1
|
Ma Y, Li C, Yan J, Yu H, Kan H, Yu W, Zhou X, Meng Q, Dong P. Application and mechanism of carbonate material in the treatment of heavy metal pollution: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:36551-36576. [PMID: 38755474 DOI: 10.1007/s11356-024-33225-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 04/02/2024] [Indexed: 05/18/2024]
Abstract
Among the many heavy metal pollution treatment agents, carbonate materials show strong flexibility and versatility by virtue of their high adsorption capacity for heavy metals and the characteristics of multiple and simple modification methods. It shows good potential for development. This review summarizes the application of carbonate materials in the treatment of heavy metal pollution according to the research of other scholars. It mainly relates to the application of surface-modified, activated, and nano-sized carbonate materials in the treatment of heavy metal pollution in water. Natural carbonate minerals and composite carbonate minerals solidify and stabilize heavy metals in soil. Solidification of heavy metals in hazardous waste solids is by MICP. There are four aspects of calcium carbonate oligomers curing heavy metals in fly ash from waste incineration. The mechanism of treating heavy metals by carbonate in different media was discussed. However, in the complex environment where multiple types of pollutants coexist, questions on how to maintain the efficient processing capacity of carbonate materials and how to use MICP to integrate heavy metal fixation and seepage prevention in solid waste base under complex and changeable natural environment deserve our further consideration. In addition, the use of carbonate materials for the purification of trace radioactive wastewater and the safe treatment of trace radioactive solid waste are also worthy of further exploration.
Collapse
Affiliation(s)
- Yaoqiang Ma
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - ChenChen Li
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Jin Yan
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Hanjing Yu
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Huiying Kan
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Wanquan Yu
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Xinyu Zhou
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Qi Meng
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Peng Dong
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| |
Collapse
|
2
|
Lou F, Fu T, He G, Tian W, Wen J, Yang M, Wei X, He Y, He T. Different composites inhibit Cd accumulation in grains under the rice-oilseed rape rotation mode of karst area: A field study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114884. [PMID: 37054472 DOI: 10.1016/j.ecoenv.2023.114884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/02/2023] [Accepted: 04/05/2023] [Indexed: 06/19/2023]
Abstract
Ensuring the safe production of food and oil crops in soils with elevated cadmium (Cd) content in karst regions is crucial. We tested a field experiment to examine the long-term remediation effects of compound microorganisms (CM), strong anion exchange adsorbent (SAX), processed oyster shell (POS), and composite humic acids (CHA) on Cd contamination in paddy fields under a rice-oilseed rape rotation system. In comparison to the control group (CK), the application of amendments significantly increased soil pH, cation exchange capacity (CEC), and soil organic matter (SOM) content while markedly decreasing the content of available Cd (ACd). During the rice cultivation season, Cd was predominantly concentrated in the roots. Relative to the control (CK), the Cd content in each organ was significantly reduced. The Cd content in brown rice decreased by 19.18-85.45%. The Cd content in brown rice following different treatments exhibited the order of CM > POS > CHA > SAX, which was lower than the Chinese Food Safety Standard (GB 2762-2017) (0.20 mg/kg). Intriguingly, during the oilseed rape cultivation season, we discovered that oilseed rape possesses potential phytoremediation capabilities, with Cd mainly accumulating in roots and stems. Notably, CHA treatment alone significantly decreased the Cd content in oilseed rape grains to 0.156 mg/kg. CHA treatment also maintained soil pH and SOM content, consistently reduced soil ACd content, and stabilized Cd content in RSF within the rice-oilseed rape rotation system. Importantly, CHA treatment not only enhances crop production but also has a low total cost (1255.230 US$/hm2). Our research demonstrated that CHA provides a consistent and stable remediation effect on Cd-contaminated rice fields within the crop rotation system, as evidenced by the analysis of Cd reduction efficiency, crop yield, soil environmental change, and total cost. These findings offer valuable guidance for sustainable soil utilization and safe production of grain and oil crops in the context of high Cd concentrations in karst mountainous regions.
