Textile Manufacturing Industry Overview Not all textile manufacturing industries produce hazardous waste. If, however, you use hazardous solvents and materials containing toxic chemicals, you might be subject to Resource Conservation and Recovery Act (RCRA) requirements covering the generation, transportation, and management of hazardous waste. . The following textile manufacturing industry segments are covered by this summary: . . • Broad woven fabric mills and wool mills, including dyeing and finishing , . ' • • Knitting mills and knit goods finishing • Other dyeing and finishing textile mills • Floor covering mills, including dyeing and finishing. Hazardous Wastes from Textile Manufacturing Most of the hazardous waste generated by textile manufacturers results from the use of solvents. Solvents are used in the dry- cleaning of synthetic fiber knit fabrics and woven and wool fab- ' rics; in specialty operations such as tricot and lace splitting or solvent scouring; in dyeing operations; and in some finishing op- erations for impregnation or coating of textile fibers. In addition, solvents are used to clean machinery such as rollers and spinning machines used in textile manufacturing. Spent solvents are listed hazardous wastes. In addition, tetrachloroethylene, trichloroethy- lene, benzene, and ethylene dichloride are included in the recently expanded Toxicity Characteristic. Insecticides and disinfectants also sometimes contain Toxicity Characteristic chemicals such as cresols, chloroform, and carbon tetrachloride. Wastewaters or other process wastes containing these chemicals are hazardous if they fail the Toxicity Characteristic Leaching Procedure (TCLP) test. Table 1 lists general processes/operations that use hazardous materials and that might result in the generation of hazardous waste. If you generate 100 kilograms (220 pounds or about half of a 55-gallon drum) or more of hazardous waste per month, you must fill out a Uniform Hazardous Waste Manifest when you ship the hazardous waste off your property. The Manifest requires the proper Department of Transportation (DOT) description for each waste. Table 2 lists proper DOT shipping descriptions for a number of wastes that are potentially generated during textile mill operations. Table 1 and Table 2 are not comprehensive lists. If you suspect that you generate a waste that is not included in this summary, contact your state hazardous waste management agency or EPA Regional office for assistance. > Waste Minimization An effective waste minimization program can reduce the costs, liabilities, and regulatory burdens of hazardous waste manage- ment, while potentially enhancing efficiency, product quality, and community relations. Waste minimization techniques that can help you reduce the amount of hazardous waste that you generate include: • Production planning and sequencing • Process/equipment adjustment or modification - *' • Raw material substitution • Loss prevention and housekeeping . . «Waste segregation and separation • Recycling. Training and supervision of employees implementing waste minimization techniques is an important part of your successful program. Call the RCRA/Superfund Hotline toll-free at 800-424- 9346 (or TDD 800-553-7672 for the hearing-impaired) for waste minimization information and publications. Table 1 Typical Textile Manufacturing Operations: Materials Used and Hazardous Wastes that Might be Generated Process/ Operation Wool Scouring Materials Used Disinfectants, insecticides, solvents General Types of Waste Generated Spent solvents Toxic wastes Fabric and Floorcovering Finishing Stock and Yarn Processing, Dyeing, and Finishing Dyes, solvents, lacquers, bleaches, finishing agents, adhesives Solvents, dyes Spent solvents Toxic wastes Wastewaters and wastewater treatment sludges with toxic constituents Spent solvents Toxic wastes . EPA/530-SW-90-027e Printed on recycled paper • ------- Waste Type Table 2 Textile Manufacturing Waste Descriptions1 Designations/Trade Names DOT Shipping Name Hazard Class UN/NA ID Number WASTE SOLVENTS, SOLVENT STILL Tctrachlorocthylcne* Trkhlocoethylene* Mcthylcnc Chloride 1,1,1-Trichlorocthanc Chlorobcnzene* Toluene Benzene*. Xylenc Ethylenc Bichloride* Varsol White Spirits Mineral Spirits OTHER WASTES Ignltable Wastes, NOS< HuMKlous Waste, NOS BOTTOMS AND OTHER TOXIC WASTES CONTAINING: Waste Tetrachloroethylene or Perchloroethylene Waste Trichloroethylene Waste Dichloromethane or Methylene chloride Waste 1,1,1-Trichloroethane Waste Chlorobenzene Waste Toluene or Toluol Waste Benzene or Benzol Waste Xylene (xylol) Waste Ethylene Dichloride Waste Naphtha ORM-A ORM-A ORM-A ORM-A Flammable Liquid2 Flammable Liquid Flammable Liquid Flammable Liquid Flammable Liquid Flammable Liquid3 Combustible Liquid UN 1897 UN17IO UN 1593 UN2831 UNI 134 UN1294 UNI 115 UN1307 UNI 184 UN1256 UN1256 Waste Flammable Liquid, NOS Waste Combustible Liquid, NOS Waste Flammable Solid, NOS Hazardous Waste, Liquid or Solid, NOS Flammable Liquid UN1993 Combustible Liquid NA1993 Flammable Solid UN1325 ORM-E UN9189 * Toxicity Characteristic constituent. Any waste that results in a TCLP leachate containing a Toxicity Characteristic constitutent equal to or above regulatory levels is hazardous. 1 These descriptions may change given variations in waste characteristics or conditions. Note that the DOT shipping name, hazard class, and UN/NA ID number do not directly correspond to RCRA hazardous waste categories. 2 A flammable liquid has a flash point less than 100°F. 3 A combustible liquid has a flash point between 100°F and 200°F. 4 NOS - not otherwise specified. For further information call the RCRA/Superfund Hotline 1-800-424-9346 ------- |