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首页> 外文期刊>Journal of Science and Technology of Greenhouse Culture >The effect of zeolite,bentonite and sepiolite minerals onheavy metal uptake by sunflower
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The effect of zeolite,bentonite and sepiolite minerals onheavy metal uptake by sunflower

机译：沸石，膨润土和海泡石矿物对向日葵重金属吸收的影响

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Mining, industrial and agricultural activities can result in considerable soil pollution by heavy metals (HMs). One of the methods to control this pollution is application of adsorbent minerals. The purpose of this study was to compare the effects of adsorbent minerals (bentonite, zeolite and sepiolite) on transfer of some heavy metals (i.e., Pb, Zn and Cd) from soil to tissues of sunflower (Heliantus annuus L.). Treatments included: Non-polluted soil, HM-polluted soil, polluted soil + bentonite, polluted soil + zeolite, and polluted soil + sepiolite. Sunflower seeds were planted in different pots containing the above treated soils. After 70 days of growth, plants were harvested and HMs content was measured. Results revealed that the uptake of HMs from non-polluted soil was lower than that of other treatments. In the polluted soil + sepiolite treatment, the added sepiolite increased plant Cd and Zn uptake by 0.37 and 7.17 mg/kg, respectively. However, the differences in HMs uptake were not significant for other treatments. Zeolite addition decreased plant uptake of Zn and Cd by about 12 and 0.21 mg/kg, respectively, while bentonite addition reduced Pb uptake by about 3.05 mg/kg, without any significant difference for the other treatments. Zn uptake was higher by about 12.2 mg/kg in plant shoots as compared to plant roots. On the contrary, the roots took up higher amounts of Cd and Pb, as compared to the shoots. Despite high concentration of the HMs in the polluted soils, considerable tendency of sunflower for uptake, and a high adsorption capacity of the applied minerals, the HMs uptake by sunflower and surface adsorption by the minerals were very low, probably due to HMs precipitation in the soil. Keywords: Soil pollution, Heavy metals, Adsorption capacity Full-Text Type of Study: Research | Subject: Ornamental and Medicinal Crop Production Received: 2015/06/15 | Accepted: 2015/06/15 | Published: 2015/06/15 Send email to the article author Related Websites Scientific Publications Commission - Health Ministry Scientific Publications Commission - Science Ministry Yektaweb Company Site Keywords ?????, Academic Journal, Scientific Article, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ?? Vote ? 2015 All Rights Reserved | Journal of Science and Technology of Greenhouse Culture -Isfahan University of Technology
机译：采矿，工业和农业活动可能导致重金属（HMs）污染土壤。控制这种污染的方法之一是应用吸附性矿物。这项研究的目的是比较吸附性矿物（膨润土，沸石和海泡石）对某些重金属（即Pb，Zn和Cd）从土壤向向日葵组织（Heliantus annuus L.）的转移的影响。处理包括：非污染土壤，HM污染土壤，污染土壤+膨润土，污染土壤+沸石和污染土壤+海泡石。将向日葵种子种植在含有上述处理过的土壤的不同盆中。生长70天后，收获植物并测量HMs含量。结果表明，未污染土壤对重金属的吸收低于其他处理。在污染的土壤+海泡石处理中，添加的海泡石可使植物对Cd和Zn的吸收分别增加0.37和7.17 mg / kg。但是，HMs摄取的差异对于其他治疗方法并不明显。沸石的添加分别使植物对锌和镉的吸收减少了约12和0.21 mg / kg，而膨润土的添加使Pb的吸收减少了约3.05 mg / kg，其他处理没有明显差异。与植物根部相比，植物新芽中锌的吸收量高约12.2 mg / kg。相反，与芽相比，根吸收了更多的镉和铅。尽管污染土壤中HMs的浓度很高，向日葵吸收的趋势相当大，而且施用的矿物质具有很高的吸附能力，但向日葵对HMs的吸收和矿物对表面的吸附却非常低，这可能是由于HMs在土壤中的沉淀所致。泥。关键词：土壤污染重金属吸附能力全文研究类型：研究|主题：观赏和药用作物产量：2015/06/15 |接受：2015/06/15 |发布：2015/06/15发送电子邮件给文章作者相关网站科学出版物委员会-卫生部科学出版物委员会-科学部Yektaweb公司网站关键字??????，Academic Journal，Scientific Article，???? ?????? ??，???? ?????? ??，???? ?????? ??，???? ?????? ??，???? ?????? ??，???? ?????? ??，???? ??投票吗？ 2015版权所有|温室文化科学技术杂志-伊斯法罕工业大学

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