EMPLOYMENT AGREEMENT


     THIS EMPLOYMENT AGREEMENT ("Agreement") is made and entered
into as of the 1st day of October, 1997, by and between PERMA-FIX
ENVIRONMENTAL SERVICES, INC., a Delaware corporation (the
"Company"), and DR. LOUIS F. CENTOFANTI (the "Executive").

                       W I T N E S S E T H:

     WHEREAS, the Company believes that the services, knowledge,
and contributions of the Executive to the Company are of critical
importance to the Company; and

     WHEREAS, the Company wishes to ensure that the Executive will
continue to provide his services, knowledge, and contributions to
the Company.

     NOW, THEREFORE, in consideration of the mutual covenants,
agreements, representations, and warranties set forth in this
Agreement, the Company and the Executive agree as follows:

1.   Term.  Unless sooner terminated pursuant to the terms hereof,
the term of this Agreement shall commence on the date hereof and
terminate three (3) years from the date hereof, subject to
extension by the mutual agreement of the parties (the "Term").

2.   Position and Duties.  

               2.1  Position.  The Company agrees to employ the Executive,
          and the Executive agrees to such employment, as President
          and Chief Executive Officer of the Company, or such other
          position as the Executive indicates in writing as being
          acceptable.  The Executive's authority and duties,
          including, but not limited to hierarchical standing in
          the Company and reporting requirements within the
          Company, shall be substantially similar in all material
          respects with the most significant of those exercised by
          the Executive during the 90-day period immediately
          preceding the date of this Agreement.

               2.2  Location.  The Executive's duties and services shall be
          performed in Atlanta, Georgia or any other office or
          location satisfactory to the Executive.

               2.3  Reasonable Attention.  Excluding any periods of vacation
          and sick leave to which the Executive is entitled, the
          Executive agrees to faithfully perform the duties of his
          office, and to devote reasonable attention and time to
          the business and affairs of the Company, to the extent
          consistent with Section 2.1 above.

               2.4  Other Activities.  It shall not be a violation of this
          Agreement for the Executive to (i) serve on corporate,
          civic or charitable boards or committees, (ii) deliver
          lectures, fulfill speaking engagements or teach at
          educational institutes, (iii) manage personal
          investments, and (iv) participate in other activities, so
          long as such activities do not significantly interfere
          with the performance of the Executive's responsibilities
          as an employee of the Company in accordance with this
          Agreement.  It is expressly understood and agreed that,
          to the extent that any such activities have been
          conducted by the Executive prior to the date of this
          Agreement, the continued conduct of such activities, or
          the conduct of activities similar in nature and scope
          thereto subsequent to the date of this Agreement, shall
          not be deemed to interfere with the performance of the
          Executive's responsibilities to the Company.

3.   Compensation and Benefits.  

               3.1  Annual Base Salary.  The Company shall pay to the
          Executive an annual base salary of One Hundred Ten
          Thousand Dollars ($110,000.00) per year ("Base Salary"),
          payable to the Executive in equal semi-monthly
          installments, less appropriate withholdings and
          deductions in accordance with the Company's customary
          payroll practices, subject to the adjustments listed
          below.

          3.1.1     Cost of Living Adjustment.  Commencing October
                    1, 1998, and annually on each October 1 during
                    the Term of this Agreement, the Base Salary
                    shall be increased so that the Base Salary as
                    increased on October 1 bears the same ratio to
                    the Base Salary of the Executive on the
                    immediately preceding October 1 as the
                    Official Consumer Price Index published by the
                    Bureau of Labor Statistics, United States
                    Department of Labor for Urban Wage Earners and
                    Clerical Workers (1982-1984=100) for All
                    Items, United States City Average ("CPI"), in
                    effect on October 1 bears to the CPI on the
                    immediately preceding October 1, except that
                    no reductions in the Base Salary will be made
                    pursuant to this Section 3.1.1.

