薬品類の廃棄物の処理に関する手引書
Contents
1. 80 KEU D A2. 1 1 1 1 4 2
3. KORET D Hg a
4. 10kg z 20 e O OO e O
5. 56 8 59 3 4 11 7 E3 11
6. 15
7. 8 e 2 s MSDS e
8. V 8 E 6 x Hg
9. 10 1 pH pH 1 pH8 100 mg
10. f c Hg 2
11. KCN NaCN K2Cu CN 4 K2Zn CN 4 K3Te CN 6 K4Fe CN 6 A N NI
12. 180 1 5 565 1 4 5 6 1 4 3
13. Be NN se
14. BEE VDA a RR 4 D
15. 2 2 ROA
16. 7 RE 5 PRTR 20 PRTR TROT J KEB OBR PART ERES 57 gt 4
17. 53 6 UA Bl B2 C1 C2 D E A BI B2 Cl C2 D E 3 A B2 A B2 D E B1 C2 7 1 RS 2 3
18. 1 g kg mg MSDS MSDS 5 4 REW RESEDA GEO KER V1 1L10 Microsoft Internet Explorer 5 CE 8 UD AWIW o O WAR Px mE Oats a g 8 30 5 5 F V1 1L10 Microsoft Internet Explorer F CE RW YD O O ha Ar kian r7 Oea BUA
19. AC 20 FETE
20. E 1 6 NAW HABER OAL POCB TOC COD 6
21. w 10 FELL F ORY RAL lt 1 fe BEBE 1 2 Ju 1 2 1 2 5 1 2 3 1
22. ZOW E 30 60mg E 1 a ET Ek Ce LC BIETS TOMEK Y x b
23. 70 4 2 tFn TI SURO CAELD bOIVEBEEIL 72S J Eo RE PCB
24. 56 A 7 1 4 1 0 1 1 2 3 4 7
25. 1 5 B 6 7 ID 24 8 RMA y 9
26. vi vii 1 1 i pl pd i iol i pl pd pl pd ill i po Po 1 1 E
27. A B B LRH B
28. is el oo ETE i a EW JH PCB E PCB 5 t oF
29. lt gt D 1 D 2 CASNo Geely PRTR SoH AYE KE
30. 59 3 3 16
31. U ba RS mA Hg2Cl2g
32. B C Gii ROM 51 2 i Gii iv v A E 3
33. 1 9 10 5 E 11 100mg 10 0 5
34. 2 3 BOD 8 1 45 or D HALTS 2
35. Hg Hg KGB AL S T IAF vy VE Hg Hg JE
36. 1 25m 2 1 III 1 1 MBAS
37. 4 i 4 1 G A B a 60 cm b a b c d ii A
38. 16 3 16 4 a h a hy
39. 2 pEr i H 340mm H H 4 4 TT VEE 1 1 0mm 410mm 1 83mm W EA PA PA Ha THE PAIR Y SNR ON ER BE 1 2 3 4 1 2 3 4 5 Evy 1 4 2 A5
40. 30 A 4 8 1 000t 50t ee 6 30 6 30
41. C 1 PhOH 1 HCH 35 V 1 mg L 18 12 11 Ts F 3 000 n n
42. lt ee 3 KERNS lt gt c onNRTEeNs LE 32 5 6 F V1 1L10 Microsoft Internet Explorer E CE YD AIHW O O AGH Pw kaa Ar 2 Sa DUA enst ID ORR ERVSAOREt OF mM RES Ox mkES
43. 3 2 1 99 99 9 3 5 3 6 10ppb 5 7 10 10
44. Ti 2 III 45 1 II 1 2 2 3 10 3 IIL 1
45. 20 kanazawa u acjp 20 OB 20 20 64 E 64 64 2 CASNo CASNo CASNo HAMO PRTR CASNo
46. gt HR 39 g L 20 15 1 1 1 pees los 0 88 Py
47. 25 20 tie BR a Als oem a k Bo RANS 2 kg tt va lege MEER ae ID 20 12 a CEDO ESN nA 20 RE aE 12 ID
48. 4 WN gt 1 ok j Be 7 3 pH2 16L 1 3 3 pH4
49. http hozen2 epc kanazawa u ac jp II 1 46 ub F4 48 5 J 55 6 56 10
50. FR RR Gl VOL a l 7K B Zz JA 2 3 1 5 10L 80 8L 3 9
51. xi xii pail 60 90
52. 5 REKL LTI TEPP DEP 2 2 2 1 DDVP 2 2 IBP S EDDP S S CRA R 6 1
53. 100C 20 40 21 TAS Im 1 1 1 3 Pow GIKA 21C 70 70C 200 BO AWA 200 41
54. Omn ABS OER RBRVABO SR enst IDEN EE k ESTAN dii SHu k ERAP ORR BRVASBOREL OFN RSS OP HARB Roo MP OF mA Ox mS8ORME Oz nies ORR RRMRES V1 2L10 Microsoft Internet Explorer BA PWD REO ATY BRAVA YMD WIW ae O O HAO Or youn Ar OBE a LA 2 Be 200 Ewe e eeno Namene Choroform See et E GASTON 67 66 3 ESE 2002 5 20 Base 500 mL See 4 52 740 754 eer Sne8hRees PV 511527 5 BENERE 10198 4 IO PASOTSs v EK
55. i Ma 50 FRP bh o Rako lt e DFT ROKR 7 M DAVES FE E
56. NG re RR cs a a Coot eng ree PCB PCB FS Hit FRET ST A te Lf H o EITAN VEREOR OOYE ia 5 1 Be Gi
