Exhaust gas treatment system and exhaust gas treatment method
A technology for waste gas treatment and waste gas, which is applied in chemical instruments and methods, separation methods, weighing, etc., can solve the problems of increased cost, increased environmental impact of fly ash treatment costs, and increased cost of acid gas treatment agents. effect of cost
Pending Publication Date: 2022-04-12
KURITA WATER INDUSTRIES LTD
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[0004] However, if such an excessive amount of acid gas treatment agent is added, the cost of the acid gas treatment agent increases, and the unused acid gas treatment agent remaining in the treatment of acid gas is vacuumed together with fly ash, and the amount of landfill of fly ash In turn, the amount of fly ash treatment agent added to immobilize and remove heavy metals contained in fly ash also increases, not only the cost of acid gas treatment agent increases, but also further fly ash treatment costs and environmental impact also increase the tendency, therefore, various methods of properly controlling the addition amount of acid gas treatment agent have been studied
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[0045] Hereinafter, specific embodiments of the present invention will be described in detail, but the present invention is not limited to the following embodiments at all, and can be implemented with appropriate changes within the scope of the purpose of the present invention.
[0046]
[0047] The exhaust gas treatment system of this embodiment includes: an exhaust gas treatment unit that processes acid gas contained in exhaust gas; a treatment agent supply unit that supplies an acid gas treatment agent to the exhaust gas treatment unit; and a treated exhaust gas analysis unit that measures A treated acid gas concentration (C1) which is the concentration of acid gas contained in the waste gas after treatment in the waste gas treatment part; and, a treatment agent addition management part which calculates the treatment The amount of acid gas treatment agent added so that the concentration of acid gas after treatment (C1) measured in the post-exhaust gas analysis unit is alwa...
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Abstract
Provided is an exhaust gas treatment system for treating an acidic gas contained in an exhaust gas generated during incineration treatment of waste with an acidic gas treatment agent. When the acid gas is sufficiently treated, the treatment cost and the influence on the environment caused by adding a redundant acid gas treating agent during the treatment can be further reduced. This exhaust gas treatment system is provided with an exhaust gas treatment unit, a treatment agent supply unit, a post-treatment exhaust gas analysis unit, and a treatment agent addition management unit, and is characterized by being further provided with: an incinerated material supply amount measurement unit that is positioned upstream of the exhaust gas treatment unit and that measures the supply amount of an incinerated material; a treatment agent supply amount measurement unit that measures the supply amount of the acidic gas treatment agent supplied from the treatment agent supply unit; and a server unit that determines whether or not the relationship between the post-treatment acid gas concentration and the management concentration is appropriate on the basis of the results obtained by collecting and analyzing information data from the post-treatment exhaust gas analysis unit, the treatment agent supply amount measurement unit, and the incinerated material supply amount measurement unit.
Description
technical field [0001] The present invention relates to a waste gas treatment system and a waste gas treatment method, and in more detail relates to: using an acid gas treatment agent to treat the acid gas contained in the waste gas generated in the incineration of waste. Sufficient treatment edges can further reduce the treatment cost caused by adding excess acid gas treatment agent, the waste gas treatment system and the waste gas treatment method that have an impact on the environment. Background technique [0002] Exhaust gas from incineration of waste is an acidic gas containing hydrogen chloride and sulfur oxides. Conventionally, such waste gas has been treated with an acid gas treatment agent such as slaked lime and baking soda, and then the fly ash, which is a solid matter, has been removed by a vacuum cleaner such as a bag filter before being discharged from the chimney. [0003] However, the properties of objects to be incinerated, such as municipal waste and indu...
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IPC IPC(8): B01D53/40B01D53/81G01G19/22G01N33/00
CPCB01D53/83B01D53/50B01D53/52B01D53/68
Inventor山崎武志米山健太郎水品惠一
OwnerKURITA WATER INDUSTRIES LTD