Patent
Heavy metal stabilizer
Gong Yalong,Huang Lei,Liu Dengbiao,Lin Xiaoyan,Ren Zhong,Xu Chuang,Zhang Shiwei,Wang Chengcong +7 more
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TLDR
In this paper, a heavy metal stabilizer consisting of sodium bentonite, zeolite powder, sulfydryl-iron base modified charcoal, reduced iron powder and calcium oxide is presented.Abstract:
The invention discloses a heavy metal stabilizer which comprises sodium bentonite, zeolite powder, sulfydryl-iron base modified charcoal, reduced iron powder and calcium oxide. By carrying out sulfydryl-iron base modification on charcoal, the adsorption property of the heavy metal stabilizer to heavy metal is improved greatly; by mixing the sulfydryl-iron base modified charcoal with sodium bentonite, zeolite powder, reduced iron powder and calcium oxide, the heavy metal stabilizer is obtained. Compared with other materials, the heavy metal stabilizer has a better heavy metal adsorption property, can be applied to soil of different pH and combined pollution of multiple pollutants such as lead, zinc, copper, cadmium and arsenium at different degrees through reasonable proportioning, can simultaneously and effectively reduce exchangeable form quantity of pollutants such as lead, zinc, copper, cadmium and arsenium in soil, and is high in efficiency, stable and effective for a long term.read more
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