Article
Environmental Sciences
Youfa Luo, Zhilin Zheng, Pan Wu, Yonggui Wu
Summary: The application of biogas residue slightly increased the concentrations of Zn and Cd in the leachates; however, the establishment of plants could avoid the excessive leaching of heavy metals coming from the biogas residue. Regardless of single or co-planting patterns, the bioavailability of Cu, Zn, and Cd slightly increased, but Pb bioavailability significantly decreased.
Article
Engineering, Chemical
Huibin Zhang, Yanan Wang, Yuzheng He, Shenghang Xu, Bin Hu, Huazhen Cao, Jun Zhou, Guoqu Zheng
Summary: This study introduces an integrated disposition method for handling hazardous arsenic by returning arsenic-bearing byproducts to the copper flash smelting process, achieving a balance of arsenic brought in and out of the copper production system. The research indicates the promising potential of the copper flash smelting process for efficient and safe disposition of arsenic via recirculation processing of arsenic-bearing byproducts.
MINERALS ENGINEERING
(2021)
Article
Environmental Sciences
Yaoqiang Ma, ChenChen Li, Jin Yan, Hanjing Yu, Huiying Kan, Wanquan Yu, Xinyu Zhou, Qi Meng, Peng Dong
Summary: Mining and smelting are major contributors to soil heavy metal pollution. While leaching and release of heavy metals from soils have been extensively studied, there is a lack of research on the release behavior of heavy metals from smelting slag from a mineralogical perspective. This study focuses on the pollution of arsenic and chromium by traditional pyrometallurgical lead-zinc smelting slag in southwest China. It investigates the release behavior of heavy metals in smelting slag based on mineralogy analysis. The results indicate that the weathering degree of slag is positively correlated with the bioavailability of heavy metals. The leaching experiment reveals that higher pH promotes the release of arsenic and chromium. It is also found that the chemical forms of arsenic and chromium change during leaching, with pyrite coating playing a crucial role in controlling their release.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Hang Sun, Xinlong Li, Yonggui Wu
Summary: Phytostabilization significantly improved slag site conditions and reduced the available concentrations of arsenic and antimony.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2021)
Article
Green & Sustainable Science & Technology
Zhongzhong Zhao, Wenhuan Liu, Yiwen Jiang, Yongfeng Wan, Renhao Du, Hui Li
Summary: This study explores the effects of different particle sizes of lead smelting slag (LSS) on the compressive strength of cementitious materials. The results show that decreasing the particle size can significantly improve the compressive strength of the materials, especially in the early stage. Analysis of LSS with different particle sizes reveals that decreasing the particle size increases the specific surface areas and decreases the degree of crystallinity. Microscopic analysis of the cementitious materials indicates that decreasing the particle size enhances the degree of reaction and gelation, resulting in a denser structure.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Fanghan Qian, Xinjian Huang, Yanyu Bao
Summary: This study aimed to explain the response of Tamarix ramosissima's phylloplane bacterial community to heavy metals (HM) and the effect on host growth. Results showed that high HM level inhibited dominant bacteria, increased bacterial community diversity and richness, and induced special bacteria to maintain higher productivity of the host plant. The co-occurrence network of phylloplane bacteria showed less stability than that in corresponding soil, but it helped regulate plant growth more rapidly.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Xiaorui Wang, Yonggui Wu, Rong Xie, Kaizhi Yang, Hongyue Wu, Tieyun Wang
Summary: Vegetation reconstruction is widely used at waste slag sites, but toxic elements may be released due to organic acids secreted by plant roots, causing harm to the environment and human health. Toxic substances from zinc smelting waste slag were found to have deleterious effects on zebrafish, affecting enzyme activities, DNA damage, and liver tissue histopathology.
