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Vítková M, Zarzsevszkij S, Šillerová H, Karlova A, Šimek P, Wimmerová L, Martincová M, Urbánek B, Komárek M. Sustainable use of composted sewage sludge: Metal(loid) leaching behaviour and material suitability for application on degraded soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172588. [PMID: 38642754 DOI: 10.1016/j.scitotenv.2024.172588] [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: 12/30/2023] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 04/22/2024]
Abstract
Composted sewage sludge was investigated as a promising material for the reclamation or remediation of degraded sites. Using sewage sludge as soil amendment provides environmental benefits and risks while supporting circularity and waste minimisation. This study aims to comprehensively assess the suitability of locally available low-cost sludge treatment for sustainable and environmentally safe topsoil disposal in a brownfield area affected by coal mining. A nine-month composting was conducted before field application to the soil environment. The objectives were to assess: (i) composting time-dependent and pH-dependent metal(loid) leachability from composted sludges, (ii) the effect of sludges on metal(loid) leachability from soil over the first six months, and (iii) metal(loid) plant uptake during the first vegetation season as well as the bioaccumulation and translocation factors. The set of standardised leaching experiments confirmed the positive effect of compost maturity, i.e. despite some fluctuations over time, metal(loid) availability from the final composts was very low. Some metals showed unusual pH-dependent behaviour with the highest leachability at pH 8 due to excessive release of dissolved organic matter from the not-yet-stabilised matrix. Ecotoxicity testing confirmed the safety of the final composts for further soil application. The sludge-amended plots displayed similar metal(loid) leaching and pH evolution in time compared to the control biomass-amended plot. However, plant species (Artemisia vulgaris L.) that formed the natural vegetation cover of the experimental plots showed cumulative metal(loid) uptake. Cadmium and zinc were identified as the critical metals possibly related to the applied sludges, yielding high bioaccumulation and translocation factors. Yet, the quality of the compost feedstock, heterogeneity, and background values of the brownfield site need to be considered. Nevertheless, soil respiration indicated no adverse effects on soil health six months after sludge application. Overall, the composted material demonstrated potential suitability for remediation application in the studied area.
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Affiliation(s)
- Martina Vítková
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic.
| | - Szimona Zarzsevszkij
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Hana Šillerová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Anna Karlova
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Pavel Šimek
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Lenka Wimmerová
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Marie Martincová
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Boris Urbánek
- DEKONTA, a.s., Dřetovice 109, 273 42 Stehelčeves, Czech Republic
| | - Michael Komárek
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
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Hou Y, Zeng W, Ao C, Luo Y, Wang Z, Hou M, Huang J. Bacillus atrophaeus WZYH01 and Planococcus soli WZYH02 Improve Salt Tolerance of Maize ( Zea mays L.) in Saline Soil. FRONTIERS IN PLANT SCIENCE 2022; 13:891372. [PMID: 35599881 PMCID: PMC9121094 DOI: 10.3389/fpls.2022.891372] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/08/2022] [Indexed: 06/12/2023]
Abstract
With the increasing shortage of land resources and people's attention to the ecological environment, the application of microbial fertilizer with natural soil microorganisms as the main component has attracted increasing attention in saline agriculture. In this study, two salt-tolerant strains, YL07 (Bacillus atrophaeus) and YL10 (Planococcus soli), were isolated from maize (Zea mays L.) rhizosphere soil with a saturated conductivity (ECe) of 6.13 dS/m and pH of 8.32 (Xinjiang, China). The effects of B. atrophaeus WZYH01 (YL07) and Planococcus soli WZYH02 (YL10) on the growth and development of maize (Zea mays L.) under salt stress (ECe = 5.9 dS/m) were further studied. The results showed that compared with uninoculation, inoculation with B. atrophaeus WZYH01 and Planococcus soli WZYH02 significantly improved maize growth performance, biomass yield, and antioxidant levels under salt stress, and the effect of Planococcus soli WZYH02 was more prominent than the effect of B. atrophaeus WZYH01. Moreover, inoculation with B. atrophaeus WZYH01 and Planococcus soli WZYH02 protected maize from salt stress by regulating plant hormone [IAA and abscisic acid (ABA)] levels and increasing nutrient acquisition. In addition, the tested strains were most efficient for maize growth and health, increasing the content of K+ accompanied by an effective decrease in Na+ in maize tissues. The transcription levels of salt tolerance genes (ZMNHX1, ZMNHX2, ZMHKT, ZMWRKY58, and ZMDREB2A) in inoculated maize were also dramatically higher than the transcription levels of the specified salt tolerance genes in uninoculated maize. In conclusion, B. atrophaeus WZYH01 and Planococcus soli WZYH02 can alleviate the harmful effects of salt stress on crop growth, thereby promoting sustainable agricultural development.
