Transformation of dissolved organic matter during groundwater arsenite removal using air cathode iron electrocoagulation
Chemosphere. 2024 May 1:142083. doi: 10.1016/j.chemosphere.2024.142083. Online ahead of print.ABSTRACTDissolve organic matters (DOM) usually showed negative effect on the removal of inorganic arsenic (As) in groundwater by electrochemical approaches, yet which parts of sub-component within DOM played the role was lack of evidence. Herein, we investigated the effects of land-source humic-like acid (HA) on groundwater As(III) removal using air cathode iron electrocoagulation, based on the parallel factor analysis of three-dimensional excitation-emission matrix and statistical methods. Our results showed that the land-source ...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ying Yuan Jiabao Chen Hao Zhang Yue Wu Yu Xiao Wan Huang Yang Wang Jun Tang Fang Zhang Source Type: research
Mineralization of SF < sub > 6 < /sub > and NF < sub > 3 < /sub > fluorinated compounds for greenhouse gas abatement by oxalates
This study investigates the mineralization and removal of two potent FCs: SF6 and NF3. The results confirm that utilizing various oxalate salts leads to the formation of corresponding metallic fluorides: lithium fluoride (LiF), sodium fluoride (NaF), and potassium fluoride (KF), validating the occurrence of mineralization reactions. Among the oxalate salts, sodium oxalate demonstrates the highest mineralization efficiency in both SF6 and NF3 removal. Real-time Fourier transform infrared spectroscopy (FT-IR) gas-phase analysis confirms rapid and complete gas removal within a short reaction time using the selected oxalate sa...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ndumiso Vukile Mdlovu Kuen-Song Lin Cheng-Yang Tang Wei-Chung Chen Jamshid Hussain Source Type: research
Phosphorus immobilization/release behavior of lanthanum-modified bentonite amended sediment under the dual effects of pH and dissolved organic carbon
Chemosphere. 2024 May 1:142221. doi: 10.1016/j.chemosphere.2024.142221. Online ahead of print.ABSTRACTLanthanum modified bentonite (LMB) is typical P-inactivating agent that has been applied in over 200 lakes. Dissolved organic carbon (DOC) and high pH restrict the phosphorus (P) immobilization performance of LMB. However, the P immobilization/release behaviors of LMB-amended sediment when suspended to overlying water with high pH and DOC have not yet been studied. In the present work, batch adsorption and long-term incubation experiments were performed to study the combined effects of pH and DOC on the P control by LMB. T...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Xiaodi Li Xiaomeng Zhou Junxia Yu Chunqiao Xiao Ruan Chi Source Type: research
The presence and physico-chemical properties of microplastics in seawater, sediment, and several organs of the Spotted scat fish (Scatophagus argus, Linnaeus, 1766) collected from different locations along the East Java coast in Indonesia
Chemosphere. 2024 May 1:142214. doi: 10.1016/j.chemosphere.2024.142214. Online ahead of print.ABSTRACTA comprehensive study was undertaken to examine the contamination of spotted scat fish (Scatophagus argus) with microplastics (MP) in various locations along the East Java coast of Indonesia. The purpose of this study was to collect detailed information regarding the abundance, color, shape, size, type of polymer, and chemical components of the MP. The findings of this study indicated that MP exhibiting distinct attributes-including a specific fiber type, black coloration, and a size range of 1000- <5000 μm-was most ab...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ary Marchellina Agoes Soegianto Bambang Irawan Khudrotul Nisa Indriyasari Nailul Muthiati Rahmatin Wildanun Mukholladun Yulia Irnidayanti Carolyn Melissa Payus Mark G J Hartl Source Type: research
Enhancing the coagulation process for the removal of microplastics from water by anionic polyacrylamide and natural-based Moringa oleifera
Chemosphere. 2024 May 1:142215. doi: 10.1016/j.chemosphere.2024.142215. Online ahead of print.ABSTRACTThe existence of microplastics (MPs) in water is a significant global worry since they have the potential to pose a threat to human health. Therefore, there is a need to develop a sustainable treatment technology for MPs removal, as the conventional methods are inadequate to address this problem. Coagulation is a typical process in treatment plants that can capture MPs before releasing them into the environment. In this work, the removal behaviors of polyamide (PA), polystyrene (PS), and polyethylene (PE) MPs were systemat...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Saeid Avazpour Masoud Noshadi Source Type: research
