Article
Environmental Sciences
H. S. Auta, O. P. Abioye, S. A. Aransiola, J. D. Bala, V. Chukwuemeka, A. Hassan, A. Aziz, S. H. Fauziah
Summary: In-situ bioremediation of mangrove soil contaminated with PET and PS microplastics was investigated using indigenous microbial consortium capable of degrading the plastics. Results showed varied degrees of weight loss after 90 experimental days, with the treated plot recording 18% weight loss. Post bioremediation, soil concentrations of Si, S, and Fe increased while concentrations of C, O, Na, Mg, Al, Cl, and K decreased.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Marine
Luu Viet Dung, Truong Huu Duc, Le Thi Khanh Linh, Trinh Thi Dieu Ly, Hoang Anh Duong, Nguyen Thi My Hao
Summary: Plastics are essential materials in the modern world, but plastic pollution in the ocean is a critical environmental issue. The study analyzed microplastic contamination in sediment cores from mangrove forests in Northern Vietnam, revealing high concentrations of microplastics and the influence of anthropogenic activities on pollution levels. Further research is needed to understand the accumulation rates and sources of microplastics to minimize their impact on aquatic life and the environment.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
Tiezhu Li, Yijin Wang, Meng Jiao, Zhen Zhao, Ruilong Li, Chengrong Qin
Summary: The study focuses on the effect of mangrove root systems on the migration of microplastics in sediment. By analyzing the spatial distribution of microplastics in different zones and their correlation with sediment properties, it was found that the presence of mangrove root systems significantly increased the abundance of microplastics near the roots. Pore water content and pH were found to influence the abundances of different microplastic characteristics and promote their accumulation towards the root systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Melanie Ourgaud, Nam Ngoc Phuong, Laure Papillon, Christos Panagiotopoulos, Francois Galgani, Natascha Schmidt, Vincent Fauvelle, Christophe Brach-Papa, Richard Sempere
Summary: In this study, the performance of the newly developed laser direct infrared (LDIR) technique for marine microplastics (MPs) analysis was evaluated for the first time. An optimized protocol using an 8 μm porosity polycarbonate filter placed on a Kevley slide was proposed, enabling preconcentration and efficient quantification of MPs. The technique showed high recoveries and negligible blank values for particle sizes ranging from 200 to 500 μm. Application of this technique to Mediterranean marine samples indicated consistent results with the literature, identifying PVC, PE, and PP as the predominant polymer types.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Shu-Yan Ren, Hong-Gang Ni
Summary: Microplastics (MPs) are a pervasive emerging pollutant with significant impact on the ecosystem, but certain microorganisms in the natural environment can degrade them without causing secondary pollution. This study screened microorganisms capable of degrading 11 different types of MPs as carbon sources and explored the degradation mechanism. A stable microbial community was obtained after approximately 30 days of domestication, with varying bacterial growth and degradation rates for different MPs. The degradation half-life ranged from 67 to 116 days.
Article
Environmental Sciences
Lingshi Yin, Xiaofeng Wen, Danlian Huang, Guangming Zeng, Rui Deng, Ruyi Liu, Zhenyu Zhou, Jiaxi Tao, Ruihao Xiao, Heming Pan
Summary: This study reveals the accumulation of microplastics in freshwater reeds, with varying levels of abundance in different areas. Lake water and fisheries are identified as significant sources of microplastics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Yinglin Wu, Xiaohai Chen, Liyin Wen, Zitong Li, Meiyan Peng, Hongyi Wu, Ling Xie
Summary: This study investigates the impact of human activities on microplastics accumulation in mangrove sediments. The results show that urban residents and tourists contribute significantly to the high abundance of microplastics, while fishery waste also plays a role. Densely populated urban areas and coasts surrounded by geographical barriers have higher levels of microplastic accumulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Deonie Allen, Steve Allen, Sajjad Abbasi, Alex Baker, Melanie Bergmann, Janice Brahney, Tim Butler, Robert A. Duce, Sabine Eckhardt, Nikolaos Evangeliou, Tim Jickells, Maria Kanakidou, Peter Kershaw, Paolo Laj, Joseph Levermore, Daoji Li, Peter Liss, Kai Liu, Natalie Mahowald, Pere Masque, Dusan Materic, Andrew G. Mayes, Paul McGinnity, Iolanda Osvath, Kimberly A. Prather, Joseph M. Prospero, Laura E. Revell, Sylvia G. Sander, Won Joon Shim, Jonathan Slade, Ariel Stein, Oksana Tarasova, Stephanie Wright
Summary: The study analyzes the processes and fluxes of the marine-atmospheric micro(nano)plastic cycle and highlights the limited observations. A global observation strategy for marine-atmospheric micro(nano)plastics is proposed to address the uncertainties and knowledge gaps.
