Article
Environmental Sciences
Mostafa M. S. Ismaiel, Yassin M. El-Ayouty, Saad A. Abdelaal, Hoda A. Fathey
Summary: Activities related to uranium mining and nuclear industry may have negative environmental impacts. This study compared the uranium biosorption efficiency of two immobilized algae and investigated the effects of various factors. The results suggest that immobilized algae can be used for recovery and biosorption of uranium from aqueous solutions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Ayat Allah Al-Massaedh, Fawwaz I. Khalili
Summary: In this study, macroporous polyacrylamide-based monoliths with negatively charged interaction sites were synthesized for the removal of Th4+ from aqueous solutions. The effects of various factors on the adsorption process were studied, and the adsorption data were best described by Freundlich and Langmuir models. Kinetic studies showed that the adsorption process followed pseudo-second order kinetics, and thermodynamic studies revealed it to be an endothermic and spontaneous process.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Biotechnology & Applied Microbiology
Rakesh Kumar Vij, V. Aruna Janani, Deepalakshmi Subramanian, Chintan R. Mistry, Gokul Devaraj, Sivakumar Pandian
Summary: In this study, Hydrilla verticillata biomass was used to remove Reactive Red 120 dye from simulated wastewater. The research found that Freundlich's isotherm and pseudo-second-order equation were good fits for describing the sorption of RR120 dye. Optimal conditions for maximum removal of the dye were determined through experimental studies, with adsorption occurring through an endothermic process.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Ecology
Jianyou Long, Mingxia Yu, Huaihao Xu, Shuangqiu Huang, Zhu Wang, Xu-Xiang Zhang
Summary: In this study, two cadmium-tolerant endophytic bacteria were used as biosorbents to effectively remove Cd(II) from aqueous solutions. The results showed that they exhibited high biosorption capacity and potential as promising adsorbents for Cd(II) removal. The biosorption process was well-described by Langmuir isotherms and pseudo-second-order kinetics.
Article
Engineering, Environmental
Vinay Kumar Chintalapudi, Ramya Krishna S. L. Kanamarlapudi, Useni Reddy Mallu, Sudhamani Muddada
Summary: In this study, microorganisms with high resistance to lead ions were isolated and evaluated for their efficiency in removing lead ions from wastewater through biosorption. The optimized conditions for biosorption of Pb (II) were determined, and the biosorption efficiency and capacity of the isolated Brevibacillus strain were analyzed. Surface characterization and analysis of key functional groups involved in biosorption were conducted. The results showed that the biomass of Brevibacillus can be used as a promising biosorbent for the removal of metals, including lead, from wastewater.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Zeinab F. Akl, A. Ezat
Summary: The study evaluated the potential of functionalized magnetite nanoparticles and dithiophosphinic acid as efficient thorium adsorbents, investigating factors that control thorium adsorption capacity and exploring the best-fit adsorption models. The results demonstrated the feasibility and efficiency of using these materials for thorium removal from aqueous solutions.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Muhammad Kaleem, Lubna Anjum Minhas, Muhammad Zafar Hashmi, Mohammad Ajmal Ali, Rania M. Mahmoud, Saddam Saqib, Moona Nazish, Wajid Zaman, Abdul Samad Mumtaz
Summary: In this study, Nostoc sp. MK-11 was used as a biosorbent for the removal of Cd and Pb ions from synthetic aqueous solutions. The maximum biosorption capacity of Nostoc sp. MK-11 for Cd and Pb ions was found to be 75.757 mg g(-1) and 83.963 mg g(-1), respectively. The biomass showed high desorption efficiency and reusability.
Article
Engineering, Chemical
Faten M. Abu Orabi, Fawwaz Khalili, Latifa S. Ismail
Summary: This study investigated the biosorption of uranium and thorium ions using Hedera helix leaves. The biosorption process followed pseudo-second-order kinetics and Langmuir isotherm best described the biosorption isotherm. Desorption studies showed efficient recovery of uranium and thorium using nitric acid solutions after multiple cycles.
