Article
Environmental Sciences
Edwin Barth, John McKernan, Diana Bless, Kavitha Dasu
Summary: A two-phased bench-scale study evaluated the potential use of various sorbents for chemical stabilizing agents in the solidification/stabilization treatment process of PFAS contaminated soils. Results indicated that GAC showed the highest sorption performance for PFAS compounds, significantly reducing leachability, suggesting its effectiveness in immobilization of PFAS contaminants in soil.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Environmental Sciences
Shafiqur Rahman, Ismail M. M. Rahman, Hiroshi Hasegawa
Summary: This study comprehensively analyzes and evaluates geogenic arsenic contamination in excavated soils worldwide, and provides an overview of management and mitigation methods. The study found that arsenic levels in excavated soils exceed regulatory limits, posing a threat to the environment and human health. While there are numerous arsenic remediation techniques, specific measures are required for geogenic arsenic contamination in excavated soils. Furthermore, the suitability and effectiveness of most conventional and advanced remediation techniques need further exploration.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agronomy
Junqi Wang, Weichun Gao, Junfeng Zhu, Yuxiao Yang, Yuhua Niu
Summary: Soil contaminations by heavy metals near oilfields have raised widespread concerns. To tackle this issue, a cost-effective remediation material using biochar combined with humic acid was developed. This material showed significant changes in the chemical fractions of copper and cadmium in the soil, leading to decreased availability of heavy metals. It demonstrated a higher adsorption capacity for copper and cadmium compared to biochar alone. The material's efficacy, economic feasibility, and environmental safety make it a promising solution for immobilizing heavy metals in soils.
Review
Engineering, Environmental
Son A. Hoang, Binoy Sarkar, Balaji Seshadri, Dane Lamb, Hasintha Wijesekara, Meththika Vithanage, Chathuri Liyanage, Pabasari A. Kolivabandara, Joerg Rinklebe, Su Shiung Lam, Ajayan Vinu, Hailong Wang, M. B. Kirkham, Nanthi S. Bolan
Summary: This review explores the mechanisms and effects of organic amendments in the enhanced remediation of TPH-contaminated soils, focusing on the importance of increased TPH sorption and desorption for improving soil health and facilitating biodegradation. The uncertainty of mechanisms for various organic amendments in TPH remediation processes remains a critical area for future research.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Amir Parnian, Amin Parnian, Hadi Pirasteh-Anosheh, James Nicholas Furze, Majeti Narasimha Vara Prasad, Marco Race, Piotr Hulisz, Alberto Ferraro
Summary: This study investigated the use of co-composting, a biological technique, for the remediation of oil-polluted soil. After three months of operation, the total petroleum hydrocarbon content in the polluted soil significantly reduced. The remediated soil was then added back to the surrounding environment to support the growth of the natural ecosystem.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Environmental Sciences
Chengming Li, Bing Song, Zhiliang Chen, Zequan Liu, Lei Yu, ZeJian Zhi, Yan Zhao, Hong Wei, Min Song
Summary: This study proposes using contaminated soils to prepare ceramsite as an effective method to address the threat of heavy metal-contaminated soils. The optimal mixing ratio of clay/sandy soil was determined to be 0.6:0.4, and the sintering temperature was found to be 1200 degrees C. High sintering temperature facilitated the reactions between heavy metals and aluminosilicates, leading to the immobilization of heavy metals in ceramsite.
Article
Environmental Sciences
Xiaokai Zhang, Mona Wells, Nabeel Khan Niazi, Nanthi Bolan, Sabry Shaheen, Deyi Hou, Bin Gao, Hailong Wang, Jorg Rinklebe, Zhenyu Wang
Summary: Soil heavy metal contamination is a global environmental issue, and using nano-biochar for remediation has attracted increasing attention. The interaction between nano-biochar and rhizosphere plays a crucial role in immobilizing heavy metal contaminants, but this aspect is not well studied.