57. PAC pH5 6 5 1 OBE pH pH T pH8 YEH 100
58. es s es s FR If 3 e V 8 e
59. CAS No 5 1 5 6
60. 1 EAA ALP Ogi ae uss RE E K T ee H12 6 2 H
61. fk 49 13 RH mg L Hg abr FS DARE OAD 69 OPD 10 AF 10 Tamra tes 1 1 ORE OAD gy 1 1 0 5 gt 9 CN 10 10 PCB 0 1 10 1 0 2 20 0 2 4 0 5 1 9 N 0 0 0 0 0 0 0 0 ETA Tp ea 0 0 6 P2 6 SO 0 0 0 vo 1 CO X 0 0D N T BF 6 FT 1 gt Gi ot EDT RREORA Ge os wF owr sugmBgF A VP E 7 TL 1 2 D S x 1 2 N NI NINNIN
62. 3 70C E 10 10 50 CN 70C CN E 80 pH 4 6 EAR 10 20
63. aR e it TTI EBT I AF y 7 Al gt K R lt gt 47 PCB PCB
64. 17 3 2 III IV ee ee ee ee ee ee ee ee es 1 2 3 4 5 6 7 Ya V 1 eo e e gt gt e gt o gt o gt o gt gt o gt o gt o o gt o o o o e e gt o gt e gt gt o o gt o gt o o o o gt o gt o e o o e e e gt o e e gt o gt o gt o gt o gt o e o gt o o o o e e gt e e gt o e gt o gt o gt o gt o gt o gt o o o o tt te eee gt o gt gt o gt e gt o gt gt o gt o gt gt gt o o o o o eo e e gt o e e gt o e gt o gt gt o o gt o gt o e gt o o o o eo e e gt o e e gt o gt o gt o gt gt o o gt o gt gt o o o o o e e e gt o e e e e
65. 22 4 H 5S 5S HH HIH piir AR Lo 1 ROU Go 2 CHS UTHER
66. A i E 23 IV 1 2 1 L AN 2 L AN Internet Explorer 5 0 NetScape 4 7 LI 3
67. T 47 19 SE 70 4 3
68. 12 12 pee 1 D ORS aM ORF 64 64 64 64 64 64 64 26 20
69. p HWE 21 7 1 ARRA e e e s
70. 1 E KE RAG VEVYCA 13 ee 1 2 1 1 1 2 1 1 1 1 1 2 1 3 x ERON III PCB
71. K BRUT AH DC 58 a H 4 K
72. PCB Ee as ees Ew Collection and classification of INORGANIC liquid waste from experimental facilities Group Contents MERCURY and MERCURY Gray 16L Wash the emptied vessel which contained the liquid wastes at least thrice store the washing with the wastes at COMPOUNDS pH lt 2 Inorganic mercury compounds Filter off any precipitate gt Store the precipitate as mercury sludge in other sealed vessel Organic mercury compounds e Organic mercury compounds Decompose organic compounds see note 1 gt 3 organic compounds Acidification Mercury metals and mercury amalgam Add water and store in other sealed vessel ACID CHROMIUM and HEAVY Red 16L Wash the emptied vessel which contained the liquid wastes at least thrice store the washing with the wastes at METALS pH lt 4 Bismuth copper cobalt chromium cadmium Filter off any precipitate Store the precipitate as non mercury sludge in other sealed vessel iron lead manganese nickel silver tin zinc Liquid wastes of less than 5 sulphuric acid o
73. 2 ae RK E Je CSV EXCEL RI x x A x Oha Y 7ee CHA LURERE VY 7 CERI UT 4
74. 5 pH5 9 2 50ppm 10ppb 1ppm 3 pH9 IT 80ppm nm 7 20ppm 8
75. AS Tk YE 17 Ht ORN ik Bene E RAKE OSH FARK O aa PARK CMR QRH 4 CRMPWwAR MEE QL RRHS KiK4I4oRHReK ORE Beko ARM Ce 18 5 pH 7 ZA
76. 31 V1 2L10 Microsoft Internet Explorer E CE RTV D ALI yo gt Ae 1 2 Whrofem oa aee a See E ae Tia lee Base 2 500 mL 1019 8 g SEME 740 BS BZA Ae any MM PEE 100 W E AeA ai 10000 g 3 R 4 g kg mg F V1 2L10 Microsoft Internet Explorer MEO SCADA YD WIW yyh gt 0g ieg P1 95 87 66 3 100 100 2843 vid lt gt
