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    Process on biological nitrogen removal technology of ammonia- nitrogen wastewater from ion-type rare earth mines by FAN Cunwen, GUO Peijie, HU Yujia, LIU Xinfu, QIU Qingrong, SU Hao, ZHANG Dachao

    Published 2025-01-01
    “…The typical characteristics of ion-type rare earth mine ammonia-nitrogen wastewater are extreme low C/N, coexistence of ammonia and nitrate, which increased the cost and difficulty of nitrogen removal. Taking Ganzhou rare earth mining area, which had the largest amount of ionic rare earth resources in China, as an example, the water quantity and quality characteristics of ammonia-nitrogen wastewater from ion-type rare earth mines were analyzed. …”
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