Collapse
Affiliation(s)
- Fei Lou
- College of Agriculture, Guizhou University, Guiyang 550025, PR China.
| | - Tianling Fu
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guizhou University, Guiyang 550025, PR China; Institute of New Rural Development, Guizhou University, Guiyang 550025, PR China; College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
| | - Guandi He
- College of Agriculture, Guizhou University, Guiyang 550025, PR China.
| | - Weijun Tian
- Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China
| | - Jichang Wen
- Institute of New Rural Development, Guizhou University, Guiyang 550025, PR China; College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
| | - Mingfang Yang
- College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Xiaoliao Wei
- College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Yeqing He
- College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Tengbing He
- College of Agriculture, Guizhou University, Guiyang 550025, PR China; Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guizhou University, Guiyang 550025, PR China; Institute of New Rural Development, Guizhou University, Guiyang 550025, PR China.
| |
Collapse
|
3
|
Yang Y, Hu X, Wang H, Zhong X, Chen K, Huang B, Qian C. Corncob biochar combined with Bacillus subtilis to reduce Cd availability in low Cd-contaminated soil. RSC Adv 2022; 12:30253-30261. [PMID: 36337951 PMCID: PMC9590244 DOI: 10.1039/d2ra04643a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/10/2022] [Indexed: 11/20/2022] Open
Abstract
Soil contamination by heavy metals such as Cd can pose a risk to the environment and human health. However, Cd is difficult to immobilize at low concentration levels in soil. Individually, Bacillus subtilis and biochar have been shown to be inefficient at immobilizing Cd in soil. In this study, corncob biochar was generated at different pyrolysis temperatures (300 °C-550 °C), and the Cd immobilization efficiency and performance of corncob biochar loaded with B. subtilis (CB@B) and corncob biochar alone (CB) were evaluated in solutions and in soil. The characterization (SEM and FTIR) of CB generated at different pyrolysis temperatures and CB generated at different pyrolysis temperatures in CB@B (300 °C-550 °C) indicated that a superior pore structure and abundant O-functional groups were obtained at a pyrolysis temperature of 400 °C for both CB@B and CB. The X-ray diffraction and X-ray photoelectron spectroscopy results indicate that the formation of Cd compounds was associated with the positive combined biosorption effect of the bacteria and biochar, electronic adsorption, activity of the O-functional groups (C[double bond, length as m-dash]O, COOH, OH, and Si-O-Si), and complexation between extracellular substances and Cd2+. Adsorption experiments were conducted in a solution to assess the effects of various operating parameters such as the time, pH, and adsorbent dose. The 400 °C-CB@B and 400 °C-CB samples achieved the largest reductions in the Cd concentration at 81.21% and 5.70%, respectively. Then, CaCl2 extraction experiments were conducted in soil, and using 0.25%-CB@B, a 55.21% decrease was realized in the Cd concentration after 56 days and a 16.71% increase was realized in soil pH to 8.38. No significant difference was observed in the CB-treated groups, among which 1.0%-CB achieved the largest reduction of 26.08% after 56 days and a 3.20% increase in the soil pH to 7.41. The Tessier sequential extraction method obtained similar trends. Overall, 400 °C-CB@B demonstrated outstanding immobilization efficiency and durability, indicating that it provided a safe and nutrient-rich habitat for B. subtilis to realize a synergistic effect for Cd immobilization.