77. AB eal See te ae ECTE AA B 4 1 1124 11124 PhOH A C A DB
78. 3 DEED mince OIA s FOE DIED mie a ee CRIED Oi FN 2 2 sae EEE os odo 10 1 ewan Ss Le Se P a N NOstN Nozio AxN NH prani mewo a fe a n ee aee rel HLL2 O ooe os ooe FIR o T ows os oo EESE T S T E A 36 16 31 mg L trans 1 2 way ar TPN Fao 2 EPN O O 4 CNP 37 MW PKOKE Bialik ORE mg L yE mg L
79. WHA A Vil GR RACKS FRY E AR BR yy 1 Av ele KE LOR inh Se FR FER OWARE ZIE 7 WER
80. O 4 Re hee ee Oars 354 PRTR MSDS P0 P1 81 MSDS P2 MSDS Material Safety Data Sheet ONC REVIERE W felt ASEM BURNED K
81. PAC TID 11 X E p 100mg H ETS
82. EIER 19 xk 5 Hg pH 7 E A LY 2 3 LY LY El
83. 3 Ca F 8 pH6 11 5 L 0 5 pH8 PAC EF VR DD VRE Ke LB ID pH5 6 e pH6 8 4 pH10 11 1 300ppm
84. B C A B C D
85. BE HR ALA ER OALE E HH sr qe HAZ BE SEMEA 4 E BJ Dire 52 FEZ OT MOORE ERR ix viii x H
86. E 80cm ao 2 FR
87. 43 E 3 4 B 0 0005mg 0 005mg L 16 Hg2 HgCL42 F
88. 2 3 1 RA BRAVA YT Me AMET a 2 21 3 1 1 t T 1 0 5 t 14
89. V1_ 1L10 Microsoft Internet Explorer CE REO RTV AIH O O x AO Pwr kaaa Ar OL Sa DU SERA SHE 1469 RSI 10L 61 2003 06 09 W 464 v 2307 1 g 60 Kg 7 50 RI RE 128 QQ pH pH 7 33 6 WF
90. 4 300ppm 200ppm 7600ppm fh E k R1 1
91. lol 3 1 G gt Gi Es Gii iv 50 v din
92. 8 12 5ppm 2 BK pa atin A B R
93. LAL TOR 6 11 3 15 4 16 3 6 POLE 2 1 2 III
94. 0 04ppm 0 06ppm H lt gt K BB lt gt 1 2 1 3 RK
95. E AS ZA boi A A O H Ly Li Z ols 5 FF 0 05 0 0005 0 0005 0 0005 ND f m 0 002 0 002 0 004 0 004 NDS I 0 01 0 01 ND 001 e 0 03 0 01 0 02 H H 0 02 S S pg TEQ g GER pH5 8 6 30 1 EEEL L TOHIR 9 MIAH EPN 38 15 6 1 ERR EDIE IE GA MALE mg L mg kg 0 05 250 0 0005 ND ND F 14 4 1 S02 1 0 04ppm 1 10ppm 1 8 0 10mg m3 1 g m3
96. 4 III 5 5 LEAK 5 a A TORI 5 7 1
97. 3 3 222x155mm E 5 DRI 5 HT Os fs fa EE XN ak Dg Dkr ay aA TN ot oe 2 S S SI 4k 4k a hs 16 Arr Me 1 2 80 210 mm 3 2
98. ii LORE Gii B coe 2 1 i BERR NN as 3 4 G G ii iii EH D ALAY EADE EET S amp E 4 iv v vi vii viii HF
99. 6 WM AAA BRE WUY R 7 8 O 15 4 1 1 10L 160x260x 18L 180x350x
100. 70C 2 83 L pH11 1 2
101. Bt i ax FOLT BERR III
102. 50 kg ise _ 2a OE 8 se e 1 1 Paes _i ROA yaj V F 42 3 4
103. 12 5ppm 10ppb K 5 pH5 9 10ppb 1ppm 5 83 3 0 5
104. CASNo KA Wt 2 aOR Sn 27 I e ERR S beat i 9 8 lt HS Boyt 1 an U D wes gasnee Zaoemenorn pgaeo Rae RR CEMHORA pewa eae i mma EE TE arae ZSRAOEMAE TO eviee A oe 2 aa Sa ess z MeSWHG7UK 5 1 F V1 1L10 Microsoft Internet Explorer DER F RRO RTV
105. d Chloroform d P 1 10025 78 2 Bley robe 57 15 8 Acetonechloroform IV 4 29 V1 2L10 Microsoft Internet Explorer CE REO RTV YD AF ay Os O RAO ws komm Wo O22 a DM PELADO http prtrepckanazawa u ac jp cmsys script Medicine Reeist ReeistB3 asp ChemiCode 5026 GES 2 NHleroform A M D a gt Fa m z SO SE beie Cp EERE 2004 5 0 4 en ees Co sas co os te o o E ooo J mam Po a o gt lt neTeNSLE D SEK TS es 5 oo X gt kin Aas Kix CA aie Sh