                    3.1.2     Board Adjustment.  Notwithstanding the
                    language of Section 3.1.1 above, the Base
                    Salary may be increased from time to time as
                    determined by the Board of Directors of the
                    Company (the "Board"), or the Compensation
                    Committee of the Board, in an amount greater
                    than provided for in Section 3.1.1 above.

               3.2  Bonus.  In addition to payment of the Base Salary, as
          adjusted, the Company may pay to the Executive an annual
          bonus to be determined by the Board or by the
          Compensation Committee of the Board on an annual basis.

               3.3  Benefits.  The Executive shall be entitled to participate
          in all employee benefit plans as are generally made
          available to other employees of the Company, subject to
          the terms and conditions of such benefits and plans and,
          as such benefits and plans may be changed by the Company
          from time to time.  Such benefits in existence as of the
          date hereof are as follows: (i) group medical insurance
          coverage, (ii) group life insurance coverage and (iii)
          certain stock option plans.

               3.4  Expenses.  The Company shall pay directly, or reimburse
          the Executive, for any reasonable and necessary expenses
          and costs incurred by the Executive in connection with,
          or arising out of, the performance of the Executive's
          duties hereunder, provided that such expenses and costs
          shall be paid or reimbursed subject to such rules,
          regulations, and policies of the Company as established
          from time to time by the Company.  In the event the
          Executive incurs legal fees and expenses to enforce this
          Agreement, the Company shall reimburse the Executive such
          fees and expenses in full.

               3.5  Fringe Benefits.  During the term, the Executive shall be
          entitled to all fringe benefits including, but not
          limited to, vacation in accordance with the most
          favorable plans, practices, programs and policies of the
          Company during the 12-month period immediately preceding
          the date of this Agreement, or, if more favorable to the
          Executive, as in effect at any time thereafter with
          respect to other employees of the Company.

4.   Options.

               4.1  Grant of Options and Option Prices.  Subject to the terms
          and conditions of this Section 4, the Company hereby
          grants to the Executive as of the date of this Agreement,
          and according to the terms and conditions hereunder, the
          right, privilege and option to purchase 100,000 shares of
          the Company's common stock, par value $.001 ("Common
          Stock"), at an option price of $2.25 per share ("$2.25
          Option"), 100,000 shares of Common Stock at an option
          price of $2.50 per share ("$2.50 Option"), and 100,000
          shares of Common Stock at an option price of $3.00 per
          share ("$3.00 Option").  Collectively, the $2.25 Option,
          $2.50 Option, and $3.00 Option are referred to herein as
          the "Options."

     4.2  Time of Exercise of Options. 

          4.2.1     $2.25 Option.  Subject to the terms and
                    conditions contained in this Section 4, the
                    $2.25 Option herein granted may be exercised
                    by the Executive, in whole or in part, and
                    from time to time, at any time after the date
                    one year after the date of this Agreement
                    until the expiration of the date ten years
                    after the date of this Agreement. 

          4.2.2     $2.50 Option.  Subject to the terms and
                    conditions contained in this Section 4, the
                    $2.50 Option herein granted may be exercised
                    by the Executive, in whole or in part, and
                    from time to time, at any time after the date
                    two years after the date of this Agreement
                    until the expiration of the date ten years
                    after the date of this Agreement. 

          4.2.3     $3.00 Option.  Subject to the terms and
                    conditions contained in this Section 4, the
                    $3.00 Option herein granted may be exercised
                    by the Executive, in whole or in part, and
                    from time to time, at any time after the date
                    three years after the date of this Agreement
                    until the expiration of the date ten years
                    after the date of this Agreement. 

