Review
Environmental Sciences
Anna Christine Trego, Simon Mills, Gavin Collins
Summary: Anaerobic digestion is recognized as a sustainable method for waste management, producing methane-rich biogas. Different specialized granules, including anaerobic and aerobic granules, have opened up new opportunities in wastewater treatment and resource recovery biotechnology. Each type of granule has unique characteristics, biochemical processes, and microbial community compositions.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Agricultural Engineering
Dong Li, Yiwen Dong, Shuai Li, Pengfei Jiang, Jie Zhang
Summary: This article explores the use of biochar and increased HRT to enhance the recovery of stored anaerobic ammonia oxidation granular sludge. The results show that biochar accelerates the recovery process, shortening the time needed for nitrogen removal and re-granulation. It also promotes the growth of Anammox bacteria and improves the stability of the bioreactor. The optimized community structure of biochar makes the system more resistant to risks.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
XiaoTong Wang, Hong Yang, Yang Su, XuYan Liu, JiaWei Wang
Summary: The study found that red AnGS had higher biomass content, EPS, and activity compared to brown AnGS, with red AnGS exhibiting nitrification and brown AnGS exhibiting denitrification. Immobilization improved the contribution rate of Anammox and involved different regulatory mechanisms.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
C. Polizzi, T. Lotti, A. Ricoveri, R. Campo, C. Vannini, M. Ramazzotti, D. Gabriel, G. Munz
Summary: This study highlights the importance of controlling mineral precipitation on granular sludge systems treating wastewaters prone to inert precipitation to ensure long-term stability. Severe mineral precipitation on the granules' surface can lead to deteriorated reactor performance and biomass activity, with potential mechanisms including substrate diffusion limitation, insufficient mixing, and biofilm erosion. Gravimetric selection proved effective in restoring process performance affected by mineral precipitation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Yang Su, Hong Yang, Xiaotong Wang, Xuyan Liu
Summary: This study demonstrated that the anammox process can stably operate in high-salt environments with the selection of functional bacteria genus Unclassified Candidatus Brocadiaceae. Nitrogen accumulation cannot be alleviated by simply reducing substrate concentration at low temperatures. Adding proper amount of active sludge can quickly improve nitrogen removal performance in adverse conditions and restore it to normal levels.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Chongjun Chen, Ying Jiang, Xinyi Zou, Menglei Guo, He Liu, Minhua Cui, Tian C. Zhang
Summary: This study investigated how particle size affects the physicochemical characteristics, nitrogen conversion activity, and microbial community in anammox sludge granules. The results showed that larger particle sizes correlated with higher wet density, settling velocity, and removal efficiency of ammonium and nitrite. High-throughput sequencing revealed that microbial richness and diversity decreased and then increased with increasing particle size. Granular sludge with a particle size of 1.0-1.5 mm had the largest EPS content and PN/PS ratio. To maintain high nitrogen removal performance, particle sizes of 1.5-2.0 mm should be selected.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Junxiang Xie, Tianyi An, Adams Mabruk, Yayi Wang, Jianfang Wang, Chongjun Chen, Tian C. Zhang
Summary: Different biochars were added to the reactors, resulting in faster start-up of Anammox and improved structural and functional characteristics of the granular sludge.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Chao Pan, Dongdong Xu, Ziyang Dong, Wenji Li, Da Kang, Wenda Chen, Yiyu Li, Meng Zhang, Baolan Hu, Ping Zheng
Summary: This study investigated the effects of different cooling modes on the properties of anammox granular sludge, finding that temperature decrease can improve its physical preservability and impact the preservation rate of functional bacteria. The findings, especially the induction of dormancy in AnAOB, contribute to understanding the effect of temperature decrease on AnGS and promoting the development of preservation technology for AnGS.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Da Kang, Ping Zheng, Wenji Li, Dongdong Xu, Wenda Chen, Chao Pan
Summary: This study investigates the stratification patterns of anammox granular sludge bed (GSB) and its relationship with microbial activity and community under different nitrogen loading rates (NLRs). Results show that the particle size distribution of GSB is significantly correlated with the nitrogen removal rate (NRR) of the anammox system. The microbial community tends to coverage at high NLR. Additionally, the particle size distribution patterns of GSB may serve as a potential auxiliary indicator to reflect microbial activity and community.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Hui-Min Fu, Meng-Wen Peng, Peng Yan, Zhen Wei, Fang Fang, Jin-Song Guo, You-Peng Chen
Summary: The formation and stability of nanobubbles play a crucial role in maintaining the structure and stability of the AnGS system, with nanobubbles increasing the space and pressure between cells and favoring the formation of porous structures in granules. Additionally, nanobubbles help to avoid granular disintegration and flotation caused by excessive secretion of extracellular polymeric substances, thus contributing to efficient mass transfer in the AnGS system.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Victor Guzman-Fierro, Jose Sanhueza, Constanza Arriagada, Luis Pereira, Victor Campos, Juan Jose Gallardo, Marlene Roeckel
Summary: The study showed a direct association between specific nitrification activity (SNA) and the specific surface of granules, highlighting the importance of the outer layer in the nitrification process. Furthermore, specific anammox activity (SAA) varied when faced with real industrial and synthetic substrates, with SAA increasing at higher diameter ranges in industrial wastewater. Granular sedimentation rate could be used as a routine technique for controlling and starting up PN-A reactors, with organic matter potentially beneficial for granular sludge stability and nitrogen removal.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Chongjun Chen, Ying Jiang, Jingjing Liu, Mabruk Adams, Yaofeng Chang, Menglei Guo, Junxiang Xie, Jiawei Xie
Summary: This study evaluated the long-term stress effects of varying concentrations of organic matter on nitrogen removal, physiochemical characteristics, and microbial community of anammox granular sludge in UASB reactors. The results showed that high COD concentrations caused disintegration of anammox granular sludge and changes in microbial community structure.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agricultural Engineering
Jiarui Fan, Rui Du, Qingtao Liu, Cong Li, Yongzhen Peng
Summary: Microbial interactions between Anammox and heterotrophic bacteria were analyzed in this study. The study found that the proportion of Anammox microorganisms varied in different granule sizes and heterotrophs could stimulate Anammox activity through organic carbon. The results indicate that efficient nitrogen removal can be achieved by regulating the distribution of sludge size and organic carbon source.