DESALINATION AND WATER TREATMENT
(2021)
Article
Biotechnology & Applied Microbiology
Saloni Sharma, Hema Setia, Amrit Pal Toor
Summary: This study demonstrates the potential of using isolated bacterial strain WAH1 for biodegradation of Diclofenac Sodium (DS), showing strong adaptive ability and degradation efficiency at high DS concentrations. The results suggest a promising application of the strain WAH1 in the treatment of DS contaminated sites.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Blessing E. Eboibi, Michael C. Ogbue, Esther C. Udochukwu, Judith E. Umukoro, Laura O. Okan, Samuel E. Agarry
Summary: This study evaluated the effects of maize cob sorbent on the biosorptive removal efficiency and capacity of crude oil from seawater, and optimized various factors. The results showed that the maize cob sorbent could effectively remove crude oil pollution under suitable conditions, and had the potential to be an inexpensive and effective natural sorbent.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Energy & Fuels
Aparna Prabha Devi, Pravat Manjari Mishra, Jayanta Kumar Pothal, Boopathy Ramasamy, Nilotpala Pradhan
Summary: In this study, spherical magnetite nanoparticles were successfully synthesized using Averrhoa carambola leaf extract for the removal of Cr(VI). The experimental data demonstrated high biosorption efficiency and reusability of bio-based magnetite nanoparticles.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Fotini Noli, Aimilia Avgerinou, Eleftheria Kapashi, Maria Kapnisti
Summary: Pomegranate peel, treated with acidic and alkaline solutions, showed effective removal of uranium and thorium from aqueous solutions. The sorption efficiency for both metals was enhanced, indicating a complex sorption mechanism involving physical adsorption and surface precipitation as explained by various analytical techniques such as FTIR, XRD, and SEM.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Environmental Sciences
F. Noli, M. S. A. Busari Nasiru, P. Tsamos, E. Pavlidou
Summary: This study investigated the use of pomegranate peel, both in raw and modified form, as a biosorbent for the removal of Eu(III) from aqueous solutions. The modified biosorbent showed a significant sorption capacity for europium, and the sorption mechanism was successfully explored using Langmuir and Freundlich linear isotherm equations and pseudo-first- and pseudo-second-order kinetics equations.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Christopher Uchechukwu Sonde, Nnaemeka Nnaji, Stevens Azubuike Odoemelam, Francis Kalu Ekuma, Godwin Chigaekwu Ezeh, Chukwunonso Peter Okoli
Summary: This study proposes the use of Annona muricata seed and Treculia africana seed hull as low-cost alternative biosorbents for the removal of dye pollutants from industrial wastewater. The results show that these materials have good adsorption performance and can efficiently remove methylene blue dye from aqueous solutions under appropriate operating conditions.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Esra Bilgin Simsek, Didem Saloglu, Ahmet Alper Aydin
Summary: This study investigated the immobilization of LPZM on PEGDMA/APTES for the adsorption and biosorption of nicotine. The immobilization process significantly altered the thermal behavior, surface characteristics, and surface morphology of PEGDMA/APTES. The immobilization yields were 85.0% (physical adsorption) and 72.0% (covalent immobilization), with a nicotine removal efficiency of 98.9%. The PEGDMA/APTES@LPZM showed satisfactory reusability in real water matrices.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Atefeh Zendehboudi, Azam Mohammadi, Sina Dobaradaran, Gabriel E. De-la-Torre, Bahman Ramavandi, Seyed Enayat Hashemi, Reza Saeedi, Emran Moradpour Tayebi, Ahmad Vafaee, Amirhossein Darabi
Summary: This study investigated the characteristics and ecological risks of microplastics (MPs) in ballast water for the first time, and found high levels of MP pollution. These findings contribute to our understanding of the sources and risks of microplastics in marine ecosystems.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rose Boahemaa Pinto, Linda Bogerd, Martine van der Ploeg, Kwame Duah, Remko Uijlenhoet, Tim H. M. van Emmerik
Summary: Catchment-scale plastic pollution assessments provide insights into the sources, sinks, and pathways of plastic pollution. We propose an approach to quantify macroplastic transport and density in the Odaw catchment, Ghana, and find that the urban riverine zone has the highest transport, while the urban tidal zone has the highest riverbank and land macroplastic density.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Aliya Baidourela, Qian Sun, Gongxin Yang, Umut Halik, Zhongkai Dong, Kaixu Cai, Guili Sun, Wenya Zhang, Sisi Cheng
Summary: The study focused on heavy metal pollution in the green vegetation of a suburban industrial area in Tuokexun County, Xinjiang, China. The results showed that the overall level of heavy metal pollution in the soil was minor, with mercury (Hg) being the most severe contamination, likely caused by human activities. The composition of heavy metal elements in trees was more stable compared to grass and shrubs, with varying concentrations across different vegetation. Shrubbery was found to be the most effective in heavy metal restoration, and there were disparities in heavy metal enrichment among different vegetation types.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
James H. Bridson, Hayden Masterton, Beatrix Theobald, Regis Risani, Fraser Doake, Jessica A. Wallbank, Stefan D. M. Maday, Gavin Lear, Robert Abbel, Dawn A. Smith, Joanne M. Kingsbury, Olga Pantos, Grant L. Northcott, Sally Gaw
Summary: Plastic pollution has significant environmental impacts, largely due to chemical additives. However, the behavior of plastic additives in marine environments is not well understood. A marine deployment experiment was conducted to investigate the effects of weathering on the extractables profile of four types of plastics in New Zealand over a period of nine months. The concentration of additives in polyethylene and oxo-degradable polyethylene was strongly influenced by artificial weathering, while polyamide 6 and polyethylene terephthalate showed minimal change. These findings emphasize the importance of considering leaching and weathering effects on plastic composition when assessing the potential impact and risk of plastic pollution in receiving environments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Alan G. Scarlett, Francis D. Spilsbury, Steven J. Rowland, Marthe Monique Gagnon, Kliti Grice