106. D YD ANIH O ha Orr kiun Ar O ID hamaima esse ae ID j CAES 28 5 2 V1 1L10 Microsoft Internet Explorer E RRO RTV D Y M AWF O O haa Pex kian Ar OA O2m ABS ORR RRVABO SR ID OZ nO Oise OLF VAP BSE OR ARESEM ES k ERAD ORR REPEZORKEE O nNR FREE OAR ETONE EST Ox mires j 5 3 A V1 2L10 Microsoft Internet Explorer F E ATW BACANA T AvP yop gt By ma brag ast Fat yy 2 5 67 66 3 Chloroform P 1 1 BRD AR Ke ES case 865 49 6
107. gt o gt gt o gt o gt gt o o o o o e e gt o gt o o gt o gt o gt o gt o gt o o gt o o o o ee KARAR o ee ee ee ee BOB SR ee EE EE ER T EE a A Re RS NC PRTR e o o o o o o 10 11 tt ee GB eo o gt e gt o gt o e e gt o gt o gt o gt o gt o ee o o o e e gt o e e gt o o o gt o gt o o o gt o gt e o o e e gt o e e gt o o o gt o gt o o o gt o gt o o 15 16 19 21 22 24 36 37 38 39 40 41 43 45 45 45 46 47 56 58 60 I
108. PhOH DB PhOH PhOH O O g ml O Og PhOH B PhOH 100
109. 9 0 9 5 7 BECAME DY OD AEIR pH9 5 ANTEA L 50 pH7 10 20ppm D
110. Hg CoHgHgNaO2S BNE BAY FDOT SUA LD Ve ay 50ppm III 1 I Mi 0 01 1 4 PCB polychlorobipheny1 PCB PCB 47
111. TF E H13 4 H13 5 H10 WN HI17 1 55 H12 11 H13 4 9 PRTR PRTR Pollutant Release and Transfer Register 11 7 86 MM CAN a Rae ene ate le 2 3 4 MSDS
112. halene chlorine number more than 3 and Hexachlorobenzene they should be carefully stored at the user s laboratory Explosive substances by self decomposition such as polynitrocompounds peroxides etc Highly reactive and dangerous substances such as styrene monomer etc 8 DILUTE AQUEOUS ORGANIC White 8LIWater content should be greater than 80 with pH gt 4 0 8 12 Notes 1 Mi an Liquid waste containing organic mercury compounds Add excess potassium permanganate solution to liquid wastes and heat at 70 C for 2 3 hours to decompose organic compounds reduce excess potassium permanganate with sodium oxalate and treat as inorganic mercury compounds Liquid waste containing hexavalent chromium Cr VD Add reductant sodium hydrogen sulphite etc after acidification with sulphuric acid until the color of liquid waste changes to green store after ensure to achieve a concentration below 50 ppm of chromium Liquid waste containing inorganic fluoride and their compounds Add excess calcium chloride at pH 6 11 allow to stand over 5 hours filter off the precipitate store the filtrates after ensure to achieve a concentration below 0 5 of fluoride Liquid waste containing inorganic phosphate and their compounds Add excess calcium chloride at pH 10 11 allow to stand over night filter off the precipitate store the filtrates after ensure to achieve a concentration below 300 ppm of total phosphorus Liquid
