Commercial / Industrial Bakery Wastewater Treatment

Commercial Bakery Photo
TYPICAL CONTENT LEVELS OF INDUSTRY WASTEWATER BEFORE TREATMENT
COD BOD TSS TP TKN FOG
7,000 3,200 6,000 6.8 36 820
Legend: COD (Chemical oxygen demand), BOD (Biological oxygen demand), TSS (Total Suspended solids), TP (Total phosporous), TKN (Total kjeldahl nitrogen)
Food Beverage Process Flow Diagram

PROCESS DESCRIPTION

  1. A DAF system utilizes a separation technique that injects microscopic air bubbles into the DAF tank.
  2. These tiny bubbles attach to the insoluble pollutant materials, floating them to the surface the way a life preserver keeps a person afloat.
  3. Certain materials used in the baking process are heavier than water. They require the addition of flocculants, which attract suspended contaminant particles and air. When combined, these two substances cause the pollutants to join in clusters and force them to float to the pretreatment vessel’s surface.
  4. These accumulating contaminants at the surface of the DAF vessel are what is known as “sludge.” They are then scraped off the surface of the water and removed from the treatment process.
  5. Clean water then exits at the bottom of the DAF vessel and can now be safely discharged to the sewer.

Preview the impressive results are Enhanced DAF (E-DAF) produced processing the wastewater from a US based commercial bakery.