Collapse
Affiliation(s)
- Yilin Yang
- School of Chemical and Environmental Engineering, Shanghai Institute of TechnologyShanghai 201418China
| | - Xiaojun Hu
- School of Chemical and Environmental Engineering, Shanghai Institute of TechnologyShanghai 201418China
| | - Huifeng Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of TechnologyShanghai 201418China
| | - Xinling Zhong
- School of Chemical and Environmental Engineering, Shanghai Institute of TechnologyShanghai 201418China
| | - Kaishan Chen
- School of Chemical and Environmental Engineering, Shanghai Institute of TechnologyShanghai 201418China
| | - Biao Huang
- Institute of Soil Science, Chinese Academy of SciencesNanjingJiangsu210008China
| | - Chunxiang Qian
- School of Materials Science and Engineering, Southeast UniversityNanjingJiangsu211189China
| |
Collapse
|
4
|
Xu Z, Zhu Z, Zhao Y, Huang Z, Fei J, Han Y, Wang M, Yu P, Peng J, Huang Y, Fahmy AE. Foliar uptake, accumulation, and distribution of cadmium in rice (Oryza sativa L.) at different stages in wet deposition conditions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 306:119390. [PMID: 35513197 DOI: 10.1016/j.envpol.2022.119390] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/24/2022] [Accepted: 04/29/2022] [Indexed: 06/14/2023]
Abstract
Atmospheric deposition of cadmium (Cd) in rice (Oryza sativa L.) has become a major global concern. Foliar uptake allows vegetables to accumulate heavy metals from the atmosphere, but this has rarely been studied in rice. Therefore, this study investigated the Cd accumulation in rice growing at different exposure periods (the tillering, booting, heading, and maturity stages) under a wet deposition of CdCl2·2.5H2O solution through pot experiments. The Cd concentrations in leaves, roots, husk, brown rice, and leaf structures were analyzed to explore foliar uptake, accumulation, and distribution of Cd in rice tissues at different growth stages. The results showed that wet deposited Cd can be absorbed on the rice leaf surface and remains on the leaves for a long time. The sequence of Cd accumulation in rice tissues was: leaves > brown rice > husk > roots, with leaves accounting for greater than 71.78% of the total accumulation. The accumulation of wet deposited Cd in leaves, husk, and brown rice had large temporal variations between the four typical stages. There was no significant variations in Cd content in roots between different growth stages. Correspondingly, the foliar uptake of Cd was rarely transported from the leaves via the phloem to roots. Conversely, the foliar uptake of Cd was transported upwards to grains. The accumulation of Cd fluctuated with each growth stage, initially increasing and then decreasing at the heading stage and finally reaching a peak at the maturity stage. The highest total accumulation of Cd in both the high and low wet deposition conditions occurred at maturity, resulting in 15.53 and 11.23 μg plant-1, respectively. These results provide theoretical support for further research into identifying efficient foliar control measures to reduce Cd accumulation and maintain food safety.
Collapse
Affiliation(s)
- Zhangqian Xu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Zhen Zhu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Yuhua Zhao
- Ningyuan County Agricultural Comprehensive Service Center, Hunan, 425600, China
| | - Zhi Huang
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Jiangchi Fei
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Yongliang Han
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Maodi Wang
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Pengyue Yu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Jianwei Peng
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China
| | - Ying Huang
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Hunan Agricultural University, Hunan, 410128, China; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Beijing, 100081, PR China.
