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مجله مهندسی شیمی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • pretreatment of coking wastewater by acid out, micro-electrolysis process with in situ electrochemical peroxidation reaction

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 602
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the coking wastewater was pretreated by acid out, micro-electrolysis process with in situ electrochemical peroxidation (ecp) (approximately 0.013–0.015 m h2o2) reaction to reduce the subsequent processing load. the results showed that the acidification process brought about changes not only in organic species of contaminants but also in decrease of cod, nh3single bondn in wastewater through precipitation and some special reactions, resulting in 33% of cod and 9.7% of nh3single bondn removal. then fe/c micro-electrolysis (me) with in situ ecp reaction exhibited a stronger ability to remove the cod and nh3single bondn than that with ex situ fenton reaction, because at this stage, for the two reaction models, the total cod and nh3single bondn removal were 65%, 26% and 43%, 25% in sequence, but in view of the contribution of only fenton reaction to the whole cod and nh3single bondn removal, they were 26%, 4.2% (the former was about six times as strong as the latter) and 9.3%, 8.1%, respectively. so it was reasonable to deduce that there was a prominent synergistic effect on cod removal between the dynamic fe/c micro-electrolysis and the fenton reaction; furthermore, the fenton reaction in in situ ecp process was not only high-efficient but also low-cost. these advantages might mainly be attributed to the technique of dynamic fe/c me with in situ ecp reaction, as it was presumed that the technique might promote some favorable reactions involved, but inhibit those unfavorable ones. the major degradation mechanism of organic contaminants in effluent had been proposed.

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