BIORESOURCE TECHNOLOGY
(2022)
Review
Environmental Sciences
Mabruk Adams, Junxiang Xie, Arthur wendinso Judicael Kabore, Yaofeng Chang, Jiawei Xie, Menglei Guo, Chongjun Chen
Summary: This article discusses the application of Anammox granular sludge, including its properties, influencing factors, limitations, cultivation, and research progress. The granulation of Anammox sludge is considered to be the most feasible option for large-scale Anammox application.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
M. Sarvajith, Y. V. Nancharaiah
Summary: Treatment and safe disposal of excess microbial sludge in wastewater treatment plants is challenging due to pathogens, economic and regulatory issues. This study explored the recovery of biopolymers from different biological treatment systems and found that alginate-like exopolymer (ALE) was the dominant biopolymer in all systems. ALE extraction significantly reduced biosolids content and mitigated sludge management challenges, pathogen spread, and improved resource recovery in wastewater treatment plants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Meng Zhang, Bin Ji, Yu Liu
Summary: Future municipal wastewater treatment processes should shift towards multiple-functionality of synergetic water-resource-energy recovery and carbon neutral for maximizing environmental and economic sustainability. Current treatment technologies are unlikely to meet these requirements, while the amicroalgal-bacterial granular sludge process may provide a promising option for achieving multiple goals of municipal wastewater reclamation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Dongdong Xu, Siying Ying, Yihang Wang, Meng Zhang, Wenji Li, Haoyang Zheng, Wenda Chen, Chao Pan, Da Kang, Ping Zheng
Summary: A novel Sequential Anammox and Denitrification (SAD) system was developed in this study, using solid carbon source (SCS) to achieve efficient total nitrogen (TN) removal. The long-term operation results demonstrated the effectiveness of the SAD system in TN removal, and microbial community analysis was conducted.
Article
Environmental Sciences
Huifang Sun, Hang Liu, Meng Zhang, Yu Liu
Summary: The study developed a CMMBBR system for simultaneous COD and nitrogen removal, with effluent further reclaimed to ultra-clean water by RO unit. The CMMBBR system showed excellent removal efficiency and low energy consumption, providing a promising alternative for municipal wastewater reclamation.
Article
Biotechnology & Applied Microbiology
Bin Ji, Shulian Wang, Mahamalage Rochelle Udani Silva, Meng Zhang, Yu Liu
Summary: This study investigated a eukaryotic microalgae dominated microalgal-bacterial granular sludge process for municipal wastewater treatment under simulated natural diel cycles, achieving excellent removal performances in terms of organics, ammonia-N and phosphate-P. Microbial assimilation by microalgae and bacteria was identified as the main mechanism for the observed removal of organics, ammonia and phosphate, with Chlorophyceae playing a key role in phosphorus removal and Alphaproteobacteria potentially responsible for ammonia removal. It is expected that this study can provide an environmentally sustainable option for municipal wastewater treatment.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Environmental Sciences
Shulian Wang, Bin Ji, Meng Zhang, Jun Gu, Yingqun Ma, Yu Liu
Summary: Tetracycline was found to inhibit ammonia-N removal in non-aerated microalgal-bacterial granular sludge by mainly affecting microalgal assimilation and chlorophyll production. The presence of tetracycline also led to decreased dissolved oxygen concentration and inhibition of microalgae containing green algae and cyanobacteria, indicating a decoupling of symbiosis in the microalgal-bacterial granular sludge.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Siyu Wang, Hang Liu, Jun Gu, Meng Zhang, Yu Liu
Summary: An integrated AnfMBR-RO-chlorination process was developed to address the drawbacks of excessive sludge generation and high energy consumption in municipal wastewater reclamation. The process showed high removal rates of COD, phosphate, and NH4+-N, and significantly reduced energy consumption and greenhouse gas emissions compared to current methods, bringing municipal wastewater reclamation closer to carbon neutrality and water sustainability.