113. ible materials Perchlorate Acetic anhydride bismuth and its Inflammable liquid Ammonium nitrate chromic acid alloys alcohol paper wood hydrogen peroxide nitric acid sodium peroxide and halogen Potassium Ethanol or methanol glacial Sodium azide Acid lead copper mercury silver permanganate acetic acid acetic anhydride benzaldehyde carbon disulphide glycerin ethylene glycol ethyl acetate methyl acetate furfural 11 Collection and classification of ORGANIC liquid waste from experimental facilities WASTE ORGANIC SOLVENTS White 8L Waste solvent with flash point lower than 70 C Hydrocarbons alcohols ketones aldehydes Water content should be below 50 esters weak acids amines gas oil kerosene Waste organic solvents should be free from slightly and non combustible organic solvents and waste oil groups etc Content of compounds having nitrogen such as acetonitrile pyridine amines etc or sulphur such as thiol thiourea etc or organic phosphorus compounds should be less than 10 ORGANIC SOLVENTS SLIGHTLY and NON COMBUSTIBLE White 8LISlishtly and non combustible organic solvents should be free from CN compounds such as acetonitrile etc Chloroform carbon tetrachloride dichloromethane etc 3 WASTE OILS White LIWaste oil with flash point higher than 70 C Machine oils etc Waste oils should be free from CN compounds such as acetonitrile etc Waste oils should be free from slightly and no
114. mg PAC Ek IAT RRAIE Ce HAL iW 6 500ppm pH10 5 6 1 pH8 9 6 pH9 RAg CN 2 RoNi CN 4 R3Cu CN 4 RAu CN 2 RsFe CN 6 R4Fe CN e RasCo CN 6 R KK Na CN 25 L 7 pH5 6 pH
115. n combustible organic solvents SOLUTIONS Aqueous organic acid solutions Dilute aqueous organic solvents alcohols formalin amines etc Ethers diethyl ether tetrahydrofuran dioxane dimethoxyethane etc Collodion Carbon disulphide Aqueous organic solutions containing metals Dilute aqueous organic solutions should be free from non aqueous solvents Content of compounds having nitrogen such as acetonitrile pyridine amines etc or sulphur such as thiol thiourea etc or organic phosphorus compounds or formalin should be less than 10 Ethers should be diluted with over 20 folds of water and mixed with no other waste solvents Collodion content should be less than 1 Convert carbon disulphide to xanthate or dithiocarbamate and dissolve in water Add sodium carbonate or sodium hydroxide to the optimum pH allow to stand and filter off treat precipitate as inorganic sludge treat filtrate as dilute organic aqueous solutions group see note 5 Photographic developer Fixer and developer should be stored in separate containers 5 Photographic fixer White 81 Fixer and developer should be stored in separate containers Do not store in container More than 100 mg of total heavy metals Especially mercury and mercury compounds More than 10 of other inorganic compounds Especially more than 0 5 of fluoride and their inorganic and organic compounds Precipitate and sludge Polychlorinated biphenyls PCB Polychlorinated napht
