Article
Engineering, Environmental
Hongshuai Kan, Ran Mao, Xu Zhu, Yuexin Cui, Yi Liu, Kaifeng Wang, Sainan Sun, Xu Zhao
Summary: A self-catalytic decomplexation scheme is developed using an electrochemical ozone production system to achieve efficient decomplexation and recovery of heavy metal complexes in wastewater. The results show that this method has good technological feasibility for different types of heavy metal complex wastewater.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakina Bombaywala, Abhay Bajaj, Nishant A. Dafale
Summary: This study investigates the dynamics of antibiotic resistance genes (ARGs), shifts in microbiome, and distribution of pathogens under different oxygen levels. The results reveal that ARG count increases in hyperoxic conditions and decreases in hypoxic conditions. Furthermore, an increase in genes related to oxidative damage and mutagenesis is observed in the hyperoxic condition, suggesting a link between oxygen levels and ARG development.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Xi Chen, Jinyao Zhu, Yongfei Ma, Chenyu Zeng, Rui Mu, Zhikang Deng, Zulin Zhang
Summary: A novel approach using ball milling and oxalic acid to modify sludge-based biochar was found to enhance its activation performance for degrading sulfamethoxazole. The system showed high removal rates for sulfamethoxazole at different pH levels and had good tolerance to background electrolytes. Non-radicals and surface-bound radicals were identified as the main contributors to the degradation process. The transformed products generated in the system were less toxic than sulfamethoxazole. After multiple reuse cycles, the system maintained a high removal rate. This study provides valuable insights for the treatment of municipal sludge.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Pengfei Liu, Shaokai Nie, Wenyuan Wang, Shuai Zhang, Bate Bate, Yunmin Chen
Summary: Transportation process of nano scale zero valent iron (nZVI) in clay-rich soils is complicated and crucial for in-situ remediation of contaminated sites. A coupled computational fluid dynamic and discrete element method (CFD-DEM) was used to investigate the interplays of repulsive and attractive forces and the injection velocity of this process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Onja D. Raoelison, Tonoy K. Das, Keegan Guyett, Rachel Merrifield, Ananya Visweswaran, Shruti Indiresan, Kevin Lin Yang, Gregory Pierce, Sanjay K. Mohanty
Summary: Deposition of wildfire residues can reduce the infiltration capacity of biofilters, but scraping the residue layer can restore the capacity. The deposition does not significantly affect the removal of metals and E. coli, as the compost in the filter media can effectively remove the leached metals.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Shuxian Zhang, Renjun Yang, Miaomiao Zhao, Shichang Li, Nuoya Yin, Aiqian Zhang, Francesco Faiola
Summary: Recent studies have found potentially harmful chemicals in everyday items. These chemicals can negatively impact development, but liver metabolism can mitigate their effects. Further research showed that these chemicals significantly affected gene expression, disrupted biological processes, and activated the BMP4 signaling pathway in early embryonic development. Treatment with a liver S9 fraction reduced toxicity and reversed adverse effects through the BMP4 pathway.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
So -young Park, Rini Sharma, Hyung-il Lee
Summary: In this study, two colorimetric thin polymeric films were designed to detect and quantify VX mimic demeton-S in contaminated areas. These films showed high selectivity and reusability, making them suitable for on-site measurements.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Chenhuan Wang, Bin Zhao, Qianqian Wang, Shuaihua Zhang, Qiuhua Wu, Xiaodong Shi
Summary: In this study, a magnetic azo POP (Mazo-POP) was developed for the first time using hydroxy-rich natural kaempferol and low-toxic basic fuchsin as monomers through a diazo coupling reaction. The Mazo-POP exhibited excellent extraction capabilities for phenolic EDCs and was used as a magnetic sorbent for enriching phenolic EDCs from water and fish samples.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
You-Wei Jiang, Gui-Jing Wang, Shuang Zang, Yue Qiao, Qiao Li, Han Zhang, Xian-Shi Wang, Jun Ma
Summary: The increasing demand for dairy products leads to a large amount of wastewater in dairy plants, and disinfection is necessary before wastewater discharge. Disinfection byproducts in disinfected dairy wastewater could negatively affect aquatic organisms. Chlorine and chloramine disinfection of dairy wastewater led to an increase in aliphatic disinfection byproduct concentration. Brominated and iodinated phenolic disinfection byproducts could further react with chlorine/chloramine. High levels of bromide in dairy wastewater can be oxidized to form highly toxic brominated disinfection byproducts (Br-DBPs), accounting for a significant portion of the total content of disinfection byproducts. Br-DBPs contribute to the cumulative risk quotient of disinfection byproducts in wastewater and their impact on aquatic organisms varies depending on the disinfection method used.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jinyong Wang, Dongsheng Wang, Fengshan Zhang, Changkyoo Yoo, Hongbin Liu
