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), 333-87437 (S-3), 333-153086 (S-8), 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 30, 2009, 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 on the
effectiveness 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, 2008.
/s/ BDO
Seidman, LLP
Atlanta,
Georgia
March 30,
2009