Tamil Nadu Pollution Control Board
தமிழ்நாடு மாசு கட்டுப்பாடு வாரியம்

STANDARD OPERATING PROCEDURES (SOPs) ISSUED BY CPCB FOR UTILISATION OF HAZARDOUS WASTES
S.No Name of the SOP SOP Number
1Utilization of ETP sludge generated from wastewater treatment of ceramic industries in manufacturing of Ceramic products 81
2 Recovery of Caffeine from Caffeine Liquor. 80
3 Utilization of Spent Ammonia Liquor (generated during manufacturing of Pesticide products) in manufacturing of Liquor Ammonia.79
4 Utilization of Spent Calcium Hypochlorite (generated during manufacturing of High Strength Nleach Powder) as neutralizing agent in ETP.78
5 Utilization of Spent Aluminum Chloride (generated from manufacturing of CPC Green - 7 and Pigment Phthalocynine Green) as a coagulant in CETP.77
6 Utilisation of ETP sludge of fertilizer industry in manufacturing of Di-Ammonium Phosphate (DAP)NPK Fertiliser76
7 Utilization of Used Oil and Off Specification Products (Shampoo, Detergent & Creams) for Recycling. 75
8 Utilisation of Aluminium dross & its residues for recovery of Aluminium Metal and manufacturing of Aluminium Oxide Briquette.74
9 Utilization of LD/GCP - sludge and blast furnace flue dust for manufacturing of L.D.Sludge Agglomerates.73
10 Utilization of Waste Silicon Carbide Refractory Bricks from Pot Lining Waste generated from Primary Aluminium Smelters.72
11 Utilization of Spent Acid containing HCL (generated as waste pickling liquor from Steel Industries) for regeneration of HCL and production of Ferric Oxide.71
12 Utilization of Resin & Glue waste as a supplementary fuel in Tile Manufacturing Industry.70
13 Utilization of Spent Hydrochloric Acid generation from glass manufacturing industry for manufacturing of Calcium Chloride.69
14 Utilization of waste salts generated from CETPs/ETPs of Textile manufacturing/processing industries for recovery of salts for industrial use.68
15 Utilization of spent hydrochloric acid (generated during manufacturing of Trichloroethylene/Perchloroethylene (or) Chlorinated Paraffin Wax (CPW) for manufacturing of 7 ADCA.67
16 Utilization of spent hydrochloric acid (generated during manufacturing of Chlorinated Paraffin Wax) for manufacturing of Calcium Chloride.66
17 Utilization of spent sulphuric acid generated during manufacturing of Hydrobromic acid (HBr) as resource material for manufacturing of Bromine (liquid) through bittern route.65
18 Utilization of metal and metal bearing wastes for recovery of metal alloys n salts64
19 Utilization of dilute acetic for manufacturing of acetic anhydride63
20 Utilization of ETP Sludge for manufacturing of red oxide and gypsum62
21 Utilisation of brine sludge for manufacturing of bricks61
22 Utilization of Magnesium Chloride in MAP process in CETP60
23 Utilization of ETP sludge as fuel in recovery boiler59
24 Utilisation of Sludge gen from SANF CETP for manufacturing of bricks58
25 Utilisation of ETP sludge generated from Textile Industries to use as a supplementary fuel along with coal in Thermic Fluid Heater (TFH)/Boiler.57
26 Utilisation of Spent Sodium Hypo Chlorite along with fresh/spent caustic solution for manufacturing of Sodium Hypo Chlorite.56
27 Utilisation of Spent TiO2-Nacl Cake generated from process residue/waste containing chloride from the catalyst manufacturing industries for recover of Titanium Dioxide.55
28 Utilization of Aluminium Dross Residues generated from separation of metal from Aluminium dross or Aluminium dross reprocessing units for manufacturing of Alum.54
29 Utilization of Spent Sulphuric Acid generated from dyes & dyes intermediate industries in production of another dyes and dye intermediate products. 53
30 Utilization of Tarry Residue waste & coal Tar Sludge for production of Creosote oils and coal tar pitch. 52
31 Utilization of residue/rejects generated from processing of Aluminium Dross of Aluminium Smelting process for production of synthetic slag.51
32 Utilization of Spent Ammonium Carbonate (generated during manufacturing of Copper Pthalocyanin Blue) in manufacturing of zinc carbonate and copper carbonate. 50