Summary: This study improves the accurate monitoring of indoor air quality (IAQ) in subway environments by using an ensemble learning technique, AdaBoostLSTM, and kernel principal component analysis (KPCA). The results show that the proposed ensemble model, KPCA-AdaBoost-LSTM, achieves higher modeling performance in predicting PM2.5.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Wen Wang, Liqiang Qi, Jiahao Zhang
Summary: This study investigated the adsorption capabilities of acid-modified fly ash for escaped ammonia (NH3) and its impact on specific resistance. The results showed that acid activation improved the specific surface area and porosity of fly ash, leading to enhanced NH3 adsorption performance. Sulfuric acid-modified fly ash exhibited the highest adsorption capacity and maintained good specific resistance characteristics, indicating its potential application in flue gas treatment processes.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Mengyu Liang, Huaming Guo, Wei Xiu
Summary: Manganese oxides and organic acids are important factors affecting arsenic mobility. Low concentrations of arsenic are generally inhibited from oxidation by organic acids. However, high concentrations of arsenic can lead to manganese dissolution, thereby facilitating arsenic oxidation and adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Chemistry, Physical
Xinlei Zhang, Fei Wu, Guicun Li, Lei Wang, Jianfeng Huang, Alan Meng, Zhenjiang Li
Summary: This study presents the fabrication of an amorphous-crystalline Ni@NiSx-CdS photocatalyst by assembling an amorphous Ni@NiSx cocatalyst onto CdS. The synergistic effects between the electronic coupling of the amorphous-crystalline interface and the variation of work function achieved improved performance of the photocatalyst in terms of photocatalytic H-2 production rate and quantum efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Green & Sustainable Science & Technology
Meng Zhang, Ting Xu, Qingshuang Zhao, Kun Liu, Daxin Liang, Chuanling Si
Summary: With the aim of preventing CO2 from escaping into the atmosphere, carbon capture and storage (CCS) technology requires suitable materials. Natural cellulose materials, with their eco-friendly properties and remarkable physical and mechanical characteristics, are particularly suitable for CCS. In this study, the application and research progress of cellulose-based materials in carbon capture and conversion are discussed, along with the challenges they face in carbon capture and utilization.
CARBON CAPTURE SCIENCE & TECHNOLOGY
(2024)
Article
Green & Sustainable Science & Technology
Mawda Awag, Eric Mackay, Saeed Ghanbari
Summary: This study investigates the impact of groundwater flow direction on the migration and trapping of CO2 plumes in dipping aquifers during the early stages of post-injection. The results indicate that downdip groundwater flow increases the stretching and mobility of the injected CO2 plume, accelerating its updip migration and increasing the risk of leakage. In contrast, updip groundwater flow reduces the velocity and extent of the plume, reducing the risk of leakage and enhancing trapping mechanisms.
CARBON CAPTURE SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Gang Dong, Guo Wang, Jiarun Cheng, Meng Li, Zhifu Liang, Dongsheng Geng, Weiqiang Tang
Summary: In this study, a La2-xAgxCuO4-delta catalyst was reported, which exhibits enhanced activity and selectivity for CO2RR by tuning the A-site cations with Ag doping. The research reveals that Ag doping can tune the electronic structure of Cu2+ ions, improving the adsorption/activation of crucial reaction intermediates, and shifts the reaction pathways, thereby promoting the formation of multi-carbon products.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Green & Sustainable Science & Technology
Chaoqi Ge, Menglong Sheng, Ye Yuan, Fei Shi, Yi Yang, Song Zhao, Jixiao Wang, Zhi Wang
Summary: In this study, a cost-effective modified pore-optimized MOF-808 was developed and used to fabricate high-performance CO2 capture mixed matrix composite membranes (MMCMs). The prepared MMCM showed remarkable CO2 permeance and selectivity, demonstrating potential applications in various gas purification fields.
CARBON CAPTURE SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Yan Chen, Yingpeng Cheng, Yue Liu, Yaqian Wang, Yi Qu, Daochuan Jiang, Zhaozhao Qin, Yupeng Yuan
Summary: In this study, we engineered graphitic carbon nitride nanosheets with long-lived shallow trapping states achieved through an n-pi * electronic transition, leading to significantly enhanced photocatalytic activity.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
J. Niklas Hausmann, Prashanth W. Menezes
Summary: Electrocatalytic systems are difficult to understand, especially when they involve heterostructured electrodes with multiple interfaces. Current analytical methods are insufficient to handle this complexity, resulting in a lack of understanding of fundamental catalytic aspects. Therefore, it is necessary to address key electrocatalytic and analytical points before proposing new hypotheses.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Stephen Kristy, Scott Svadlenak, Adam S. Hoffman, Simon R. Bare, Konstantinos A. Goulas
Summary: This study reports the effects of alloying Cu into silica supported Pd nanoparticles on the catalytic activity, surface composition, and particle structure during CO oxidation. By alloying Cu into Pd nanoparticles, the inhibition of CO oxidation by NO is suppressed without any loss of CO oxidation activity.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