          4.2.4     Change of Control.  Upon a change in control
                    (as defined below) of the Company, the Options
                    shall become immediately exercisable in full,
                    notwithstanding the vesting schedule provided
                    herein.  A "change in control" shall be deemed
                    to have occurred upon any of the following
                    events: (i) consummation of any of the
                    following transactions: any merger,
                    recapitalization, or other business
                    combination of the Company pursuant to which
                    the Company is the non-surviving corporation,
                    unless the majority of the holders of Common
                    Stock immediately prior to such transaction
                    will own at least fifty-one percent (51%) of
                    the total voting power of the then outstanding
                    securities of the surviving corporation
                    immediately after such transaction; (ii) a
                    transaction in which any person, corporation
                    or other entity (A) shall purchase any Common
                    Stock pursuant to a tender offer or exchange
                    offer, without the prior consent of the Board
                    or (B) shall become after the date of this
                    Agreement the "beneficial owner" (as such term
                    is defined in Rule 13d-3 under the Securities
                    Exchange Act of 1934, as amended) of
                    securities of the Company representing twenty-
                    five percent (25%) or more of the total voting
                    power of the then outstanding securities of
                    the Company; or (iii) if, during any period of
                    two (2) consecutive years, individuals who, at
                    the beginning of such period, constituted the
                    entire Board and any new director whose
                    election by the Board, or nomination for
                    election by the Company's stockholders was
                    approved by a vote of at least two-thirds of
                    the directors then still in office who either
                    were directors at the beginning of the period
                    or whose election or nomination for election
                    by the stockholders was previously so
                    approved, cease for any reason to constitute a
                    majority thereof.

          4.2.5     Acceleration of  Vesting.  The Board may, in
                    its sole discretion, accelerate the vesting of
                    all or any part of the Options and/or waive
                    any limitations or restrictions, if any, for
                    all or any part of the Options.

     4.3  Method of Exercise and Payment of Exercise Price.

          4.3.1     Subject to the terms of this Section 4, the
                    Options granted under this Agreement may be
                    exercised by written notice directed to the
                    Company at its principal place of business
                    setting forth the exact number of shares under
                    each of the $2.25 Option, the $2.50 Option and
                    the $3.00 Option, as applicable, that the
                    Executive is purchasing, which may not exceed
                    the number of shares that the Executive is
                    eligible to purchase under this Agreement, and
                    enclosing with such written notice a certified
                    or cashier's check or cash, or the equivalent
                    thereof acceptable to the Company, in payment
                    of the full option price for the number of
                    shares specified in such written notice and
                    shall comply with such other reasonable
                    requirements as the Board may establish. 
                    Subject to the terms and conditions of this
                    Agreement, the Company shall make delivery of
                    such shares within a reasonable period of time
                    after the giving of such notice.

          4.3.2     The Executive understands that, on the
                    exercise of the Options (or at the time a sale
                    of the stock acquired by such exercise at a
                    profit would no longer subject Executive to
                    suit under Section 16(b) of the Securities
                    Exchange Act of 1934, as amended), the excess
                    of the fair market value of the Common Stock
                    over its option price is taxable remuneration
                    to him subject to federal income tax
                    withholding by the Company.  To facilitate
                    withholding by the Company, if required,
                    Executive hereby agrees that the
                    exercisability of the Options is conditional
                    on Executive agreeing to such arrangements and
                    taking such actions as the Company determines
                    are appropriate to insure that the amount
                    required to be withheld will be available for
                    payment in money by the Company as required
                    withholding.

               4.4  Termination of Options.  The Options granted herein, to
          the extent not theretofore exercised, shall terminate
          forthwith upon the tenth anniversary of the date of this
          Agreement.  Notwithstanding anything herein to the
          contrary, termination of this Agreement for any reason
          whatsoever shall not affect or terminate the Executive's
          rights under Sections 4 and 9.

     4.5  Restrictions.  

                    4.5.1     The Options granted herein are not
                    transferable by Executive, except by will or
                    laws of descent and distribution..

                    4.5.2     Executive shall have no right as a stockholder
                    with respect to any shares covered by the
                    Options until the date of issuance of a stock
                    certificate to him for such shares.  No
                    adjustment shall be made for dividends or
                    other rights for which the record date is
                    prior to the date such stock certificate is
                    issued.