| | - Ahmed E Fahmy
- Egyptian Atomic Energy Authority, Nuclear Research Centre, Soil & Water Research Department, Abou-Zaabl, 13759, Egypt
| |
Collapse
|
5
|
Kang X, Geng N, Li X, Yu J, Wang H, Pan H, Yang Q, Zhuge Y, Lou Y. Biochar Alleviates Phytotoxicity by Minimizing Bioavailability and Oxidative Stress in Foxtail Millet ( Setaria italica L.) Cultivated in Cd- and Zn-Contaminated Soil. FRONTIERS IN PLANT SCIENCE 2022; 13:782963. [PMID: 35401634 PMCID: PMC8993223 DOI: 10.3389/fpls.2022.782963] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Soil contamination with multiple heavy metals is a global environmental issue that poses a serious threat to public health and ecological safety. Biochar passivation is an efficient and economical technology to prevent heavy metal contamination of Cd; however, its effects on compound-contaminated and weakly alkaline soil remain unclear. Further, the mechanisms mediating the immobilization effects of biochar have not been evaluated. In this study, three biochar treated at different pyrolytic temperatures [300°C (BC300), 400°C (BC400), and 500°C (BC500)] were applied to Cd-/Zn-contaminated soils, and their effects on plant growth, photosynthetic characteristics, Cd/Zn accumulation and distribution in foxtail millet were evaluated. Further, the effect of biochar application on the soil physicochemical characteristics, as well as the diversity and composition of the soil microbiota were investigated. Biochar significantly alleviated the phytotoxicity of Cd and Zn. DTPA (diethylenetriamine pentaacetic acid)-Cd and DTPA-Zn content was significantly reduced following biochar treatment via the transformation of exchangeable components to stable forms. BC500 had a lower DTPA-Cd content than BC300 and BC400 by 42.87% and 39.29%, respectively. The BC500 passivation ratio of Cd was significantly higher than that of Zn. Biochar application also promoted the growth of foxtail millet, alleviated oxidative stress, and reduced heavy metal bioaccumulation in shoots, and transport of Cd from the roots to the shoots in the foxtail millet. The plant height, stem diameter, biomass, and photosynthetic rates of the foxtail millet were the highest in BC500, whereas the Cd and Zn content in each organ and malondialdehyde and hydrogen peroxide content in the leaves were the lowest. Moreover, biochar application significantly increased the abundance of soil bacteria and fungi, as well as increasing the fungal species richness compared to no-biochar treatment. Overall, biochar was an effective agent for the remediation of heavy metal-contaminated soil. The passivation effect of biochar exerted on heavy metals in soil was affected by the biochar pyrolysis temperature, with BC500 showing the best passivation effect.
Collapse
|
6
|
Ali A, Li M, Su J, Li Y, Wang Z, Bai Y, Ali EF, Shaheen SM. Brevundimonas diminuta isolated from mines polluted soil immobilized cadmium (Cd 2+) and zinc (Zn 2+) through calcium carbonate precipitation: Microscopic and spectroscopic investigations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:152668. [PMID: 34963589 DOI: 10.1016/j.scitotenv.2021.152668] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/19/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
The toxic metal(loid)s TMs resistant bacterium Brevundimonas diminuta was isolated for the first time from mines polluted soil in Fengxian, China, and assessed for its potential for Cd and Zn precipitation in Cd and Zn co-contaminated aqueous solution at various Cd and Zn levels (20, 40, 80, 160, and 200 mg L-1), pH values (5, 6, 7, 8, and 9), and temperatures (20, 25, 30, and 35 °C). B. diminuta showed a high resistance to both Cd and Zn and was able to precipitate up to 99.2 and 99.7% of dissolved Cd and Zn respectively, at a pH of 7 and temperature of 30 °C. B. diminuta reduced the dissolved concentrations of Cd and Zn below the threshold levels in water. The 3D-EEM analysis revealed the presence of extracellular polymeric substances (EPS) such as tryptophan indicating bacterial growth under Cd/Zn stress. FTIR showed polysaccharides, CO32-, CaCO3, PO43-, and proteins, which may enhance bacterial growth and metal precipitation. SEM-EDS confirmed the leaf-like and granular shape of the biological precipitation and reduction in the percent weight of TMs, which promoted the adhesion/adsorption of Cd2+, Zn2+, and Ca2+. Moreover, XRD analysis confirmed the precipitation of Cd, Zn, and Ca in the form of CdCO3/Cd3(PO4)2, ZnCO3/ZnHPO4/Zn2(OH)PO4/Zn3(PO4)2, and CaCO3/Ca5(PO3)4OH, respectively. These findings indicate that Brevundimonas diminuta can be used for the bioremediation of TMs-contaminated aquatic environments.
