Page 670 - Radiation Safety
P. 670

NORM/TENORM








                                                                                              Example:


                                                                                                      Ship TANKER SLUDGE
                                                          NORM
                                                                                                      Ra-226 < 0.006 Bq/g                    (Original activity)

                                                                                                      Ra-228 < 0.004 Bq/g






                                                TECHNOLOGICAL


                                                        PROCESS



                                                                            INCINERATION








                                                                                                         SLUDGE ASH
                                                         TENORM
                                                                                                         Ra-226 = 0.12 Bq/g (Activity became


                                                                                                         Ra-228 = 0.15 Bq/g concentrated)
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