METHOD AND DEVICE FOR CONTROLLING AIR DIFFUSION RATE OF VARIABLE VOLUME BIOREACTOR
PURPOSE:To prevent the degradation in function by automatically adjusting an air diffusion rate in conformity with the fluctuation in a water level. CONSTITUTION:The raw water of org. waste water is introduced into a settling basin 15 and the supernatant liquid is introduced into a biotreatment reac...
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| creator | AYA HIDENORI MAIDA TOSHIROU KAMIMOTO YASUSHI TOMIKAWA HATSUO MATSUDA KAZUYOSHI |
| description | PURPOSE:To prevent the degradation in function by automatically adjusting an air diffusion rate in conformity with the fluctuation in a water level. CONSTITUTION:The raw water of org. waste water is introduced into a settling basin 15 and the supernatant liquid is introduced into a biotreatment reaction vessel after settling and separation. This waste water 5 flows upward and downward in a biomembrane fixed filter bed 2. An air diffusion pipe 3 is disposed in the lower part of the biomembrane fixed filter bed 2 and air is supplied from an aeration blower 4. The biooxidation treatment by an immersion filter bed method is executed in the part of the biomembrane fixed filter bed 2 under the water surface of the org. waste water the water level of which fluctuates upward and downward. A level gage 9 detects the rise of the water level upon rising of the water level. Then, a controller 11 calculates the deficient amt. of oxygen and increases the rotating speed of the aeration blower 4 via an inverter 12, thereby activating the aeration. The biotreatment is thereby stably executed and the energy consumption is reduced. |
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CONSTITUTION:The raw water of org. waste water is introduced into a settling basin 15 and the supernatant liquid is introduced into a biotreatment reaction vessel after settling and separation. This waste water 5 flows upward and downward in a biomembrane fixed filter bed 2. An air diffusion pipe 3 is disposed in the lower part of the biomembrane fixed filter bed 2 and air is supplied from an aeration blower 4. The biooxidation treatment by an immersion filter bed method is executed in the part of the biomembrane fixed filter bed 2 under the water surface of the org. waste water the water level of which fluctuates upward and downward. A level gage 9 detects the rise of the water level upon rising of the water level. Then, a controller 11 calculates the deficient amt. of oxygen and increases the rotating speed of the aeration blower 4 via an inverter 12, thereby activating the aeration. The biotreatment is thereby stably executed and the energy consumption is reduced.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | METHOD AND DEVICE FOR CONTROLLING AIR DIFFUSION RATE OF VARIABLE VOLUME BIOREACTOR |
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