Collapse
Affiliation(s)
- Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Min Li
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Junfeng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Yifei Li
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Yihan Bai
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Esmat F Ali
- Department of Biology, College of Science, Taif University, 11099, Taif 21944, Saudi Arabia
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589 Jeddah, Saudi Arabia; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516 Kafr El-Sheikh, Egypt
| |
Collapse
|
7
|
Li Y, Ali A, Jeyasundar PGSA, Azeem M, Tabassum A, Guo D, Li R, Mian IA, Zhang Z. Bacillus subtilis and saponin shifted the availability of heavy metals, health indicators of smelter contaminated soil, and the physiological indicators of Symphytum officinale. CHEMOSPHERE 2021; 285:131454. [PMID: 34271464 DOI: 10.1016/j.chemosphere.2021.131454] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 06/10/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
Bacillus subtilis and saponin were tested for the uptake of heavy metals (HMs) by Symphytum officinale grown in a smelter-contaminated soil in completely randomized design. Soil pH and electrical conductivity increased by 0.11 unit (T3) and 754 mS cm-1 (T2), respectively. The bioavailable Zn decreased by 5.80% (T2); Cd and Pb increased by 6.21% (T2) and 13.46% (T3), respectively. Soil urease increased by 24% (T3) and alkaline phosphatase, β-glucosidase, and dehydrogenase decreased by 20% (T2), 27.70% (T2), and 21% (T1), respectively. Soil amendments altered the microbial diversity. Fourier-transform infrared spectroscopy and X-ray diffraction reported no obvious changes, except saponin application, which led to possible release of HMs in soil. The fresh weight of Symphytum officinale increased by 21.3 and 5.50% in T2 and T3, respectively. Chlorophyll (a) and carotenoid decreased by the sole application of B. subtilis and saponin and vice-versa for chlorophyll (b). Mono-application of B. subtilis efficiently increased the peroxidase (POD: 27%) and polyphenol oxidase (PPO: 13.56%), whereas, co-application enhanced the phenylalanine ammonia-lyase (PAL: 6.50%) level in shoots. Zn concentration in the shoots and roots declined by 12.75 and 27.32% in T1, respectively. Cd increased (3.92%, T3) in shoots and decreased (39.25%, T1) in roots; Pb concentration remained below detection in shoots and increased by 40% (T3) in roots due to accumulation in dead cells and cell vacuoles. Overall, B. subtilis and saponin influenced the bioavailability of HMs, enzymatic activities, and bacterial abundance in the soil; plant growth indicators, antioxidants activities, and metal uptake in shoots and roots.
Collapse
Affiliation(s)
- Yiman Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Amjad Ali
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; School of Environmental and Municipal Engineering, Xian University of Architecture and Technology, Xian, 715000, China.
| | | | - Muhammad Azeem
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Anum Tabassum
- Department of Microbiology, Women University, Mardan, 23200, Pakistan
| | - Di Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Ronghua Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Ishaq Ahmad Mian
- Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar, 2500, Pakistan
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
| |
Collapse
|
8
|
Mi Y, Cheng M, Yu Q, Si Y. Foliar application of anthocyanin extract regulates cadmium accumulation and distribution in rice (Oryza sativa L.) at tillering and booting stages. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 224:112647. [PMID: 34411814 DOI: 10.1016/j.ecoenv.2021.112647] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Anthocyanin extract has been applied in agricultural production and enhanced tolerance of plants to adverse effects of Cd stress. Rice was subjected to different concentration of Cd and blueberry anthocyanin, and the effects on rice growth, antioxidative defense, Cd distribution in rice tissues, FTIR and TEM characterization of rice leaves were examined to explain the Cd reductions in rice grains and the protective mechanisms by blueberry anthocyanin. Foliar spray of blueberry anthocyanin at tillering and booting stages was effective for reducing Cd concentration in rice grains and increasing the rice yield, anthocyanin and Cd concentration of rice leaves under 1.0 and 10.0 mg/kg Cd stress. The Cd concentration in rice grains was less than the China national standard of Cd for rice grains (0.2 mg/kg) after surface spraying by 5.0-12.5 g/L blueberry anthocyanin under 1.0 mg/kg Cd stress, while 7.5 g/L spray concentration was the best choice. Blueberry anthocyanin spraying prevents Cd from being transferred from leaves to rice grains mainly by fixation of Cd in soluble and organelle fractions at the tillering and booting stages, and reduces H2O2 and MDA accumulation in rice leaves to decrease Cd toxicity. Combined with FTIR and TEM characterization of rice leaves, the results indicated that surface spraying of 7.5 g/L blueberry anthocyanin under 1.0 mg/kg Cd stress could effectively relieve Cd oxidative damage, and form chelates with Cd ions to immobilize Cd in rice leaves. Hence, blueberry anthocyanin could be used as a foliar resistance control agent to reduce Cd accumulation in rice grains through chelate compound synthesis and decrease Cd toxicity by preventing membrane lipid peroxidation and H2O2 accumulation.