Summary: This study used diamondoid hydrocarbon distributions to identify the sources of environmental oil contamination. A suite of 20 diamondoids was found to accumulate in fish adipose tissue. The scatter plots of indices between fish and exposure oils showed a close to ideal 1:1 relationship, which can be used to determine the origin of the oil.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Shan Jiang, Mengmeng Wan, Kun Lin, Yanshan Chen, Rui Wang, Liju Tan, Jiangtao Wang
Summary: In this study, the concentration, composition, distribution, and sources of PCBs in surface seawater of the Bohai Bay were analyzed. The results showed that PCBs in the Bohai Bay had high concentrations and were primarily derived from land-based sources such as port activities and river inputs. The PCBs in the Bohai Bay may come from commercial PCBs and their incineration products, municipal landfills, wood and coal combustion, and industrial activities, etc.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Icaro S. A. Porto, Saulo V. A. Dantas, Caio S. A. Felix, Francisco A. S. Cunha, Jailson B. de Andrade, Sergio L. C. Ferreira
Summary: This study evaluated the risks of mercury levels in sardines consumed by low-income population in Salvador, Brazil. The results showed that the mercury content in the sampled sardines posed no risks to human health. This study is significant as most sardines in Salvador come from Todos os Santos Bay, which has a history of mercury contamination.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Jiahui Chen, Chengyu Yuan, Guanqun Zhai, Guangcheng Chen, Heng Zhu, Jun Liu, Yong Ye
Summary: This study investigated the combined influences of species selection and site elevation on greenhouse gas fluxes from restored mangrove soils. The results suggest that Avicennia marina should be selected for mangrove restoration to minimize carbon release and reduce the influence of greenhouse gas fluxes on the global greenhouse effect.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Emmanuel Onyeabor, Uju Obuka
Summary: The Gulf of Guinea region in Africa is a significant area for coastal countries, playing a vital role in their economic and environmental development. This study aims to reduce marine plastic pollution in the region by utilizing legal instruments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Yuanli Liu, Stephan Luttjohann, Alvise Vianello, Claudia Lorenz, Fan Liu, Jes Vollertsen
Summary: Large area attenuated total reflectance-Fourier transform infrared spectroscopy (LAATR-FTIR) is a novel technique for detecting small microplastics, with limited accuracy for large microplastics. However, it shows promise in homogeneous matrices. The spectra quality is comparable between transmission mode and LAATR mode.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Phuc T. D. Le, Andrew M. Fischer, Britta D. Hardesty, Heidi J. Auman, Chris Wilcox
Summary: This study explores the relationship between ocean currents and the accumulation of floating marine debris (FMD) and finds that higher concentrations of FMD are associated with frontal frequencies (FF). FMD is primarily trapped in accumulation zones between fronts and the coastline, which have high biodiversity value.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rosa Sawan, Perine Doyen, Florence Viudes, Rachid Amara, Celine Mahfouz
Summary: Few studies have examined the impact of urbanization and meteorological events on microplastics discharged into the sea through rivers. Surface water samples were collected from two Lebanese rivers, with differing degrees of urbanization, during dry and wet periods. The results showed that the most industrialized river had a significantly higher abundance of microplastics compared to the less-industrialized river. There was also a correlation between particle contamination and the season at each site, with microplastic concentrations highest on the first day of the wet season. These findings highlight the importance of considering meteorological events in accurately assessing plastic pollution influx into coastal waters.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Katherine R. Shaw, Jonathan L. Whitney, Eileen M. Nalley, Madeline C. Schmidbauer, Megan J. Donahue, Jesse Black, Raquel N. Corniuk, Kellie Teague, Rachel Sandquist, Catherine Pirkle, Rachel Dacks, Max Sudnovsky, Jennifer M. Lynch
Summary: This study examines the ingestion of plastic in reef fish in the Republic of the Marshall Islands. Plastic particles were found in the gastrointestinal tracts of multiple fish species. However, further analysis revealed that these particles were actually natural materials and posed no threat to human consumers.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Revati Hardikar, C. K. Haridevi, Shantaj Deshbhratar
Summary: This study investigated the variability in phytoplankton functional structure using a trait-based approach and explored the relationship between species traits and environmental factors, as well as their impact on ecosystem functioning. The results revealed that morphological traits, temperature, and ammonia played a decisive role in the seasonal succession of phytoplankton species. It was found that certain traits favored higher biomass production but might hinder energy transfer efficiency. The strong correlation between environmental variables and phytoplankton functional structure supports the practical implementation of a trait-based approach in studying phytoplankton community dynamics under different environmental conditions.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Engki A. Kisnarti, Nining Sari Ningsih, Mutiara R. Putri, Nani Hendiarti, Bernhard Mayer
Summary: This study examines the movement patterns of plastic marine debris in Indonesian waters, revealing that Indonesia contributes significantly to transboundary marine debris in the Pacific Ocean, Indian Ocean, and the South China Sea. Most of the debris remains in Indonesian waters and moves back and forth due to the influence of monsoon currents.
MARINE POLLUTION BULLETIN
(2024)