               4.6  Stock Dividends, Reorganizations.  If and to the extent
          that the number of issued shares of Common Stock shall be
          increased or reduced resulting from a subdivision or
          consolidation of shares or the payment of a stock
          dividend or any other increase or decrease in the number
          of such shares of Common Stock of the Company effected
          without receipt of consideration by the Company, the
          number of shares of Common Stock subject to the Options
          and the option price therefor shall be proportionately
          adjusted.

                    If the Company is reorganized or consolidated or merged
          with another corporation, in which the Company is the
          non-surviving corporation, the Executive shall be
          entitled to receive options covering shares of such
          reorganized, consolidated or merged company in the same
          proportion as optioned under this Agreement to Executive
          prior to such reorganization, consolidation or merger, at
          any equivalent price, and subject to the same terms and
          conditions as contained herein.  For purposes of the
          preceding sentence, the excess of the aggregate fair
          market value of the shares subject to the Options
          immediately after the reorganization,  consolidation or
          merger over the aggregate option price of such shares
          shall not be more than the excess of the aggregate fair
          market value of all shares subject to the Options
          immediately before such reorganization, consolidation or
          merger over the aggregate option price of such shares,
          and the new option or assumption of the Options shall not
          give Executive additional benefits which he did not have
          under the Options.

                    The grant of the Options shall not affect in any way the
          right or power of the Company to make adjustments,
          reclassifications, reorganizations or changes of its
          capital or business structure or to merge or to
          consolidate or to dissolve, liquidate or sell, or
          transfer all or any part of its business or assets.

               4.7  Compliance with Law and Approval of Regulatory Bodies. 
          No shares will be issued, or, in the case of treasury
          shares transferred, upon exercise of the Options granted
          hereunder, except in compliance with all applicable
          Federal and State laws and regulations and in compliance
          with rules of stock exchanges on which the Company's
          shares of Common Stock may be listed.


    4.8  Binding Effect and Amendments.  This Agreement shall be
          binding upon the heirs, executors, administrators and
          successors of the parties hereto.  This Agreement may not
          be amended except in writing signed by all of the parties
          hereto.

     4.9  Other Restrictions and Legends.  

          4.9.1     Acquisition for Own Account; Registration.  The
          Executive represents and warrants that if he acquires any
          of the shares under the Options he will acquire such
          shares for his own account and for the purpose of
          investment and not with a view to the sale or
          distribution thereof, except for sales pursuant to an
          effective registration statement under the Securities Act
          of 1933 (the "Act") or pursuant to an exemption from
          registration under the Act.  The Executive understands
          that these shares have not and will not have been
          registered under the Act (the Company being under no
          obligation to effect such registration) and that such
          shares must be held indefinitely unless a subsequent
          disposition thereof is registered under the Act or is
          exempt from registration.  The Executive further
          understands that the exemption from registration afforded
          by Rule 144 under the Act depends upon the satisfaction
          of various conditions and that, if applicable, Rule 144
          affords the basis for sale of such shares only in limited
          amounts.

                    4.9.2     Disposition of Shares.  The Executive
          represents, covenants, and agrees that he will not sell
          or otherwise dispose of the shares acquired under this
          Agreement in the absence of (a) an effective registration
          statement under the Act, (b) an opinion acceptable in
          form and substance to the Company from Executive's
          counsel satisfactory to the Company, or an opinion of
          counsel to the Company, to the effect that no
          registration is required for such disposition, or (c) a
          "no-action" letter from the staff of the Securities &
          Exchange Commission ("SEC") to the effect that such staff
          will not recommend any action to the SEC if such a
          disposition takes place without registration.

