1
Robert R Stanforth, Ajit K Chowdhury: In situ method for decreasing heavy metal leaching from soil or waste. RMT, Lathrop & Clark, April 13, 1993: US05202033 (68 worldwide citation)

A method of treating solid waste in soil or solid disposed waste containing unacceptable levels of leachable metals, such as lead, cadmium, arsenic, zinc, copper and chromium, includes mixing the solid waste or soil in place with a phosphate source or a carbonate source or ferrous sulfate. After the ...


2
Robert R Stanforth: Method for reduction of heavy metal leaching from hazardous waste under acidic and nonacidic conditions. RMT, Lathrop & Clark, August 6, 1991: US05037479 (61 worldwide citation)

A method of treating solid hazardous wastes containing unacceptable levels of leachable metals such as lead, cadmium and zinc includes mixing the solid waste with a buffering agent selected from the group consisting of magnesium oxide, magnesium hydroxide, reactive calcium carbonates and reactive ma ...


3
Robert R Stanforth: Method for treating hazardous wastes. Lathrop & Clark, August 21, 1990: US04950409 (43 worldwide citation)

A method of treating solid hazardous waste containing unacceptable levels of leachable metals such as lead and cadmium includes mixing the solid waste with lime and an agent selected from the group consisting of carbon dioxide and bicarbonate. After the solid waste and agent are mixed under conditio ...


4
Robert R Stanforth: Method and mixture for treating hazardous wastes. RMT, Lathrop & Clark, December 26, 1989: US04889640 (41 worldwide citation)

A method of treating solid hazardous waste containing unacceptable levels of leachable metals such as lead and cadmium includes mixing the solid waste with an agent selected from the group consisting of reactive calcium carbonate, reactive magnesium carbonate and reactive calcium magnesium carbonate ...


5
Robert R Stanforth, Paul V Knopp: Method of nonhazardous removal of paint containing heavy metals and coating preparation for performing the same. RMT, Andrus Sceales Starke & Sawall, June 10, 1997: US05637355 (23 worldwide citation)

The present invention involves a method of removing paint containing heavy metal from a surface without the production of hazardous wastes. Specifically, this method involves applying a coating preparation to the heavy metal containing paint prior to its removal from its surface. The preparation con ...


6
Robert R Stanforth: Method of treating arsenic-contaminated matter using aluminum compounds. RMT, Andrus Sceales Starke & Sawall, January 12, 1999: US05859306 (8 worldwide citation)

A method of treating arsenic-contaminated matter using an aluminum compound in conjunction with an alkaline buffer, thereby stabilizing the arsenic contained in the contaminated matter and decreasing leaching ability. Preferably, the aluminum compound is a soluble aluminum salt such as aluminum sulf ...


7
Robert R Stanforth, Paul V Knopp: Method of nonhazardous removal of paint containing heavy metals and coating preparation for performing the same. RMT, Andrus Sceales Starke & Sawall, October 27, 1998: US05827574 (5 worldwide citation)

The present invention involves a method of removing paint containing heavy metal from a surface without the production of hazardous wastes. Specifically, this method involves applying a coating preparation to the heavy metal containing paint prior to its removal from its surface. The preparation con ...


8
Robert R Stanforth, Paul V Knopp: Method of nonhazardous removal of paint containing heavy metals and coating preparation for performing the same. RMT, Andrus Sceales Starke & Sawall, December 22, 1998: US05851278 (3 worldwide citation)

The present invention involves a method of removing paint containing heavy metal from a surface without the production of hazardous wastes. Specifically, this method involves applying a coating preparation to the heavy metal containing paint prior to its removal from its surface. The preparation con ...


9
Robert R Stanforth: Reducing lead bioavailability. National University of Singapore, Birch Stewart Kolasch & Birch, July 8, 2003: US06590133 (2 worldwide citation)

A method for reducing the solubility of lead during digestion or in the environment has been developed. Lead is incorporated into a solid material formed by the in situ oxidation of iron. This can be accomplished by introducing ferrous iron into the soil, either in solid or liquid form, and then oxi ...


10
Robert R Stanforth: Reducing lead bioavailability. Birch Stewart Kolasch & Birch, August 22, 2002: US20020115899-A1

A method for reducing the solubility of lead during digestion or in the environment has been developed. Lead is incorporated into a solid material formed by the in situ oxidation of iron. This can be accomplished by introducing ferrous iron into the soil, either in solid or liquid form, and then oxi ...