Collapse
Affiliation(s)
- Yazhu Mi
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Meiling Cheng
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Qinqin Yu
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Youbin Si
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| |
Collapse
|
9
|
Li X, Li X, Li Y, Dai X, Zhang Q, Zhang M, Zhang Z, Tao Y, Chen W, Zhang M, Zhou X, Yang S, Ma Y, Zhran M, Zou X. Improved immobilization of soil cadmium by regulating soil characteristics and microbial community through reductive soil disinfestation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146222. [PMID: 33714838 DOI: 10.1016/j.scitotenv.2021.146222] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) contamination arising from industrialization has attracted increasing attention in recent years. Reductive soil disinfestation (RSD) as an effective agricultural practice has been widely applied for soil sterilization. However, there is little research regarding RSD affecting Cd immobilization. Here, five treatments, namely untreated soil (CK), flooding-treated soil (FL), RSD with 2% ethyl alcohol (EA), 2% sugarcane bagasse (SB), and 2% bean dregs (BD) were designed to detect their performance for Cd immobilization in contaminated soils, and the change of soil properties and microbial communities were monitored. The results revealed that pH significantly increased in FL and RSD-treated soils, but was negatively correlated with the exchangeable fraction of Cd (EX-Cd), while Oxidation-Reduction Potential (Eh) significantly decreased in FL and RSD-treated soils, and was positively correlated with EX-Cd. BD treatment might contribute to the increase of CaCO3 as shown by X-Ray Diffractomer analysis and strongly decreased the EX-Cd in the soil, but increased the relative abundances of Firmicutes, Planctomycetes, Acidobacteria, and Gemmatimonadetes, which may promote Fe (III) reduction or induce resistance to Cd. Bacterial communities at the phylum and genus levels were closely related to Cd fraction. The FL and RSD treatments moderately altered bacterial specific functions, including iron respiration, which may contribute to remediation of Cd-polluted soil by Fe (III) reduction. Field experiments were conducted to confirm that BD treatment resulted in a significant increase in pH whereas the content of total available Cd was reduced in soils. Compared to the control, concentration of total available Cd of red amaranth, sweet potato, towel gourd, and cowpeas were reduced by approximately 46%, 74%, 72%, and 76% in a BD-treated field, respectively. Our study highlights the potential of RSD as an effective method for Cd immobilization in contaminated soils by improving soil characteristics and altering the composition of the microbial community.