33 Utilization of Spent Acid generated fromDye and Dye Intermediates Industries chemical manufacturing Industries as neutralizing agent in ETP/CETP. 49
34 Utilization of Spent Alkali Bromide and Spent Acidic Bromide generated during manufacturing of various pesticides, pharmaceuticals and organic chemicals for recovery of liquid Bromide. 48
35 Uutilization of Spent Sulphuric Acid generated during manufacturing of 4, 4-Diaminobenzenesulfanilide (DABSA) in manufacturing of Para Amino Benzene Sulphonic acid (PABSA). 47
36 Utilization of Spent liquid GlauberSalt (Generated during para base vinyl sulphone manufacturing process) for Production of Reactive Dye (Reactive Orange 2 R). 46
37 Utilisation of Spent Ammonium Chloride generated during production of Hexamethyl Di Silazane for manufacturing of Ammonium chloride.45
38 Utilisation of Spent Sulphuric Acid generated during manufacturing of G salt for production of R complex Gamma acid.44
39 Utilization of spent Aluminium chloride generated during manufacturing process of Dye and Dye intermediates, pharmaceuticals & pesticide industries in manufacturing of Aluminium hydroxide chloride/Poly Aluminium chloride 43
40 Utilization of Used/Waste Thinner for manufacturing of industrial primer to be used as Automotive paints 42
41 Utilization of Waste Dichromate Solution generated during manufacturing of Ibuprofen for production of Basic Chromium Sulphate.41
42 Utilization of Spent Sulphuric Acid generated during manufacturing of Vinyl Sulphone, for production of H-Acid 40
43 Utilization of Spent Phosphoric Acid generated during manufacturing of Quinacridone Pigment, for production of Dibasic Calcium Phosphate 39
44 Utilization of Spent Sulphuric Acid (generated during manufacturing of 3,5-Dichloro Nitro Benzene) and Spent SodiumThiosulphate.38
45 Utilization of Flue Gas Cleaning Residue generated from Steel Scrap Melting Induction Furnace, for zinc extraction . 37
46 Utilization of Synthetic Oil Based mud / Oil based drill cutting waste in Road construction . 36
47 Utilization of Gasifier Slag containing Nickel & Spent Catalyst containing Molybdenum generated during production of ammonia in nitrogenous fertilizer industry. 35
48 Utilization of Coal Tar and Tarry Residue generated from Coal Gasifier Units. 34
49 Utilization of Spent Sulphuric Acid generated during manufacturing 4, 4-Diamino benzene sulphananilide. 33
50 Utilization of Spent Pot Lining (SPL) generated from Primary Aluminium Smelting Industries. 32
51 Utilization of Tungsten Scrap (Tungsten carbide insert tips) generated from metal cutting operations. 31
52 Captive Utilization of Spent Ion Exchange Resin generated from Demineralization (DM) plant in DRI Kiln of Sponge Iron. 30
53 Utilization of Spent Ion Exchange Resin generated from Demineralization (DM) plant. 29
54 Utilization of Spent Alumina generated from polymerization in swing unit of petrochemical plant 28
55 Utilization of Resin Waste generated during resin impregnation of electrical coils . 27
56 Utilization of Spent Acid containing molybdenum generated during manufacturing of _laments in bulb/lamp Industry. 26
57 Utilization of Spent Carbon (carbon residue) generated from Urea Fertilizer Industry. 25
58 Utilization of ETP sludge generated from pulp and paper industry. 24
59 Uutilization of Phenolic Waste Water generated from coal gasifiercondensate water. 23
60 Utilization of Vanadium Sludge generated from Alumina Refineries. 22
61 Utilization of Spent Sulphuric Acid generated during manufacturing of coal 313 dye using Anthraquinone. 21
62 Utilization of Hydro Fluoro Silicic Acid generated from Single Super Phosphate Fertilizer Industries. 20
63 Utilization of Spent Fixer (Hypo) Solution generated from Photographic/X-Ray Films. 19
64 Revised SOP for Utilization of contaminated barrels /containers drums containing hazardous wastes/chemicals/oil and lubricants. 12
65 (a)Revised SOP for utilization of Spent Solvent for recovery of solvent.

(b)SOP and Checklist of Minimal RequisiteFacilities for utilization of hazardous wastes under Rule 9 of the HOWM Rules, 2016.
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