Article
Environmental Sciences
Juan Francisco Morales Arteaga, Simon Gluhar, Anela Kaurin, Domen Lestan
Summary: The chemistry of toxic metalloids and metals in soil differs, making their simultaneous removal challenging. In this study, a novel remediation method was used to wash soil contaminated with arsenic (As), lead (Pb), zinc (Zn), and cadmium (Cd) using oxalic acid, Na-dithionite, and EDTA solution. Toxic elements were successfully removed from the washing solution by alkalinisation with CaO. The remediation was most effective for As, reducing its accessibility and mobility significantly. The remediation did not affect the soil's functioning and resulted in increased biomass production in Brassica napus, with reduced accumulation of metals.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Nguyen Van Thinh, Yasuhito Osanai, Tatsuro Adachi, Bui Thi Sinh Vuong, Ippei Kitano, Nguyen Thuy Chung, Phong K. Thai
Summary: The study found that agricultural soil near an old recycling lead smelter in Vietnam is heavily contaminated with heavy metals, especially lead. It proposed an effective treatment for soil remediation involving washing experiments with biodegradable chelators, leading to the identification of potential candidates for removing lead, zinc, and copper.
Article
Engineering, Environmental
Romina Ghobadi, Ali Altaee, John L. Zhou, Peter McLean, Namuun Ganbat, Donghao Li
Summary: This study integrated compost with electrokinetic (EK) remediation technology to enhance copper removal from kaolinite soil. The results showed that compost as a reusable reactive filter media (RFM) can effectively remove copper from contaminated soil.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Hongqiang Liu, Pan Chen, Hongbin Wang, Yaohui Yang, Yulun Wu
Summary: The influence of pH conditions and simulated inter-root environmental solutions on heavy metal release from contaminated soils was investigated. Soil leaching of heavy metals was found to be more likely under acidic conditions, with a risk of sustained presence in the inter-root solution. Soil washing experiments showed that ethylenediaminetetraacetic acid disodium salt (EDTA) had higher removal efficiency for heavy metals compared to other agents tested. X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) analysis suggested that EDTA was particularly effective in removing steady-state Pb, while citric acid had an insignificant effect. EDTA also showed significantly higher removal efficiency for Zn and Cu compared to citric acid.
WATER AIR AND SOIL POLLUTION
(2023)
Review
Plant Sciences
Jitendra Kumar Sharma, Nitish Kumar, N. P. Singh, Anita Rani Santal
Summary: The contamination of soil with heavy metals is a significant research topic due to its hazardous effects. Various factors such as rapid industrialization, vehicle emissions, agricultural practices, and waste disposal contribute to soil contamination. These contaminants not only affect the soil, but also contaminate groundwater and lead to a decline in food quality. The use of phytoremediation, which involves the utilization of plant proteins and plant-microbe interactions, is a promising and cost-effective method to restore contaminated soils.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Jie Li, Qun Zhao, Yihuang Zhao, Hecheng Fu, Xiaoqing Li, Jianhong Huang, Yingjie Li, Xuewei Hu, Senlin Tian
Summary: The study explores the use of self-sustaining smoldering technology for remediating multiple heavy metal-contaminated mine soils. The results show that this method reduces the mobility and bioavailability of heavy metals, improves soil nutrient status, and promotes plant growth.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Plant Sciences
Mohammed Alsafran, Muhammad Hamzah Saleem, Hareb Al Jabri, Muhammad Rizwan, Kamal Usman
Summary: Contamination of agricultural soils with heavy metals presents ecological and environmental problems. Removing heavy metals has emerged as a solution, but the understanding of metal toxicity and removal from soil is limited. Therefore, selecting useful chemicals to improve plant growth and expedite metal phytoremediation is necessary.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Environmental Sciences
Georgios Charvalas, Alexandra D. Solomou, Kyriakos D. Giannoulis, Elpiniki Skoufogianni, Dimitrios Bartzialis, Christina Emmanouil, Nicholaos G. Danalatos
Summary: This article provides an overview of alternative methods for restoring contaminated soils (phytoremediation), focusing on areas of excessive metallurgical activities in Greece. Two case studies in Northern Greece were selected, one characterized by metal mining and a hot summer Mediterranean climate, and the other involving lignite mining and pollution under subtropical climate.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Biotechnology & Applied Microbiology
Guanlong Yu, Peiyuan Li, Guoliang Wang, Jianwu Wang, Yameng Zhang, Shitao Wang, Kai Yang, Chunyan Du, Hong Chen
Summary: Constructed wetlands are increasingly used as an eco-friendly system for the removal of heavy metals and metalloids from aqueous environments. This review assesses the use of CWs through bibliometric analysis and highlights the importance of key factors such as pH, chemical oxygen demand, and temperature for efficient removal. Further research is needed to evaluate synergistic toxicity between pollutants and optimize pollutant remediation efficiency by combining CWs with other technologies.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2021)
Review
Polymer Science
Katarina Balikova, Bence Farkas, Peter Matus, Martin Urik
Summary: Biosorption is an effective technique for treating heavy-metal-bearing wastewaters, and xanthan and gellan are emerging as new green-based materials for the cost-effective and efficient remediation of heavy metal-contaminated waters.
