Anaerobic digestion (AD), as an eco-friendly biological process, shows potential for the decomposition of leachate produced by waste incineration power plants. In this study, the effects of Fe oxides nano-modified pumice (FNP) were investigated on the fresh leachate AD process. Firstly, a simple hydrothermal method was used to prepare FNP, then introduced into the UASB reactor to evaluate its AD efficiency. Results showed that the inclusion of FNP could shorten the lag phase by 10 days compared to the control group. Furthermore, cumulative methane production in the FNP group was enhanced by 20.11%. Mechanistic studies suggested that hydrogenotrophic methanogenesis in the FNP group was more pronounced due to the influence of key enzymes (i.e., dehydrogenase and coenzyme F420). Microbial community analysis demonstrated that FNP could enhance the abundance of Methanosarcina, Proteobacteria, Sytrophomonas, and Limnobacter, which might elevate enzyme activity involved in methane production. These findings suggest that FNP might mediate interspecies electron transfer among these microorganisms, which is essential for efficient leachate treatment.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jes.2024.08.006 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Fe oxides nano-modified pumice enhances hydrogenotrophic methanogenesis in anaerobic digestion: Performance and mechanism of microbial community.
J Environ Sci (China)
August 2025
CSCEC AECOM Consultants Co., Ltd., Lanzhou 730000, China.
Anaerobic digestion (AD), as an eco-friendly biological process, shows potential for the decomposition of leachate produced by waste incineration power plants. In this study, the effects of Fe oxides nano-modified pumice (FNP) were investigated on the fresh leachate AD process. Firstly, a simple hydrothermal method was used to prepare FNP, then introduced into the UASB reactor to evaluate its AD efficiency.
View Article and Find Full Text PDFBiodegradable chitosan-based films decorated with biosynthetic copper oxide nanoparticle for post-harvest tomato preservation.
Int J Biol Macromol
March 2025
School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China. Electronic address:
Postharvest fruit decay caused by pathogens is an important factor leading to product waste and economic losses, and fruit coating is considered an effective strategy to solve this problem due to its simple operation and effectiveness. In this study, nano modified chitosan film (CSC) was created by mixing chitosan (CS) and copper oxide nanoparticles (CuO NPs) synthesized using abandoned Ficus carica fruit. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectra indicated the formation of intermolecular interactions between CS and CuO NPs in the composite film.
View Article and Find Full Text PDFResidual effects of biochar and nano-modified biochar on growth and physiology under saline environment in two different genotype of Oryza sativa L.
J Environ Manage
January 2025
School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China. Electronic address:
Soil salinity is represent a significant environmental stressor that profoundly impairs crop productivity by disrupting plant physiological functions. To mitigate this issue, the combined application of biochar and nanoparticles has emerged as a promising strategy to enhance plant salt tolerance. However, the long-term residual effects of this approach on cereal crops remain unclear.
View Article and Find Full Text PDFMesoporous Silica Nano-Modified Ginsenoside Rh2 Promote Tumor Immunosuppression and Inhibit Lung Cancer Development through the PD-1/PD-L1 Pathway.
Ann Clin Lab Sci
September 2024
Department of Thoracic Surgery, First People's Hospital of Shuangliu District, Chengdu, Sichuan, China.
Objective: To explore the mechanism for mesoporous silica nano-modified ginsenoside Rh2 promoting tumor immunosuppression in lung cancer through PD-1/PD-L1 pathway.
Methods: Firstly, G-Rh2-MSN were prepared and lung cancer A549 cells were cultured. The following groups were set up to analyze whether G-Rh2-MSN down-regulates PD-1/PD-L1 to promote tumor immunity, inhibit activities of lung cancer cells, and promote apoptosis: Model control group, G-Rh2 group, G-Rh2-MSN group, G-Rh2-MSN+PT001 group, G-Rh2-MSN+nivolumab group, G-Rh2-MSN+Durvalumab group, G-Rh2-MSN+atezolizumab group, and G-Rh2-MSN+nivolumab+Durvalumab group.
Nano-modified viruses prime the tumor microenvironment and promote the photodynamic virotherapy in liver cancer.
J Biomed Sci
January 2024
Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, 10051, Taiwan.
Article Synopsis
- - As of 2020, hepatocellular carcinoma (HCC) is a leading cause of cancer-related deaths globally, and combining immune checkpoint inhibitors with other treatments shows promise for unresectable cases.
- - Researchers developed a method to enhance virotherapy using iron oxide nanoparticles (ION) combined with adeno-associated viral type 2 (AAV2), which improves macrophage polarization and could create a better environment for immune responses against tumors.
- - In a study of mice with HCC, treatment with the ION-AAV2 combination resulted in significantly reduced tumor weight, increased M1 macrophage levels, and enhanced CD8 T cell infiltration, indicating a shift from "cold" to "hot" tumors, which
Want 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!