Method for stabilizing metals in wastewater sludge

Details Method for stabilizing metals in wastewater sludge Method for stabilizing metals in wastewater sludge

1992-03-19

1993-11-09

McCarthy, Neil M.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210751, 210912, 405129, 588252, C02F 1100

Patent

active

052599752

ABSTRACT:
A method for treating the sludge from industrial wastewater streams which contain soluble metals by adding to the sludge an effective amount of a metal complexing agent sufficient to inhibit leaching of the metal from the sludge solids into the environment. The metal complexing agent comprises tolyltriazole.

REFERENCES:
patent: 4264436 (1981-04-01), Shim
patent: 4612125 (1986-09-01), Elfine
patent: 4698162 (1987-10-01), Guilbault et al.
patent: 4744950 (1988-05-01), Hollander

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