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2021)
Article
Construction & Building Technology
Zhongzhong Zhao, Hui Li, Wenhuan Liu, Yongfeng Wan, Wen Huang
Summary: The hybrid binder method is an effective solution for lead smelting slag disposal and the immobilization of heavy metals. This study investigates the effects of activators on the solidification/stabilization process of lead smelting slag. The results show that hybrid excitation can significantly enhance the compressive strength and reduce the leaching concentration of heavy metals. The mechanisms behind the improved performance of solidification/stabilization solids due to hybrid excitation are discussed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Environmental
Mingyuan Gu, Yiwei Zhong, Lijun Wang, Zhancheng Guo
Summary: In this study, the removal mechanism and kinetics of Zn, Pb, and Sn from lead slag by carbothermic reduction were investigated. The results showed that the volatilization of Zn exhibited consistent kinetics behavior, while the volatilization of Sn and Pb followed a two-staged kinetics model. This was due to the formation of nonvolatile polymetallic sulfides and alloys hindering the internal diffusion of Sn and Pb.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Longgong Xia, Shuheng Cao, Qihou Li, Xingwu Lu, Zhihong Liu
Summary: A sulfidation process using gypsum residue as sulfur resource was proposed to treat copper smelting slag. The process was found to effectively recover valuable elements such as copper and improve the stability of the starting materials.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Green & Sustainable Science & Technology
Zhongtang Zhang, Yuhu Li, Feng He, Huilan Yang
Summary: The thermodynamic analysis of reduction smelting of stainless steel pickling sludge was conducted in this study, showing that controlling thermodynamic conditions can achieve the formation of an alloy rich in Fe-Ni phase.
JOURNAL OF SUSTAINABLE METALLURGY
(2021)
Article
Engineering, Environmental
Chuan Liu, Shuchen Sun, Ganfeng Tu, Faxin Xiao
Summary: A novel technology for co-treatment of spent automotive catalyst (SAC) and cyanide tailing (CT) was proposed in this study, which successfully recovered platinum group metals (PGMs) from SAC through carbon thermal reduction-smelting. The results indicated that over 99% of PGMs can be recovered from the waste materials, and the produced glass slag was non-hazardous. This approach is proven to be an economically and environmentally friendly technology for PGM recovery.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Gorazd Zibret, Barbara Ceplak
Summary: By studying the alluvial and stream sediments in the area of historical zinc smelting tradition, it was found that the abandoned slag and ore roasting residue waste dumps are the main sources of zinc, cadmium, and lead. Contaminated particles are transported by the Voglajna River into the Savinja River, and eventually reach the Sava River more than 30 km downstream, causing anomalies in the sediment levels.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Ekaterina S. Zolotova, Natalya S. Ivanova, Viktor F. Ryabinin, Sezgin Ayan, Alla L. Kotelnikova
Summary: This study evaluated the element mobility from copper smelting slag recycling waste into brown forest soils in the southern taiga district of the Middle Urals, Russia. The research found that the waste lost mass over time in the forest soils, with significant changes in the content of Zn, As, Cd, and Se. The study also revealed differences in the degree of element migration from the technical sand to the brown forest soils of different forest types and clear-cuttings.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Construction & Building Technology
Wenhuan Liu, Renhao Du, Zhongzhong Zhao, Rui Zhang, Yongfeng Wan, Hui Li
Summary: This study explored the utilization of lead smelting slag (LSS) as a resource through the preparation of eco-mine cemented backfill materials (MCBM). The optimal binder composition ratio was found to be 46% LSS, 20% lime ash slag (LAS), 13% slag powder (SP), 17% cement clinker (CC), and 4% bischofite (BF), resulting in compressive strengths of 11.1 MPa, 16.9 MPa, and 24.2 MPa at 3, 7, and 28 days, respectively. Increasing the binder-sand ratio led to improved mechanical properties and denser hydration products. The MCBM also exhibited a solidification ratio above 70% for heavy metals, meeting groundwater standards.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Environmental Sciences
Youfa Luo, Yonggui Wu, Hu Wang, Rongrong Xing, Zhilin Zheng, Jing Qiu, Lian Yang
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Geochemistry & Geophysics
Youfa Luo, Yonggui Wu, Rongrong Xing, Cong Yao, Jie Shu, Zhixue Wu
JOURNAL OF GEOCHEMICAL EXPLORATION
(2018)
Article
Environmental Sciences
Youfa Luo, Yonggui Wu, Jing Qiu, Hu Wang, Lian Yang
JOURNAL OF SOILS AND SEDIMENTS
(2019)
Article
Environmental Sciences
Youfa Luo, Yonggui Wu, Jie Shu, Zhixue Wu
ENVIRONMENTAL POLLUTION
(2019)
Article
Environmental Sciences
Youfa Luo, Xingyu Wu, Hang Sun, Yonggui Wu
Article
Environmental Sciences
Jichang Wen, Yonggui Wu, Xinlong Li, Qian Lu, Youfa Luo, Zhibin Duan, Chunmei Li