116. nesium and Idisulphide and halogen organic substances aniline combustible other substances materials inflammable liquid nitromethane Metal potassium or Carbon tetrachloride carbon 1 Mercury e g mercury in manometer dioxide water chlorine calcium hypochloride iodine bromine anhydrous hydrofluoric acid silver compounds Acetylene hydrogen peroxide Chromic acid Acetic acid naphthalene camphor glycerin turpentine oil alcohols oxidizable substances Acetylene oxalic acid tartaric Anhydrous ammonia aqueous or anhydrous acid fulminic acid ammonium __ hydrofluoric acid compounds Acetylene oxalic acid fulminic itri i Acetic acid aniline chromic acid cyanic acid ammonia acid hydrogen sulphide inflammable liquid inflammable gas Ammonia acetylene butadiene Sulphuric acid Potassium chlorate potassium butane methane propane other perchlorate potassium permanganate or kerosene gases hydrogen permanganate of light metals such as sodium carbide turpentine oil sodium and lithium benzene finely ground metal Same as the case of chlorine Hydrocarbon Fluorine bromine chromic acid sodium butane propane Deroxide benzene gasoline turpentine oil and others anhydrous hydrogen silver mercury of compounds hydrogen sulphide Chlorate Ammonium salts various kinds ofICumene Various kinds of acids organic or acids powdered metal sulphur hydroperoxide inorganic finely ground organic substances or combust
117. r hydrochloric acid without harmful compounds could be carefully etc and their salts disposed off after neutralization pH 5 9 Mineral acid waste solutions such as Hexavalent chromium Store the liquid wastes after ensuring the concentration below 50 ppm of Cr VD see hydrochloric acid sulfuric acid nitric acid note 2 Sie Mercury compounds Store the liquid wastes after ensuring the concentration below 10 ppb of mercury Acidification Cyanide and their compounds Store the liquid wastes after ensuring the concentration below 1 ppm of cyanide CYANIDE and ARSENIC Orange 16L Wash the emptied vessel which contained the liquid wastes at least thrice store the washing with the wastes at COMPOUNDS pH gt 9 Cyanide compounds cyanide complex Filter off any precipitate gt Store the precipitate as non mercury sludge in other sealed vessel compounds arsenic selenium compounds Cyanide and their compounds Store the liquid wastes after ensuring the concentration below 80 ppm of cyanide Alkaline condition see note 6 Arsenic and their compounds Store the liquid wastes after ensuring the concentration below 20 ppm of arsenic see note 7 Selenium and their compounds Store the liquid wastes after ensuring the concentration below 12 5 ppm of selenium see note 8 ALKALINE SOLUTIONS Blue 16L Wash the emptied vessel which contained the liquid wastes at least thrice store the washing with the wastes Potassium hyd
118. roxide sodium hydroxide Filter off any precipitate Store the precipitate as non mercury sludge in other sealed vessel sodium carbonate potassium carbonate Liquid wastes of less than 5 sodium hydroxide potassium hydroxide or their salts without harmful compounds ammonium compound alkaline solutions could be carefully disposed off after neutralization pH 5 9 containing heavy metals etc Mercury compounds Store the liquid wastes after ensuring the