ENVIRONMENTAL POLLUTION
(2022)
Review
Environmental Sciences
Mahmoud Mazarji, Muhammad Tukur Bayero, Tatiana Minkina, Svetlana Sushkova, Saglara Mandzhieva, Tatiana Bauer, Alexander Soldatov, Mika Sillanpaa, Ming Hung Wong
Summary: This paper reviews the application of biochar-based nanocomposite materials for soil remediation, particularly when combined with nanomaterials, and compares their efficacy against biochar alone. The study found that biochar nanocomposites are most effective when combined with metallic nanoparticles (Fe3O4 and FeS) and carbonaceous nanomaterials (graphene oxide and chitosan). The paper also discusses different remediation mechanisms and assesses the effects of nanocomposites on soil characteristics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Environmental Sciences
Saravanan Rajendran, T. A. K. Priya, Kuan Shiong Khoo, Tuan K. A. Hoang, Hui-Suan Ng, Heli Siti Halimatul Munawaroh, Ceren Karaman, Yasin Orooji, Pau Loke Show
Summary: Heavy metal pollution is a global environmental challenge that poses a significant threat to human life. Various methods have been explored to eliminate heavy metal pollutants from the environment, but are constrained by high expenses, processing duration, geological problems, and political issues. The immobilization of metals, phytoextraction, and biological methods have proven practical in treating metal contaminants from the soil.
Article
Environmental Sciences
Yi-Zhao Liu, Ri-Dong Fan, Song-Yu Liu, Huan He
Summary: This study explored the activation effect of oxalic acid on bone meal (BM) and developed an oxalic acid-activated bone meal (ABM) for improving heavy metal immobilization efficiency. The results showed that ABM had higher solubility and outperformed BM in terms of immobilizing lead (Pb) and cadmium (Cd). The leaching concentration of Pb from ABM immobilized soils met regulatory limits and was significantly lower than that from BM immobilized soils. After 90 days of curing, ABM also showed better Cd immobilization performance than BM.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Xiaomao Wu, Cheng Zhang, Huaming An, Ming Li, Xinglu Pan, Fengshou Dong, Yongquan Zheng
Summary: This study successfully optimized the degradation conditions of deltamethrin-degrading strain and immobilized the enriched strain in a matrix for enhanced degradation efficiency. Immobilized strain could remove an average of 78.81% of deltamethrin in a continuous reactor system and showed superior degradation potential in field soils.
Article
Environmental Sciences
Zelin Xu, Ning Nie, Kaiyan Liu, Qi Li, Haojie Cui, Huihui Du
Summary: This study found that using analog soil organo-ferrihydrite composites made with either living or non-living organics (bacterial cells or humic acid), can stabilize both Cd and As in contaminated soils. Adding organo-ferrihydrite significantly reduced the bioavailable fraction of Cd and As, without affecting soil pH, microbial community abundance and diversity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biotechnology & Applied Microbiology
Yu-Ying Wang, Ling-Cong You, Hao-Hao Lyu, Yu-Xue Liu, Li-Li He, Yu-Di Hu, Fan-Chen Luo, Sheng-Mao Yang
Summary: Biochar-mineral composites were found to effectively immobilize heavy metals in naturally contaminated soil and reduce their bioavailability to plants. The addition of biochar-attapulgite composite at a 2% application rate demonstrated the highest efficacy in heavy metal immobilization. These findings highlight the potential of biochar-mineral composites as eco-friendly solutions for heavy metal remediation.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Environmental Sciences
Hongling Bu, Qinkai Lei, Hui Tong, Chengshuai Liu, Shujie Hu, Wenpo Xu, Yujie Wang, Manjia Chen, Jiangtao Qiao
Summary: Abiotic reduction of iron (oxyhydr)oxides by aqueous Fe(II) is an important process in the Fe cycle in soil. This study investigates the phase transformation of Lep-HA coprecipitates induced by Fe(II) and its implications for immobilizing heavy metals, particularly Cd(II). The presence of co-precipitated HA reduces the solid phase transformation of Fe, and newly formed magnetite immobilizes Cd(II) through surface complexes, incorporation, or structural substitution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Qianjun Liu, Jiayi Luo, Jiepeng Tang, Zhiliang Chen, Zhaowei Chen, Qintie Lin
Summary: Iron oxide-lignin composites (GLS) are effective in immobilizing Cd and Pb in soil and exhibit better stability under acid rain conditions. GLS has a higher adsorption capacity and unique microstructure, transforming mobile and exchangeable Cd/Pb into organic and amorphous Fe oxide-bound fractions.
