Non-waste water flue gas treatment system and non-waste water flue gas treatment method

Non-waste water flue gas treatment system and non-waste water flue gas treatment method

An apparatus is disclosed including a desulfurization device which removes sulfur oxides contained in boiler flue gas, a spray drying device which sprays desulfurization waste water discharged from the desulfurization device and which dries the waste water by introducing a drying gas, a flue gas sup...

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Hauptverfasser: Sugita, Satoru, Ukai, Nobuyuki, Fukuda, Toshihiro, Hirayama, Koichiro, Ushiku, Tetsu, Kamiyama, Naoyuki
Format: Patent
Sprache:eng
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CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator Sugita, Satoru
Ukai, Nobuyuki
Fukuda, Toshihiro
Hirayama, Koichiro
Ushiku, Tetsu
Kamiyama, Naoyuki
description An apparatus is disclosed including a desulfurization device which removes sulfur oxides contained in boiler flue gas, a spray drying device which sprays desulfurization waste water discharged from the desulfurization device and which dries the waste water by introducing a drying gas, a flue gas supplying line L13 which returns, to a main flue L11, flue gas obtained after the desulfurization waste water is evaporated and dried, an alkaline agent supplying unit which adds an alkaline agent to a desulfurization waste water line L21, and a pH meter which measures the pH in the desulfurization waste water at locations before and after the alkaline agent supplying unit in the desulfurization waste water line L21, wherein the alkaline agent is added in accordance with a measurement result of a measured pH to cause the desulfurization waste water added with the alkaline agent to have a pH fall within a predetermined pH.
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subjects CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Non-waste water flue gas treatment system and non-waste water flue gas treatment method
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