                    4.9.3     Restrictive Legend.  The certificates
          representing shares covered by this Agreement  shall upon
          issuance thereof have stamped or imprinted thereon or
          affixed thereto a legend to the following effect:

               THE REGISTERED HOLDER HEREOF HAS ACQUIRED
               THE SHARES REPRESENTED BY THIS
               CERTIFICATE FOR INVESTMENT AND NOT FOR
               RESALE IN CONNECTION WITH A DISTRIBUTION
               THEREOF.  ACCORDINGLY, SUCH SHARES HAVE
               NOT BEEN REGISTERED UNDER THE SECURITIES
               ACT OF 1933 AND MAY NOT BE SOLD,
               TRANSFERRED OR OTHERWISE DISPOSED OF
               EXCEPT PURSUANT TO A CURRENTLY EFFECTIVE
               REGISTRATION STATEMENT UNDER SAID ACT OR
               OTHERWISE IN A TRANSACTION EXEMPT FROM
               THE PROVISIONS OF SECTION 5 OF SAID ACT."

5.   No Offset; Legal Fees and Expenses.  The Company's obligation
to make the payments provided for in this Agreement and otherwise
to perform its obligations hereunder shall not be affected by any
circumstances, including, without limitation, any set-off,
counterclaim, recoupment, defense or other right which the Company
may have against the Executive or others.  In no event shall the
Executive be obligated to seek other employment by way of
mitigation of the amounts payable to the Executive under any of the
provisions of this Agreement.  The Company agrees to pay, to the
full extent permitted by law, all legal fees and expenses which the
Executive may reasonably incur as a result of any contest
(regardless of the outcome thereof) by the Company or others of the
validity or enforceability of, or liability under, any provision of
this Agreement, plus in each case interest, compounded quarterly,
on the total unpaid amount determined to be payable under this
Agreement, such interest to be calculated at a rate equal to the
prime commercial lending rate as published in the Wall Street
Journal from time to time during the period of such nonpayment.

6.   Confidential Information.

               6.1  Confidentiality.  During the term of this Agreement and
          for 12 months following termination of this Agreement,
          the Executive agrees to hold in a fiduciary capacity for
          the benefit of the Company all secret or confidential
          information, knowledge or data ("Confidential
          Information") relating to the Company or any of its
          affiliated companies, and their respective businesses,
          which shall have been obtained by the Executive during
          the Executive's employment by the Company or any of its
          affiliated companies and which shall not be public
          knowledge (other than by acts by the Executive or his
          representatives in violation of this Agreement).  After
          termination of the Executive's employment with the
          Company, the Executive shall not, without the prior
          written consent of the Company, communicate or divulge
          such Confidential Information to anyone other than the
          Company and those designated by it.  In no event shall an
          asserted violation of the provisions of this Section 6
          constitute a basis for deferring or withholding any
          amounts otherwise payable or issuable to the Executive
          under this Agreement.

               6.2  Exceptions.  Notwithstanding the provisions of Sections
          6.1 and 6.3 hereof, the Executive shall not be held
          liable for disclosure of Confidential Information which
          (i) was generally available to the public at the time of
          its disclosure hereunder or becomes generally available
          to the public subsequent to the time of disclosure
          hereunder through means unrelated to the Executive's
          disclosure hereunder; or (ii) is reasonably necessary to
          perform the Executive's duties under this Agreement; or
          (iii) is disclosed with the written approval of the
          Company; or (iv) is required to be disclosed by law or by
          any governmental authority or entity; or (v) is disclosed
          as required by judicial or tribunal action after all
          available legal remedies to maintain the Confidential
          Information in secret shall have been exhausted; or (vi)
          a party can demonstrate was already in its possession
          prior to any disclosure thereof under this Agreement.

               6.3  Equitable Relief.  The Executive agrees that the remedy
          at law for any breach or threatened breach of any
          covenant contained in this Section 6 will be inadequate,
          and that the Company, in addition to such other remedies
          as may be available to it, in law or in equity, shall be
          entitled to injunctive relief without bond or other
          security.

7.   Termination.  

     During the Term of this Agreement, the Executive's employment
and the Agreement may be terminated only for one of the following
reasons:

               7.1  Death.  Subject to Section 4.5.1, this Agreement and the
          Term shall terminate automatically upon the Executive's
          death.

