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来自MSN
3 个月
污水处理除氮大揭秘,轻松搞懂氨氮总氮!
氮在自然界中主要以三种形式存在:分子氮N2,占大气的主要成分;有机氮化合物;无机氮化合物。在水体中,氮主要以有机氮和无机氮形式存在 ...
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