Patent ID: 8828230

Claim:
A method to increase biological digester bacterial removal rates of phosphates, ammonia, nitrates/nitrites, and BODs from wastewater containing suspended organic solids, comprising: a. injecting sulfur dioxide into wastewater streams having suspended organic solids containing carbon, b. holding the sulfur dioxide-treated wastewater streams for the dwell time required to agglomerate the suspended organic solids while adding sulfates/sulfites/bisulfites to the carbon, and acid leach any heavy metals from the solids into the wastewater stream liquids containing phosphates, ammonia and nitrate/nitrite, and BOD compounds, c. separating, drying, and comminuting the suspended organic solids containing sulfates/sulfites/bisulfites to produce sulfur and carbon electron donor compounds, and d. adding the sulfur and carbon electron donor compounds to a bioreactor containing bacteria to provide shade cover from ultra violet light sources (UV), a growth substrate, and nutrients to maintain the bacteria in an exponential growth phase to accelerate removal of phosphates, ammonia and nitrate/nitrite, and BOD compounds.