Catalytic Conversion of Municipal Solid Wastes(MSW) for the Efficient and Clean Utilization of All Components

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Biomass Catalysis".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 2763

Special Issue Editors

Tianjin Recyclable Resources Institute, All China Federation of Supply and Marketing Cooperatives, Tianjin, China
Interests: comprehensive utilization of multiple solid wastes; simultaneous removal of pollutants; clean metallurgy technology; environmental catalysis; catalytic pyrolysis
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Guest Editor
School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China
Interests: utilization of solid wastes; disposal of hazardous wastes; detoxification of heavy metals

Special Issue Information

Dear Colleagues,

Thank you for your interest in publishing papers in Catalysts. We invite you to contribute original and high-quality interdisciplinary research papers devoted to currently important topics in catalysis and related subjects to be published in this Special Issue. Studies significantly advancing our fundamental understanding of and that focus on the catalytic conversion of municipal solid wastes (MSW) for the efficient and clean utilization of all components will be given primary consideration. Field studies are preferred, while papers describing laboratory experiments must demonstrate significant advances in the methodology or mechanistic understanding and have a clear connection to the catalytic pathway and catalysis chemistry. Descriptive, repetitive, incremental or regional-scale studies with limited novelty will not be considered.

Dr. Peng Yuan
Prof. Dr. Baoping Xin
Guest Editors

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Keywords

  • catalytic conversion of typical MSW (sludge, e-wastes, spent new energy materials, waste plastics/textiles, etc.)
  • catalytic removal of pollutants (dioxin/-like, HOPs, POPs, etc.) from the conversion of MSW
  • catalytic pyrolysis of non-metals in MSW (factors, kinetics, simulations, mechanism, etc.)
  • catalytic upgrading of syngas, oil and residues generated during the pyrolysis of MSW
  • efficient or selective recycling and separation of valuable metals from MSW
  • functional materials (catalyst, adsorbent, absorbent, etc.) derived from MSW
  • novel and commercially applicable catalytic conversion strategies and catalysts
  • critical reviews on current or emerging topics in a related area

Published Papers (2 papers)

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Research

10 pages, 8171 KiB  
Article
Hydrochloric Acid Catalyzed Hydrothermal Treatment to Recover Phosphorus from Municipal Sludge
by Kai Liu, Yang Xue, Yawei Zhai, Lisong Zhou and Jian Kang
Catalysts 2024, 14(1), 65; https://doi.org/10.3390/catal14010065 - 15 Jan 2024
Viewed by 829
Abstract
Resource utilization of sludge is critical because traditional sludge treatment methods cause a large amount of nutrient loss. This study investigated the impact of hydrochloric acid quantity, reaction temperature, and time on phosphorus release and migration from municipal sludge during hydrothermal treatment and [...] Read more.
Resource utilization of sludge is critical because traditional sludge treatment methods cause a large amount of nutrient loss. This study investigated the impact of hydrochloric acid quantity, reaction temperature, and time on phosphorus release and migration from municipal sludge during hydrothermal treatment and designed a sludge disposal method for the recovery and utilization of phosphorus resources. We know that hydrochloric acid destroys the complexation of calcium and phosphorus precipitates, leading to the selective transfer of phosphorus to the liquid phase, and that the addition of 1–5% hydrochloric acid corresponds to a phosphorus extraction rate in the range of 0.3–98%. When hydrochloric acid is added, a change in temperature and reaction time has a negligible effect on phosphorus. Phosphorus can be recovered using the liquid product obtained under the optimal hydrothermal reaction conditions (adding 5% HCl at 205 °C for 30 min). After adjusting the pH value and adding the magnesium source, struvite (MgNH4PO4·6H2O) can be precipitated quickly and with high purity. At a cost of USD 27.8/ton of sludge, this method can recover 94% of the phosphorus in the sludge, and the bioavailable phosphorus ratio of the product is 93%, therefore, providing an important alternative to existing phosphorus recovery technologies. Full article
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19 pages, 7195 KiB  
Article
Activation of Peroxymonosulfate Using Spent Li-Ion Batteries for the Efficient Degradation of Chloroquine Phosphate
by Zhenzhong Hu, Jia Luo, Sheng Xu, Peng Yuan, Shengqi Guo, Xuejing Tang and Boxiong Shen
Catalysts 2023, 13(4), 661; https://doi.org/10.3390/catal13040661 - 28 Mar 2023
Cited by 1 | Viewed by 1414
Abstract
Recycling and reusing spent lithium-ion batteries (LIBs) have gained a lot of attention in recent years, both ecologically and commercially. The carbon nanotube-loaded CoFe2O4 (CoFe2O4@CNTs) composite was made using a solvothermal technique utilizing wasted LIBs as [...] Read more.
Recycling and reusing spent lithium-ion batteries (LIBs) have gained a lot of attention in recent years, both ecologically and commercially. The carbon nanotube-loaded CoFe2O4 (CoFe2O4@CNTs) composite was made using a solvothermal technique utilizing wasted LIBs as the starting material and carbon nanotubes as support, and it was used as an efficient peroxymonosulfate (PMS, HSO5) activator to degrade chloroquine phosphate (CQP). Scanning electron microscopy (SEM), transmission electron microscopy (TEM), an energy dispersive spectrometer (EDS), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), and X-ray photoelectron spectroscopy (XPS) were utilized to characterize the physical and chemical properties of the catalyst generated. The impacts of CoFe2O4@CNTs dosage, PMS concentration, reaction temperature, initial pH value, starting CQP concentration, and co-existing ions have undergone extensive experimental testing. In comparison to bare CoFe2O4, the CoFe2O4@CNTs demonstrated increased catalytic activity, which might be attributed to their super electron transport capacity and large surface area. In ideal conditions, the mineralization efficiency and removal efficiency of 10 mg/L CQP approached 33 and 98.7%, respectively. By employing external magnets, the CoFe2O4@CNTs catalyst may be simply recycled and reused several times. The potential reaction mechanism in the CoFe2O4@CNTs/PMS system was also investigated. In summary, this study indicates that CoFe2O4@CNTs generated from spent lithium-ion batteries have a high potential in PMS activation for CQP and other pollutant degradation. Full article
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