Article
Engineering, Environmental
Sebastian Meier, Francisca Moore, Maria-Eugenia Gonzalez, Jorge Medina, Pedro Campos, Naser Khan, Jonathan Cumming, Mario Sanhueza, Jaime Mejias, Arturo Morales, Juan Hirzel, Alex Seguel
Summary: Biochar (BC) is a carbonaceous material produced by slow pyrolysis of biomass under oxygen-limited conditions, which has been shown to improve soil physicochemical characteristics and plant growth in contaminated soils. Specifically, the addition of chicken manure biochar (CMB), oat hull biochar (OHB), or pine bark biochar (PBB) was found to effectively reduce copper (Cu) bioavailability and enhance plant biomass production in Cu-contaminated sandy soils. Additionally, BC additions stimulated soil microorganisms and modified microbial communities, suggesting its potential as a remediation tool for metal-contaminated soils.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2021)
Article
Environmental Sciences
Rodrigo Perez, Yasna Tapia, Monica Antilen, Manuel Casanova, Catalina Vidal, Christian Santander, Humberto Aponte, Pablo Cornejo
Summary: The combination of arbuscular mycorrhizal fungi (AMF) and organic amendments significantly promotes the growth of Oenothera picensis in Cu mine tailings, enhancing biomass production, nutrient uptake, and reducing copper availability to achieve the remediation of contaminated soils.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Plant Sciences
Pedro M. de Souza Campos, Fernando Borie, Pablo Cornejo, Sebastian Meier, Juan Antonio Lopez-Raez, Alvaro Lopez-Garcia, Alex Seguel
Summary: The study found that the interactions between plants and arbuscular mycorrhizal (AM) fungi are significantly influenced by the fungus species and intra-specific variations in root traits at the genotype level. Additionally, the growth responses related to improved nutrition depend on the plant's intrinsic acquisition efficiency.
JOURNAL OF PLANT PHYSIOLOGY
(2021)
Article
Environmental Sciences
Humberto Aponte, Pedro Mondaca, Christian Santander, Sebastian Meier, Jorge Paolini, Benjamin Butler, Claudia Rojas, Maria Cristina Diez, Pablo Cornejo
Summary: The study found that enzyme activities decreased in highly metal(loid) contaminated soils, which also had low organic carbon and clay contents, reflecting long term processes of soil degradation. Additionally, positive relationships between enzyme activities and total organic carbon were observed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agronomy
Sebastian Meier, Francisca Moore, Arturo Morales, Claudio Jobet, Rafael L. Lopez-Olivari, Humberto Aponte, Paula Cartes, Pedro Campos, Naser Khan
Summary: The study investigated the combined effect of phosphorus and water limiting conditions on wheat genotypes, revealing differences in the utilization of phosphorus and water among different genotypes, and proposing a method for categorizing wheat genotypes under different conditions.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Plant Sciences
Sebastian Meier, Francisca Moore, Nasser Khan, Maria-Eugenia Gonzalez, Jorge Medina, Jonathan Cumming, Arturo Morales, Paola Duran, Alex Seguel, Humberto Aponte
Summary: This study found that poultry manure compost can improve the bioavailability of copper-contaminated soils, promote plant growth and soil microbial activities, while indigenous arbuscular mycorrhizal inoculation may reduce plant growth and increase copper translocation in aboveground tissues.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2021)
Article
Agronomy
Jorge Medina, Marcela Calabi-Floody, Humberto Aponte, Christian Santander, Marina Paneque, Sebastian Meier, Marco Panettieri, Pablo Cornejo, Fernando Borie, Heike Knicker
Summary: The study demonstrated that adding compost made from agricultural residues with additives like halloysite or biochar can improve soil chemical properties and nutritional status, benefiting and increasing plant growth of Lolium perenne established in soils from the Mediterranean Region.
Article
Agronomy
Gustavo Curaqueo, Antonio Roldan, Ana Mutis, Marcelo Panichini, Andres Perez-San Martin, Sebastian Meier, Rodrigo Mella
Summary: The study found that higher doses of biochar significantly improved wheat biomass and grain yield, promoted indigenous AM fungi activity, enhanced soil quality properties, and increased the sustainability levels of agricultural systems.
FIELD CROPS RESEARCH
(2021)
Article
Agronomy
Christian Santander, Gladys Vidal, Antonieta Ruiz, Catalina Vidal, Pablo Cornejo
Summary: This study evaluated the impact of salinity as a eustressor on the functional quality of red lettuce. The results showed that moderate salt stress increased the phenolic compound concentration and antioxidant activity, while severe salt stress decreased antioxidant activity and biomass production.
