System and method of supplements dosing to remove total nitrogen from sewage
OwnerGregory D. GRAVESinventor
Life of this patent
Estimating the term…
Abstract
A system and method of supplements dosing to remove total nitrogen (TN) from domestic wastewater that can be implemented in a multi-chamber system with a pretreatment chamber fluidly connected to either an anoxic chamber or an aeration chamber, and if connected to the anoxic chamber, the anoxic chamber is fluidly connected to the aeration chamber or tank, and the aeration chamber is fluidly connected to a settling chamber or tank. The system can be used with several methods of organic and alkaline material supplements dosing to remove suspended solids, BOD, ammonia (NH4), nitrate and TN from wastewater.
Claims14
-17. (canceled)
A wastewater treatment system for removing total nitrogen from an influent residential wastewater comprising:
- means for receiving a volume of wastewater;
- means for pretreating the volume of wastewater to produce pretreated wastewater;
- means for receiving the pretreated wastewater from the pretreating means;
- means for anoxically treating the pretreated wastewater to produce anoxically treated wastewater;
- means for delivering an amount of an organic material and a first amount of an alkaline material in the anoxically treating means;
- means for maintaining a minimum temperature of the pretreated wastewater in the anoxically treating means;
- means for receiving the anoxically treated wastewater from the anoxically treating means;
- means for aerating the anoxically treated wastewater to produce aerated wastewater;
- means for measuring pH and dissolved oxygen levels of the pretreated wastewater in the anoxically treating means and in the anoxically treated wastewater in the aerating means;
- means for delivering at least one of a second amount of the organic material and second amount of the alkaline material in the aerating means;
- means for receiving aerated wastewater from the aerating means;
- means for settling the aerated wastewater to produce settled wastewater;
- and for internally pumping sedimentation and settled wastewater from the settling means back to the anoxically treating means;
- means for mixing the pumped sedimentation and settled wastewater with the pretreated wastewater in the anoxically treating means;
- means for treating the settled wastewater to produce treated water;
- and
- means for discharging the treated wastewater as an effluent wastewater from the settling means.
-55. (canceled)
A wastewater treatment system for removing total nitrogen from an influent residential wastewater comprising:
- means for receiving a volume of wastewater;
- means for pretreating the volume of wastewater to produce pretreated wastewater;
- means for receiving the pretreated wastewater from the pretreating means;
- means for aeration treating the pretreated wastewater to produce aeration treated wastewater;
- means for measuring pH and dissolved oxygen levels of the pretreated wastewater in at least one of the aeration treating means and the pretreating means;
- means for optionally delivering at least one of an amount of the organic material and an amount of the alkaline material in the pretreating means;
- means for delivering at least one of an amount of an organic material and an amount of an alkaline material in the aeration treating means;
- means for maintaining a minimum temperature of the aeration treated wastewater in the aeration treating means;
- means for delivering at least one of an amount of the organic material and an amount of the alkaline material in the aeration treating means;
- means for performing a nitrification process and a denitrification process on the pretreated wastewater in the aeration treating means to convert ammonium to nitrogen gas to form an aeration treated wastewater;
- means for pumping sludge into one of the pretreatment means and mixing the sludge with the pretreated wastewater in the pretreatment means, and the aeration treating means and mixing the sludge with the aeration treated wastewater in the aeration treating means;
- means for receiving aeration treated wastewater from the aeration treating means;
- means for settling the aeration treated wastewater to produce settled wastewater;
- means for internally pumping sedimentation and settled wastewater from the settling means back to the aeration treating means;
- means for mixing the pumped sedimentation and settled wastewater with the pretreated wastewater in the aeration treating means;
- means for treating the settled wastewater to produce treated water;
- and
- means for discharging the treated wastewater as an effluent wastewater from the settling means.
Dependencies are inferred from the claim text.