JP2004530530A5

JP2004530530A5 -

Info

Publication number: JP2004530530A5
Application number: JP2002532170A
Authority: JP
Filing date: 2001-10-05
Publication date: 2005-04-28

Claims

Sending the stream of influent wastewater to an anaerobic conditioner area where the hydrous evaporation residue is recirculated, mixed and kept in suspension;
Sending a low oxygen concentration mixture suspension from the anaerobic selector region to the anaerobic conditioner region, and maintaining the dissolved oxygen concentration in the anaerobic conditioner region at a low state;
Sending the effluent from the anaerobic conditioner area to a first aerobic reaction tank area and mixing the effluent from the anaerobic conditioner area with the return sludge from the purification area in the first aerobic reaction tank area. Then, the contents of the first aerobic reaction tank region are recirculated and aerated, and the precipitated solids contained in the contents of the first aerobic reaction tank region are separated, whereby solids and Decomposing and oxidizing other organic matter and accumulating insert solids;
Discharging accumulated inert solids from the first aerobic reactor region;
Sending an effluent of aqueous solution from the first aerobic reactor region to the anaerobic selector region for recirculating and mixing the aqueous solution of the anaerobic selector region;
A first portion corresponding to a low oxygen concentration / mixed-solution suspension is transferred to the anaerobic conditioner region of the aqueous solution in the anoxic selector region, and a second portion of the aqueous solution in the anoxic selector region is transferred to the anaerobic selector region. Transferring to a second aerobic reactor area;
Separating the precipitated solids by recirculating the aqueous solution contained in the second aerobic reactor region and aeration, thereby decomposing and oxidizing the suspended solids and other organic matter;
Sending a first portion of the aqueous solution in the second aerobic reactor region to the first aerobic reactor region;
Sending a second portion of the aqueous solution in the second aerobic reactor region to the purification region to precipitate or separate solids from the aqueous solution in the purification region;
Sending solids corresponding to return sludge, precipitated or separated from the purification zone, to the first aerobic reactor zone;
Sending the aqueous solution of the purification zone to the filtration zone, and precipitating or separating solids from the aqueous solution sent to the filtration zone;
Transferring the liquid content of the effluent of the filtration region to an effluent tank and transferring the precipitated or separated solid content of the effluent of the filtration region to the influent wastewater stream for reprocessing. A method for treating an aqueous solution containing waste characterized in that.

A stream of influent wastewater containing microorganisms is sent to the anaerobic conditioner area where the hydrous evaporation residue is recirculated, mixed and kept in suspension, and the flow from the anaerobic selector area to the anaerobic conditioner area is reduced. Achieving a first stage of luxury phosphorous uptake that regulates the flow of oxygen-suspended suspension material to maintain a low dissolved oxygen concentration within the anaerobic conditioner region;
The effluent from the anaerobic conditioner area is sent to a first aerobic reaction tank area, and the effluent from the anaerobic conditioner area is mixed with the return sludge supplied from the purification area in the first aerobic reaction tank area. Thus, the contents of the first aerobic reaction tank region are recirculated and aerated, and nitrification occurs, and the solid precipitates contained in the contents of the first aerobic reaction tank region are separated. And thereby promoting the second stage of luxury phosphorus intake while decomposing and oxidizing suspended solids and other organic matter and accumulating intercalated solids;
Discharging accumulated inert solids from the first aerobic reactor region;
The effluent of the aqueous solution is sent from the first aerobic reactor region to the anaerobic selector region where the aqueous solution of the anaerobic selector region is recycled and mixed, and consumption of organic substances contained in the aqueous solution Simultaneously presenting a hypoxic environment in the anoxic selector region so that denitrification and release of biological phosphorus occurs;
A first portion corresponding to a low oxygen concentration / mixed-solution suspension in the aqueous solution of the anaerobic selector region is transferred to the anaerobic conditioner region, and at least a second portion of the aqueous solution of the anaerobic selector region. Transferring a second portion of the anaerobic selector region aqueous solution, rich in microorganisms and nutrients, to the second aerobic tank region;
The aqueous solution contained in the second aerobic reactor region is recirculated and aerated to generate nitrification, fractionate the precipitated solids, thereby decomposing and oxidizing suspended solids and other organic substances. Further accelerating the second stage of luxury phosphorus intake leading to large amounts of phosphorus consumption by microorganisms;
Sending a first portion of the aqueous solution in the second aerobic reactor region to the first aerobic reactor region;
Sending a second portion of the aqueous solution in the second aerobic reactor region to the purification region and precipitating or separating solids from the aqueous solution sent to the purification region;
Sending solids precipitated or separated from the purification zone to the first aerobic reactor region as return sludge;
Sending the aqueous solution in the purification zone to the filtration zone, and precipitating or separating solids from the aqueous solution sent to the filtration zone;
Transferring a liquid component of the effluent of the filtration region to an effluent tank, and transferring a precipitated or separated solid component of the effluent of the filtration region to the influent wastewater stream for reprocessing. A method for biologically treating an aqueous solution containing waste to reduce organic substances, nitrogen and phosphorus.

