Process for removing heavy metals from soil

Details Process for removing heavy metals from soil Process for removing heavy metals from soil

1994-12-16

1998-04-28

Bos, Steven

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

423 98, 423109, 4236585, C22B 1300, C22B 4300

Patent

active

057441073

ABSTRACT:
Heavy metals are efficiently removed from contaminated soil by a process which comprises leaching or washing the soil with a mild leachant solution. The leachant solution is comprised of an aqueous solution of an acid and a salt. The anion of the acid forms a water-soluble salt with the heavy metals which contaminate the soil. The salt component is comprised of at least one alkali metal, alkaline earth metal, or an ammonium salt having one or more anions which also form a water-soluble salt with the heavy metals leached from the contaminated soil.

REFERENCES:
patent: Re17276 (1929-04-01), Glaeser
patent: 1143110 (1915-06-01), Ellis
patent: 1480110 (1924-01-01), Platten
patent: 1731699 (1929-10-01), Cavalli
patent: 1774883 (1930-09-01), Glaeser
patent: 2128548 (1938-08-01), White
patent: 2328089 (1943-08-01), Mulligan
patent: 2648601 (1953-08-01), Byler et al.
patent: 2873289 (1959-02-01), MacKellar
patent: 3106929 (1963-10-01), Friedrich
patent: 3394061 (1968-07-01), DeForest et al.
patent: 3424552 (1969-01-01), Cadmus
patent: 3476552 (1969-11-01), Parks et al.
patent: 3627482 (1971-12-01), Olson et al.
patent: 3697567 (1972-10-01), Taylor, Jr.
patent: 3930847 (1976-01-01), Stern
patent: 3993804 (1976-11-01), McCready et al.
patent: 4039471 (1977-08-01), McArthur
patent: 4060410 (1977-11-01), Laszlo
patent: 4082546 (1978-04-01), Wallace
patent: 4112191 (1978-09-01), Anderson
patent: 4113471 (1978-09-01), Langhorst et al.
patent: 4120810 (1978-10-01), Palmer
patent: 4216187 (1980-08-01), Dowd
patent: 4317803 (1982-03-01), Wilkomirsky et al.
patent: 4352786 (1982-10-01), Hoh et al.
patent: 4372782 (1983-02-01), Salter et al.
patent: 4410496 (1983-10-01), Smyres et al.
patent: 4435284 (1984-03-01), Heitmeijer
patent: 4552589 (1985-11-01), Mason et al.
patent: 4557759 (1985-12-01), McGrew et al.
patent: 4572822 (1986-02-01), Abe et al.
patent: 4610722 (1986-09-01), Duyvesteyn et al.
patent: 4614543 (1986-09-01), Duyvesteyn et al.
patent: 4734171 (1988-03-01), Murphy
patent: 4746439 (1988-05-01), Newman
patent: 4784757 (1988-11-01), Nelson et al.
patent: 4824576 (1989-04-01), Sood et al.
patent: 4859293 (1989-08-01), Hirako et al.
patent: 4883599 (1989-11-01), Lindahl et al.
patent: 4888053 (1989-12-01), Grayson et al.
patent: 4902343 (1990-02-01), Demarthe et al.
patent: 4992097 (1991-02-01), Fricker
patent: 5009793 (1991-04-01), Muller
patent: 5013358 (1991-05-01), Ball et al.
patent: 5032175 (1991-07-01), Raborar et al.
patent: 5127963 (1992-07-01), Hartup et al.
patent: 5193936 (1993-03-01), Pal et al.
patent: 5209774 (1993-05-01), Rockandel et al.
patent: 5226545 (1993-07-01), Foust
patent: 5244492 (1993-09-01), Cyr
patent: 5300137 (1994-04-01), Weyand et al.
patent: 5342449 (1994-08-01), Holbein et al.
Chem. Abstracts: 116:66424m Erickson et al (1992), no month.
CA 114(24): 232369c Wang et al, 1990, no month.
CA 108(6): 43320v Mitsuo et al, 1987, no month.
Draft Report to the EPA, Contract No. 68-03-3255, US EPA, Emergency Response Branch, Edison, NJ, 1986, Jul.
CSIRO Aust. Div. Soils Tech. Pap. No. 41, 1979, 1-17, no month.
Sci. Total Environ. 1989, 79, 253-270, no month.
Geoderma 1971 5, 197-208, no month.
Soil Sci. Soc. Am. J. 1986, 50, 598-601, no month.
Can. J. Soil Sci. 1976, 56, 37-42, no month.
Can. J. Soil Sci. 1969, 49, 327-334, no month.
Plant and Soil 1973, 38, 605-619, no month.
Environ. Prog. 1990, 9, 79-86, May.
Chemiker-Zeitung 1982, 106, 289-292, no month.
J. Indian Chem. Soc., Sect. A 1982, 21A 444-446, Apr.
Hydrometallurgy 1987, 17, 215-228, no month.
Nippon Kinzoku Gakkaishi 1978, 42(10), 1007-12 (Japan) (abstract only), no month.
