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All poultry processing plants generate raw wastewater with relatively high phosphorus levels. Phosphorus reaches the wastewater stream as a result of:

Release from the meat being processed

Use of trisodium phosphate for bird washing

Use of phosphorus containing marinates

Use of phosphate based sanitation chemicals

The techniques used for the removal of phosphorus from poultry processing wastewater cover the full range of typical techniques used throughout the wastewater industry. These include:

Source reduction through the use of alternative chemicals and marinates

Chemical coagulation during pretreatment

Biological nutrient removal during biological treatment

Chemical coagulation during final clarification and polishing

Currently, few plants have permits with phosphorus limitations. There is no particular technique that dominates the facilities that are required to remove phosphorus. This is due to the fact that each facility has to be evaluated based on the specific situation that exists as relates to:

Existing facility capabilities

Treatment requirements

Sludge handling capabilities

Other site specific considerations
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Document Type: Research Article

Publication date: 2001-01-01

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