Article
Environmental Sciences
Wen-Xiang Ji, Ye-Chao Tian, Ai-min Li, Xiao-Ming Gu, Hong-Fang Sun, Min-Hui Cai, Shan-Qi Shen, Yan-Ting Zuo, Wen-Tao Li
Summary: The study found that the characteristics of dissolved organic matter (DOM) in the influent and secondary effluent of municipal wastewater treatment plants vary with molecular weight, and fluorescence spectral properties have a correlation with the hydrophobicity of DOM. In the influent, DOM is mainly composed of biopolymers and humic substances, while in the secondary effluent, humic substances become the predominant fraction.
Article
Environmental Sciences
Jiaoran Fei, Xiaozi Lin, Xufang Li, Yuanxing Huang, Luming Ma
Summary: This study investigated the conversion of different fractions of dissolved effluent organic matter (EfOM) in water by sole ozonation process (SOP) and catalytic ozonation process (COP). It was found that COP had better removal efficiency for high molecular weight organic pollutants (TPI and HPI) compared to SOP, while SOP showed higher degradation rate for HPO. COP was more effective in removing fulvic acid-like substances, SMP-like substances, and humic acid-like substances, while SOP showed better removal for aromatic protein and SMP-like substances.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Yang Yang, Yin Yu, Jingling Zhou, Hongbo Xi, Chunrong Wang, Yuexi Zhou, Liya Fu, Yue Qi, Yue Yuan
Summary: This study evaluated the molecular weight, hydrophilicity, and chemical composition of dissolved organic carbon (DOC) in acetaldehyde wastewater. The results showed that the wastewater mainly consisted of components with a molecular weight less than 1 kDa, and a higher proportion of protein-like substances that contributed to membrane fouling. Additionally, 30 pollutants were detected, with aldehydes, hydrocarbons, ketones, alcohols, furans, phenols, and organic acids being the dominant pollutants.
Article
Environmental Sciences
Ahmed Abdulrhman Al-Othman, Parminder Kaur, Monzur A. Imteaz, Mahmoud Ezzeldin Hashem Ibrahim, Mika Sillanpaa, Mohab Amin Mohamed Kamal
Summary: A modified biological-integrated electrocoagulation method was explored to treat municipal wastewater for irrigation purposes. The results showed that this method could effectively remove various contaminants from the wastewater under suitable operating conditions, and it had lower operating costs compared with the standard specifications for agricultural irrigation water.
Article
Environmental Sciences
Ahmed Abdulrhman Al-Othman, Parminder Kaur, Monzur A. Imteaz, Mahmoud Ezzeldin Hashem Ibrahim, Mika Sillanpa, Mohab Amin Mohamed Kamal
Summary: A modified biological-integrated electrocoagulation method was used to treat municipal wastewater for irrigation purposes, resulting in significant improvement of water quality suitable for irrigation. By adjusting various parameters, optimal operating conditions were determined, and it was found that the bio-filter and sand filter played a positive role in degrading contaminants.
Article
Chemistry, Multidisciplinary
Xuyi Ji, Mingxuan Zhu, Man Li, Ning Wang, Mei Li, Li Song, Rui Shan
Summary: Adsorption and degradation of organic compounds on sludge were studied by comparing activated and inactivated sludge at different dosages, pH values, and temperatures. Organic compounds in wastewater were identified and evaluated using fluorescence spectra. The results showed that optimum adsorption occurred at a concentration of 4000 mg/L, pH of 7.99, and temperature of 30 ?, with activated sludge removing protein-like organic matter, fulvic acid-like organic matter, and humic acid-like organic matter by 22.1%, 9.4%, and 41.2% respectively through adsorption only or by 25.9%, 9.8%, and 74.3% respectively through adsorption and degradation. Under optimum conditions, the treatment of high-content organic wastewater can be achieved by combining the good adsorption performance of sludge with other sewage treatment technologies.
Article
Ecology
Alexandra Meister, Furong Li, Maria Jesus Gutierrez-Gines, Nicholas Dickinson, Sally Gaw, Mike Bourke, Brett Robinson
Summary: Studies have shown that native vegetation can facilitate the land application of treated municipal wastewater, reducing the discharge of wastewater into water bodies. The application of wastewater onto land may impact nutrient load in water bodies and create ecological value. Long-term trials have shown that despite wastewater irrigation, soil structure remains intact and plant growth is promoted.
