Article
Engineering, Environmental
Ji Soo Lee, Han Bi Lee, Yuree Oh, Ah-Jeong Choi, Tae Hoon Seo, Young-Kwan Kim, Min Wook Lee
Summary: A coffee ground composite membrane for copper adsorption was prepared and demonstrated high removal efficiency of over 90% in a short period of time, satisfying the drinking water acceptance criteria. The analysis of structure and properties indicated good adsorption capacity of the composite membrane. The results of this study are of great significance for the development of new environmentally friendly adsorption materials.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Engineering, Environmental
Abul K. Mallik, S. M. Fijul Kabir, Fahim Bin Abdur Rahman, Mohammad Nazmus Sakib, Shakil Shahriar Efty, Mohammed Mizanur Rahman
Summary: This review systematically analyzes the recent progress of chitosan-based adsorbents for removing Cu(II) ions from wastewater, including the types of adsorbents, adsorption mechanisms, isotherms, and kinetics. The study shows that chitosan-based adsorbents have high potential for reusability and are most effective in slightly acidic to neutral aqueous mediums. The binding of Cu(II) ions by these adsorbents is mainly governed by complexation, electrostatic interaction, ion-exchange, and surface precipitation mechanisms.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Yanlin Ma, Zhaoping Deng, Zepeng Li, Quanzhi Lin, Yuhang Wu, Weisha Dou
Summary: This study reported the excellent performance of potassium titanate whiskers in adsorbing heavy metals in wastewater, with a focus on the adsorption kinetics and mechanism for various ions. The whiskers demonstrated good recyclability, maintaining over 70% adsorption capacity after five cycles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Zhi-Wei Lin, Emma F. Shapiro, Francisco J. Barajas-Rodriguez, Arsen Gaisin, Mohamed Ateia, John Currie, Damian E. Helbling, Rosa Gwinn, Aaron I. Packman, William R. Dichtel
Summary: Trace organic contaminants (TrOCs) pose significant challenges to wastewater treatment, and cross-linked beta-cyclodextrin (beta-CD) polymers show promise in removing TrOCs from complex water matrices.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xiaoyuan Zhang, Yu Liu
Summary: In this study, a novel nanostructured layered sodium vanadosilicate adsorbent was synthesized for the concurrent removal of Cu2+, Ni2+, and Co2+ from wastewater in a ternary system. The adsorption equilibrium was reached within 30 minutes, indicating fast adsorption kinetics, with Cu2+ showing the highest affinity among the three ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Engineering, Environmental
Julide Kahkeci, Mohamed Gamal El-Din
Summary: This review highlights the excellent performances of biochar supported photocatalysts (BSPs) in various applications and identifies the gaps in the existing literature regarding the variables affecting the performance of these composites. It emphasizes the importance of selecting suitable photocatalyst and biochar materials and understanding the relationship between biochar adsorption/electron exchange capacities and enhanced photocatalytic capabilities. The review also emphasizes the role of material properties, synthesis methods, and loading ratios in determining the morphology, crystal structure, and performance of photocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Huai-Yuan Niu, Xueting Li, Jishan Li
Summary: In this study, dithiocarbamate functionalized activated carbon (DTC-AC) was synthesized and its adsorption performance for heavy metals Pb(II), Cu(II), and Cd(II) was investigated. The results showed that DTC-AC had higher heavy metal adsorption capacity, and pH played an important role in heavy metal removal. The adsorption equilibrium was reached within 20 minutes. The Langmuir model best described the adsorption performance of DTC-AC, with a maximum single metal uptake of 203.36 mg g(-1) for Pb(II). Thermodynamic parameters indicated that the adsorption process of heavy metals onto DTC-AC was spontaneous and endothermic. This study demonstrated the potential of DTC-AC in remediating heavy metal pollution.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Environmental
Wen He, Jizhou Cao, Feiyu Guo, Zhihao Guo, Peiguo Zhou, Rui Wang, Shuang Liang, Qunyan Pang, Bairen Wei, Yue Jiao, Tripti Singh, Qiliang Fu
Summary: Heavy-metal pollution is a global concern due to its harmful impact on humans and the natural ecosystem. In this study, a tunable dual-wavelength absorption mesoporous wood aerogel (TDWA) was developed for the removal of Cu2+ ions from wastewater. The TDWA showed excellent adsorption capacity and efficiency, outperforming most wood-based adsorption membranes. The TDWA membrane also exhibited high removal efficiency even after repeated adsorption cycles, making it a promising alternative to plastic-based membranes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Maria Harja, Gabriela Buema, Nicoleta Lupu, Horia Chiriac, Dumitru Daniel Herea, Gabriela Ciobanu
Summary: Fly ash/magnetite material was used for copper adsorption in synthetic wastewater. Various characterization techniques and isotherm models were employed to study the adsorption process. The novel material showed potential as a low-cost adsorbent with improved adsorption capacity and magnetic separation capability.