Bioaccessibility and human health risks of arsenic from geological origin in lateritic red soil on construction land
Chemosphere. 2024 May 1:142192. doi: 10.1016/j.chemosphere.2024.142192. Online ahead of print.ABSTRACTCurrent human health risk assessments of soil arsenic (As) contamination rarely consider bioaccessibility (IVBA), which may overestimate the health risks of soil As. The IVBA of As (As-IVBA) may differ among various soil types. This investigation of As-IVBA focused As from geological origin in a typical subtropical soil, lateritic red soil, and its risk control values. The study used the SBRC gastric phase in vitro digestion method and As speciation sequential extraction based upon phosphorus speciation extraction method. ...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Lu-Yao Ding Guang-Yong Tang Ming-Zhu Chen Fo-Peng Wang Jun-Feng Wang Han-Jie Ye Qu-Sheng Li Source Type: research
Assessment of parent and alkyl -PAHs in surface sediments of Iranian mangroves on the northern coast of the Persian Gulf: Spatial accumulation distribution, influence factors, and ecotoxicological risks
Chemosphere. 2024 May 1:142176. doi: 10.1016/j.chemosphere.2024.142176. Online ahead of print.ABSTRACTSpatial patterns, potential origins, and ecotoxicological risk of alkylated (APAH) -and parent -(PPAH) polycyclic aromatic hydrocarbons (PAHs) were studied in mangrove surface sediments along the northern coasts of the Persian Gulf, Iran. The mean total concentrations (ngg-1dw) ∑32PAH, ∑PPAHs and ∑APAHs in sediments were 3482 (1689-61228), 2642 (1109-4849), and 840 (478-1273), respectively. The spatial variability was similar among these PAH groups, with the highest levels occurring in Nayband National Marine Park (N...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ali Ranjbar Jafarabadi Alireza Riyahi Bakhtiari Hamid Moghimi Elena Gorokhova Source Type: research
Transformation of dissolved organic matter during groundwater arsenite removal using air cathode iron electrocoagulation
Chemosphere. 2024 May 1:142083. doi: 10.1016/j.chemosphere.2024.142083. Online ahead of print.ABSTRACTDissolve organic matters (DOM) usually showed negative effect on the removal of inorganic arsenic (As) in groundwater by electrochemical approaches, yet which parts of sub-component within DOM played the role was lack of evidence. Herein, we investigated the effects of land-source humic-like acid (HA) on groundwater As(III) removal using air cathode iron electrocoagulation, based on the parallel factor analysis of three-dimensional excitation-emission matrix and statistical methods. Our results showed that the land-source ...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ying Yuan Jiabao Chen Hao Zhang Yue Wu Yu Xiao Wan Huang Yang Wang Jun Tang Fang Zhang Source Type: research
Mineralization of SF < sub > 6 < /sub > and NF < sub > 3 < /sub > fluorinated compounds for greenhouse gas abatement by oxalates
This study investigates the mineralization and removal of two potent FCs: SF6 and NF3. The results confirm that utilizing various oxalate salts leads to the formation of corresponding metallic fluorides: lithium fluoride (LiF), sodium fluoride (NaF), and potassium fluoride (KF), validating the occurrence of mineralization reactions. Among the oxalate salts, sodium oxalate demonstrates the highest mineralization efficiency in both SF6 and NF3 removal. Real-time Fourier transform infrared spectroscopy (FT-IR) gas-phase analysis confirms rapid and complete gas removal within a short reaction time using the selected oxalate sa...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ndumiso Vukile Mdlovu Kuen-Song Lin Cheng-Yang Tang Wei-Chung Chen Jamshid Hussain Source Type: research
Phosphorus immobilization/release behavior of lanthanum-modified bentonite amended sediment under the dual effects of pH and dissolved organic carbon
Chemosphere. 2024 May 1:142221. doi: 10.1016/j.chemosphere.2024.142221. Online ahead of print.ABSTRACTLanthanum modified bentonite (LMB) is typical P-inactivating agent that has been applied in over 200 lakes. Dissolved organic carbon (DOC) and high pH restrict the phosphorus (P) immobilization performance of LMB. However, the P immobilization/release behaviors of LMB-amended sediment when suspended to overlying water with high pH and DOC have not yet been studied. In the present work, batch adsorption and long-term incubation experiments were performed to study the combined effects of pH and DOC on the P control by LMB. T...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Xiaodi Li Xiaomeng Zhou Junxia Yu Chunqiao Xiao Ruan Chi Source Type: research