Summary: The Lanmuchang mercury-thallium mine in southwestern Guizhou, China, is a typical area heavily contaminated with Tl, Hg, As, and Sb. The weathering of argillaceous sandstone in the area led to the migration and release of heavy metals, with a positive correlation between the concentrations of Tl, Hg, As, and Sb and Fe, Ca, and Mg during leaching. This process resulted in environmental pollution.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Hang Liu, Kaizhi Yang, Lingfeng Luo, Qian Lu, Yonggui Wu, Meiyan Lan, Youfa Luo, Wan Liang
Summary: This study utilized indigenous acidophilic sulfur-oxidizing bacteria for bioleaching to effectively remove heavy metals from local tannery sludge, demonstrating the benefits of pre-oxygenation treatment. The experiment revealed changes in the bound forms of heavy metals and showed that stable heavy metal forms critically influenced the removal efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Youfa Luo, Zhilin Zheng, Pan Wu, Yonggui Wu
Summary: The application of biogas residue slightly increased the concentrations of Zn and Cd in the leachates; however, the establishment of plants could avoid the excessive leaching of heavy metals coming from the biogas residue. Regardless of single or co-planting patterns, the bioavailability of Cu, Zn, and Cd slightly increased, but Pb bioavailability significantly decreased.
Article
Environmental Sciences
Chuanjiang Tan, Youfa Luo, Tianling Fu
Summary: The study found that application of a combined amendment reduced the extractable heavy metal contents in soil, increased pH, soil water content, electrical conductivity, and soil available nutrient contents. Moreover, the application decreased the diversity of soil bacterial and fungal communities, while increasing the relative abundances of dominant bacterial and fungal communities such as Proteobacteria, Bacteroidetes, and Ascomycota; however, the relative abundances of Acidobacteria and Actinobacteria decreased.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Youfa Luo, Chuanjing Tan, Yu He, Yulu Chen, Zuyan Wan, Tianling Fu, Yonggui Wu
Summary: This study investigated the effects of two consecutive seasons of vegetable cultivation on the mobilization of heavy metals (Cu, Pb, Zn, and Cd) immobilized by combined amendments. It was found that the application of combined amendments reduced the bioavailability of heavy metals, while the pH of the soil decreased and the contents of organic acids and heavy metals increased during vegetable cultivation. The shift in bacterial community composition indirectly influenced the mobilization of heavy metals immobilized by the combined amendments.
Article
Engineering, Environmental
Yu He, Youfa Luo, Chaoxiao Wei, Licui Long, Chi Wang, Yonggui Wu
Summary: Organic amendments are important for controlling the release of heavy metals in waste slag, but the role of dissolved organic matter (DOM) derived from organic amendments is still unclear. This study investigated the effect of DOM derived from cow manure on the geochemical behavior of heavy metals and bacterial community dynamics in Hg-Tl mining waste slag. The results showed that DOM significantly affected the pH, EC, and levels of SO42-, Hg, and Tl. It also increased the diversity and richness of the bacterial community. DOM properties influenced the mobilization of heavy metals and the bacterial community changes. Overall, DOM properties increased As mobilization but decreased Hg and Tl mobilization from Hg-Tl mining waste slag.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Environmental Sciences
Youfa Luo, Rongrong Xing, Zuyan Wan, Yulu Chen
Summary: Direct revegetation is an important measure to immobilize heavy metals and improve the microecological properties of metal smelting slag sites. This study investigated the distribution characteristics of nutrients, enzyme activities, microbial properties, and heavy metals in the vertical profile at a zinc smelting slag site directly revegetated with two herb species (Lolium perenne and Trifolium repens) for 5 years. The results showed that the nutrient contents, enzyme activities, and microbial properties decreased with increasing slag depth after revegetation with the two herb species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Youfa Luo, Yulu Chen, Zuyan Wan, Dongran Zhou, Yu He
Summary: This study investigated the composition of dissolved organic matter (DOM) and its interactions with the microbial community in amended and revegetated bauxite residue. Results showed that amendment applications and revegetation increased the accumulation of unsaturated molecules and aromatic compounds, while reducing the average molecular mass of DOM molecules. Significant correlations were found between DOM molecules and the microbial community and Fe/Al oxides. Decomposition of DOM molecules by the microbial community and sequestration onto Fe/Al oxides were the main driving factors that changed DOM chemodiversity. These findings provide insights into the biogeochemical behaviors of DOM and contribute to the development of eco-engineering strategies for soil formation and sustainable revegetation of bauxite residue.
