本文選題：重金屬　切入點(diǎn)：釩冶煉廠　出處：《工程科學(xué)學(xué)報(bào)》2016年10期 　論文類型：期刊論文

【摘要】：對某釩冶煉廠周邊土壤和植被進(jìn)行現(xiàn)場采樣,共采集到高等植物20科29種,土壤樣品7個(gè),采用ICP-MS和ICPOES分析本土植物和土壤中重金屬含量.結(jié)果表明,冶煉廠周邊土壤普遍存在V、Cr和Cd污染現(xiàn)象,重金屬V和Cr的污染問題突出.29種植物體內(nèi)均檢測到V、Cr、Cd和Pb,其中V含量相對較高.本土植物蜈蚣草體內(nèi)重金屬V含量最高,其地上部分V積累量為86.51 mg·kg-1,地下部分為814.25 mg·kg-1;野胡蘿卜對Cd的富集和轉(zhuǎn)運(yùn)能力顯著高于其他植物,地上部分和地下部分Cd含量分別為18.56 mg·kg-1和5.66 mg·kg-1.兩種植物表現(xiàn)出對釩冶煉導(dǎo)致周邊復(fù)合重金屬污染極高的耐性,可作為釩冶煉廠周邊土壤重金屬污染植物修復(fù)的先鋒物種.
[Abstract]:The soil and vegetation around a vanadium smelter were sampled on the spot. A total of 20 families, 29 species and 7 soil samples of higher plants were collected. The contents of heavy metals in native plants and soils were analyzed by ICP-MS and ICPOES. The pollution of V and Cr in the soil around the smelter was widespread. The pollution of heavy metal V and Cr was prominent in all the 29 plants. Among them, the content of V was relatively high, and the content of heavy metal V in native plant Pteris vittata was the highest. The accumulation of V in aboveground part was 86.51 mg 路kg-1, and that in underground part was 814.25 mg 路kg-1.The accumulation and transport ability of CD in wild carrot was significantly higher than that in other plants. The CD contents of aboveground and underground parts were 18.56mg 路kg-1 and 5.66mg 路kg-1.The two plants showed high tolerance to the compound heavy metal pollution caused by vanadium smelting, and could be used as pioneer species for phytoremediation of soil heavy metal pollution around vanadium smelters.
【作者單位】： 北京科技大學(xué)環(huán)境工程系;工業(yè)典型污染物資源化處理北京市重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家水體污染控制與治理科技重大專項(xiàng)資助項(xiàng)目(2015ZX07205003)
【分類號】：X173;X758
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本文編號：1597296