1 . 除氮

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1 . 脫氮的

study on decarburization and denitrogenation of high chromium molten steel under reduced pressure低壓下高鉻鋼液脫碳和脫氮的研究

1 . 生物脫氮

biological method A + O + A is developed through innovation to the original dephenolizing tank to conduct biological denitrogenation and the result is good . the discharging water is recycled to be used .利用原有的生化脫酚池改造為A+O+A生物法，進(jìn)行生物脫氮，效果很好，處理后的出水全部循環(huán)使用，不外排。

1 . 固體脫氮

a small amount of WLDN solid denitrogenation agent was added into lubricant base oil in the process of clay refining and basic nitrogen compounds were removed together with the clay by filtering after the reaction .該工藝是在白土精制過(guò)程中加入少量WLDN固體脫氮?jiǎng)?，反?yīng)完畢后過(guò)濾，則堿性氮化物

1 . 強(qiáng)化脫氮

study on sewage treatment by enhanced denitrogenation subsurface infiltration system ., 強(qiáng)化脫氮地下滲濾系統(tǒng)處理生活污水的研究.