发明名称 |
METHOD AND APPARATUS FOR DEODORIZATION |
摘要 |
PROBLEM TO BE SOLVED: To remove a sulfur odor efficiently by a small amount of a drug and to prevent the diffusion offensive odors and the corrosion of apparatuses by controlling the addition of a peroxide and/or nitrate ions based on the oxidation-reduction potential of a medium. SOLUTION: When sewage retained in a pit 102 in a pump site 101 reaches a definite level, the sewage is pumped up by a pump 111 to be supplied to a sewage treatment plant through a sewage pipe 112. The oxidation-reduction potential of the sewage is measured by oxidation-reduction sensor electrodes 103 and an oxidation-reduction meter 104. A measurement signal output from the meter 104 is input into a controller 105. Simultaneously, a flow rate signal is also input from a flow meter 110. The controller 105 calculates the amount of a drug to be added into the sewage by the signals and controls the actuation of a pump 106 for nitric acid and a pump 107 for adding hydrogen peroxide. In this way, a sulfur odor can be decomposed/removed by a small amount of the drug, and the corrosion of apparatuses can be prevented.
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申请公布号 |
JP2000246233(A) |
申请公布日期 |
2000.09.12 |
申请号 |
JP19990050824 |
申请日期 |
1999.02.26 |
申请人 |
MITSUBISHI GAS CHEM CO INC |
发明人 |
MINATO KAZUYUKI;HAMAGUCHI TAKAYOSHI;OKAZAKI TADASHI;SHIMOMURA TADASHI |
分类号 |
C02F1/00;C02F1/72;C02F3/00;C02F11/00;(IPC1-7):C02F1/00 |
主分类号 |
C02F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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