Methods and apparatus for biological treatment of waste waters
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C02F-003/20
C02F-003/30
출원번호
US-0083995
(2002-02-25)
발명자
/ 주소
Pollock, David
출원인 / 주소
V.A.I. Ltd.
대리인 / 주소
Graybeal Jackson Haley LLP
인용정보
피인용 횟수 :
22인용 특허 :
4
초록▼
In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater. The devices and methods of the invention are useful for enhanced secondary wastewater treatment, inclu
In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater. The devices and methods of the invention are useful for enhanced secondary wastewater treatment, including BOD and TSS removal. Tertiary treatment can alternately or additionally be achieved in the bioreactor with nitrification of ammonia, with nitrification and denitrification, and with nitrification, denitrification, and chemical phosphorus removal. A vertical shaft bioreactor is also provided which achieves thermophilic aerobic digestion and pasteurization of sewage sludges, optionally to produce class A biosolids.
대표청구항▼
In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater. The devices and methods of the invention are useful for enhanced secondary wastewater treatment, inclu
In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater. The devices and methods of the invention are useful for enhanced secondary wastewater treatment, including BOD and TSS removal. Tertiary treatment can alternately or additionally be achieved in the bioreactor with nitrification of ammonia, with nitrification and denitrification, and with nitrification, denitrification, and chemical phosphorus removal. A vertical shaft bioreactor is also provided which achieves thermophilic aerobic digestion and pasteurization of sewage sludges, optionally to produce class A biosolids. centrated water flowing out of the concentrating compartment being discharged out of a circulatory system.2. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein the concentrated water flows in the concentrating compartment in single-pass counter-flow manner relative to the raw water flowing in the desalting compartment.3. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein the water supplied to the concentrating compartment is at least one of desalted water directly obtained from the electrodeionization apparatus, and treated water produced by further treating the desalted water by another ion exchange apparatus.4. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein the anolyte compartment and the catholyte compartment are filled with at least one of activated carbon, ion-exchanger, and electric conductor.5. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein the anode is in contact with the cation-exchange membrane which defines the anolyte compartment, the cathode is in contact with the anion-exchange membrane which defines the catholyte compartment, and the anode and the cathode are each provided, at least at a side being in contact with the corresponding membrane, with a porous structure having continuous multiple apertures through which the electrode water flows. 6. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein the concentrated water flows in the concentrating compartment at a line velocity (LV) of 20 m/hr or less.7. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein the desalting compartment is has a thickness of 2-5 mm.8. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein the electrodeionization apparatus is operated under a current value such that current efficiency of the electrodeionization apparatus expressed by the following equation is 10% or less:Current Efficiency (%)=1.31[flow rate per cell ( L/min)][[equivalent conductivity of raw water (&mgr;S/cm]−[equivalent conductivity of treated water (&mgr;S/cm)]]/current (A).9. A method of operating an electrodeionization apparatus as claimed in claim 8, wherein the electrodeionization apparatus as operated under a current value that the current efficiency is 5% or less.10. A method of operating an electrodeionization apparatus as claimed in claim 1, wherein a part of the deionized water is introduced into the anolyte compartment.11. An electrodeionization apparatus comprising: an anolyte compartment having an anode; a catholyte compartment having a cathode; at least one concentrating compartment having an inlet and an outlet; at least one desalting compartment situated adjacent to the at least one concentrating compartment and having an inlet adjacent to the outlet of the at least one concentrating compartment and an outlet adjacent to the inlet of the at least one concentrating compartment, where in the concentrating compartment and the desalting compartment are formed between the anolyte compartment and the catholyte compartment by arranging at least one anion-exchange membrane and at least one cation-exchange membrane; ion-exchanger with which the desalting compartment is filled; at least one of ion-exchanger, activated carbon, and electric conductor which fills the concentrating compartment; a device for introducing electrode water into the anolyte compartment and the catholyte compartment, respectively; a device for feeding raw water into the desalting compartment through the inlet thereof so that deionized water, flows out of the desalting compartment through the outlet thereof; and a concentrated water introducing device for introducing a part of the deionized water into the concentrating compartment front the inlet adjacent to the outlet of the desalting compartment, said concentr ated water introducing device discharging concentrated water out of the concentrating compartment from the outlet adjacent to the inlet of the desalting compartment and further discharging at least a part of the concentrated water flowing out of the concentrating compartment out of a circulatory system. 