Hydrometallurgy 1985, 14(2), 171-188 (abstract only), no month.
J. Indian Chem. Soc. 1985, 62, 707-709, Sep.
J. Anal. Chem. USSR, 1983, 38, 630-635, May.
J. Inorg. Nucl. Chem. 1970, 32, 3667-3672, no month.
Russ. J. Inorg. Chem. 1960, 5, 906 (abstract only), no month.
I.M.M. Bull. 1961, 70, 355 (abstract only), no month.
The Theory & Paractice of Ion Exchange . . . Jul., 1976, Streat, M . . . 1976, 38.1-38.7.
Trans. Instn. Min. Metall . . . 1974, 83 C101-104, no month.
Trans Instn. Min. Metall . . . 1979, 88, C31-C35, no month.
Using Solvent Impregnated Carbon . . . 1985, 7, B. of Mines, no month.
Hydrometallurgy, 1982, 8, 83-94, no month.
J. Chem. Tech. Biotechnol. 1981, 31, 345-350, no month.
Proc. Indian Acad. Sci . . . 1988, 100, 359-361, Oct.
Proc. Indian Acad. Sci . . . 1988, 100, 455-457 (abstract only), no month.
ISCE '86 Int. Solv. Extract. Conf. Preprints, vol. II, 1986, 19-26, Sep.
Hydrometallurgy 1985, 14, 387-393, no month.
Separation Science, 1971, 6, 443-450, Jun.
International Conf. on New Frontiers for Hazardous Waste Mgmt., Sep., 1987.
The Fourth Environ. International Conf. 1983, 856-859, no month.
"Encyclopedia of Chemical Technology", Kirk-Othmer, 8, 727-9, no date.
Water Research 1982, 16, 1113-1118 (Abstract only), no month.
Water Research 1986, 20, 449-452 (Abstract only), no month.
Water Research 1982, 16, 1357-1366 (Abstract only), no month.
Water Research 1981, 15, 275-282, no month.
Chemical and Engineering News, Aug. 26, 1991, pp. 23-44.
N. Meltzer et al., "Pollution Technology Reviews", No. 196, Noyes Data Corp., Park Ridge, NJ, 1990, pp. 373-382, no month.
L. Magos, Br. Med. Bull., 1975, 31, pp. 241-245, no month.
Eng. Mining J., 1970, 171, pp. 107-109, no month.
Chem. Abstr., 1990, 114, 232369c, no month.
Chem. Abstr., 1988, 109, 173955n, no month.
J. Ortega, J. Gutierrez, "Recovery of Valuable Products from Wastes", Ortega et al. ed., no date.
D. Bender, F. Riordan, "Metal Bearing Waste Streams, Minimizing, Recycling and Treatment", M. Meltzer, et al., Noyes Data Corp., Pollution Technology Review, No. 196, Park Ridge, NJ, 1990, pp. 298-303, no month.
Morton Thickiol, Inc., Ven Met Brochure, Ventron Division, 1984, no month.
N. H. Feigenbaum, Ind., Wastes (Chicago), 1977, 23 (Abstract only), no month.
Andersson, A., "On the Determination of Ecologically . . . Heavy Metals in Soils", Swedish J. agric. Res. 6, 1976, pp. 19-25, no month.
Wiklander, L., "Solubility and Uptake of Heavy Metals . . . Soil", Geoderma, 19, 1977, pp. 123-129, no month.
Norvell, W. A., "Comparison of Chelating Agents . . . Soil Materials", Soil Sci. Soc. Am. J., 48, 1984, pp. 1285-1292, no month.
Baghdady, N. H., "Extractability of Cobalt, Copper, Manganese . . . Soils of Different Origin", Acta Agric. Scand. 34, 1984, pp. 339-344, no month.
Seal, K.C., "Determination of lead in composite pigments", Paintindia, 22(10), Oct., 1972, pp. 28-29.
Hankin, L., "Lead Content of Printed Polyethylene Food Bags", Bull. of Environ. Contam. & Tox., (12)6, 1974, pp. 645-648, no month.
Corl, W. E., "Comparison of Microwave Versus . . . Lead in Paint Chips", Spectroscopy, 6(8), 1991, pp. 40-43, Oct.
Rietz et al., "Extractionsverhalten und Bindung von Schwermetallen in Boeden unterschiedlichen Belastungsgrades", Landwirtsch. Forsch., Sonderh., No. 38, 1982, pp. 382-393, no month.
Sauerbeck, et al., "Soil-Chemical Evaluation of Different Extractants for Heavy Metals in Soils", Comm. Eur. Communities, (Rep.) EUR 1983, EUR 8022, Environ. Eff. Org. Inorg. Contam. Sewage Sludge, 1983, pp. 147-160, no month.

Affiliated with

Also associated with

Rating

Process for removing heavy metals from soil does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for removing heavy metals from soil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing heavy metals from soil will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1529614