The presence and physico-chemical properties of microplastics in seawater, sediment, and several organs of the Spotted scat fish (Scatophagus argus, Linnaeus, 1766) collected from different locations along the East Java coast in Indonesia
Chemosphere. 2024 May 1:142214. doi: 10.1016/j.chemosphere.2024.142214. Online ahead of print.ABSTRACTA comprehensive study was undertaken to examine the contamination of spotted scat fish (Scatophagus argus) with microplastics (MP) in various locations along the East Java coast of Indonesia. The purpose of this study was to collect detailed information regarding the abundance, color, shape, size, type of polymer, and chemical components of the MP. The findings of this study indicated that MP exhibiting distinct attributes-including a specific fiber type, black coloration, and a size range of 1000- <5000 μm-was most ab...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ary Marchellina Agoes Soegianto Bambang Irawan Khudrotul Nisa Indriyasari Nailul Muthiati Rahmatin Wildanun Mukholladun Yulia Irnidayanti Carolyn Melissa Payus Mark G J Hartl Source Type: research
Enhancing the coagulation process for the removal of microplastics from water by anionic polyacrylamide and natural-based Moringa oleifera
Chemosphere. 2024 May 1:142215. doi: 10.1016/j.chemosphere.2024.142215. Online ahead of print.ABSTRACTThe existence of microplastics (MPs) in water is a significant global worry since they have the potential to pose a threat to human health. Therefore, there is a need to develop a sustainable treatment technology for MPs removal, as the conventional methods are inadequate to address this problem. Coagulation is a typical process in treatment plants that can capture MPs before releasing them into the environment. In this work, the removal behaviors of polyamide (PA), polystyrene (PS), and polyethylene (PE) MPs were systemat...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Saeid Avazpour Masoud Noshadi Source Type: research
Bioaccessibility and human health risks of arsenic from geological origin in lateritic red soil on construction land
Chemosphere. 2024 May 1:142192. doi: 10.1016/j.chemosphere.2024.142192. Online ahead of print.ABSTRACTCurrent human health risk assessments of soil arsenic (As) contamination rarely consider bioaccessibility (IVBA), which may overestimate the health risks of soil As. The IVBA of As (As-IVBA) may differ among various soil types. This investigation of As-IVBA focused As from geological origin in a typical subtropical soil, lateritic red soil, and its risk control values. The study used the SBRC gastric phase in vitro digestion method and As speciation sequential extraction based upon phosphorus speciation extraction method. ...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Lu-Yao Ding Guang-Yong Tang Ming-Zhu Chen Fo-Peng Wang Jun-Feng Wang Han-Jie Ye Qu-Sheng Li Source Type: research
Assessment of parent and alkyl -PAHs in surface sediments of Iranian mangroves on the northern coast of the Persian Gulf: Spatial accumulation distribution, influence factors, and ecotoxicological risks
Chemosphere. 2024 May 1:142176. doi: 10.1016/j.chemosphere.2024.142176. Online ahead of print.ABSTRACTSpatial patterns, potential origins, and ecotoxicological risk of alkylated (APAH) -and parent -(PPAH) polycyclic aromatic hydrocarbons (PAHs) were studied in mangrove surface sediments along the northern coasts of the Persian Gulf, Iran. The mean total concentrations (ngg-1dw) ∑32PAH, ∑PPAHs and ∑APAHs in sediments were 3482 (1689-61228), 2642 (1109-4849), and 840 (478-1273), respectively. The spatial variability was similar among these PAH groups, with the highest levels occurring in Nayband National Marine Park (N...
Source: Chemosphere - May 3, 2024 Category: Chemistry Authors: Ali Ranjbar Jafarabadi Alireza Riyahi Bakhtiari Hamid Moghimi Elena Gorokhova Source Type: research
Toxic effects of acaricide fenazaquin on development, hemolymph metabolome, and gut microbiome of honeybee (Apis mellifera) larvae
Chemosphere. 2024 Apr 30:142207. doi: 10.1016/j.chemosphere.2024.142207. Online ahead of print.ABSTRACTFenazaquin, a potent insecticide widely used to control phytophagous mites, has recently emerged as a potential solution for managing Varroa destructor mites in honeybees. However, the comprehensive impact of fenazaquin on honeybee health remains insufficiently understood. Our current study investigated the acute and chronic toxicity of fenazaquin to honeybee larvae, along with its influence on larval hemolymph metabolism and gut microbiota. Results showed that the acute median lethal dose (LD50) of fenazaquin for honeybe...
Source: Chemosphere - May 2, 2024 Category: Chemistry Authors: Jiangli Wu Fengying Liu Jiajing Sun Qiaohong Wei Weipeng Kang Feng Wang Chenhuan Zhang Meijiao Zhao Shufa Xu Bin Han Source Type: research