Article
Geochemistry & Geophysics
Youfa Luo, Yonggui Wu, Tianling Fu, Hu Wang, Rongrong Xing, Zhilin Zheng
Article
Soil Science
He Zhang, Aurore Degre, Caroline De Clerck, Shuangshuang Li, Jinshan Lian, Yuanyuan Peng, Tao Sun, Lindan Luo, Yanan Yue, Guihua Li, Jianfeng Zhang
Summary: The continuous expansion of sandy soil poses a threat to crop security. The use of chitin-rich organic material and attapulgite as soil amendments can improve degraded soil by increasing nutrient content and enzyme activity and altering bacterial community structure. This study provides insights into the link between soil properties, bacterial community structure, and microbial carbon metabolism function.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Xian Zhou, Yi Jiang, Ganghua Leng, Wanting Ling, Jian Wang
Summary: Bound Polycyclic Aromatic Hydrocarbons (PAHs) residues have significant impacts on soil pollution remediation. The addition of exogenous functional microbial consortium and glomalin-related soil protein (GRSP) can promote the degradation of bound PAH residues. This study fills the cognitive gap of GRSP in regulating the degradation of bound PAH residues in soil.
APPLIED SOIL ECOLOGY
(2024)
Review
Soil Science
Xinyu Zhao, Evrim Elcin, Lizhi He, Meththika Vithanage, Xiaokai Zhang, Jie Wang, Shuo Wang, Yun Deng, Nabeel Khan Niazi, Sabry M. Shaheen, Hailong Wang, Zhenyu Wang
Summary: The increase of cultivated varieties of Chinese herbal remedies, the expansion of cultivation area, and long-term monoculture cropping have led to aggravated problems of soil diseases, yield loss, and quality reduction. Biochar, as a carbon-rich material, has the potential to improve soil quality and alleviate continuous crop obstacles for Chinese herbal remedies.