               7.2  Disability.  

                    7.2.1     Definition.  "Disability" of the Executive is
                    defined, for the purposes of this Agreement,
                    as physical or mental disability of the
                    Executive which after a continuous period of
                    at least 180 days is determined to be total
                    and permanent by a physician selected by the
                    Company and acceptable to the Executive or the
                    Executive's legal representative.

                    7.2.2     Application.  The Company may terminate the
                    Agreement and the Term after establishing the
                    Executive's Disability as set forth in Section
                    7.2.1, and by giving written notice of its
                    intention to terminate the Executive's
                    employment with the Company ("Disability
                    Termination Notice").  In such a case, the
                    Executive's employment with the Company and
                    the Term shall terminate effective on the
                    earlier of the otherwise scheduled expiration
                    of the Term pursuant to Section 1 or on the
                    thirtieth (30th) day after receipt of the
                    Disability Termination Notice, provided that
                    the Executive has not resumed full-time
                    performance of his duties under this
                    Agreement.

          7.3  Cause.  The Company may terminate the Agreement and the
          Term for "Cause," which for the purposes of this
          Agreement is defined as (i) the ultimate conviction
          (after all appeals have been decided) of the Executive of
          a felony involving moral turpitude by a federal or state
          court of competent jurisdiction; or (ii) willful, gross
          misconduct or willful, gross neglect of duties by the
          Executive if such has resulted in material damage to the
          Company taken as a whole; provided that, (a) no action or
          failure to act by the Executive will constitute a reason
          for termination if the Executive believed in good faith
          that such action or failure to act was in the Company's
          best interests, and (b) failure of the Executive to
          perform his duties hereunder due to a Disability shall
          not be considered willful, gross misconduct or willful,
          gross neglect of duties for any purpose.

          7.4  Good Reason.  The Executive may terminate the Agreement
          for "Good Reason," which is defined for the purposes of
          this Agreement as (i) the assignment to the Executive of
          any duties inconsistent with the Executive's position
          (including status, offices, titles and reporting
          requirements), authority, duties or responsibilities that
          he has had during the 90 day period immediately preceding
          the date of this Agreement; or (ii) any other action by
          the Company which results in a diminishment in such 
          position, authority, duties or responsibilities, other
          than an insubstantial and inadvertent action which is
          remedied by the Company after receipt of notice thereof
          by the Executive; or (iii) the Company's requiring the
          Executive to be based at any office or location other
          than that at which the Executive is based at the date of
          this Agreement, except for travel reasonably required in
          the performance of the Executive's responsibilities; or
          (iv) any purported termination by the Company of the
          Executive's employment with the Company otherwise than as
          permitted by this Agreement, it being understood that any
          such purported termination shall not be effective for any
          purpose of this Agreement.

8.   Notice of Termination.  

               8.1  By Company.  The Company shall not be deemed to have
          terminated this Agreement pursuant to the terms of
          Section 7 hereof, unless and until there shall have been
          delivered to the Executive a copy of a resolution
          ("Notice of Termination for Cause") duly adopted by the
          affirmative vote of not less than three-fourths of the
          entire Board of Directors of the Company at a meeting of
          the Board called and held for such purpose (after
          reasonable notice to the Executive and an opportunity for
          the Executive, together, with the Executive's counsel, to
          be heard before the Board), finding that in the good
          faith opinion of the Board, the Executive should be
          terminated pursuant to Section 7, and specifying the
          particulars thereof in detail.

               8.2  By Executive.  The Executive shall not be deemed to have
          terminated this Agreement pursuant to the terms of
          Section 7 hereof, unless and until there shall have been
          delivered by the Executive to the Company a "Notice of
          Termination for Good Reason" which shall state the
          specific termination provision relied upon, and
          specifying the particulars thereof in detail.

