Parker Ag Services, LLC products

Biosolids is generally used after applicable beneficial recycling criteria have been achieved, i.e., at the outlet of the stabilization process. Common stabilization processes include the following: aerobic digestion, autothermal thermophilic aerobic digestion (ATAD), anaerobic digestion, composting, alkaline stabilization, thermal drying, including flash, rotary, fluid bed, paddle, hollow-flight, disc, and infrared dryers, thermophilic pozzolanic fixation, acid oxidation/disinfection, and heat treatment/acid digestion.

Sludge is generally used before applicable beneficial recycling criteria have been achieved which normally occurs at the outlet of the stabilization process. It should be used in tandem with a specific process descriptor, e.g., primary sludge, waste activated sludge, secondary sludge, etc.

Domestic Septage is defined by the USEPA as a liquid or solids material removed from a septic tank cesspool, potable toilet, Type III marine Sanitation device or a similar system that receives only domestic septage (household, non-commercial, non-industrial sewage). Although small amounts of food grade grease in mixed into the domestic septage (less than 10% by agreement with the USEPA Region VIII), the material will still be considered domestic septage. Blue water, waste from portable toilets is considered domestic septage.