Biodestruction of blended residual oxidants

Abstract

The oxidant waste stream treatment may provide for treatment of oxidant laden waste streams. A screened or clarified wastewater stream may be combined with an oxidant stream to produce a blended stream. The blended stream may be processed in a bioreactor.

1 . A method for treatment of oxidant laden waste streams comprising: 
 combining a wastewater stream with an oxidant stream having oxy-anions at a ratio of between 20% volumetric flow rate and 75% volumetric flow rate to produce a blended stream; and    processing said blended stream in a bioreactor.    
   
   
       2 . The method as in  claim 1  wherein said ratio for combining is the flow rate of said oxidant stream divided by the sum of the flow rate of said oxidant stream and the flow rate of said municipal wastewater stream.  
   
   
       3 . The method as in  claim 1  wherein said blended stream having lower concentrations of dissolved oxygen and total dissolved solids, and a higher concentration of a biodegradable organic matter than said oxidant stream.  
   
   
       4 . The method as in  claim 1  wherein said blended stream having a pH between approximately 5 and 10.  
   
   
       5 . The method as in  claim 1  wherein the temperature of said blended stream is between approximately 5 degrees and 40 degrees Celsius.  
   
   
       6 . The method as in  claim 1  wherein the empty bed contact time in said bioreactor is between approximately 3 minutes and 120 minutes.  
   
   
       7 . The method as in  claim 1  wherein said wastewater stream is a portion of a wastewater stream source at a wastewater treatment facility.  
   
   
       8 . The method as in  claim 1  wherein said wastewater stream is a portion of a wastewater stream source channeled to an oxidant stream source site.  
   
   
       9 . The method as in  claim 1  wherein said wastewater stream is processed for the removal of suspended solids prior to being combined with said oxidant stream.  
   
   
       10 . The method as in  claim 1  wherein said bioreactor is selected from the group consisting of a suspended growth reactor and a fixed film reactor.  
   
   
       11 . (canceled)  
   
   
       12 . The method as in  claim 1  wherein said wastewater stream having an organic content that serves as an electron donor source to reduce the oxidants present in said oxidant stream.  
   
   
       13 . The method as in  claim 12  wherein said wastewater stream having a lower concentration of dissolved oxygen than said oxidant stream.  
   
   
       14 . The method as in  claim 12  wherein said wastewater stream having a lower concentration of total dissolved solids than said oxidant stream.  
   
   
       15 . The method as in  claim 12  wherein said wastewater stream having a perchlorate-reducing bacteria to seed said bioreactor.