Article
Environmental Sciences
Yale Wang, Yingming Xu, Xuefeng Liang, Yuebing Sun, Qingqing Huang, Xu Qin, Lijie Zhao
Summary: The study found that adding mercaptopalygorskite (MPAL) in alkaline soils significantly reduced Cd uptake by wheat roots and Cd concentration in wheat grains, helping to decrease Cd concentration in soil to meet national standards.
Article
Environmental Sciences
Yu Zhang, Yanli Li, Yingming Xu, Qingqing Huang, Guohong Sun, Xu Qin, Lin Wang
Summary: This study found through field experiments that Mercapto-palygorskite (MP) can significantly reduce the content of cadmium (Cd) in soils by increasing the organic matter, soluble iron, manganese, and sulfur content in soil aggregates, thus reducing the levels of exchangeable and Fe/Mn oxide-bound Cd in the soil.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yale Wang, Yingming Xu, Qingqing Huang, Xuefeng Liang, Yuebing Sun, Xu Qin, Lijie Zhao
Summary: The study investigated the immobilization effects of a novel amendment MPAL in Cd-contaminated alkaline soils through soil sterilization experiments. Results showed that the immobilization of MPAL on Cd in sterilized soil was significantly better than in natural soil, possibly due to changes in the microbial community and function. The application of MPAL in alkaline soil was stable and effective, unaffected by soil sterilization and reduction in soil microorganisms.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Qingqing Huang, Xuerong Di, Zhijun Liu, Lijie Zhao, Xuefeng Liang, Sun Yuebing, Xu Qin, Yingming Xu
Summary: This study evaluated the immobilization efficiency of mercapto-palygorskite (MPAL) as a soil amendment for Cd-contaminated alkaline soil in field experiments. The results showed that MPAL significantly reduced the Cd concentration in wheat grains, with Cd concentration falling below the limit value defined in China's food safety standards. The mechanisms involved enhanced Cd sorption onto Fe oxides and the removal of amorphous or free Fe oxides from the soil, as well as the antagonistic effect between Mn and Cd uptake.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Yulong Li, Chao Gao, Sashuang Rong, Jialin Gu, Huiwei Zhao, Shiming Su, Wei Liu
Summary: The combination of Mercapto-functionalized palygorskite and zinc fertilizer effectively reduces Cd uptake in plants and restores soil microbial activity, providing a safe and efficient method for remediation of Cd-contaminated farmlands.
LAND DEGRADATION & DEVELOPMENT
(2022)
Article
Environmental Sciences
Yale Wang, Yingming Xu, Guohong Sun, Xuefeng Liang, Yuebing Sun, Lin Wang, Qingqing Huang
Summary: Phytoextraction and in situ immobilisation are commonly used remediation techniques for Cd-contaminated farmland, but their effects on subsequent wheat Cd accumulation are uncertain. In this study, EDDS-assisted T. patula extraction increased Cd content in soil solution, while MPAL immobilisation significantly decreased available Cd content in soil. The combination of MPAL application with low-Cd accumulation wheat cultivar may be a suitable proposal for safe wheat production in Cd-contaminated soil.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Engineering, Environmental
Kunyan Qiu, Linlin Zhao, Yongsheng An, Xiaohong Li, Zhijun Zhang
Summary: A mercapto iron complex functionalized nanosilica (RNS-SF) was prepared to improve the stability and immobilization efficiencies in Pb/Cd-contaminated soil. The results showed that RNS-SF had a stable immobilization efficiency for Pb and Cd, reducing environmental risks effectively.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Yingying Yong, Yingming Xu, Qingqing Huang, Yuebing Sun, Lin Wang, Xuefeng Liang, Xu Qin, Lijie Zhao
Summary: Cadmium pollution in alkaline soil in some areas of northern China seriously threatens agricultural production and human health. There is a lack of materials and methods for remediating cadmium pollution in alkaline soil, so it is necessary to further study economic and adaptive remediation and regulation techniques for cadmium pollution in alkaline soil.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yale Wang, Yingming Xu, Liping Li, Yongqiang Yang, Chunhong Xu, Yichao Luo, Yali Wang, Xuefeng Liang, Jingjie Sun
Summary: The effect of adding mercapto-palygorskite (MEP) on the immobilization of Cd in different soil aggregates of various particle sizes was investigated. The results showed that adding 0.05-0.2% MEP significantly reduced the available Cd content in calcareous soil. MEP had the best immobilization effect in micro-aggregates. This study provides guidance for the remediation of Cd-contaminated calcareous and acidic soils.