Article
Plant Sciences
Gabrijel Ondrasek, Santosha Rathod, Kallakeri Kannappa Manohara, Channappa Gireesh, Madhyavenkatapura Siddaiah Anantha, Akshay Sureshrao Sakhare, Brajendra Parmar, Brahamdeo Kumar Yadav, Nirmala Bandumula, Farzana Raihan, Anna Zielinska-Chmielewska, Cristian Merino-Gergichevich, Marjorie Reyes-Diaz, Amanullah Khan, Olga Panfilova, Alex Seguel Fuentealba, Sebastian Meier Romero, Beithou Nabil, Chunpeng Craig Wan, Jonti Shepherd, Jelena Horvatinec
Summary: Salinization of soils and freshwater resources, caused by natural processes and/or human activities, has become an increasing issue. It affects environmental services, socioeconomic relations, and agroecosystems. Various approaches and solutions, including agro-hydrotechnical, biological, chemical, bio-ecological, and institutional solutions, are effective in combating salinity/salt stress and other constraints. Advances in computer science provide tools for predicting salinization processes under different scenarios, including climate change.
Review
Plant Sciences
Catalina Vidal, Felipe Gonzalez, Christian Santander, Rodrigo Perez, Victor Gallardo, Cledir Santos, Humberto Aponte, Antonieta Ruiz, Pablo Cornejo
Summary: Drought poses a complex challenge to agriculture worldwide, requiring a reframing of agricultural practices from an integrative perspective. This involves the exploration of new water sources, the use of drought-tolerant crops and genotypes, improved irrigation systems, and other alternatives such as biotechnological tools to enhance water use efficiency. The role of specific microbial strains in the rhizosphere has been found to increase drought tolerance in host plants through plant growth-promoting characteristics. However, the use of multi-omics approaches to understand the interactions between plant growth-promoting microbes and host plants is still limited. This review highlights the importance of studying the soil-plant-microorganism interaction at a larger scale and suggests that multi-omics approaches can help improve crop yields and meet the increasing global demand for food.
Article
Plant Sciences
Pedro M. de Souza Campos, Sebastian Meier, Arturo Morales, Laura Lavanderos, Javiera Nahuelcura, Antonieta Ruiz, Alvaro Lopez-Garcia, Alex Seguel
Summary: Quinoa is a promising crop that can tolerate different stress conditions and grow in marginal soils with low nutrient content. This study provides new insights into the phosphorus acquisition capacity of quinoa roots, finding that root biomass and morphology play a critical role in quinoa's phosphorus nutrition.
Article
Agronomy
Sebastian Meier, Pedro de Souza Campos, Ruben Palma-Millanao, Arturo Morales, Juan Hirzel, Humberto Aponte, Paula Cartes, Gabrijel Ondrasek, Alex Seguel
Summary: This manuscript aims to evaluate the influence of different wheat cultivars on soil microbial activities and functional diversity and how their interaction could affect plant performance in terms of phosphorus use efficiency (PUE) and water use efficiency (WUE). Phosphorus scarcity and water deficit stress negatively affected growth traits, P acquisition, and grain yield of wheat cultivars. The main drivers determining microorganisms' catabolic activity were water deficit stress and high P concentration in the soil.
Article
Agronomy
Maria Eugenia Avila-Salem, Humberto Aponte, Fabian Montesdeoca, Narcisa Urgiles Gomez, Dayana Cruz, Marco Orellana, Katherine Pacheco, Soraya Alvarado Ochoa, Jose Espinosa, Fernando Borie, Pablo Cornejo
Summary: This study evaluated the effects of different tillage, nitrogen fertilization, and crop rotations on soil physicochemical and biological properties in an Andean soil. Results showed that no-tillage and crop rotation significantly influenced soil properties. No-tillage promoted soil respiration, glomalin content, and the density of arbuscular mycorrhizal fungi spores. The conservative soil management system demonstrated significant improvements in soil properties compared to intensive soil management.
Article
Soil Science
Juan Hirzel, Sebastian Meier, Arturo Morales, Pablo Undurraga, Francisco Salazar
Summary: Soil acidity is a major factor affecting crop productivity, and materials such as Ash + Dregs and Ash + Dregs + Sludge can effectively neutralize soil acidity and increase yield, especially in Chilean volcanic soils. The application of these materials showed similar effects on soil parameters and wheat production compared to CaCO3, indicating their potential as alternative soil acidity correction amendments.
REVISTA BRASILEIRA DE CIENCIA DO SOLO
(2021)