Process Wastewater

{
  "id": "MLC-T-ENV-022316",
  "term": "Process Wastewater",
  "field": "Environment",
  "definition": "1. Any water which, during manufacturing or processing, comes into direct contact with, or results from the production or use of any raw material, intermediate product, finished product, byproduct, or waste product.\n\n2. Any water that comes into contact with any raw material, product, byproduct, or waste.\n\n3. Any water that, during manufacturing or processing, comes into contact with or results from the production or use of any raw material, intermediate product, finished product, byproduct, or waste product.\n\n4. Any water which, during manufacturing or processing, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, byproduct, or waste product. [40 CFR 122.2 (CFR 2013)]\n\n5. Water which comes in contact with benzene or butadiene during manufacturing or processing operations conducted within an ethylene production unit. Process wastewater is not organic wastes, process fluids, product tank drawdown, cooling water blowdown, steam trap condensate, or landfill leachate. Process wastewater includes direct-contact cooling water.\n\n6. Wastewater which, during manufacturing or processing, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product. Examples are product tank drawdown or feed tank drawdown, water formed during a chemical reaction or used as a reactant, water used to wash impurities from organic products or reactants, equipment washes between batches in a batch process, water used to cool or quench organic vapor streams through direct contact, and condensed steam from jet ejector systems pulling vacuum on vessels containing organics.\n\n7. Wastewater which, during manufacturing or processing, comes into direct contact with, or results from, the production or use of any raw material, intermediate product, finished product, by-product, or waste product. Examples include: product tank drawdown or feed tank drawdown; water formed during a chemical reaction or used as a reactant; water used to wash impurities from organic products or reactants; water used to clean process equipment; water used to cool or quench organic vapor streams through direct contact; and condensed steam from jet ejector systems pulling vacuum on vessels containing organics. [40 CFR 63.1361 (CFR 2013)]\n\n8. Wastewater that comes into direct contact with HAP or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product containing HAP, but that has not been discharged untreated as wastewater. Examples are product tank drawdown or feed tank drawdown; water formed during a chemical reaction or used as a reactant; water used to wash impurities from organic products or reactants; water used to cool or quench organic vapor streams through direct contact; water discarded from a control device; and condensed steam from jet ejector systems pulling vacuum on vessels containing organics. Gasholder seal water is not process wastewater until it is removed from the gasholder.\n\n9. Defined at 40 CFR 122.2 and for the purposes of this part, does not include the following:(1) Trimethyl silanol, any active anti-microbial materials, process wastewater from imperfect fermentation batches, and process area spills. Discharges containing such materials are not subject to the limitations and standards of this part.(2) Non-contact cooling water, utility wastewaters, general site surface runoff, groundwater (e.g., contaminated groundwaters from on-site or off-site groundwater remediation projects), and other non-process water generated on site. Discharges of such waters and wastewaters are not subject to the limitations and standards of this part.\n\n10. All water used in and resulting from the beneficiation process, including but not limited to the water used to move the ore to and through the beneficiation process, the water used to aid in classification, and the water used in gravity separation, mine drainage, and infiltration and drainage waters which commingle with mine drainage or waters resulting from the beneficiation process.\n\n11. All wastewater associated with pesticide formulating, packaging and repackaging except for sanitary water, non-contact cooling water and those wastewaters excluded from the applicability of the rule in § 455.40.\n\n12. Excludes non-contact cooling water, material storage yard runoff (either raw material or processed wood storage), boiler blowdown, and wastewater from washout of thermal oxidizers or catalytic oxidizers, wastewater from biofilters, or wastewater from wet electrostatic precipitators used upstream of thermal oxidizers or catalytic oxidizers installed by facilities covered by subparts B, C, D or M to comply with the national emissions standards for hazardous air pollutants (NESHAP) for plywood and composite wood products (PCWP) facilities (40 CFR part 63, subpart DDDD). For the dry process hardboard, veneer, finishing, particleboard, and sawmills and planing mills subcategories, fire control water is excluded from the definition.\n\n13. Wastewater as defined at 40 CFR parts 122 and 401, and includes wastewater from air pollution control devices.\n\n14. All wastewater except for sanitary water and those wastewaters excluded from the applicability of the rule in § 455.60. [40 CFR 455.61 (CFR 2013)]Any water [that], during manufacturing or processing, comes into direct contact with, or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product.[NPDES Permit Writers Glossary]\n\n15. Water directly or indirectly used in the operation of the CAFO for any or all of the following: spillage or overflow from animal or poultry watering systems; washing, cleaning, or flushing pens, barns, manure pits, or other CAFO facilities; direct contact swimming, washing, or spray cooling of animals; or dust control. Process wastewater also includes any water which comes into contact with any raw materials, products, or byproducts including manure, litter, feed, milk, eggs, or bedding.\n\n16. Any water which, during the manufacturing process, comes into direct contact with any raw material, intermediate product, by-product, or product used in or resulting from the production of paving asphalt concrete.\n\n17. Any water which, during manufacturing or processing, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product. The term “process wastewater” does not include contaminated non-process wastewater. [40 CFR 415.91 (CFR 2017)]\n\n18. Any water [that], during manufacturing or processing, comes into direct contact with, or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product.",
  "subject": "Water",
  "references": [
    "National Pollutant Discharge Elimination System (NPDES) Glossary",
    "Terms of Environment",
    "Pretreatment Acronyms and Glossary",
    "40 CFR 63.11398 (CFR 2013)",
    "40 CFR 63.1082 (CFR 2013)",
    "40 CFR 63.1101 (CFR 2013)",
    "40 CFR 63.1423 (CFR 2013)",
    "40 CFR 63.12005 (CFR 2013)",
    "40 CFR 439.1 (CFR 2013)",
    "40 CFR 440.132 (CFR 2013)",
    "40 CFR 455.41 (CFR 2013)",
    "40 CFR 429.11 (CFR 2013)",
    "40 CFR 438.2 (CFR 2013)",
    "Pretreatment Glossary",
    "40 CFR 412.2 (CFR 2017)",
    "40 CFR 443.21 (CFR 2017)",
    "40 CFR 418.11 (CFR 2017)",
    "NPDES Permit Writers Manual Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/process-wastewater/"
}