Document bBKdpOJxXgNgynxMMNM6aameZ

AR226-2145 TO : FBOM: GABY L BEBBICGE B. FinCOl Attachment #-Q sroJECT:C-8 Air Eaissions (and Estimation of Coninunity [apaetj s ^l.t.> (^j -\ instAacllcaotridoinngattoUtDhPe isdeucnisdieorndoesf igCn-8ingin. ternational aeeting held on October Z4,1390. C-8 scrubber Tfohollorewla. tion between C-8 concentration and stack height after scrubbing by DuPont stack nodel is as E:total site fission rate 0.0(0 Lb/h CEG:24-hoiir concentration goat 0.3 ttS/f Ci<:est!iated 24-hour concentration us/sf C,. " 32,000 X 0.060 x(49.2)"-" - 1.04 >0.3 (stack height 49.2ft [ISn]) G>* t 32.000 x 0.060 x(65.6)-l" * 0.598 > 0.3 (slack height 65.6ft [20]) C, 32.000 X 0.060 x(9S.l)-'-" = 0.292 < 0.3 (stack height 35.1ft [23a]) Consequently 95.Kt(Z9t) is required for stack height. Even stack height is 4S.2ft(15), the value of (0.3/fg/ix'). by the calculation of Japanese C<. is 0.153pg/m1 that is aueh less than CEG value Sutton'a paraeter). docestic la* (Bosanquet. Carey and Hal ton'a equation and SJutadcgkinhgefigrchrt DisBFbpeliannf tpslaintuneadtioans, 4i9t.2Ifst(1v5erty) dinifaficccuorldtantoce insitthallthea sneeres9u5l.t1sf.t(29) stack. If above our estiution lethod icn't be accepted by you. the refined exission calculation pertoraancB Till be required of Service Division at Louviers Building, the Air Quality and Hazards Engineering Group of DuPont. Sorry to have troubled you, but tould you ake investigations as follois ? 1.H11 tho calculation nethod based on Japanese domestic la ba accepted by BuPont ? (Befer to altadnent) 2. In case of your nonacceptanco Is tho refined eaiasion calculation practicable ith folloiing data ? If It caa be calculated ilthout the official request procedures fro* MDF to DuPont, please put It Into practice. If It ill bo required the official request procedures, please let He knot the vay to rackqeuicraontthaactre>fii!nhedSeervriiscsaloDnivcisailocnulaotfioAnirpQerufoalnitayneaen.d Hazards Engineering Group to 3.MTA [caaB I] E;C-8 total site fission rate H.-Stack height for alte Mission e:Alr flo rata d:DIstance frow emission point to O.OSO Lb/h 49.2 ft 304.624 fl'/h at 46'C nearest plant boundary 328 ft [case Z] E:C-8 total site fission rate 0.060 Lb/h B:Stack height for sito ealssion 65.f ft 6:Alr flot rate 304.624 ft'/h at 46X; so fe d:DIstance fnr eaisaion point to nearest plant boundary 328 ft o ^ </ s r EID944538 4.0tlier inquiries C-8 scrubber packing C, y/ ^) - Tlie reason to select 1-1/2" PALL-81SG (According to Japanese packing aaniifacturer. PALL-RIHG doesn't perfonii ell.) las it selected by the reason that it is easy to be cleaned in disasseably ? It is considered that both AP and Hoc (or absorption efficiency) ill be advantageous if BEIKEX is used. Isn't it adopted oing to cleaning difficulty ? BEST BEGABDS. 5 R H S; o (-i EID944539