APPLIED SOIL ECOLOGY
(2024)
Editorial Material
Soil Science
Melanie M. Pollierer, Anton Potapov, Andrey Zaitsev
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Yajie Wang, Jiefeng Li, Yongfen Wei, Zhiyi Deng, Xiaodi Hao, Fusheng Li
Summary: This study investigates the impacts of heavy metal pollution caused by coal production on soil microbial ecology in the semi-arid region of Heilongjiang. The results reveal negative correlations between heavy metals and bacterial abundance and diversity. Twelve sensitive bacterial taxa and corresponding models were identified. Water content and total phosphorus were also found to play vital roles in regulating the bacterial community in the soil.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Sujit Das, Sunanda Biswas, B. Ramakrishnan, T. K. Das, T. J. Purakayastha, B. H. Gawade, Priya Singh, Partha Sarathi Ghorai, Saloni Tripathy, Kanchan Sinha
Summary: This study assessed the impact of conservation agriculture on the biological soil health index in a rice-wheat system in the Indo-Gangetic Plains. The results showed that zero till direct seeded rice and crop residue incorporation could improve soil organic carbon, enzyme activities, and microbial population. Specifically, the inclusion of mungbean residues and sesbania brown manuring significantly increased the abundance of the nifH gene in the soil.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Xingxiu Huang, Genxing Pan, Lianqing Li, Xuhui Zhang, Hailong Wang, Nanthi Bolan, Bhupinder Pal Singh, Chongjian Ma, Fuwei Liang, Yanjie Chen, Huashou Li
Summary: The study evaluated the effects of using a mixture of biomass waste ash and biochar on soil pH, heavy metal remediation, and plant growth. The results showed that the mixed use could ameliorate soil acidification, reduce absorption of cadmium and lead by plants, and promote plant growth. The special fertilizer prepared from the mixture can be used to promote crop growth and reduce environmental pollution.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Astrid C. H. Jaeger, Martin Hartmann, Rafaela Feola Conz, Johan Six, Emily F. Solly
Summary: This study investigates the effects of tree mortality on soil microbial communities using a mesocosm experiment. The results show that tree death influenced soil microbial abundance and composition, with the potential to affect soil processes in forest ecosystems.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Dane C. Elmquist, Subodh Adhikari, Ina Popova, Sanford D. Eigenbrode
Summary: This study investigated the effects of soil arthropod communities from cereal-based agroecosystems on wheat plant growth and above-belowground interactions. The results showed that wheat grown in soils with arthropod communities had better growth and defense against aphids, compared to wheat grown in soils without arthropod communities.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Lei Wang, Jing Wang, Zhonghou Tang, Jidong Wang, Yongchun Zhang
Summary: This study found that the application of organic fertilizer enhances carbon and phosphorus cycling enzyme activities in soil, reshapes the soil microbial community structure, and regulates the interactions between these crucial indicators through soil organic carbon.
APPLIED SOIL ECOLOGY
(2024)
Review
Soil Science
M. Pawlett, N. T. Girkin, L. Deeks, D. L. Evans, R. Sakrabani, P. Masters, K. Garnett, N. Marquez-Grant
Summary: The modern funeral industry faces environmental risks and challenges, and natural burial offers a more sustainable alternative. However, there is a lack of research comparing the risks and benefits of natural burial practices, including groundwater contamination and atmospheric emissions. More scientific research is needed to understand and regulate funeral options, as well as cultural incentives for natural burial.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Zhongcheng Wang, Jin Zhao, Dan Xiao, Meifeng Chen, Xunyang He
Summary: Root AMF colonization, diversity, and interactions vary with soil depth. Higher soil nutrient levels and root biomass promote colonization but suppress diversity and interactions in the upper soil layer compared to deeper layers.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Zhiyang Zhang, Shiting Zhang, Riikka Rinnan
Summary: This study revealed the mechanisms behind the effects of dung deposition on soil heterotrophic respiration, providing insights for grassland management and carbon feedback prediction in grazed ecosystems.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Ismail Ibrahim Garba, Graham R. Stirling, A. Marcelle Stirling, Alwyn Williams
Summary: Integrating diverse cover crops into dryland crop-fallow rotations can enhance soil nutrient and water retention, suppress soil-borne pests, and improve soil health. The effects on soil nematode communities are modulated by the functional type and mixture composition of the cover crops. Selecting cover crops with appropriate traits can improve soil health through suppression of plant-parasitic nematodes, promotion of free-living nematodes, and enhancement of soil food web complexity.
APPLIED SOIL ECOLOGY
(2024)
Article
Soil Science
Min Li, Chao He, Miao Wei, Junmeng Long, Jingru Wang, Xinrong Yang, Kehan Wang, Xueli He
Summary: In extreme desert environments, black septate endophytes (DSE) can benefit the relict plant Gymnocarpos przewalskii by assisting it to survive and maintain ecosystem stability. The colonization of DSE in the roots of G. przewalskii varies significantly with seasons and sites, with soil properties being a major factor affecting the composition of DSE. Additionally, the functional metabolite composition of DSE strains varies greatly with different drought levels and isolates, indicating the potential complementarity between different strains in helping hosts cope with drought stress.
APPLIED SOIL ECOLOGY
(2024)