TREATMENT AND CONDITIONING OF DISMANTLED MATERIAL AND OPERATION WASTE IN EWN OVERVIEW. Rohde, Mathias

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1 TREATMENT AND CONDITIONING OF DISMANTLED MATERIAL AND OPERATION WASTE IN EWN OVERVIEW Rohde, Mathias

2 Content 1. Types of radioactive residuals 2. Treatment and conditioning facilities 3. Storage of radioactive residuals Seite 2

3 1. Types of radioactive residuals Seite 3

4 low and intermediate level active resins from the controlled area resin-sludge mixtures from the controlled area liquid evaporator concentrate low active resins from the turbine hall low active sludge from the monitored area mixed solid radioactive waste waste oil from the controlled area filter material (filter pads) stainless steel Types of radioactive residuals Seite 4

5 carbon steel insulation material cable electrical motor non-ferrous metal Types of radioactive residuals Seite 5

6 2. Treatment and conditioning facilities Seite 6

7 Different treatment and conditioning facilities for radioactive waste and dismantled material are located in the units 1 5 Warm Workshop Interim Storage North (ISN). Treatment and conditioning facilities Seite 7

8 Treatment and conditioning facilities units 1-5 Seite 8

9 units 1-5 available installations from the operation phase new installations in the dismantling phase facility for drying of resins rotation thin film evaporator conditioning station drum drying facility low and intermediate level active resins solid evaporator concentrates solid mixed waste, filter pads drying of all types of waste drum drying facility drum drying facility drum drying facility Interim Storage North Treatment and conditioning facilities units 1-5 Seite 9

10 low- and intermediate active resins storage vessel for resins: 40 m³ rinsing vessel: 3.5 m³ recirculation water pump: 12 m³/h 10 bar pump sump vessel: 12 m³ Treatment and conditioning facilities units 1-5 Drum filling station - drying of resins Seite 10

11 low- and intermediate active resins storage vessel for resins: 40 m³ rinsing vessel: 3.5 m³ recirculation water pump: 12 m³/h 10 bar pump sump vessel: 12 m³ Treatment and conditioning facilities units 1-5 Drum filling station - drying of resins Seite 11

12 Treatment and conditioning facilities units 1-5 Drum filling station - drying of resins/animation graphics Seite 12

13 amount of conditioned resin between: approx.: this corresponds to approx.: with a net weight in average of: ambient dose rate (0.1 m): 350 Mg l-drums 140 kg < 5.0 msv/h Treatment and conditioning facilities units 1-5 Drum filling station - drying of resins Seite 13

14 throughput: evaporator concentrate - liquid part kg/h heading condensate heading steam compressed-air evaporator concentrate - solid part kg/h ~ storage tank ~ ~ Rotation thin film evaporator liquid evaporator concentrate clean condensate intermediate cooling circuit waste air collector ~ vapour condenser heating steam: ~ dosing pump pressure: 0,4 1 MPa ~ primary container temperature: C driving rotor: 5.5 kw Treatment and conditioning facilities units 1-5 Rotation thin film evaporator (RDVA) Seite 14

throughput: evaporator concentrate - liquid part 250 450 kg/h evaporator concentrate - solid part 50 90 kg/h heating steam: pressure: 0,4 1

15 throughput: evaporator concentrate - liquid part kg/h evaporator concentrate - solid part kg/h heating steam: pressure: 0,4 1 MPa temperature: C driving rotor: 5.5 kw Treatment and conditioning facilities units 1-5 Rotation thin film evaporator (RDVA) Seite 15

throughput: evaporator concentrate - liquid part 250 450 kg/h drive rotor evaporator concentrate - solid part 50 90 kg/h heating steam wiper blade heating steam: liquid evaporator

16 throughput: evaporator concentrate - liquid part kg/h drive rotor evaporator concentrate - solid part kg/h heating steam wiper blade heating steam: liquid evaporator concentrate pressure: 0,4 1 MPa temperature: C drum driving rotor: 5.5 kw Treatment and conditioning facilities units 1-5 Rotation thin film evaporator (RDVA)/animation graphics Seite 16

