Title:
湿式排ガス脱硫装置における排水中の化学的酸素要求量の制御方法及び湿式排ガス脱硫装置の殺菌評価方法
Document Type and Number:
Japanese Patent JP7341077
Kind Code:
B2
Abstract:
A method for controlling a chemical oxygen demand in waste water in a wet exhaust gas desulfurization device, the method comprising: step 1 for measuring the chemical oxygen demand in the waste water in the wet exhaust gas desulfurization device; step 2 for discharging the waste water if the measured chemical oxygen demand is not higher than a reference value, and detecting the microbiomass of sulfur-oxidizing bacteria in the waste water by a PCR method using a pair of primers for amplification of a known gene of sulfur-oxidizing bacteria if the measured chemical oxygen demand is higher than the reference value; step 3 for adjusting the amount of an acidic microbicide in accordance with the detected microbiomass so as to perform sterilization; step 4 for detecting the microbiomass in the waste water again after sterilization; and step 5 for discharging the waste water if the microbiomass detected again is not higher than the reference value, and repeating steps 3 and 4 if the microbiomass detected again is higher than the reference value.
Inventors:
Yuki Asai
Yuji Nakajima
Naoki Ogawa
Yuji Nakajima
Naoki Ogawa
Application Number:
JP2020014063A
Publication Date:
September 08, 2023
Filing Date:
January 30, 2020
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B01D53/50; C12Q1/06; C02F1/50; C02F1/76; C12Q1/686
Domestic Patent References:
| JP2019126764A | ||||
| JP2004242578A | ||||
| JP2015188359A | ||||
| JP2007268471A |
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
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