AI Article Synopsis
Article Abstract
Bioleaching is one of the well-known methods of metal recovery with Environmental benefits. This process has been extensively used for combating improper waste management issues along with metal reclamation. The aim of this study is to bioleach spent petroleum refinery catalyst at variant pulp densities (PD) (5, 10 and 15%) using microorganisms in acidic pH (1.5-1.6) and mesophilic temperature (30-35 °C). The study includes leaching yields of metals like nickel, molybdenum, copper and aluminum. The three bioleaching experiments with different pulp densities yielded a maximum of more than 90% nickel, 73% copper, 87% molybdenum and 24% aluminum. The results are validated 5, 10, and 15% pulp density and the result is validated with pH, Redox potential, microbial population, sulphate concentration and ferrous iron, concentration. The time saving due to faster nickel dissolution using iron and sulphur oxidizing microorganisms would be economical for the bioleaching process.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7907300 | PMC |
| http://dx.doi.org/10.1007/s13205-021-02686-y | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Use of Coffee Cherry Pulp Extract as an Alternative to an Antibiotic Growth Promoter in Broiler Diets.
Animals (Basel)
January 2025
Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand.
Coffee cherry pulp (CCP) is a by-product of coffee bean production. CCP contains amounts of phenolic compounds that are beneficial for animals. This study evaluated the impact of coffee cherry pulp extract (CCPE) supplementation on growth performance, meat quality, carcass characteristics, serum biochemistry, cecum microbial population, intestinal morphology, and immune and antioxidant responses of broilers.
View Article and Find Full Text PDFUnraveling Various Stacking Modes and Local Structures in Poly(triazine imide) Materials via Low-Dose Electron Microscopy.
J Am Chem Soc
January 2025
Center for Electron Microscopy, South China University of Technology, Guangzhou 510640, China.
Poly(triazine imide) (PTI) materials, a class of layered graphitic carbon nitrides, have garnered significant attention for their unique electronic, thermal, and catalytic properties. These properties can be adjusted through postsynthesis treatments. However, the influence of these treatments on the layer stacking modes and local structures within PTI remains largely unexplored.
View Article and Find Full Text PDFHierarchical Biogenic-Based Thermal Insulation Foam.
ACS Nano
January 2025
Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States.
Biogenic-based foam, renowned for its sustainable and eco-friendly properties, is emerging as a promising thermal insulating material with the potential to significantly enhance energy efficiency and sustainability in building applications. However, its relatively high thermal conductivity, large-pore configurations, and energy-intensive manufacturing processes hinder its widespread use. Here, we report on the scalable, one-pot synthesis of biogenic foams achieved by integrating recycled paper pulp and in situ nanoporous silica formation, resulting in a hierarchical structure comprising both micropores and nanopores.
View Article and Find Full Text PDFPassivating Lattice Oxygen in ZnO Nanocrystals to Reduce its Interactions with the Key Intermediates for a Selective Photocatalytic Methane Oxidation to Methanol.
Angew Chem Int Ed Engl
January 2025
School of Chemistry and Chemical Engineering, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China.
An inevitable overoxidation process is considered as one of the most challenging problems in the direct conversion of methane (CH) to methanol (CHOH), which is limited by the uncontrollable cracking of key intermediates. Herein, we have successfully constructed a photocatalyst, the Fe-doped ZnO hollow polyhedron (Fe/ZnOHP), for the highly selective photoconversion of CH to CHOH under mild conditions. In situ experiments and density functional theory calculations confirmed that the introduction of Fe was able to decrease the energy level of the O 2p orbital, which passivated the activity of lattice oxygen in ZnO nanocrystals.
View Article and Find Full Text PDFRecovery of iron as hematite and separation of trivalent lanthanide ions from spent hard disk magnet leach liquor using [P66614][Cy272] ionic liquid.
RSC Adv
January 2025
Department of Chemistry, Institute of Technical Education and Research, Siksha 'O' Anusandhan Deemed to Be University Bhubaneswar-751030 Odisha India
The widespread use of neodymium-iron-boron (NdFeB) magnets has raised concerns about the environmental impact of their disposal, prompting the need for sustainable recycling strategies. Traditional solvents used in recycling are toxic and flammable, making them risky to use. Ionic liquids are safer and greener options with low vapor pressure, high stability, and less flammability.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!