Article
Engineering, Environmental
Xiao-Nan Wu, Chang-Jie Yuan, Zheng-Yang Huo, Ting-Ting Wang, Ying Chen, Min Liu, Wen-Long Wang, Ye Du, Qian-Yuan Wu
Summary: This study investigated the performance of Fe(VI)/biochar pretreatment to reduce disinfection byproducts (DBPs) and cytotoxicity to mammalian cells of wastewater during post chlorination. Fe(VI)/biochar was more effective at inhibiting cytotoxicity formation than Fe(VI) alone, reducing cytotoxicity from 12.7 to 7.6 mg-phenol/L. The study demonstrates that Fe(VI)/biochar pretreatment can effectively reduce cytotoxicity formation by transforming DBPs and their precursors.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Katarzyna Affek, Adam Muszynski, Nina Doskocz, Monika Zaleska-Radziwill
Summary: Treated wastewater can be a useful alternative for meeting agriculture demands and increasing freshwater resources. Disinfection methods vary in their effectiveness against microorganisms, with chlorine and UV being more efficient than ozonation. UV irradiation has the least negative impact on tested bioindicators, while studies show that ozonation and chlorination can increase toxicity of treated wastewater.
DESALINATION AND WATER TREATMENT
(2021)
Article
Engineering, Environmental
Rehab Khawaga, Mohamed Abouleish, Nabil Abdel Jabbar, Sameer Al-Asheh
Summary: This study utilized a model to analyze the most influential operating variables on breakpoint chlorination, using three input factors in experimental design to determine the response variable changes. Results indicated that contact time influences disinfection system, higher concentration of ammonia accelerates NH2Cl destruction, and the effects of ammonia and nitrite on chlorination curve vary depending on the A/N ratio.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Sunita Kesar, Manpreet S. Bhatti
Summary: This study provides detailed information on the usefulness of chlorination in treating sewage for irrigation purposes. Chlorination is a cost-effective method for disinfection. The study optimized the disinfection process using sodium hypochlorite and investigated various process variables. The results showed that certain kinetic models fit well with the experimental data of chlorine disinfection.
Article
Engineering, Environmental
Fei Yang, Bo Sheng, Zhaohui Wang, Ying Xue, Jianshe Liu, Tianyi Ma, Richard Bush, Hrvoje Kusic, Yanbo Zhou
Summary: The study found that the addition of Cl- or Br- did not significantly affect the degradation, mineralization, or accumulation of adsorbable organic halides (AOX). Rates of CV degradation were enhanced by increasing either AA dosage or solution acidity.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Joao Peres Ribeiro, Nuno C. Cruz, Marcia C. Neves, Sonia M. Rodrigues, Luis A. C. Tarelho, Maria Isabel Nunes
Summary: The study combines granulated biomass fly ash (GBFA) with the Fenton process to enhance the removal of adsorbable organic halides (AOX) from pulp bleaching wastewater. The optimal treatment setup involves sequential treatment by the Fenton process followed by GBFA, resulting in the highest AOX removal (60-70%), reduced COD, and enhanced wastewater biodegradability. GBFA can be recovered and reused without regeneration, yielding similar AOX removal compared with fresh GBFA. Furthermore, the operating cost of this treatment setup is lower than that of conducting the Fenton process alone.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Nathalia Santos Araujo, Nathalia Ferreira Souza, Joao Marcos de Lima-Faria, Andressa Tuane Santana Paz, Paulo Sergio Scalize, Simone Maria Teixeira de Saboia-Morais, Humberto Carlos Ruggeri Junior, Edemilson Cardoso da Conceicao
Summary: The study demonstrated that Moringa oleifera Lam. extract has the potential to reduce turbidity, COD, and oil and grease content in wastewater, with lower toxicity compared to aluminum sulfate. It could serve as a sustainable alternative for the treatment of effluents from the cosmetic industry.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Joao Peres Ribeiro, Luana Sarinho, Marcia C. Neves, Maria Isabel Nunes
Summary: This study assessed the performance of residual iron dust (RID) as a Fenton catalyst for treating bleach wastewater. The results showed that the novel heterogeneous Fenton process achieved similar AOX removal with lower consumption of chemicals compared to the conventional Fenton process. The optimized heterogeneous Fenton process also had lower operating costs.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biotechnology & Applied Microbiology
Mana Noguchi, Ryo Aizawa, Daisuke Nakazawa, Yoshiki Hakumura, Yasuhiro Furuhashi, Sen Yang, Kazuaki Ninomiya, Kenji Takahashi, Ryo Honda
Summary: The study found that real treated wastewater is more promising for green microalgae starch production than simulated wastewater, emphasizing the importance of low nitrogen concentration for high carbohydrate content and the need to control microbial contamination. Chlorination at 2.0 mg Cl/L for 15 min was found to be the most effective for maintaining a high proportion of microalgae/carbohydrate concentration.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Fariba Saadati, Walison Augusto da Silva Brito, Steffen Emmert, Sander Bekeschus
Summary: Research suggests that nano- and micro-plastic particles (NMPPs) may pose a potential threat to human health. In this study, non-malignant HaCaT keratinocytes were exposed to different types, concentrations, and sizes of polystyrene (PS) and poly methyl methacrylate (PMMA) particles to determine their ability to induce micronuclei (MN) formation. The results showed that most non-charged polymer particles were neither toxic nor genotoxic, while aminated particles were toxic but not genotoxic.
Article
Environmental Sciences
Francisco Robert Alexander Ziegler Rivera, Blanca Prado Pano, Stephane Guedron, Lucy Mora Palomino, Claudia Ponce de Leon Hill, Christina Siebe Grabach
Summary: Long-term irrigation with untreated wastewater has led to the accumulation of metals and metalloids in soil. This study assessed the potential mobility of these potentially toxic elements (PTEs) by analyzing soil irrigated with wastewater and evaluating the effects of changes in irrigation practices through batch experiments. The results showed that a change in irrigation practices could increase the mobility of PTEs, which can have negative impacts on crops and groundwater quality.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Engineering, Environmental
Selda Murat Hocaoglu, Mehtap D. Celebi, Irfan Basturk, Recep Partal
Summary: The study found significant differences in total water consumption among hospitals, even with similar bed capacities. PSD analysis provided specific fingerprints for organic pollutants in hospital wastewater, showing that about 20% of AOX was in the size range smaller than 1 kDa.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Xian-Shi Wang, Heng Song, Jing Zhang, Yu-Lei Liu, Jun Ma, Lu Wang
Summary: HOCl was found to effectively convert iodinated phenolic disinfection byproducts into non-toxic iodate and less toxic chlorinated aliphatic DBPs, reducing the acute toxicity of water samples containing iodophenols. Further investigations on the transformation and toxicity alteration of emerging DBPs during chlorination/booster chlorination are warranted due to the widespread use of chlorine as a disinfectant.
Article
Engineering, Environmental
Yang Guo, Qian Yang, Jie Xu, Xueling Bai, Qihuan Han, Jie Nie, Luo Zhang, Hongtao Li, Haixiang Gao, WenFeng Zhou, Jing Li
Summary: The study utilized a novel analytical method to monitor the volatile byproducts of organic chloramines during chlorination and identified (CH3)2NCl and (C2H5)2NCl as important organic chloramines, which may promote the formation of other disinfection byproducts.
Article
Environmental Sciences
A. Rosinska
Summary: The research found that both UV irradiation and UV/chlorination processes can significantly reduce the content of PAHs in treated wastewater, with 30 minutes of UV irradiation being the optimal time. However, the mechanisms behind the decrease in PAH content in the process are not clear, and further research is needed to explore this.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
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)