| 摘要 |
A forced oxidation system is provided for a spray tower which employs an alkaline slurry to remove gases and particulate matter from flue gases produced by utility and industrial facilities. The forced oxidation system operates to control the composition of the slurry in order to enhance the efficiency of the scrubbing operation. In the scrubbing operation, the slurry absorbs sulfur dioxide gas which is then reacted within the slurry to form sulfites. The forced oxidation system includes a device for delivering an oxygen-containing gas to the tank for the purpose of oxidizing the sulfites present in the slurry. In addition, the tank is equipped with a device for detecting the degree of oxidation of the slurry within the tank. The detecting device produces an output signal which is relayed to a device for regulating the flow of oxygen-containing gas to the tank, so as to closely regulate the degree to which the sulfites in the slurry are oxidized.
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