Article
Environmental Sciences
Junyuan Ji, Yaping Luan, Xiaotong Zhu, Pan Sun, Mengchun Gao, Yangguo Zhao, Liang Guo, Zonglian She, Chunji Jin, Shuang Ding, Meng Zhang
Summary: This study investigated the effects of combined stress of Ni(II) and salinity on anammox sludge in terms of performance, activity, functional enzyme, and extracellular polymeric substance (EPS). Results showed that Ni(II) concentration played a more important role in anammox performance and specific activity, while functional enzymes and EPS content were inhibited by the combined stress. These findings provide insights into the combined effect of nickel and salinity on the anammox system and have important implications for treating metal-rich saline wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Dongdong Xu, Wenda Chen, Chao Pan, Wenji Li, Leiyan Guo, Da Kang, Ping Zheng, Baolan Hu, Meng Zhang
Summary: In this study, a novel reactor called Ducan was developed to promote the production of anammox sludge. The Ducan reactor was found to increase the sludge production rate by 96.2% compared to the control group. By controlling the balance between new-born anammox granular sludge and wash-out anammox sludge, the production of new-born anammox granular sludge was enhanced.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Wenji Li, Lin Zhu, Chao Pan, Wenda Chen, Dongdong Xu, Da Kang, Leiyan Guo, Qingqing Mei, Ping Zheng, Meng Zhang
Summary: This study compared the bioavailability of chemical sulfur (chem-S-0) and biogenic sulfur (bio-S-0) in removing nitrate. The results showed that the conversion rate and removal efficiency of nitrate in the bio-S-0 system were 2.23 and 2.04 times higher than those in the chem-S-0 system. It was also found that the organic substances on the surface of bio-S-0 contributed to its better dispersibility and enhanced bacterial adhesion efficiency.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Agricultural Engineering
Wenda Chen, Huiming Tang, Wenji Li, Da Kang, Baolan Hu, Ping Zheng, Meng Zhang
Summary: By comparing an ecological anaerobic reactor (EAR) with a physical anaerobic reactor (PAR), it was found that EAR achieved a higher organic loading rate (OLR) due to its ecological distribution, while PAR had a lower OLR due to its physical distribution. These findings suggest that promoting ecological distribution and weakening hydraulic selection can improve reactor performance.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Wenda Chen, Huiming Tang, Dongdong Xu, Wenji Li, Chao Pan, Leiyan Guo, Da Kang, Ping Zheng, Meng Zhang
Summary: This study investigated the aggregation caused by calcification in an anaerobic reactor operated with high calcium-containing wastewater. The results showed that high influent calcium led to granular sludge aggregation, which further resulted in rapid deterioration in bioavailability, leading to decreased COD removal efficiency.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Chao Pan, Wenji Li, Dongdong Xu, Wenda Chen, Leiyan Guo, Da Kang, Baolan Hu, Ping Zheng, Meng Zhang
Summary: This study investigated the activity descent and its mechanism of anammox granular sludge (AnGS) during long-term cryopreservation. The cryopreservation process of AnGS was divided into three stages: plummeting stage, maintaining stage, and descending stage in terms of activity index. A significant positive correlation was found between the ATP pool and the three-stage activity descent of AnGS. The ATP pool was replenished through the sequential consumption of endogenous energy substances, maintaining the activity of AnGS.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Ronghua Xu, Hongcan Cui, Fuqiang Fan, Meng Zhang, Shasha Yuan, Depeng Wang, Zhihao Gan, Zhong Yu, Chao Wang, Fangang Meng
Summary: This study successfully combined sequencing batch operation with a pilot-scale anaerobic biofilm-modified anaerobic/aerobic membrane bioreactor to achieve anaerobic ammonium oxidation (anammox) without inoculation of anammox aggregates for municipal wastewater treatment. The reactor achieved high removal efficiencies of both total nitrogen and phosphorus, and the enrichment of anammox bacteria contributed significantly to nitrogen removal. The study provides a feasible and promising strategy for enriching anammox bacteria and achieving partial mainstream anammox as well as denitrifying phosphorus removal (DPR).
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Pan Sun, Yang Yu, Dongdong Xu, Yida Wang, Wenda Chen, Chao Pan, Ping Zheng, Meng Zhang
Summary: In this study, the organic matter release capacities of five selected natural and synthetic SCSs were investigated. The results showed that brown rice was the most suitable SCS, with high COD release potential, release rate, and maximum accumulation. The cost for COD supply of brown rice was $1.0/kg-COD, indicating good economic viability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Zhicheng Jiang, Xinxin Xu, Yuhang He, Ming Zeng, Meng Zhang, Wei Liu, Nan Wu
Summary: The study discusses the effects of Fe2+ and Fe3+ on anammox and emphasizes the need for a reliable predictive classification system. The results show that iron ion concentration plays a crucial role in the nitrogen removal process, with Fe2+ having a more significant effect. The RF model is identified as the preferred model for accurately predicting anammox performance and revealing the mechanism of iron ion impact through the classification model.
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