Article
Environmental Sciences
Bin Wu, Jia Li, Hongjie Kuang, Yuxian Shangguan, Jianbing Chen
Summary: This study investigated the effects of mercapto-based palygorskite on restraining the uptake of Cd and Pb by Salvia miltiorrhiza and its impact on soil micro-ecology. The results showed that the use of MPAL enhanced the biomass and antioxidant enzyme activities of S. miltiorrhiza, while significantly decreasing the Cd and Pb contents in the roots. Furthermore, the application of MPAL improved the bacterial community composition and decreased the bioavailability of Cd and Pb.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Lulu Long, Na Huang, Xin Liu, Li Gong, Min Xu, Shirong Zhang, Chao Chen, Jun Wu, Gang Yang
Summary: In this study, an economical and environmentally friendly amorphous iron silicate (AIS) was prepared and found to have better remediation efficiency on Cd-contaminated soil compared to natural silicates. Plant experiments showed that AIS could effectively inhibit the absorption and accumulation of Cd2+ in garlic, reducing the potential ecological risk assessment of soil. The immobilization mechanism of Cd2+ by AIS includes electrostatic adsorption, co-precipitation, ion exchange, and complexation of surface functional groups.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Yan Ma, Lina Wang, Yunzhe Cao, Tian Liang, Panpan Wang, Huilong Luo, JingJing Yu, Dading Zhang, Baoshan Xing, Bin Yang
Summary: In recent years, China has relocated enterprises and industries associated with intense pollution, which has resulted in abandoned polluted sites. The study reveals that among the surveyed soil stabilization projects, 29% are chemical industry sites and 96.7% of these sites are heavily polluted with heavy metals and metalloids. Landfilling is the primary strategy for soil disposal following stabilization, and the reuse of treated soils is preferred to landfill waste treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Dongdong Wen, Xiaopin Guo, Rongbing Fu
Summary: This study comprehensively investigates the inhibition characteristics of the electrokinetic removal (EKR) of inorganic pollutants from soil due to the evolution of the acidic and alkaline fronts (EAAF). The effects and control mechanisms of EAAF on the transport of target species are systematically examined, providing insights into improving the removal efficiency of target contaminants.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Review
Green & Sustainable Science & Technology
Subhash Chandra, Isha Medha, Ashwani Kumar Tiwari
Summary: Land degradation and the release of contaminants from mining activities are global concerns. Biochar and its composites have shown potential for remediation of heavy metal-contaminated mine soil. However, there is a lack of research focusing on this specific application. This review critically evaluates the impact of mining on the environment, discusses the production and modification of biochar, and examines its effectiveness in removing heavy metals.
Article
Environmental Sciences
Yazhou Wang, Renhao Tan, Li Zhou, Jie Lian, Xudong Wu, Rong He, Fan Yang, Xinsheng He, Wenkun Zhu
Summary: This study found that using Morchella mycelium to remediate lead-contaminated soil is more efficient than using hyperaccumulating plants. Mycelium can reduce lead content in plants and increase dry biomass, enhance enzyme activities in soil, and reduce the bioavailability of lead. Additionally, mycelium immobilizes lead by forming salt crystals through extracellular secretions, effectively fixing lead in the soil.
ENVIRONMENTAL POLLUTION
(2021)