1
Charles A Cody, Steven J Kemnetz, William Bronner: Method of treating lead contaminated soil. Rheox, Roper & Quigg, November 10, 1992: US05162600 (48 worldwide citation)

A method of treating lead contaminated soil to reduce the amount of mobile lead contained in the soil, the method which comprises: (a) providing an agent selected from the group consisting of inorganic phosphate compounds, inorganic phosphite compounds and mixtures thereof; and (b) contacting the ag ...


2
Zhu Yongguan, Chen Shibao, Huang Yizong, Teng Man: Method of treating lead contaminated soil with bone charcoal. Habitat Research Center, Cas, zhou changxin, August 2, 2006: CN200510006261

The method of treating lead contaminated soil with bone charcoal is to use bone charcoal with wide source and low cost in chemical reaction with lead in soil to form stable compound, so as to lower biologically effective lead content in soil, reduce the absorption and accumulation of plant root syst ...