INDEPENDENT AUDITOR'S CONSENT


We consent to the incorporation by reference in this Amendment No. 2 to the
Registration Statement No. 333-65290 of Covanta Energy Corporation (formerly
Ogden Corporation) (the "Company"), on Form S-3 of our report dated March 27,
2001 (which report expresses an unqualified opinion and includes an explanatory
paragraph relating to the Company's change in method of accounting for the costs
of start-up activities in 1999) appearing in the Annual Report on Form 10-K of
the Company for the year ended December 31, 2000 and to the reference to us
under the heading "Experts" in the Prospectus, which is part of such
Registration Statement.



DELOITTE & TOUCHE LLP
Parsippany, NJ


November 21, 2001