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赵霞, 张言, 高定烽, 熊华斌, 高云涛, 李思敏. 乳酸发酵液淋洗铅锌矿尾矿坝口底泥中的重金属铅[J]. 环境工程学报, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
引用本文: 赵霞, 张言, 高定烽, 熊华斌, 高云涛, 李思敏. 乳酸发酵液淋洗铅锌矿尾矿坝口底泥中的重金属铅[J]. 环境工程学报, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
shu
ZHAO Xia, ZHANG Yan, GAO Dingfeng, XIONG Huabin, GAO Yuntao, LI Simin. Leaching removal lead in sediment at dam exit of the lead-zinc tailings using lactic acid fermentation production[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
Citation: ZHAO Xia, ZHANG Yan, GAO Dingfeng, XIONG Huabin, GAO Yuntao, LI Simin. Leaching removal lead in sediment at dam exit of the lead-zinc tailings using lactic acid fermentation production[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
shu

乳酸发酵液淋洗铅锌矿尾矿坝口底泥中的重金属铅

  • 1.

    云南民族大学化学与环境学院，昆明 650500

  • 2.

    民族地区矿产资源综合利用重点实验室，昆明650500

  • 3.

    云南省跨境民族地区生物质资源清洁利用国际联合研究中心，昆明650500

  • 基金项目:

    国家自然科学基金资助项目（21367025）

Leaching removal lead in sediment at dam exit of the lead-zinc tailings using lactic acid fermentation production

  • 1.

    College of Chemistry and Environment, Yunnan Minzu University, Kunming 650500，China

  • 2.

    Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions, Kunming 650500，China

  • 3.

    Joint Research Centre for International Cross-Border Ethnic Regions Biomass Clean Utilization in Yunnan,Kunming 650500，China

  • Fund Project:

  • 摘要: 为了降低尾矿中重金属对环境造成的危害，利用乳酸发酵液对铅尾矿坝口底泥进行了淋洗研究，从而探析低分子质量有机酸在土壤重金属淋洗修复中的应用前景。结果表明：乳酸对底泥中的Pb具有较好的去除率，当选择发酵菌种为米根霉，发酵时间为48?h，米根霉发酵生产的乳酸含量可达到14%；该发酵液对Pb的去除率达到了19.52%，与同一酸度纯乳酸淋洗铅的去除率仅差2.6%。从铅的形态分析可知，乳酸发酵液对尾矿坝口底泥中酸可提取态铅和可氧化态铅的去除率分别为80%和50%。利用发酵生产有机酸淋洗修复土壤中的重金属具有很好的潜力。
    Abstract: To reduce environmental pollution and hazards of heavy metals in the tailings, a kind of lactic acid fermented broth was used to leach the sediment at the lead-zinc tailing dam exit. And the application prospect in metals leaching and soil remediation by low molecular organic acid was also analyzed. The results show that the lactic acid leaching led to a good Pb removal efficiency. When the fermentation strain of Rhizopusoryzae was fermented for 48 hours, 14% produced lactic acid was achieved. The Pb removal rate through leaching by this fermentation liquor could reach 19.52%, which was 2.6% lower than that by pure lactic acid. Moreover, leaching bythe lactic acid fermented broth could remove 80% acid-soluble Pb and 50% oxidizable Pb from the sediment at dam exit of the lead-zinc tailings, respectively. Therefore, leaching technique using fermented organic acid to remove heavy metal in polluted soil has a great development potential.
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  • 刊出日期:  2018-11-29
赵霞, 张言, 高定烽, 熊华斌, 高云涛, 李思敏. 乳酸发酵液淋洗铅锌矿尾矿坝口底泥中的重金属铅[J]. 环境工程学报, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
引用本文: 赵霞, 张言, 高定烽, 熊华斌, 高云涛, 李思敏. 乳酸发酵液淋洗铅锌矿尾矿坝口底泥中的重金属铅[J]. 环境工程学报, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
shu
ZHAO Xia, ZHANG Yan, GAO Dingfeng, XIONG Huabin, GAO Yuntao, LI Simin. Leaching removal lead in sediment at dam exit of the lead-zinc tailings using lactic acid fermentation production[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
Citation: ZHAO Xia, ZHANG Yan, GAO Dingfeng, XIONG Huabin, GAO Yuntao, LI Simin. Leaching removal lead in sediment at dam exit of the lead-zinc tailings using lactic acid fermentation production[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3468-3474. doi: 10.12030/j.cjee.201804123
shu

乳酸发酵液淋洗铅锌矿尾矿坝口底泥中的重金属铅

  • 1. 云南民族大学化学与环境学院，昆明 650500
  • 2. 民族地区矿产资源综合利用重点实验室，昆明650500
  • 3. 云南省跨境民族地区生物质资源清洁利用国际联合研究中心，昆明650500
基金项目:

国家自然科学基金资助项目（21367025）

摘要: 为了降低尾矿中重金属对环境造成的危害，利用乳酸发酵液对铅尾矿坝口底泥进行了淋洗研究，从而探析低分子质量有机酸在土壤重金属淋洗修复中的应用前景。结果表明：乳酸对底泥中的Pb具有较好的去除率，当选择发酵菌种为米根霉，发酵时间为48?h，米根霉发酵生产的乳酸含量可达到14%；该发酵液对Pb的去除率达到了19.52%，与同一酸度纯乳酸淋洗铅的去除率仅差2.6%。从铅的形态分析可知，乳酸发酵液对尾矿坝口底泥中酸可提取态铅和可氧化态铅的去除率分别为80%和50%。利用发酵生产有机酸淋洗修复土壤中的重金属具有很好的潜力。

English Abstract

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