NATURE REVIEWS EARTH & ENVIRONMENT
(2022)
Review
Environmental Sciences
Nam Ngoc Phuong, Vincent Fauvelle, Christian Grenz, Melanie Ourgaud, Natascha Schmidt, Emilie Strady, Richard Sempere
Summary: The widespread presence of microplastics has been demonstrated in various geographic areas on Earth, particularly in marine ecosystems where they can have harmful effects. Analyzing microplastics in marine sediments is challenging due to their low concentration and complex matrix, suggesting the use of NaCl saturated solution and hydrogen peroxide for separation and digestion steps in future research.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Mahua Saha, Akshata Naik, Aniket Desai, Mandar Nanajkar, Chayanika Rathore, Manish Kumar, Priyansha Gupta
Summary: The study revealed the presence of microplastics in various matrices in the Sal estuary, with a dominance of microplastic fibers and smaller particles in biota. These microplastics were also found in the digestive tracts of fish species and could pose a potential hazard to human health and the environment. The most prevalent polymer types identified in the study were polyacrylamide, polyacetylene, ethylene vinyl alcohol, polyvinyl chloride, and polyamide.
Review
Environmental Sciences
Zeinab Maghsodian, Ali Mohammad Sanati, Saeed Tahmasebi, Malek Hossein Shahriari, Bahman Ramavandi
Summary: Microplastics are a emerging pollutant that can enter marine environments like mangrove forests and interfere with the health of the environment and organisms. The concentration of microplastics in sediments is high and fiber and bright color microplastic particles are more common. In addition, mangrove forests exposed to fishing, coastal tourism, urban, and industrial wastewater have higher concentrations of microplastics.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Renju Liu, Sufang Zhao, Benjuan Zhang, Guangyu Li, Xiaoteng Fu, Peisheng Yan, Zongze Shao
Summary: Plastic pollution poses a threat to marine ecosystems, with mangrove areas being heavily polluted. This study identified a diverse bacterial community capable of degrading polystyrene in a subtropical mangrove area. The genera Novosphingobium and Gordonia showed high degradation capability for polystyrene.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Lingyun Yu, Ruili Li, Minwei Chai, Bing Li
Summary: This study investigates the vertical distribution and characteristics of microplastics in sediment cores from six representative mangroves in China. The abundance of microplastics increases exponentially from bottom to surface sediments, mainly comprising white, fiber-shaped particles of sizes ranging from 1000 to 5000 μm.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Muhammad Reza Cordova, Yaya Ihya Ulumuddin, Triyoni Purbonegoro, Akihiro Shiomoto
Summary: The investigation in Muara Angke Wildlife Reserve in Jakarta revealed that sediments in the outer mangrove area contained more microplastics, mainly consisting of polystyrenes, polypropylene, and polyethylene. This dataset may serve as a benchmark for microplastic studies in other mangroves across Indonesia.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Katerina Karkanorachaki, Evdokia Syranidou, Nicolas Kalogerakis
Summary: Plastic pollution is a global issue, and the vertical transfer process is crucial for modeling the fate of plastics and microplastics in the marine environment. Experimental results show that density, fouling, and sample form significantly affect the sinking characteristics of polymers.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Analytical
Hadiseh Haidari, Seyed Enayat Hashemi, Bahman Ramavandi, Farzaneh Nasrzadeh
Summary: This study evaluated the efficiency of electrokinetic-assisted phytoremediation (EAPR) in treating solid waste leachate. The results showed that the EAPR process is an effective option for eliminating contaminants and hazards from landfill leachate.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Shamim Hajiouni, Azam Mohammadi, Bahman Ramavandi, Hossein Arfaeinia, Gabriel E. De-la-Torre, Agnes Tekle-Roettering, Sina Dobaradaran
Summary: This study reveals that urban runoff is a significant source of microplastics and phthalate acid esters pollution in the northern part of the Persian Gulf, highlighting the need for attention and action to control this issue.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Rauf Foroutan, Seyed Jamaleddin Peighambardoust, Reza Mohammadi, Seyed Hadi Peighambardoust, Bahman Ramavandi
Summary: The aim of this study was to develop a new magnetic nanocomposite for removing Cu (II) from groundwater using walnut shell ash (WSA)/starch/Fe3O4. The nanocomposite was successfully synthesized and showed a high specific active surface area. The Cu adsorption followed the Freundlich and Langmuir models, and the process was spontaneous and exothermic. Kinetic adsorption data fitted the pseudo-second order model.
Review
Environmental Sciences
Zeinab Maghsodian, Ali Mohammad Sanati, Saeed Tahmasebi, Malek Hossein Shahriari, Bahman Ramavandi
Summary: Microplastics are a emerging pollutant that can enter marine environments like mangrove forests and interfere with the health of the environment and organisms. The concentration of microplastics in sediments is high and fiber and bright color microplastic particles are more common. In addition, mangrove forests exposed to fishing, coastal tourism, urban, and industrial wastewater have higher concentrations of microplastics.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Feyzollah Khoshtinat, Tayebeh Tabatabaie, Bahman Ramavandi, Seyedenayat Hashemi
Summary: This study aimed to remove phenol from petrochemical wastewater using the catalyst extracted from pier waste sludge to activate peroxy-monosulfate (PMS). The physical and chemical properties of the catalyst were evaluated, and various operational parameters were tested to optimize phenol removal. The results showed that the catalyst had multiple functional groups on its surface, and the pH factor had a significant impact on the removal efficiency. However, the stability of the catalyst decreased after five cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Rauf Foroutan, Seyed Jamaleddin Peighambardoust, Reza Mohammadi, Seyed Hadi Peighambardoust, Bahman Ramavandi
Summary: A novel heterogeneous catalyst based on walnut shell ash (WSA)/ZnO/K2CO3 composite was synthesized and successfully applied for the production of biodiesel via the transesterification process. The effect of independent variables including temperature, time, methanol to oil ratio, and catalyst concentration on the process efficiency was investigated using the response surface method-central composite design. The results confirmed the activity potential of the catalyst and the suitability of the produced biodiesel as a substitute for diesel-derived fuels.
