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Wastewater Treatment

Wastewater Treatment. Rocky Beem 2013 Smithfield Environmental Training Conference. Wastewater Sources. Meatpacking Water Uses: Cleaning (sanitation) Process Uses (product-related) Sanitary (restrooms) Cooling Towers and Boiler Blow-Down System Leaks Quantities Used

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Wastewater Treatment

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  1. Wastewater Treatment Rocky Beem 2013 Smithfield Environmental Training Conference

  2. Wastewater Sources • Meatpacking Water Uses: • Cleaning (sanitation) • Process Uses (product-related) • Sanitary (restrooms) • Cooling Towers and Boiler Blow-Down • System Leaks • Quantities Used • Up to several million gallons per day • Daily fluctuations with cleaning

  3. Types of Contaminants • Organic Materials • Soluble and solids • Meat processing • Sanitary (restrooms) • Ingredients (honey) • Holding pen waste • Chemical Materials • Treatment chemicals (cooling towers / boilers) • Sanitation chemicals • Product ingredients • Inorganic solids (dirt)

  4. Environmental Impact • Oxygen Depletions • Organic material (BOD) • Ammonia (and other nutrients) • Grease • Toxicity • Sanitation chemicals • Ammonia • Chlorine • Silting and Sedimentation • Inorganic solids • Aesthetic Concerns • Floating Grease • Odors Water Returns to the Environment !

  5. Wastewater Sources Contaminated Water Generated at Plant Stormwater Local Creek Process Drains Sanitary Process Drains Direct Discharge Pre-Treatment On-Site Wastewater Treatment Public Owned Treatment Works (POTW)

  6. Discharge Approval Contaminated Water Generated at Plant Stormwater Local Creek Process Drains Sanitary Stormwater Pollution Prevention Plan City Ordinance Direct Discharge Pre-Treatment City-Issued Discharge Permit State-Issued Discharge Permit (NPDES) On-Site Wastewater Treatment Public Owned Treatment Works (POTW) State-Issued Discharge Permit (NPDES)

  7. On-Site Treatment Processes • Further Processing Plants • Grease Traps • Fine-Mesh Rotary Screens • Dissolved Air Flotation (DAF) • Harvest Facilities • Secondary biological treatment • Anaerobic lagoons • Activated sludge • Remove soluble BOD

  8. Discharge Permit Limits • Limits on Discharge Quality • Organic Load (BOD) • Suspended Solids (TSS) • Oil and Grease (FOG / HEM) • Ammonia / Total Nitrogen • pH • Total and Average Flow • General Prohibitions • Can harm the POTW • Create a hazard

  9. Other Requirements Sampling and Analysis • Sampling and Analysis • Reporting • Monthly / Quarterly DMR • Exceeding Limits • Conditions that could upset POTW • Significant changes (e.g. flow) • Operation and Maintenance • Per generally accepted standards • Permit Renewal (90 days) • Mandatory Operator Training • Limited to Maryland • Smithfield Requirements Reporting Operation & Maintenance Permit Renewal Operator Training

  10. Non-Compliance Consequences • Warning Letter • Discretion of permitting agency • Notice of Violation (NOV) • Exceed permit limit • Late reporting • Missed sampling event • Criminal Charges • Neglect • Falsifying data

  11. Operator Training • Smithfield Training Program • Web-Based (on-line) training • 21 courses available • Required within 6 months of employment • Take courses applicable to job (processes) • Tests included

  12. Smithfield NOVs • By Media • Air – 1 • PCBs – 1 • Wastewater – 27 • Wastewater NOVs • 1/3 of facilities • pH, Chlorides, oil & grease, BOD, TSS • Significant Improvements

  13. Questions ?? • Rocky Beem • rolandbeem@smithfieldfoods.com • 757-356-6714

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