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Affiliation(s)
- Yaling Hou
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
| | - Wenzhi Zeng
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
| | - Chang Ao
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
| | - Ying Luo
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
| | - Zhao Wang
- State Key Laboratory of Hybrid Rice, Institute for Advanced Studies, Wuhan University, Wuhan, China
| | - Menglu Hou
- State Key Laboratory of Hybrid Rice, Institute for Advanced Studies, Wuhan University, Wuhan, China
| | - Jiesheng Huang
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
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Wang Y, Lei Z, Ye R, Zhou W, Zhou Y, Zou Z, Li J, Yi L, Dai Z. Effects of Cadmium on Physiochemistry and Bioactive Substances of Muskmelon ( Cucumis melo L.). Molecules 2022; 27:molecules27092913. [PMID: 35566265 PMCID: PMC9101123 DOI: 10.3390/molecules27092913] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/16/2022] [Accepted: 04/28/2022] [Indexed: 02/05/2023] Open
Abstract
Muskmelon pedicel is the fruit stalk of muskmelon and one of the traditional Chinese medicines, which can be used to treat jaundice, diabetes and neuropathy. However, in recent years, agricultural soil heavy metal cadmium (Cd) pollution has become serious, coupled with the imperfect sales management of herbal medicine, increasing the potential health risk of contaminated herbal medicine in the human body. In this paper, the comprehensive quality of contaminated muskmelon was tested. The results showed that Cd stress significantly inhibited the growth of muskmelon plants, reduced the anthocyanin and chlorophyll contents, and increased the fruit size and sweetness of muskmelon. In addition, heavy metal Cd can also cause oxidative stress in plants, resulting in a series of changes in antioxidant enzyme activities. In the experimental group, the content of polyphenols and saponins increased by 27.02% and 23.92%, respectively, after high-concentration Cd treatment, which may be a mechanism of plant resistance to stress. This paper reveals that the content of bioactive substances in Chinese herbal medicine is high, but the harm in heavy metals cannot be underestimated, which should be paid attention to by relevant departments.
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Affiliation(s)
- Yunqiang Wang
- Institute of Economic Crops, Hubei Academy of Agricultural Science, Wuhan 430064, China; (Y.W.); (W.Z.); (L.Y.)
- Vegetable Germplasm Innovation and Genetic Improvement Key Laboratory of Hubei Province, Hubei Academy of Agricultural Science, Wuhan 430064, China
| | - Zhen Lei
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (Z.L.); (R.Y.); (Y.Z.); (Z.Z.)
| | - Rongbin Ye
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (Z.L.); (R.Y.); (Y.Z.); (Z.Z.)
| | - Wei Zhou
- Institute of Economic Crops, Hubei Academy of Agricultural Science, Wuhan 430064, China; (Y.W.); (W.Z.); (L.Y.)
- Vegetable Germplasm Innovation and Genetic Improvement Key Laboratory of Hubei Province, Hubei Academy of Agricultural Science, Wuhan 430064, China
| | - Ying Zhou
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (Z.L.); (R.Y.); (Y.Z.); (Z.Z.)
| | - Zhengkang Zou
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (Z.L.); (R.Y.); (Y.Z.); (Z.Z.)
| | - Junli Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (Z.L.); (R.Y.); (Y.Z.); (Z.Z.)
- Correspondence: (J.L.); (Z.D.)
| | - Licong Yi
- Institute of Economic Crops, Hubei Academy of Agricultural Science, Wuhan 430064, China; (Y.W.); (W.Z.); (L.Y.)
- Vegetable Germplasm Innovation and Genetic Improvement Key Laboratory of Hubei Province, Hubei Academy of Agricultural Science, Wuhan 430064, China
| | - Zhaoyi Dai
- Institute of Economic Crops, Hubei Academy of Agricultural Science, Wuhan 430064, China; (Y.W.); (W.Z.); (L.Y.)
- Vegetable Germplasm Innovation and Genetic Improvement Key Laboratory of Hubei Province, Hubei Academy of Agricultural Science, Wuhan 430064, China
- Correspondence: (J.L.); (Z.D.)