12. An electrodeionization apparatus as claimed in claim 11, wherein the concentrated water introducing device introduces the concentrated water into the concentrating compartment in single-pass counter-flow manner relative to the raw water flowing in the desalting compartment.13. An electrodeionization apparatus as claimed in claim 11, wherein the concentrated water introducing device introduces one of desalted water produced by the electrodeionization apparatus, and treated water prepared by further treating the desalted water by another ion exchange apparatus.14. An electrodeionization apparatus as claimed in claim 11, wherein the anolyte compartment and catholyte compartment are filled with at least one of activated carbon, ion-exchanger, and electric conductor.15. An electrodeionization apparatus as claimed in claim 11, wherein the anode is in contact with the cation-exchange membrane which defines the anolyte compartment, the cathode is in contact with the anion-exchange membrane which defines the catholyte compartment, and the anode and the cathode are each provided, at least at a side being in contact with the corresponding membrane, with a porous structure having continuous multiple apertures through which the electrode water flows in the anolyte compartment and the catholyte compartment. 16. An electrodeionization apparatus as claimed in claim 11, wherein the concentrated water introducing device provides the water to flow at a line velocity (LV) of 20 m/hr or less.17. An electrodeionization apparatus as claimed in claim 11, wherein the desalting compartment has a thickness of 2-5 mm.18. An electrodeionization apparatus as claimed in claim 11, wherein the anode and cathode receives a current has at a current value such that current efficiency of the electrodeionization apparatus expressed by the following equation is 10% or less:Current Efficiency (%)=1.31[flow rate per cell ( L/min)][[equivalent conductivity of raw water (&mgr;S/cm]−[equivalent conductivity of treated water (&mgr;S/cm)]]/current (A).19. An electrodeionization apparatus as claimed in claim 18, wherein the current has a current value that the current efficiency of the electrodeionization apparatus expressed by the following equation is 5% or less.20. A system for producing ultra pure water comprising the electrodeionization apparatus as claimed in claim 11.21. A system for producing ultra pure water as claimed in claim 20, further comprising an ultrafiltration membrane separation apparatus into which the deionized water from the electrodeionization apparatus is introduced, wherein the concentrated water front the ultrafiltration membrane separation apparatus is introduced into the concentrating compartment of the electrodeionization apparatus.22. An electrodeionization apparatus as claimed in claim 11, wherein the device for introducing the electrode water into the anolyte compartment introduces a part of the deionized water into the anolyte compartment. 31, WO; WO98/000705, WO; WO98/000707, WO; WO98/002728, WO; WO98/005424, WO; WO98/022811, WO; WO98/045481, WO; WO98/045929, WO; WO98/046438, WO; WO98/049548, WO; WO98/055852, WO; WO98/056956, WO; WO99/000649, WO; WO99/010735, WO; WO99/012016, WO; WO99/016162, WO; WO99/019056, WO; WO99/019516, WO; WO99/029497, WO; WO99/056954, WO; WO99/064848, WO; WO00/009753, WO; WO01/014064, WO; WO01/031322, WO
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이 특허에 인용된 특허 (4)
Pollock David C. I. (Richmond Hill CAX) Wilson Malcolm A. (Vegreville CAX), Method for the froth flotation separation and treatment of slowly biodegradable components in waste treatment.
Hines David A. (Stockton-on-Tees GB2) Jones Richard T. (Stockton-on-Tees GB2) Roesler Frank C. (Stockton-on-Tees GB2), Sewage treatment-flotation apparatus.
Hyde, Roderick A.; Jung, Edward K. Y.; Kare, Jordin T.; Levien, Royce A.; Lord, Robert W.; Malamud, Mark A.; Rinaldo, Jr., John D.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L., Distillation of status data relating to regimen compliance responsive to the presence and absence of wireless signals relating to one or more threshold frequencies.
Zhu, Ivan X.; Bates, Brian J., Method and apparatus for monitoring and controlling ozonation and aerated filtration using UV and visible spectral measurement and oxidation reduction potential.
Hyde, Roderick A.; Jung, Edward K. Y.; Kare, Jordin T.; Levien, Royce A.; Lord, Robert W.; Malamud, Mark A.; Rinaldo, Jr., John D.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L., Systematic distillation of status data relating to regimen compliance.
Hyde, Roderick A.; Jung, Edward K. Y.; Kare, Jordin T.; Levien, Royce A.; Lord, Robert W.; Malamud, Mark A.; Rinaldo, Jr., John D.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L., Systematic distillation of status data relating to regimen compliance.
Hyde, Roderick A.; Jung, Edward K. Y.; Kare, Jordin T.; Levien, Royce A.; Lord, Robert W.; Malamud, Mark A.; Rinaldo, Jr., John D.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L., Systematic distillation of status data relating to regimen compliance.
Hyde, Roderick A.; Jung, Edward K. Y.; Kare, Jordin T.; Levien, Royce A.; Lord, Robert W.; Malamud, Mark A.; Rinaldo, Jr., John D.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L., Systematic distillation of status data responsive to whether or not a wireless signal has been received and relating to regimen compliance.
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