Article
Engineering, Chemical
Jelena Dimitrijevic, Sanja Jevtic, Aleksandar Marinkovic, Marija Simic, Marija Koprivica, Jelena Petrovic
Summary: In this study, agro-waste biomass oat straw was modified using a deep eutectic solvent (DES) to improve its adsorption abilities for Cu(II), Zn(II), and Se(IV) removal. The modification led to biomass degradation and functionalization, as confirmed by various analysis techniques. The adsorption tests showed a significant increase in capacity after modification, and the adsorption followed a pseudo-second-order kinetic model. The Sips isotherm model best described the equilibrium of the adsorption process, with high maximum adsorption capacities for each tested ion.
Article
Multidisciplinary Sciences
Mehmet Emin Kucuk, Iryna Makarava, Teemu Kinnarinen, Antti Hakkinen
Summary: In this study, NaP and LTA zeolites were successfully synthesized from woody biomass ash using alkali fusion-assisted hydrothermal method. The synthesized zeolites were tested for the adsorption of Cu(II), Cd(II), Pb(II), and Zn(II) ions. The results showed that the maximum adsorbed amount of metals followed the order Pb(II) > Cu(II) > Cd(II) > Zn(II) for both NaP and LTA zeolite. The kinetic data fit well with the pseudo-second order model, indicating chemisorption as the rate-limiting step. The isotherm data were well described by the Sips and Redlich-Peterson models, indicating a non-ideal heterogeneous adsorption process.
Article
Environmental Sciences
A. Saravanan, S. Karishma, P. Senthil Kumar, Sunita Varjani, P. R. Yaashikaa, S. Jeevanantham, Racchana Ramamurthy, B. Reshma
Summary: The study investigated the use of immobilized fungal biomass for the simultaneous removal of Cu(II) ion and Reactive Green 6 dye from water. Optimal conditions included 25 mg/L of adsorbate concentration, 60 minutes equilibrium time, 2.5 g of fungal biomass, temperature of 303 K, and pH of 5.0. Langmuir isotherm model showed high correlation, while pseudo-first order and pseudo-second order kinetics were found to be suitable for Cu(II) ion and Reactive Green dye removal.
Article
Materials Science, Multidisciplinary
Zakarya Othman, Hamish R. Mackey, Khaled A. Mahmoud
Summary: A novel Ti3C2T(x) MXene/chitosan/lignosulfonate adsorbent (MCL) was prepared to improve the biocompatibility and aqueous stability of MXenes by decorating MXene sheets with chitosan/lignosulfonate nanospheres. MCL exhibited a preferential adsorption affinity towards various heavy metal ions, and the adsorption mechanism involves electrostatic interaction, surface complexation, and ion exchange. The findings of this study provide a new approach for eco-friendly MXene surface modification and offer insights into metal pollutants interactions during adsorption.
Article
Materials Science, Multidisciplinary
Mahsa Mahmoodi, Bagher Aslibeiki, Mahdieh Abdolalipour Sakha, Mahmoud Zarei
Summary: Lead ions (Pb2+) were separated from simulated polluted water using Fe3O4/C nanocomposite. The superparamagnetic behavior of the nanocomposite was advantageous for separation after the biosorption process. Batch study optimized the experimental conditions and determined that pH = 7, 5 mg of adsorbent dose, and 30 min of contact time led to maximum removal efficiency with adsorption efficiency R = 99.83% and adsorption capacity q = 123.5 mg/g.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Environmental Sciences
Efaq Noman, Adel Al-Gheethi, Radin Maya Saphira Radin Mohamed, Mohamed Al-Sahari, Md Sohrab Hossain, Dai-Viet N. Vo, M. Naushad
Summary: This article reviews the removal of nickel (Ni2+) ions from wastewater. Adsorption is the most commonly used method, with nanoparticles, bacterial biomass, and activated carbon from agricultural waste being the preferred adsorbents. Bacterial biomass and activated carbon exhibited high efficiency and renewable biomass sources for Ni2+ ion removal. The biosorption capacity of Ni2+ ions by bacterial biomass ranged from 5.7 to 556 mg/g, while activated carbon ranged from 5.8 to 150 mg/g. Nanocomposite adsorbents may have a biosorption capacity of up to 400 mg/g. Selective biomass adsorbents, such as tolerant bacterial cells biomass, are needed for the elimination of nickel ions.
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)