EXHIBIT
23.1
CONSENT
OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
Perma-Fix
Environmental Services, Inc.
Atlanta,
Georgia
We
hereby
consent to the incorporation by reference in the Registration Statements on
Forms S-3 and S-8, File Numbers 333-115061 (S-3), 333-85118 (S-3), 333-14513
(S-3), 333-43149 (S-3), 333-70676 (S-3), 333-124668 (S-8), 333-110995 (S-8),
333-80580 (S-8), 333-3664 (S-8), 333-17899 (S-8), 333- 25835 (S-8), and
333-76024 (S-8) of Perma-Fix Environmental Services, Inc. (the “Company”) and
subsidiaries of our reports dated March 31, 2008, relating to the consolidated
financial statements and financial statement schedule, and the effectiveness
of
the Company's internal control over financial reporting, which appear
in this Form 10-K. Our report relating to the consolidated financial
statements and financial statements schedule contains an explanatory
paragraph regarding the Company’s ability to continue as a going concern. Our
report on the effectivenss of internal control over financial reporting
expresses an adverse opinion on the effectiveness of the Company's internal
control over financial reporting as of December 31, 2007.
/s/
BDO
Seidman, LLP
Atlanta,
Georgia
March
31,
2008