Review
Environmental Sciences
Aziz-Ur-Rahim Bacha, Iqra Nabi, Muhammad Zaheer, Wenbiao Jin, Lei Yang
Summary: Plastic waste has received significant research attention due to its accumulation, environmental issues, and impact on living organisms. There is an urgent need to remove plastic waste from the environment, and biodegradation is a promising treatment method. However, there is limited review on the bio-decomposition of plastics and the existing microbial species involved. This study provides an overview of influencing factors, existing species, and research gaps in biodegradation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Shuo Li, Yalun Yang, Shanshan Yang, Heshan Zheng, Yongjie Zheng, M. Jun, Dillirani Nagarajan, Sunita Varjani, Jo-Shu Chang
Summary: Plastics have become an essential part of life, but when they enter the environment, they break down into smaller fragments called microplastics (MPs) which are detrimental to the environment and human health. Bioremediation is considered the most environmentally friendly and cost-effective method for MP degradation, but there is limited knowledge about it. This review explores the sources and migration behavior of MPs, discusses biodegradation potential and mechanisms, analyzes the factors influencing biodegradation, and discusses the prospects and challenges of biodegradation technologies for MPs.
Article
Engineering, Chemical
Angelica Julieta Alvillo-Rivera, Sofia Esperanza Garrido-Hoyos, Genoveva Rosano-Ortega
Summary: Mexico, as the world's main silver producer, generates wastewater containing cyanide and heavy metals during the mining process. This study aimed to investigate the ability of a bacterial consortium isolated from a tailings dam to biodegrade cyanide. The effects of pH, temperature, inoculum concentration, and three metals (copper, iron, nickel) on cyanide biodegradation were determined. The results showed that the highest cyanide removal (88%) was achieved at a pH of 9.5, temperature of 25°C, and 15% inoculum, while copper caused inhibitory effects (68% cyanide biodegradation) and iron promoted biodegradation (91%).
Article
Environmental Sciences
Maria Jose Alvarado-Lopez, Sofia E. Garrido-Hoyos, Maria Elena Raynal-Gutierrez, Elie G. El-Kassis, Victor M. Luque-Almagro, Genoveva Rosano-Ortega
Summary: A native cyanide-degrading bacterial consortium was isolated from goldmine tailing sediments and showed high efficiency in degrading cyanide in alkaline synthetic wastewater. 16S rRNA gene sequencing and proteomic fingerprinting identified the bacterial strains as Microbacterium paraoxydans, Brevibacterium casei, Brevundimonas vesicularis, Bacillus cereus, and Cellulosimicrobium sp. These bacteria, especially Cellulosimicrobium, showed potential for cyanide degradation and could be used for tertiary treatment of mine tailings.
Review
Environmental Sciences
Aswin Thacharodi, Saqib Hassan, Tripti Singh, Ramkrishna Mandal, Jeganathan Chinnadurai, Hilal Ahmad Khan, Mir Ashiq Hussain, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: PAHs, a class of organic priority pollutants, pose significant public health and environmental concerns due to their carcinogenic, genotoxic, mutagenic, and cytotoxic properties. With increased awareness of their negative effects on the environment and human health, research on eliminating PAHs from the environment has exponentially increased. Various environmental factors, such as nutrients, microorganisms present and their abundance, and the nature and chemical properties of PAHs, affect the biodegradation of PAHs. While bacteria and fungi have garnered the most attention for their biodegradation capacity, a comprehensive understanding of microbial communities and their enzymatic and biochemical properties is crucial for successful PAH degradation. This review aims to comprehensively discuss the latest findings and advancements in the microbial bioremediation of PAHs to enhance the broader understanding of PAHs bioremediation in the environment.
Article
Biochemistry & Molecular Biology
Narges Malmir, Mohammadreza Zamani, Mostafa Motallebi, Najaf Allahyari Fard, Lukhanyo Mekuto
Summary: In this study, 24 fungal strains were tested for their ability to resist and degrade cyanide, and Trichoderma harzianum was found to have the highest efficiency in degrading cyanide at a concentration of 15 mM. Molecular analysis confirmed the involvement of several enzymes in the cyanide degradation process.
