Sludge fixation and stabilization

Details Sludge fixation and stabilization Sludge fixation and stabilization

1980-07-17

1982-08-03

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

106109, 106118, 106DIG1, 106900, 405128, C01B 1700, B09B 100, C04B 1100, C04B 100

Patent

active

043427324

ABSTRACT:
The physical and chemical fixation and stabilization of waste products from a sulfur-fuel burning unit through controlled crystallization of dissolved calcium sulfite. A low pH calcium sulfite solution is added to the waste containing aqueous sludge produced by a gas desulfurization unit thereby raising the pH of the calcium sulfite to crystalize the calcium sulfite and bind and encapsulate the waste products into a solid mass.

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patent: 4084381 (1978-04-01), Cain et al.
patent: 4108677 (1978-08-01), Valisa
patent: 4134774 (1979-01-01), Heese et al.

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