17 amount of conditioned evaporator concentrate (Greifswald) between: approx.: this corresponds to approx.: with a net weight in average of: ambient dose rate (0.1 m): 435 Mg l-drums kg msv/h Treatment and conditioning facilities units 1-5 Rotation thin film evaporator (RDVA) Seite 17

18 amount of conditioned evaporator concentrate (Rheinsberg) between: approx.: this corresponds to approx.: with a net weight in average of: ambient dose rate (0.1 m): 48 Mg l-drums kg msv/h Treatment and conditioning facilities units 1-5 Rotation thin film evaporator (RDVA) Seite 18

19 max. 12 drums a 500 kg max. temperature 190 C air recirculation system gas- and fire-alarm system Treatment and conditioning facilities units 1-5 Drum drying facility (Room S306 of common Special Building) Seite 19

20 max. 12 drums a 500 kg max. temperature 190 C air recirculation system gas- and fire-alarm system Treatment and conditioning facilities units 1-5 Drum drying facility (Room S306 of common Special Building) Seite 20

21 animation graphics by-pass electrical heater Ex CO condenser by-pass CO l drum 200-l drum 200-l drum 200-l drum electric motor door drive condensate tank 100-l Treatment and conditioning facilities units 1-5 Drum drying facility (Room S306 of common Special Building) Seite 21

22 amount of the dried drums between: approx.: this corresponds to approx.: with a net weight in average of: ambient dose rate (0.1 m): 89 Mg l-drums 100 kg < 5.0 msv/h Treatment and conditioning facilities units 1-5 Drum drying facility (Room S306 of common Special Building) Seite 22

23 usable heigth 8m length 54m width 38m Treatment and conditioning facilities units 1-5 Weatherproof construction Seite 23

24 Task: Emptying of all rooms Cleaning after emptying Storage of the conditioned waste in the ISN Problems: Invisible inventory was partly unknown No information about - mass - volume - kind of material - dose rate - activity - humidity Impossible to remove the waste under free sky Result: - Weatherproof construction - Caisson inside Treatment and conditioning facilities units 1-5 Special Building 1 Seite 24

25 Treatment and conditioning facilities units 1-5 Weatherproof construction Seite 25

26 Treatment and conditioning facilities units 1-5 Weatherproof construction/caisson Seite 26

27 Treatment and conditioning facilities units 1-5 Weatherproof construction/caisson Seite 27

28 Treatment and conditioning facilities units 1-5 Weatherproof construction/caisson Seite 28

29 Treatment and conditioning facilities units 1-5 Weatherproof construction/caisson Seite 29

30 Treatment and conditioning facilities units 1-5 Weatherproof construction/caisson Seite 30

31 Treatment and conditioning facilities units 1-5 Weatherproof construction/caisson Seite 31

32 Treatment and conditioning facilities units 1-5 Weatherproof construction/caisson Seite 32

33 Treatment and conditioning facilities units 1-5 Weatherproof construction Seite 33

34 amount of the removed residuals: between: approx.: this corresponds to approx.: with a net weight in average of: ambient dose rate (0.1 m): 150 Mg press drums 30 kg < msv/h After the compaction of the press drums in the high pressure compactor, we had approx l-drums with pellets. this means: in average we have 6.7 press drums in one 200-l-drum volume reduction of 6.7 times between we dried off l-drums Treatment and conditioning facilities units 1-5 Weatherproof construction Seite 34

35 Treatment and conditioning facilities Warm Workshop Seite 35

36 Treatment and conditioning facilities Warm Workshop Seite 36

37 length x width x height: 7.0 m x 4.0 m x 4.5 m compressor for high-pressure water jet up to 2000 bar air exhaust and filtration system water treatment system material transport via roof or doors 1t - bridge crane decontamination cabin with high-pressure water jet procedure turntable Treatment and conditioning facilities Warm Workshop Decontamination Seite 37

38 conventional working safety: overall, mask, helmet, shoes one colleague outside of cabin decontamination cabin with high-pressure water jet procedure Treatment and conditioning facilities Warm Workshop Decontamination Seite 38

39 cabin dimensions working area: 2 x 13 m² height: pressure of jet: 2.5 m max. 10 bar air exhaust and filtration system gravel recycling system decontamination cabin for abrasive decontamination with steel gravel Treatment and conditioning facilities Warm Workshop Decontamination Seite 39

40 2 decontamination bath with a volume of 4m³ chemical decontamination with phosphoric acid Treatment and conditioning facilities Warm Workshop Decontamination Seite 40

2 electrolytic bath with a volume of approx. 2 m³ 1 rectifier with a power of 2.000 A 1 rectifier with a power of 1.