Article
Environmental Sciences
Temoor Ahmed, Muhammad Noman, Munazza Ijaz, Shafaqat Ali, Muhammad Rizwan, Usman Ijaz, Amir Hameed, Usama Ahmad, Yanli Wang, Guochang Sun, Bin Li
Summary: Heavy metals contamination in agricultural soils poses risks to the environment and plants. Nanoparticles have been utilized to reduce toxic HMs contents, but the long-term efficiency remains uncertain.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Biotechnology & Applied Microbiology
Xiao Wang, Qing Guo, Xiaoyan Wang, Yong Jia, Wanke Chen, Qianfeng Zhang, Jing Yuan
Summary: In this study, composite repair material was obtained through composting and fermentation of straw biochar and sludge, and its remediation effect on soil heavy metals copper and lead was investigated. The results showed that the addition of remediation materials effectively reduced the content and effectiveness of heavy metals in the soil and promoted the change of Cu and Pb morphology in the heavy metal-contaminated soil, thus achieving the remediation of the heavy metal-contaminated soil.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Environmental Sciences
Paula Godinho Ribeiro, Osnar Obede da Silva Aragao, Gabriel Caixeta Martins, Marcos Rodrigues, Jean Michel Pereira Souza, Fatima Maria de Souza Moreira, Yuncong C. Li, Luiz Roberto Guimaraes Guilherme
Summary: Hydrothermally-altered feldspar (HYP) has been found to effectively immobilize heavy metals in soil and act as a source of nutrients for plants, making it a promising technology for revegetation of contaminated sites. In addition to promoting plant growth, HYP also reduces the absorption of heavy metals by plants, showing potential for use in phytostabilization programs.
Article
Engineering, Environmental
Esio de Castro Paes, Gustavo Vieira Veloso, Manoel Nelson de Castro Filho, Saulo Henrique Barroso, Elpidio Inacio Fernandes-Filho, Mauricio Paulo Ferreira Fontes, Emanuelle Merce s Barros Soares
Summary: Physical and chemical remediation techniques used in contaminated areas are expensive and damaging to the soil structure. Biological alternatives, such as phytoremediation, are economical and applicable to large areas. This study evaluates the ability of plant species adapted to Brazilian semi-arid conditions to grow in soils contaminated with Pb, and concludes that P. juliflora, A. peregrina, and U. ruziziensis are more suitable for cultivation in soils containing high levels of Pb.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Sheetal Manori, Vijendra Shah, Vandana Soni, Kasturi Dutta, Achlesh Daverey
Summary: The study found that the use of pine needle biochar at 100 mg/kg can enhance the phytoremediation ability of Bidens pilosa for cadmium in soil, with biochar treatment also increasing the cadmium concentration in the plant's roots and shoots.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Jagannathan Umamaheswari, Subramainam Shanthakumar
Summary: This study demonstrated the phycoremediation potential of C. pyrenoidosa in PSRMW treatment and the application of the produced algal biomass as a soil amendment for the growth of A. angulosus.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Analytical
Andrea Vergnano, Alberto Godio, Carla Maria Raffa, Fulvia Chiampo, Jorge A. Tobon Vasquez, Francesca Vipiana
Article
Chemistry, Multidisciplinary
Carla Maria Raffa, Fulvia Chiampo, Andrea Vergnano, Alberto Godio
Summary: The main goal of soil bioremediation is to remove pollutants to the maximum extent possible, and careful monitoring of pollution concentration can provide information about process efficacy and removal efficiency. Detailed analysis of residual pollution composition can provide insight into the removal or presence of single compounds, especially when pollution is a mixture of chemical species. Monitoring the pollution composition changes during a test revealed an overall removal efficiency of about 65%, with different hydrocarbon clusters showing removal efficiencies between 53% and 88%. Kinetic study of the degradation process showed that a second-order kinetic model better described the process than a first-order model.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Environmental
Carla Maria Raffa, Andrea Vergnano, Fulvia Chiampo, Alberto Godio
Summary: This study found that the efficient bioremediation of diesel oil-contaminated soil can be achieved after 84 days if the water content is in the range 8-12% by weight, and C/N is in the range 100-180, with a removal efficiency of about 65-70%. The characteristics of the microcosms can also affect the diesel oil removal efficiency. The dielectric permittivity showed significant variations during the bioremediation process.
JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
D. Saranya, S. Shanthakumar
Summary: The supplementation of CO2 gas in wastewater treatment using phycoremediation can enhance nutrient removal efficiency and biomass productivity of microalgae. Different species of microalgae show varying advantages in wastewater treatment, such as Chlorella sorokiniana demonstrating better nutrient removal efficiency and Nannochloropsis oculata being suitable for biodiesel production.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Review
Environmental Sciences
R. Ricky, S. Shanthakumar
Summary: PPCPs are of concern due to their large usage and persistence, traditional technologies are unable to completely eliminate these pollutants, phycoremediation has advantages in degrading pollutants but industries face difficulties in adopting it as a treatment process. Recent research focuses on integrating phycoremediation with other technologies to effectively treat PPCPs.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
David Javier Castro Rodriguez, Omar Gutierrez Benitez, Enmanuel Casals Perez, Micaela Demichela, Alberto Godio, Fulvia Chiampo
Summary: This paper discusses the application of statistical analysis in the bioremediation of hydrocarbon-polluted soils. The results demonstrate the effectiveness of this method in identifying the significance of factors and their interactions, especially when some factors cannot be defined numerically.
APPLIED SCIENCES-BASEL
(2022)
Editorial Material
Chemistry, Multidisciplinary
Fulvia Chiampo, Massimo Zacchini
APPLIED SCIENCES-BASEL
(2021)
Review
Green & Sustainable Science & Technology
Rajamanickam Ricky, Subramanian Shanthakumar, Ganapathy Pattukandan Ganapathy, Fulvia Chiampo
Summary: The tannery industry consumes a large amount of water and generates wastewater with high levels of chemicals and toxic gases, posing a serious environmental issue. Traditional wastewater treatment methods are inadequate, and implementing a Zero Liquid Discharge (ZLD) system can provide a sustainable solution by recycling and reusing treated wastewater while reducing water consumption and mitigating disasters in tannery industry areas.
Article
Soil Science
Andrea Vergnano, Carla Maria Raffa, Alberto Godio, Fulvia Chiampo
Summary: This study monitored the electromagnetic properties of different soil mesocosms polluted with diesel oil, aiming to understand the relationship between the development of biological activity and the temporal behavior of these properties. The results showed that the biostimulated mesocosms exhibited a marked decrease in electrical permittivity and electrical conductivity, especially in the one with microbial inoculation. The analyses at the end of the experiment revealed that the microbial activity and pollutant degradation were higher in the inoculated microcosm. Both biostimulated mesocosms achieved similar percentages of diesel oil removal after 8 months, indicating the successful biodegradation process. The long-term monitoring also revealed the dynamics of the electromagnetic properties during the bioremediation process.
Article
Biotechnology & Applied Microbiology
Rajamanickam Ricky, Fulvia Chiampo, Subramaniam Shanthakumar
Summary: In this study, the growth and biochemical composition of Chlorella vulgaris under antibiotic stress were investigated. The results showed that C. vulgaris can adapt to antibiotic contamination and remove CIP and AMX, while increasing the production of valuable biomass.
BIOENGINEERING-BASEL
(2022)
Review
Biotechnology & Applied Microbiology
Carla Maria Raffa, Fulvia Chiampo
Summary: Pesticides, including herbicides, are chemical compounds used to eliminate pests and protect crops, but their excessive use and persistence in the environment have led to pollution issues. Bioremediation methods, such as microbial metabolism, are being explored as eco-friendly solutions to reduce the impact of pesticide pollution on soil and water. Regulations on pesticide use vary by country, reflecting different perceptions of toxicity and market values of crops.
BIOENGINEERING-BASEL
(2021)
Article
Engineering, Chemical
Nimita Francy, Subramanian Shanthakumar, Fulvia Chiampo, Yendaluru Raja Sekhar