An anaerobic conditioner region fluidly connected to the inlet, wherein the anaerobic condition is received in a manner that accepts the flow of influent wastewater through the inlet and keeps the water-containing evaporation residue in suspension. Recirculating waste water in the conditioner region and accepting a flow of low oxygen concentration mixture suspension material from the anaerobic selector region to maintain a low dissolved oxygen concentration in the anaerobic conditioner region; The anaerobic conditioner region; and
A first aerobic reactor region fluidly connected to the anaerobic conditioner region, wherein the effluent from the anaerobic conditioner region mixed with the return sludge supplied from the purification region is received, Recirculate the contents of the first aerobic reactor area to aerate and separate the precipitated solids, thereby decomposing and oxidizing suspended solids and other organics, accumulating inert solids The first aerobic reaction vessel region, wherein the accumulated inert solids are discharged from the first aerobic reaction vessel region;
An anaerobic selector region fluidly connected to the anaerobic conditioner region and the first aerobic reactor region, receiving an aqueous solution effluent from the first aerobic reactor region; Recirculating and mixing the aqueous solution in the anaerobic selector region and sending a first portion of the aqueous solution in the anoxic selector region corresponding to a low oxygen concentration / mixed liquid suspension to the anaerobic conditioner region; The anoxic selector region;
A second aerobic reactor region fluidly coupled to the anaerobic selector region and the first aerobic reactor region, and receiving a second portion of the aqueous solution in the anaerobic selector region , Recirculating the aqueous solution in the second aerobic region and aeration to fractionate the precipitated solids, and the first portion of the aqueous solution in the second aerobic reaction vessel region to the first Said second aerobic reactor region, which is sent to the aerobic reactor region;
The second aerobic region and the purification region fluidly connected to the first aerobic region, wherein the second portion of the aqueous solution in the second aerobic reaction tank region is received to precipitate Or the separation region that captures solids from the aqueous solution and sends the precipitated solids corresponding to the return sludge to the first aerobic reaction tank region;
A filtration region fluidly connected to the purification region, the inlet and the outlet, receiving effluent from the purification region, separating solids from the liquid content of the purification region, and corresponding to drainage A first portion of the contents of the filtration region to the outlet and a second portion of the contents of the filtration region corresponding to the separated solids to the inlet and the inflow wastewater for reprocessing. An apparatus for treating an aqueous solution containing waste, characterized in that it comprises a filtration zone that mixes with the stream.

At least one biological and physical material used to treat contaminated aqueous solutions And multiple components of contaminated aqueous solutions containing nutrients, microorganisms and oxygen, including being more uniform in terms of proximity between the chemical process and the functioning that favors and thus more accessible A method for promoting solid weight loss by changing at least one of the conditions to an advantageous state,
  Applying a speed change to at least one of speed and direction within at least a portion of the contaminated aqueous solution;
  Applying pressure fluctuations to at least a portion of the contaminated aqueous solution;
  Generating at least one high shear region acting on at least a portion of the contaminated aqueous solution;
  Chopping the floc and solid material for at least a portion of the contaminated aqueous solution to change the conditions of the floc and solid material to an advantageous state.

The method of claim 4, further comprising forming bubbles in at least a portion of the contaminated aqueous solution.

The method of claim 4, further comprising stirring and mixing the contaminated aqueous solution to increase its homogeneity.

The method of claim 5, further comprising stirring and mixing the contaminated aqueous solution to increase its homogeneity.

5. The method of claim 4, further comprising the step of lysing the microbial cells in the contaminated aqueous solution that changes the conditions of the microbial cells in the contaminated aqueous solution to an advantageous state.

8. The method of claim 7, further comprising the step of lysing the microbial cells in the contaminated aqueous solution that changes the conditions of the microbial cells in the contaminated aqueous solution to an advantageous state.

7. The method of claim 6, further comprising the step of lysing the microbial cells in the contaminated aqueous solution that changes the conditions of the microbial cells in the contaminated aqueous solution to an advantageous state.

The method of claim 8, further comprising forming bubbles in at least a portion of the contaminated aqueous solution.

Including more uniform and thus more accessible in terms of the proximity of at least one biological, physical and chemical process and the functioning that is beneficial to the treatment of contaminated aqueous solutions By changing the condition of at least one of the components of the contaminated aqueous solution containing nutrients, microorganisms and oxygen to an advantageous state, the amount after treatment approaches the net increase in biosolids to zero. Solid net product ( net yield ) To promote weight loss of solids,
  Applying a speed change to at least one of speed and direction within at least a portion of the contaminated aqueous solution;
  Applying pressure fluctuations to at least a portion of the contaminated aqueous solution;
Generating at least one high shear region acting on at least a portion of the contaminated aqueous solution;
  Chopping floc and solid material for at least a portion of the contaminated aqueous solution to change the conditions of the floc and solid material to an advantageous state;
  Lysing at least some of the microbial cells in the contaminated aqueous solution.

13. The method of claim 12, further comprising forming bubbles in at least a portion of the contaminated aqueous solution.

The method of claim 13, further comprising stirring and mixing the contaminated aqueous solution to increase its homogeneity.

The method of claim 12, further comprising stirring and mixing the contaminated aqueous solution to increase its homogeneity.

Including more uniform and thus more accessible in terms of the proximity of at least one biological, physical and chemical process and the functioning that is beneficial to the treatment of contaminated aqueous solutions Contamination of storage volume containing nutrients, microorganisms and oxygen by changing at least one of the components of the solution to an advantageous state during start-up, toxic recovery or work request sequence A method for increasing biomass concentration in an aqueous solution treatment process,
  Applying a speed change to at least one of speed and direction within at least a portion of the contaminated aqueous solution;
  Applying pressure fluctuations to at least a portion of the contaminated aqueous solution;
  Generating at least one high shear region acting on at least a portion of the contaminated aqueous solution;
  Chopping floc and solid material for at least a portion of the contaminated aqueous solution to change the conditions of the floc and solid material to an advantageous state;
  Stirring and mixing the contaminated aqueous solution to increase its homogeneity;
  Forming bubbles in at least a portion of the contaminated aqueous solution.