41 2 electrolytic bath with a volume of approx. 2 m³ 1 rectifier with a power of A 1 rectifier with a power of A electrolytic decontamination with oxalic acid Treatment and conditioning facilities Warm Workshop Decontamination Seite 41

42 Treatment and conditioning facilities Warm Workshop Seite 42

43 length x width x height: 7.0 m x 4.0 m x 4.5 m air exhaust and filtration system material transport via roof or doors 1t - bridge crane cutting table cutting tools - plasma cutting for stainless steel - autogenous cutting for carbon steel thermal cutting box Treatment and conditioning facilities Warm Workshop Cutting Seite 43

44 cutting range: up to 300 mm cutting gases: oxygen and acetylene thermal cutting box autogenous flame cutting of carbon steel Treatment and conditioning facilities Warm Workshop Cutting Seite 44

45 shear force (hydraulic): 183 t cutting range for carbon and stainless steel: round bar square steel bar up to 76 mm up to 70 mm hydraulic shears, type JMC 640 Treatment and conditioning facilities Warm Workshop Cutting Seite 45

46 cutting range: height width up to 600 mm up to 360 mm horizontal cutting band saw Behringer, type HBP 360 Treatment and conditioning facilities Warm Workshop Cutting Seite 46

cutting range: height width feed rate up to 2.450 mm up to 2.

47 cutting range: height width feed rate up to mm up to mm mm/min vertical cutting band saw PEHAKA, type LBS 1200/2400 Treatment and conditioning facilities Warm Workshop Cutting Seite 47

cutting range: height width feed rate up to 2.050 mm up to 1.

48 cutting range: height width feed rate up to mm up to mm mm/min vertical cutting band saw PEHAKA, type LBS 1600/2000 Treatment and conditioning facilities Warm Workshop Cutting Seite 48

49 cutting range: height width up to 800 mm up to 650 mm horizontal cutting band saw Behringer, type HBP 650 Treatment and conditioning facilities Warm Workshop Cutting Seite 49

50 Treatment and conditioning facilities Warm Workshop Seite 50

51 cutting speed: peeling range: 44 m/min 1.5 mm to 90 mm cable diameter cable-peeling facility, type PR II Treatment and conditioning facilities Warm Workshop Peeling of cable - removal of insulating material Seite 51

52 Treatment and conditioning facilities Interim Storage North Seite 52

53 Treatment and conditioning facilities Interim Storage North Cross section Seite 53

54 Interim Storage North Evaporator High pressure compactor FAKIR Drum drying facility PETRA Thermal cutting box Scrap shear MARS Band saw conditioning raw water of ISN compaction of 200-l-drums, press-drums drying/ post drying of all waste types thermal cutting of components cutting of metallic waste cutting of large components RDVA with tank container drying facility planned: In-drumdrying-facility filter pads/ insulations wool mixed waste pipes valves metallic sheets pipes steam generators emergency flooding tanks metals (sheets) vessels sectional steel storage Interim Storage North Treatment and conditioning facilities Interim Storage North Seite 54

vessels: 2 x a 10 m³ throughput (gross): 1 m³/h Treatment and

55 conditioning waste water of the Interim Storage North waste water vessels: 3 x a 25 m³ distillate vessels: 3 x a 25 m³ concentrate vessels: 2 x a 10 m³ throughput (gross): 1 m³/h Treatment and conditioning facilities Interim Storage North Evaporator facility Seite 55

packing in: - 180-l-drums - 200-l-drums Treatment and conditioning

56 compaction of solid waste pressure force: 12 MN (1200 t) length of compaction chamber: diameter of compaction channel: 905 mm 540 mm packing in: l-drums l-drums Treatment and conditioning facilities Interim Storage North High pressure compactor (FAKIR) Seite 56

57 Treatment and conditioning facilities Interim Storage North High pressure compactor (FAKIR)/animation graphics Seite 57

2 heating chambers: pressure in the drums: 2 x 8 drums approx. 0.

