Wastewater treatment apparatus, wastewater treatment method, wastewater treatment system, control device, and control method

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United States of America Patent

PATENT NO 9302923
APP PUB NO 20140374345A1
SERIAL NO

14481504

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A wastewater treatment apparatus includes an air diffusing unit, a denitrification confirming unit, a nitrification confirming unit, a gas supply-amount control unit. The air diffusing unit supplies gas to nitrogen-containing water. The denitrification confirming unit provided at a first predetermined position confirms a denitrification state whether a desired proportion of the nitrate has been denitrified. The nitrification confirming unit provided at a second predetermined position confirms a nitrification state whether a desired proportion of the ammonia has been nitrified. The gas supply-amount control unit controls a gas supply amount at least on an upstream side of the denitrification confirming unit, so that the desired proportion of the nitrate is denitrified at the first predetermined position, and controls the gas supply amount at least on an upstream side of the nitrification confirming unit, so that the desired proportion of the ammonia is nitrified at the second predetermined position.

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Patent Owner(s)

Patent OwnerAddress
TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION6-2 OTEMACHI 2-CHOME CHIYODA-KU TOKYO 100-0004
METAWATER CO LTDTOKYO JAPAN TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furuya, Yuji Tokyo, JP 8 50
Inagaki, Noriaki Tokyo, JP 3 29
Kassai, Kouji Tokyo, JP 1 2
Maeda, Makoto Tokyo, JP 78 613
Sone, Keiichi Tokyo, JP 2 9
Suzuki, Shigehiro Tokyo, JP 11 237
Takahashi, Hiroyuki Tokyo, JP 707 15645
Tsuboi, Nobuki Tokyo, JP 3 5
Wada, Tsutomu Tokyo, JP 15 297

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