Title:
ULTRA-STABLE MINERALIZED SOIL REMEDIATION MATERIAL FOR FARMLAND CONTAMINATED BY HEAVY METALS
Document Type and Number:
WIPO Patent Application WO/2023/019787
Kind Code:
A1
Abstract:
An ultra-stable mineralized soil remediation material for farmland contaminated by heavy metals. The material comprises, in parts by mass, 16-18 parts of limestone, 12-15 parts of gypsum ores, 12-15 parts of bauxite, 4-5 parts of medical stone and 8-10 parts of biochar. Further disclosed is a method for using the remediation material, the method comprising the following steps: 1) taking a soil sample from farmland to be remediated, and measuring the contamination degree of the soil sample; 2) digging furrows; 3) uniformly spreading the material on the furrows by means of a soil conditioner spreading and spraying all-in-one machine; 4) burying and trowelling the furrows, and irrigating same to ensure that the water content of soil is 20-25%; and (5) after 10-15 days, achieving the remediation of soil contaminated by heavy metals. By means of the method, the heavy metal content of soil can keep in line with the soil environment quality standards in China for 5 years or longer, the maintenance cost is reduced, and the maintenance effect is improved.
Inventors:
ZHANG JIANYU (CN)
LEI XIAODONG (CN)
SHE JUN (CN)
ZHANG XUCHUAN (CN)
LEI XIAODONG (CN)
SHE JUN (CN)
ZHANG XUCHUAN (CN)
Application Number:
PCT/CN2021/132329
Publication Date:
February 23, 2023
Filing Date:
November 23, 2021
Export Citation:
Assignee:
JIANGSU LONGCHANG CHEMICAL CO (CN)
International Classes:
B09C1/08
Foreign References:
| CN111889499A | 2020-11-06 | |||
| CN110935722A | 2020-03-31 | |||
| CN111088050A | 2020-05-01 | |||
| CN109456769A | 2019-03-12 | |||
| CN106607452A | 2017-05-03 | |||
| CN112239671A | 2021-01-19 | |||
| US20200337255A1 | 2020-10-29 | |||
| US20150232349A1 | 2015-08-20 | |||
| CN111100652A | 2020-05-05 |
Attorney, Agent or Firm:
BEIJING YIGE INTELLECTUAL PROPERTY AGENT LTD (GENERAL PARTNERSHIP) (CN)
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