Editorial Material
Multidisciplinary Sciences
Terry J. Mcgenity, Pierre Philippe Laissue
Summary: Understanding the destiny of crude oil that enters the ocean is crucial in minimizing its negative impacts on the environment, economy, and society. Research has found that microbial degradation is a key process in removing hydrocarbons from oil, and turbulent seas and response measures can promote the growth of oil-degrading microorganisms. The discovery of bacteria attaching to oil droplets and reshaping them enhances our understanding of oil transport and biodegradation in ecologically sensitive areas.
Article
Agricultural Engineering
Saloni Rishi, Ispreet Kaur, Mariya Naseem, Vivek Kumar Gaur, Sandhya Mishra, Suchi Srivastava, Harvinder Singh Saini, Pankaj Kumar Srivastava
Summary: Free cyanide, a hazardous pollutant released from steel industries, can be remediated using a consortium of Trichoderma saturnisporum and Trichoderma citrinoviride. These microorganisms displayed increased growth and degradation activity in the presence of 20 mg-CN L-1, with degradation rates of over 99% within 3 days. FTIR analysis showed changes in functional groups on microbial cell walls after cyanide treatment.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Megan D. Welman-Purchase, Julio Castillo, Alba Gomez-Arias, Andisiwe Matu, Robert N. Hansen
Summary: This study aims to reveal the genomic machinery of indigenous bacteria to degrade cyanide in gold tailings. The research found that certain indigenous bacteria have the ability to degrade cyanide and use it when nitrogen sources are lacking, contributing to the natural attenuation of cyanide in gold tailings.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Angelica Julieta Alvillo-Rivera, Sofia Esperanza Garrido-Hoyos, German Buitron
Summary: This study investigated the biodegradation of cyanide in mining tailings by a bacterial consortium isolated from a tailings dam. The results showed that the use of biofilter reactors with immobilized biomass was effective in promoting cyanide biodegradation, with high degradation efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Materials Science, Multidisciplinary
Angelica Alvillo-Rivera, Sofia Garrido-Hoyos, German Buitron, Pandiyan Thangarasu-Sarasvathi, Genoveva Rosano-Ortega
Summary: The article discusses the waste treatment issues faced by mining activities in Mexico and proposes both traditional and non-traditional waste treatment strategies, with a focus on the feasibility of using microorganisms to treat high-cyanide waste.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Environmental
Rongrong Gao, Rui Liu, Chaomin Sun
Summary: Huge quantities of plastic wastes pose serious ecological problems and impact global carbon cycling. Researchers have successfully isolated a fungus named Alternaria alternata FB1 from plastic waste samples, which showed remarkable degradation capabilities on polyethylene (PE) film. This discovery provides a promising candidate for further investigation of degradation mechanisms and development of biodegradable products.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Magdalena Toporowska
Summary: This study demonstrates the degradation of microcystins by Spirodela polyrhiza and its associated microorganisms under laboratory conditions. The strongest degradation rate was observed for MC-RR, followed by MC-LR, while MC-LF showed relatively stability. The microorganisms associated with S. polyrhiza were found to be responsible for the observed degradation of microcystins.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Veterinary Sciences
Rittikeard Prachumchai, Anusorn Cherdthong, Metha Wanapat
Summary: Two experiments were conducted to screen for ruminal cyanide-utilizing bacteria and evaluate the effects of fresh cassava root and pellets containing high sulfur on cyanide content, gas production parameters, in vitro degradability, and ruminal fermentation. The results showed that increasing cyanide concentration significantly affected the growth of cyanide-utilizing rumen bacteria, and increasing fresh cassava root levels could enhance gas production in vitro.
VETERINARY SCIENCES
(2021)
Article
Polymer Science
Humberto D. Jimenez-Torres, Saira L. Hernandez-Olmos, Eire Reynaga-Delgado, Eulogio Orozco-Guareno
Summary: Lignin was chemically modified to enhance hydrogel degradation, which was used as a carbon and nitrogen source by a bacterial consortium. A hydrogel was synthesized and cross-linked with modified lignin. The structural changes, mass loss, and final composition of the hydrogel were evaluated as the selected strains grew in a culture broth with the hydrogel. The results showed that the hydrogel was assimilated by the bacteria while preserving its water retention capacity and that the bacterial consortium partially degraded the hydrogel.
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)