Title:
METHOD FOR REMEDIATING SOIL POLLUTED WITH LEAD-POLYCHLORINATED BIPHENYL COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2014/094365
Kind Code:
A1
Abstract:
Disclosed is a method for remediating soil polluted with lead-polychlorinated biphenyl (Pb-PCBs) compounds, comprising: sterilizing Impatiens balsamina seeds with hydrogen peroxide and then spot-sowing in a seedling raising pot, transplanting into soil polluted with Pb and PCBs when the seeds have germinated and the young seedlings have grown to 5-8 cm, watering periodically to maintain an appropriate humidity, harvesting whole plants after growing for 120 days and handling properly, thereby completing a remediation cycle. The above operations are repeated until the content of Pb-PCBs in the soil is reduced to environmental safety standards. The present invention has the advantages of: Impatiens balsamina has strong adaptability and resistance to the cold and infertility, and seeds which are scattered on the ground can grow by themselves under appropriate humidity and heat conditions and can grow rapidly, facilitating cultivation and management; and compared to conventional polluted soil remediation methods, the remediation of soil polluted with Pb/PCBs compounds using the tolerant flower plant Impatiens balsamina has the characteristics of less investment, a low engineering workload, low technical requirements and no secondary pollution and the like, and the environment is beautified while the polluted soil is remediated.
Inventors:
LIN MAOHONG (CN)
ZHOU QIXING (CN)
SU HUI (CN)
ZHOU QIXING (CN)
SU HUI (CN)
Application Number:
PCT/CN2013/070012
Publication Date:
June 26, 2014
Filing Date:
January 04, 2013
Export Citation:
Assignee:
UNIV NANKAI (CN)
LIN MAOHONG (CN)
ZHOU QIXING (CN)
SU HUI (CN)
LIN MAOHONG (CN)
ZHOU QIXING (CN)
SU HUI (CN)
International Classes:
B09C1/00
Domestic Patent References:
| WO2002016622A1 | 2002-02-28 |
Foreign References:
| CN101181715A | 2008-05-21 |
Other References:
SUN, YUEBING ET AL.: "Phytoremediation for co-contaminated soils of benzo[a]pyrene (B[a]P) and heavy metals using ornamental plant Togetes Patula.", JOURNAL OF HAZARDOUS MATERIALS., vol. 186, 5 January 2011 (2011-01-05), pages 2075 - 2082
JIANG, CHENG ET AL.: "Studies on Tolerance of Garden Balsam Seeds to Plumbum.", SEED., vol. 28, no. 9, September 2009 (2009-09-01), pages 16 - 19
JIANG, CHENG ET AL.: "Studies on Tolerance of Garden Balsam Seeds to Plumbum.", SEED., vol. 28, no. 9, September 2009 (2009-09-01), pages 16 - 19
Attorney, Agent or Firm:
TIANJIN JIAMENG INTELLECTUAL PROPERTY AGENT CO., LTD (CN)
天津佳盟知识产权代理有限公司 (CN)
天津佳盟知识产权代理有限公司 (CN)
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