is intended to reduce the adverse effects of waste on health, the environment, or aesthetics [17][18][19][20][21][22][23]. Throughout most of history, the amount of waste generated by humans was insignificant due to low population density and low societal levels of the exploitation of natural resources [24][25][26][27][28][29][30][31][32]. Common waste produced during pre-modern times was mainly ashes and human biodegradable waste, and these were released back into the ground locally, with minimum environmental impact [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

“…It is evident from some African authors like Kaseva and Mbuligwe [26] and Rotich et al [25] that Kenya and other urban areas in Africa have been experiencing serious solid waste management failures. Urban councils often failed to provide adequate waste management services due to factors such as a lack of capacity to adequately adapt the technology-intensive methods from the developed world [27][28][29]. According to Manga et al [30] and Oosterveer and Van Vliet [31], other management barriers include limited financial powers, lack of resources, and poor governance.…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting Solid Waste Management in Kapchorwa Town Council, Kapchorwa District

Allan¹

2023

IDOSR JES

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The problem of Solid Waste Management (SWM) has become a major problem in the upper areas of developing countries. In Uganda, the menace of urban waste has further been worsened by the increasing population. This study was done to assess the level of knowledge and practices about SWM within the Kapchorwa Town Council (KTC) Kapchorwa district in eastern Uganda. To achieve the objectives, a descriptive cross-sectional study was carried out and waste characteristics, collection, disposal, stakeholder roles, and waste management responsibilities were analyzed. Results indicate that waste is predominantly biodegradable (66%) and generated mainly within households, with no proper collection rate disposed of, crude dumping was the major means of disposal used (72.5%). The council is under capacity to handle waste management demands and their services are poor or nonexistent which has led to the use of crude dumping which has risk health. The strategy for solid waste management is failing because the community members are not cooperative. In conclusion, waste management practices in KTC are poor and they reflect a gap in knowledge about effective waste management within KTC, community members should be regularly educated on the link between improper solid waste management and disease outbreaks and the safe SWM practices such as reuse and recycling. Keywords: Waste management, Kapchorwa district, urban waste, disease outbreaks

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Preparation of a lightweight calcium silicate board using chlorine-containing Ti-extraction blast furnace slag and diatomite

Li,

Jiang,

Yang

et al. 2024

J Mater Cycles Waste Manag

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Sustainability of Valuable Metals Recovery from Hazardous Industrial Solid Wastes: The Role of Mechanical Activation

Cited by 15 publications

References 125 publications

Oxidative Leaching of Vanadium and Chromium from Vanadium Slag via a Mechanochemical Activation─Assisted Microbubbles Method

Oxidative Leaching of Vanadium and Chromium from Vanadium Slag via a Mechanochemical Activation─Assisted Microbubbles Method

Factors Affecting Solid Waste Management in Kapchorwa Town Council, Kapchorwa District

Preparation of a lightweight calcium silicate board using chlorine-containing Ti-extraction blast furnace slag and diatomite

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