Collapse
Affiliation(s)
- Xin Li
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Xuefeng Li
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Yueyue Li
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Xiongze Dai
- Hunan Agricultural University, Changsha 410000, China
| | - Qingzhuang Zhang
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Mi Zhang
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Zhuqing Zhang
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Yu Tao
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Wenchao Chen
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Mingxing Zhang
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Xiangyu Zhou
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Sha Yang
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China
| | - Yanqing Ma
- Department of Agriculture and Rural Affairs of Hunan Province, Changsha 410000, China
| | - Mostafa Zhran
- Soil and Water Research Department, Nuclear Research Center, Atomic Energy Authority, Abou-Zaabl 13759, Egypt
| | - Xuexiao Zou
- Institute of Vegetable Research, Hunan Academy of Agricultural Science, Changsha 410000, China; Hunan Agricultural University, Changsha 410000, China.
| |
Collapse
|
10
|
Song N, Hursthouse A, McLellan I, Wang Z. Treatment of environmental contamination using sepiolite: current approaches and future potential. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:2679-2697. [PMID: 32918158 PMCID: PMC8275560 DOI: 10.1007/s10653-020-00705-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 08/25/2020] [Indexed: 06/01/2023]
Abstract
To evaluate the potential of sepiolite-based materials to resolve environmental pollution problems, a study is needed which looks at the whole life cycle of material application, including the residual value of material classified as waste from the exploitation of sepiolite deposits in the region or from its processing and purification. This would also maximize value from the exploitation process and provide new potential for local waste management. We review the geographical distribution of sepiolite, its application in the treatment of potentially toxic elements in soil and across the wider landscape, an assessment of modification and compositional variation of sepiolite-based applications within site remediation and wastewater treatment. The potential of sepiolite-based technologies is widespread and a number of processes utilize sepiolite-derived materials. Along with its intrinsic characteristics, both the long-term durability and the cost-effectiveness of the application need to be considered, making it possible to design ready-to-use products with good market acceptance. From a critical analysis of the literature, the most frequently associated terms associated with sepiolite powder are the use of lime and bentonite, while fly ash ranked in the top ten of the most frequently used material with sepiolite. These add improved performance for the inclusion as a soil or wastewater treatment options, alone or applied in combination with other treatment methods. This approach needs an integrated assessment to establish economic viability and environmental performance. Applications are not commonly evaluated from a cost-benefit perspective, in particular in relation to case studies within geographical regions hosting primary sepiolite deposits and wastes that have the potential for beneficial reuse.
Collapse
Affiliation(s)
- Na Song
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK.
| | - Andrew Hursthouse
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
- Hunan Provincial Key Laboratory of Shale Gas Resource Utilization, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Iain McLellan
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - Zhenghua Wang
- Hunan Provincial Key Laboratory of Shale Gas Resource Utilization, Hunan University of Science and Technology, Xiangtan, 411201, China
| |
Collapse
|
11
|
Luo H, Du P, Shi J, Yang B, Liang T, Wang P, Chen J, Zhang Y, He Y, Jia X, Duan G, Li F. DGT methodology is more sensitive than conventional extraction strategies in assessing amendment-induced soil cadmium availability to rice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 760:143949. [PMID: 33340737 DOI: 10.1016/j.scitotenv.2020.143949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/15/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Using diffusive gradients in thin films (DGT) is a recently developed alternative method of rapidly evaluating the bioavailability of metals in soil. However, the method has found only limited application in systematic assessment of the bioavailability of cadmium (Cd) in red limestone paddy soils treated with different soil amendments. Of the four methods compared for estimating Cd content of rice grains from plants grown in such soils of central China treated with eleven different soil amendments in pot culture, Cd content of DGT-labile soil was significantly correlated to Cd concentrations in brown rice (R = 0.447, p < 0.01). The other three methods involved CaCl2, diethylenetriaminepentaacetic acid (DTPA), or NH4NO3. Some other properties of soil, such as pH, redox potential, content of dissolved organic matter, and cation exchange capacity were also determined. A simple algorithm developed to evaluate the sensitivity of the four methods also confirmed DGT as the most efficient method to predict the bioavailability of Cd in red limestone paddy soils.
Collapse
Affiliation(s)
- Huilong Luo
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Ping Du
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China.
| | - Jing Shi
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China; College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Bin Yang
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Tian Liang
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Panpan Wang
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Juan Chen
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Yunhui Zhang
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Ying He
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Xiuwen Jia
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Fasheng Li
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| |
Collapse
|