生物炭-坡筋石复合材料修复土壤中镉和铅的研究

IF 0.6 4区环境科学与生态学 Q4 ECOLOGY

Applied Ecology and Environmental Research Pub Date : 2023-01-01 DOI:10.15666/aeer/2105_40814097

W. CHEN, H.Y. YU, X.S. TAI, X. MI

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REMEDIATION OF CADMIUM AND LEAD IN CONTAMINATED SOIL USING BIOCHAR-PALYGORSKITE COMPOSITE

. The biochar-palygorskite composite (BC/PAL) was synthesized and applied in the remediation of soil polluted by heavy metals. The efficiency of BC/PAL on the soil physicochemical property, the bioavailability and chemical fraction of Cd and Pb in the soil, the growth of the plants and heavy metals accumulation in maize ( Zea mays L.) were investigated by pot and incubation experiments. The data show that BC/PAL can greatly enhance the stability of Cd and Pb, facilitating their transition from labile to stable components. And the composite can also reduce the CaCl 2 -extractable Cd and Pb with a maximum reduction efficiency of 57.76% and 42.81%, respectively. The fresh weight of corn seedlings had a more than sevenfold increase and the accumulation of Cd and Pb in shoot and root parts decreased significantly. BC/PAL can effectively improve the contents of soil available nutrients, soil enzyme activity, and organic carbon content. It can significantly reduce the bioavailability and ecotoxicity of Cd and Pb in the soil. The biochar-palygorskite composites can be further investigated as an efficient

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来源期刊

Applied Ecology and Environmental Research ECOLOGY-ENVIRONMENTAL SCIENCES

CiteScore

1.40

自引率

14.30%

发文量

104

审稿时长

14 months

期刊介绍： The Journal publishes original research papers and review articles. Researchers from all countries are invited to publish pure or applied ecological, environmental, biogeographical, zoological, botanical, paleontological, biometrical-biomathematical and quantitative ecological or multidisciplinary agricultural research of international interest on its pages. The focus is on topics such as: -Community, ecosystem and global ecology- Biometrics, theoretical- and quantitative ecology- Multidisciplinary agricultural and environmental research- Sustainable and organic agriculture, natural resource management- Ecological methodology, monitoring and modeling- Biodiversity and ecosystem research, microbiology, botany and zoology- Biostatistics and modeling in epidemiology, public health and veterinary- Earth history, paleontology, extinctions, biogeography, biogeochemistry- Conservation biology, environmental protection- Ecological economics, natural capital and ecosystem services- Climatology, meteorology, climate change, climate-ecology. The Journal publishes theoretical papers as well as application-oriented contributions and practical case studies. There is no bias with regard to taxon or geographical area. Purely descriptive papers (like only taxonomic lists) will not be accepted for publication.