EXHIBIT 32.2

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,

                       AS ADOPTED PURSUANT TO SECTION 906
                        OF THE SARBANES-OXLEY ACT OF 2002

      In connection with the Annual Report of Perma-Fix  Environmental Services,
Inc.  ("PESI") on Form 10-Q for the  quarter  ended March 31, 2005 as filed with
the Securities and Exchange  Commission on the date hereof (the "Form 10-Q"),  I
Richard T. Kelecy, Chief Financial Officer of the Company,  certify, pursuant to
18 U.S.C.  ss.1350,  as adopted pursuant to ss.906 of the  Sarbanes-Oxley Act of
2002, that:

     (1) The Form 10-Q fully complies with the  requirements of Section 13(a) or
     15(d)  of the  Securities  Exchange  Act  of  1934  (15  U.S.C.  ss.78m  or
     ss.78o(d)); and

     (2) The  information  contained  in the Form 10-Q fairly  presents,  in all
     material respects, the financial condition and results of operations of the
     Company.

Dated: May 9, 2005


/s/ Richard T. Kelecy
- -------------------------
Richard T. Kelecy
Chief Financial Officer

This certification is furnished to the Securities and Exchange Commission solely
for purpose of 18 U.S.C.  ss.1350  subject to the knowledge  standard  contained
therein, and not for any other purpose.