9.   Company Obligations Upon Termination.  If, during the Term of
this Agreement, the Company shall terminate this Agreement other
than for Cause, or the Executive shall terminate this Agreement for
Good Reason, the Company shall pay to the Executive in a lump sum
in cash on the date of such termination an amount equal to the
amount which would have been paid to Executive under the Agreement
if this Agreement had remained in effect through the Term using the
Base Salary in effect at the time of delivery date of the Notice of
Termination for Cause or the Notice of Termination for Good Reason,
as applicable, and without making any adjustments to Base Salary
pursuant to Section 3.1.1.  Options shall become vested and fully
exercisable for the full ten-year period.

10.  Successors.

               10.1 This Agreement shall inure to the benefit of and be
          enforceable by the Executive and the Executive's legal
          representatives.

               10.2 This Agreement shall inure to the benefit of and be
          binding upon the Company and its successors.


11.  Miscellaneous.

               11.1 Governing Law.  This Agreement shall be governed by and
          construed in accordance with the laws of the State of
          Delaware, without reference to principles of conflict of
          laws.  The captions of this Agreement are not part of the
          provisions hereof and shall have no force or effect. 
          This Agreement may not be amended or modified otherwise
          than by a written agreement executed by the parties
          hereto or their respective successors and legal
          representatives.

               11.2 Notices.  All notices and other communications hereunder
          shall be in writing and shall be given by hand delivery
          to the other party or by registered or certified mail,
          return receipt requested, postage prepaid, addressed as
          follows:

          If to the Executive:
          
                    Dr. Louis F. Centofanti
                    315 Wilderlake Court
                    Atlanta, Georgia  30328

          If to the Company:

                    Perma-Fix Environmental Services, Inc.
                    1940 Northwest 67th Place
                    Gainesville, Florida  32653
                    Attn:     Chief Financial Officer


                    or to such other address as either party shall have
          furnished to the other in writing in accordance herewith. 
          Notice and communications shall be effective when
          actually received by the addressee.

               11.3 Validity.  The invalidity or unenforceability of any
          provision of this Agreement shall not affect the validity
          or enforceability of any other provision of this
          Agreement.

               11.4 Entire Agreement.  This Agreement constitutes the entire
          agreement among the parties with respect to the subject
          matter hereof and supersedes any and all prior or
          contemporaneous oral and prior written agreements and
          understandings.  There are no oral promises, conditions,
          representations, understandings, interpretations or terms
          of any kind as conditions or inducements to the execution
          hereof or in effect among the parties.  This Agreement
          may not be amended, and no provision hereof shall be
          waived, except by a writing signed by all the parties to
          this Agreement, or, in the case of a waiver, by the party
          waiving compliance therewith, which states that it is
          intended to amend or waive a provision of this Agreement. 
          Any waiver of any rights or failure to act in a specific
          instance shall relate only to such instance and shall not
          be construed as an agreement to waive any rights or
          failure to act in any other instance, whether or not
          similar.

               11.5 Modification.  Should any provision of this Agreement be
          unenforceable or prohibited by an applicable law, this
          Agreement shall be considered divisible as to such
          provision which shall be inoperative, and the remainder
          of this Agreement shall be valid and binding as though
          such provision were not included herein.

               11.6 Counterparts.  This Agreement may be executed in two or
          more counterparts with the same effect as if the
          signatures to all such counterparts were upon the same
          instrument, and all such counterparts shall constitute
          but one instrument.

               11.7 Headings.  All headings in this Agreement are for
          convenience only and are not intended to affect the
          meaning of any provision hereof.

          IN WITNESS WHEREOF, the Executive has hereunto set his
hand and, pursuant to the authorization from its Board of
Directors, the Company has caused these presents to be executed in
its name on its behalf, all as of the day and year first above
written.


                                   "EXECUTIVE"



                                   _______________________________
                                   Dr. Louis F. Centofanti





                                   "COMPANY"

                                   PERMA-FIX ENVIRONMENTAL
                                   SERVICES, INC.



                                   By:  __________________________
                                   Title ________________________






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