concentration below 10 ppb of mercury Cyanide and their compounds Store the liquid wastes after ensuring the concentration below 1 ppm of cyanide Do not store in container Over 3 organic compounds contained cheating reagent Decompose organic compounds see note 5 Waterless compounds alkali metals carbide etc and ignitable compounds organic lithium organic aluminum etc Over 0 5 of Inorganic fluoride and over 300 ppm of phosphate see note 3 4 Over 200 ppm of Boron Nitrate nitrite ammonium Over 7 600 ppm of total nitrogen Osmium thallium and beryllium and their compounds they should be carefully stored at the user s laboratory Radioactive wastes 10 Chemicals in danger of exploding in combination A B Chemical A Chemical B Chemical A Chemical B Alkali metals Carbon tetrachloride and other Hydrogen peroxide Copper chromium iron many other powdered aluminum carbon chlorides carbon metals or their salts alcohol acetone or mag
119. waste containing heavy metals containing chelating agents 1 Decompose organic compounds with potassium permanganate see note 1 2 Add sodium carbonate or sodium hydroxide to optimum pH allow to stand and filter off treat the precipitate as inorganic sludge and treat the filtrate as dilute organic aqueous solutions group Liquid waste containing cyanide and their compounds Add sodium hypochlorite solution at pH gt 11 allow to stand for 1 hour and store the waste after ensure to achieve a concentration below 80 ppm of total cyanide If liquid waste was made acidic toxic cyanogen gas would be released To liquid wastes containing non decomposable cyanide complexes such as KAg CN p etc add about 25 folds amounts of iron II sulphate heptahydrate for cyanide adjust to pH 5 6 and allow to stand store at pH 9 0 9 5 after ensure to achieve a concentration below 80 ppm of total cyanide If precipitation occurs filter off the precipitate Liquid waste containing arsenic and their compounds Add calcium hydroxide to over pH 11 allow to stand for over night filter off the precipitate and add the filtrate to about 50 folds amounts of iron II sulphate for arsenic adjust to pH 7 10 allow to stand for over night filter off the precipitate store the filtrate at pH 9 0 9 5 after ensure to achieve a 13 concentration below 20 ppm of arsenic Organic arsenic compounds cacodylic acid etc should be decomposed with oxidizing agent h
120. ydrogen peroxide sodium hypochloride or potassium permanganate and go to above treatment 8 Liquid waste containing selenium and their compounds Add sodium sulphide after acidification with dilute sulphuric acid filter off the precipitate store the filtrate at pH 9 0 9 5 after ensure to achieve a concentration below 12 5 ppm of selenium Organic selenium compounds should be decomposed with oxidizing agent hydrogen peroxide sodium hypochloride or potassium permanganate and go to above treatment 14 3 1 2 3 PCB 3 4 4 E 5
Download Pdf Manuals
Related Search