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Air pollution from gas refinery through contamination with various elements disrupts semiarid Zagros oak (Quercus brantii Lindl.) forests, Iran. Sci Rep 2022; 12:284. [PMID: 34997162 PMCID: PMC8742013 DOI: 10.1038/s41598-021-04429-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/14/2021] [Indexed: 11/30/2022] Open
Abstract
Soils and oak trees (Quercus brantii Lindl.) in Zagros forests are suffering from the air pollution caused by the Ilam Gas Refinery. Thus, for the first time, we investigated the contamination level of sulfur and trace elements in these ecosystems. Sampling of soil and tree leaves was carried out in different seasons of 2019 and at different distances from the gas refinery. The results showed that soils and leaves at the various distances compared with control distance (10,000 m) were more affected by the gas refinery. Distance from the pollution source and physicochemical properties of soils were the main factors affecting contamination of soil elements contents. The soils with pollution load indices (PLI) of 4.54 were in the highly polluted category. Sulfur was at highly polluted category in soils and were highly enriched in trees. The trees mainly absorbed studied elements via their aerial organs. Our findings indicated that oak trees with the highest value of metal accumulation index are influence tools for monitoring various elements in the polluted air produced by the gas refinery. It is recommended that the ecosystem components near the refinery be studied to accurately evaluate disorders in the food chain.
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Orellana Mendoza E, Cuadrado W, Yallico L, Zárate R, Quispe-Melgar HR, Limaymanta CH, Sarapura V, Bao-Cóndor D. Heavy metals in soils and edible tissues of Lepidium meyenii (maca) and health risk assessment in areas influenced by mining activity in the Central region of Peru. Toxicol Rep 2021; 8:1461-1470. [PMID: 34401355 PMCID: PMC8353470 DOI: 10.1016/j.toxrep.2021.07.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/21/2021] [Accepted: 07/30/2021] [Indexed: 11/08/2022] Open
Abstract
Heavy metal contamination of soil and agricultural products is an environmental problem, has an adverse effect on the quality of food crops, and is a danger to food security and public health. The concentration of arsenic (As), cadmium (Cd), lead (Pb), iron (Fe) and zinc (Zn) in surface soils and edible hypocotyls tissues of two ecotypes of Lepidium meyenii Walpers (maca) was evaluated in three districts of the Junín province, Peru. In addition, the risk to human health due to exposure to heavy metals from maca consumption was evaluated. Soil samples and maca hypocotyls were collected in areas influenced by mining and metallurgical activity. The mean concentration of Cd (0.32 ± 0.23 mg/kg) and Pb (0.20 ± 0.12 mg/kg) in maca samples exceeded the values established by the Food and Agriculture Organization and the World Health Organization. The bioconcentration factor was less than 1. The estimated daily intake of each metal was below the oral reference dose. The hazard quotient and hazard index were less than 1, it is unlikely to cause non-cancer adverse health outcome. The cancer risk for As and Cd was higher than the tolerable limit (1 × 10-6) in children and adults. In the district of Ondores, the cancer risk for As in children was higher than the acceptable limit (1 × 10-4). Residents of the Ondores district would be more exposed to As and Cd from consumption of maca hypocotyls. It is very important to carry out continuous monitoring of other toxic metals in different ecotypes of maca (red, black, yellow, purple, creamy white, pink) in order to evaluate the variation in the accumulation of heavy metals and the level of toxicity of each metal between ecotypes.
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Affiliation(s)
- Edith Orellana Mendoza
- Faculty of Forestry and Environmental Sciences, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla 3909–4089, Huancayo, Huancayo 12006, Peru
| | - Walter Cuadrado
- Faculty of Applied Sciences, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla 3909–4089, Huancayo, Huancayo 12006, Peru
| | - Luz Yallico
- Faculty of Nursing, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla 3909–4089, Huancayo, Huancayo 12006, Peru
| | - Rosa Zárate
- Faculty of Forestry and Environmental Sciences, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla 3909–4089, Huancayo, Huancayo 12006, Peru
| | | | - Cesar H. Limaymanta
- Department of Library and Information Science, Universidad Nacional Mayor de San Marcos, Av. Universitaria with Av. Venezuela, Lima, Lima District 15081, Peru
- Department of Science, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Vicky Sarapura
- Faculty of Forestry and Environmental Sciences, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla 3909–4089, Huancayo, Huancayo 12006, Peru
| | - Diana Bao-Cóndor
- Faculty of Forestry and Environmental Sciences, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla 3909–4089, Huancayo, Huancayo 12006, Peru
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