REHABILITATION MATERIAL FOR REDUCING THE BIOAVAILABILITY OF Cd IN SOIL AND USE IN IMMOBILIZATION REMEDIATION OF WEAKLY ALKALINE SOIL THEREOF
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United States of America Patent
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Feb 1, 2024
app pub date -
Jan 21, 2021
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Jan 21, 2021
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Abstract
A rehabilitation material for reducing the bioavailability of Cd in soil and its use in immobilization remediation of weakly alkaline soil are disclosed. The rehabilitation material includes an iron mine tailing and an alkali lignin, wherein the iron mine tailing accounts for 80-90% of the sum of the masses of the iron mine tailing and the alkali lignin, and the iron mine tailing is prepared by mixing an iron tailing, mica, and dolomite in a mass ratio of 1:1.5:2.5, and calcining the resulting mixture at 1100° C. for 1 hour.
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