Article
Materials Science, Multidisciplinary
Amir Ahmadi, Rauf Foroutan, Hossein Esmaeili, Seyed Jamaleddin Peighambardoust, Saeed Hemmati, Bahman Ramavandi
Summary: In this research, montmorillonite clay was magnetically modified by starch and cobalt-ferrite and used to remove dyes from water. The nanocomposite exhibited significant sorption efficiency and capacity for methyl violet and methylene blue dyes. The sorption process was found to be physical, favorable, and exothermic. The nanocomposite also showed potential in cleaning textile wastewater.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Farzad Mirzaie, Fatemeh Teymori, Seyedehfatemeh Shahcheragh, Sina Dobaradaran, Hosein Arfaeinia, Raheleh Kafaei, Soleyman Sahebi, Sima Farjadfard, Bahman Ramavandi
Summary: One of the environmental effects of COVID-19 is the contamination of ecosystems with antibiotics, including wastewater treatment plants, seawater, and sediment. The pollution of azithromycin (Azi) has significantly increased compared to previous studies, indicating a potential threat to antibiotic resistance in ecosystems.
Article
Environmental Sciences
Rauf Foroutan, Seyed Jamaleddin Peighambardoust, Reza Mohammadi, Seyed Hadi Peighambardoust, Bahman Ramavandi
Summary: In this study, banana peel waste was utilized for biochar production, and then modified into nanocomposites with significantly increased surface area for efficient Cd2+ adsorption. The magnetic nano-composites showed excellent ability to adsorb Cd2+, indicating potential for wastewater treatment applications.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Fatemeh Moradian, Bahman Ramavandi, Neemat Jaafarzadeh, Esmaeil Kouhgardi
Summary: In this study, the saline leachate of Bushehr coastal city in Iran was purified using the UV/US/IO4- process. By optimizing the parameters, the purification process achieved satisfactory results. The system proved to be effective in purifying high salinity waste leachate.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Farshid Soleimani, Sina Dobaradaran, Amir Vazirizadeh, Gholamhossein Mohebbi, Bahman Ramavandi, Gabriel E. De-la-Torre, Iraj Nabipour, Torsten C. Schmidt, Thomas E. Novotny, Ammar Maryamabadi, Zahra Kordrostami
Summary: This study evaluated the toxic effects of cigarette butt leachates on juvenile fish and found that even low concentrations of leachates can cause lethality and pose a threat to fish population density.
Article
Environmental Sciences
Mohamadamin Amarzadeh, Saeed Salehizadeh, Sobhan Damavandi, Nabisab Mujawar Mubarak, Mina Ghahrchi, Bahman Ramavandi, Yousef Dadban Shahamat, Negin Nasseh
Summary: This study proposes an ultrasound-assisted electro-Fenton process for removing penicillin G (PNG) and ciprofloxacin (CIP) from aqueous solutions. The experiments show that the sono-electroFenton (SEF) process can efficiently remove PNG and CIP, and achieve mineralization. Additionally, this study provides the first human health risk assessment of water containing CIP and PNG purified by different treatment systems.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Biotechnology & Applied Microbiology
Rauf Foroutan, Seyed Jamaleddin Peighambardoust, Reza Mohammadi, Seyed Hadi Peighambardoust, Bahman Ramavandi
Summary: In this study, rice husk ash (RHA) was used as a support to fabricate a heterogeneous catalyst (RHA/CuO/K2CO3) for biodiesel production. The specific surface area and surface roughness of the catalysts were characterized. The optimal conditions for maximum biodiesel yield and the activation energy of the transesterification process were determined. The biocompatibility of the process and the quality of the biodiesel were also confirmed.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Biotechnology & Applied Microbiology
Seyed Hassan Ahmadi, Tayebeh Tabatabaie, Bahman Ramavandi, Seyed Enayat Hashemi
Summary: This study investigated the enzymatic biodegradation of amoxicillin in wastewater. The results demonstrated that under appropriate conditions, a high removal rate of amoxicillin can be achieved.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Biotechnology & Applied Microbiology
Rauf Foroutan, Reza Mohammadi, Mohammad Taheri, Amir Ahmadi, Bahman Ramavandi
Summary: The study focused on the synthesis of a new heterogeneous nanobiocomposite catalyst and its potential application in biofuel generation from edible waste oil. The results demonstrated that the catalyst exhibited good catalytic activity and reusability.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