ECOLOGICAL ENGINEERING
(2022)
Article
Environmental Sciences
Ning-Jie Li, Qi Lan, Jing-Hang Wu, Jie Liu, Xue-Hong Zhang, Feng Zhang, Han-Qing Yu
Summary: The study shows that SMP produced by fungi has great potential as an efficient bioflocculant in wastewater treatment; SMP-P contains high molecular weight polysaccharides as the main active component, demonstrating good flocculation effects; Using SMP-P as a bioflocculant achieved effective removal of chemical oxygen demand in municipal wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Richard H. Lindberg, Shahla Namazkar, Sandra Lage, Marcus Ostman, Zivan Gojkovic, Christiane Funk, Francesco G. Gentili, Mats Tysklind
Summary: Active pharmaceutical ingredients (APIs) are important for human health, but can pose ecological risks if discharged into the environment. Conventional wastewater treatment plants are not designed to remove APIs specifically. Microalgae-based treatment is a sustainable and low-cost approach to remove nutrients and emerging contaminants.
Article
Chemistry, Multidisciplinary
Myung Ock Lee, Ji Hyun Kim, JaeYun Park, Sang Youl Kim
Summary: Solid-state polymerization (SSP) of biobased monomers can be used for large-scale synthesis of ecofriendly bioplastic bio-PA510 with low water absorption and high oxygen barrier properties, making it a promising candidate for food packaging applications.
Article
Plant Sciences
Alexandra Meister, Maria Jesus Gutierrez-Gines, Hamish Lowe, Brett Robinson
Summary: Research on the potential of native species to manage nutrients and contaminants in treated municipal wastewater is limited. In a 10-hectare field site, the distribution of nutrients and trace elements in the soil-plant system was investigated, comparing native Myrtaceae species with pasture. Results showed that plant growth was not influenced by wastewater irrigation rates. Myrtaceae species had higher foliar trace element concentrations, but pasture accumulated more nitrogen and phosphorus.
Article
Engineering, Environmental
Pragadeesh Subramani, Milan Basil, Praveen Rosario, Dijin Ramachandran Jalaja, Vaishali Choudhary, Jayakumar Renganathan, Ligy Philip, Kangwoo Cho, Claire Welling, Sonia Grego, Clement Cid
Summary: The long-term performance of an anaerobic bioreactor combined with electrochemical oxidation and integrated into a self-contained public bathroom under daily use was investigated. The electrochemical treatment consistently generated a highly chlorinated and clear effluent that was negative to a fecal coliform assay. The system maintained its performance for disinfection and nitrogen removal under water recycling conditions, but the COD removal capacity was slightly reduced. The generation of toxic disinfection byproducts was also examined.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Saleh Najafi Chaleshtori, Mehrdad Shamskilani, Azadeh Babaei, Masoomeh Behrang
Summary: This study investigated the performance of microalgal-activated sludge membrane bioreactor (MAS-MBR) as a self-biological treatment or post-treatment for conventional biological treatments. The results showed that cultivating mixed algae/sludge in raw wastewater achieved the best performance in terms of ammonium and phosphorus removal efficiency, as well as the highest oxygen production rate and oxygen uptake rate. However, membrane fouling was increased in this case, highlighting the need for regular membrane cleaning.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Pin-Wei Lee, Adrian Saura-Sanmartin, Christoph A. Schalley
Summary: This study presents a supramolecular assembly method for superhydrophobic coatings using a low molecular weight gelator and acrylate polymers, resulting in scratch-resistant and transparent coatings. The incorporation of covalent polymers improves the mechanical resistance and optical transparency of the coatings while maintaining their water and oil repellency.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biotechnology & Applied Microbiology
Goknur Sisman-Aydin
Summary: The current study aimed to investigate the performance of three native microalgae in primary-treated municipal wastewater, including nutrient removal, water quality improvement, and biomass production. The results showed that the diatom N. veneta is a strong candidate for phytoremediation systems.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)