58 2 heating chambers: pressure in the drums: 2 x 8 drums approx bar temperature between: C Treatment and conditioning facilities Interim Storage North Drum drying facility (PETRA) Seite 58

Sort of waste: pellet mixed waste resin sludge

heating chamber Cooling unit connected with the

and conditioning facilities Interim Storage North

59 Sort of waste: pellet mixed waste resin sludge exhaust ventilation system of the ISN Vacuum unit heating chamber Cooling unit connected with the cooling system of the ISN Condensate Treatment and conditioning facilities Interim Storage North Drum drying facility (PETRA)/animation graphics Seite 59

cutting tools plasma cutting for stainless steel autogenous cutting for carbon

60 thermal cutting of components dimension of box: 10 m x 7 m x 4 m - separate ventilation system - material transport via roof or door - cutting table - cutting tools plasma cutting for stainless steel autogenous cutting for carbon steel Treatment and conditioning facilities Interim Storage North Thermal cutting box Seite 60

cutting of metallic waste cutting power: 700 kn (70 t) shear blade opening: 650 mm cuts per minute: 4-7 dimension of the filling box: length width height 6.000 mm 2.000 mm 1.

61 cutting of metallic waste cutting power: 700 kn (70 t) shear blade opening: 650 mm cuts per minute: 4-7 dimension of the filling box: length width height mm mm mm cutting examples: square ends metal sheets shafts up to 120 mm up to 80 mm up to 130 mm Treatment and conditioning facilities Interim Storage North Scrap shear (MARS) Seite 61

cutting of large components speed: max. feed rate: width of cut: height of cut: depth of cut: cutting force: 15 80 m/min 0.3 m/min max. 4.000 mm max.

62 cutting of large components speed: max. feed rate: width of cut: height of cut: depth of cut: cutting force: m/min 0.3 m/min max mm max mm max. 800 mm 300 to 1500 N cut direction: horizontal and vertical Treatment and conditioning facilities Interim Storage North Band saw Seite 62

63 Treatment and conditioning facilities Interim Storage North Band saw/animation graphics Seite 63

64 Throughput of the treatment and conditioning facilities in the ISN between autumn 1998 till February 2009 high pressure compactor (FAKIR): drum drying facility (PETRA): scrap shear (MARS): band saw: Mg 691 Mg Mg Mg Treatment and conditioning facilities Interim Storage North Seite 64

65 3. Storage of radioactive residuals Seite 65

66 storage of spent fuel interim and decay storage of radioactive Material storage area: m² dimension: L. 240 m x W. 140 m x H. 18 m halls 1-7: radioactive material 20 -containers concrete containers steel containers casks (cast iron) large components hall 8: spent fuel in CASTOR casks Storage of radioactive residuals Cross section Seite 66

67 Storage of radioactive residuals Interim Storage North hall 1 and 2 Seite 67

68 Storage of radioactive residuals Interim Storage North hall 7 Seite 68

69 Feb 09 Mar 09 Apr 09 May 09 Jun 09 Jul 09 Aug 09 Sep 09 Oct 09 Nov 09 Dec 09 Jan 09 Feb 09 Occupied volume [m³] Capacity utilization rate [%] ,00 50, , , , ,00 0 0,00 Storage of radioactive residuals Capacity utilization rate of storage halls 1-7 in the ISN (status: ) Seite 69

EMPTYING, DISMANTLING AND DEMOLITION OF RADIOACTIVE WASTE DISPOSAL "ALFR" ON SITE OF NPP RHEINSBERG

EMPTYING, DISMANTLING AND DEMOLITION OF RADIOACTIVE WASTE DISPOSAL "ALFR" ON SITE OF NPP RHEINSBERG ABSTRACT F. Krause, M. Schönherr Energiewerke Nord GmbH (EWN) Kernkraftwerk Rheinsberg D-16831 Rheinsberg