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class="NyRight"> <div id="ep9xyz5e6av" class="NyNews_Detail"> <h1 class="NyNewsDetail_Title">進水氨氮高是什么原因</h1> <div id="ep9xyz5e6av" class="NyNewsDetail_Tips"><img src="/skins/541112/images/time2.png" />更新時間：2017-07-13 <img src="/skins/541112/images/eye1.png" />瀏覽次數(shù)：4774</div> <div id="ep9xyz5e6av" class="NyNewsDetail_Con"> <h1><span style="font-family:微軟雅黑"><span style="font-size:24px">進水氨氮高是什么原因</span></span></h1><p> </p><pre><span style="font-family:微軟雅黑"><span style="font-size:16px">水中的氨氮主要是生活污水中含氮有機物受微生物的作用的分解產(chǎn)物，一些工業(yè)廢水如焦化廠和合成氨化肥廠等。氨氮是指水中以游離氨(NH3)和銨離子(NH4+)形式存在的氮。動物性有機物的含氮量一般較植物性有機物為高。同時，人畜糞便中含氮有機物很不穩(wěn)定，容易分解成氨。因此，水中氨氮含量增高時指以氨或銨離子形式存在的化合氮。自然地表水體和地下水體中主要以硝酸鹽氮(NO3)為主，以游離氨(NH3)和銨離子(NH4+)形式存在的氮受污染水體的氨氮叫水合氨，也稱非離子氨。非離子氨是引起水生生物毒害的主要因子，而銨離子相對基本無毒。國家標(biāo)準(zhǔn)Ⅲ類地面水，非離子氨的濃度≤0.02毫克/升。氨氮是水體中的營養(yǎng)素，可導(dǎo)致水富營養(yǎng)化現(xiàn)象產(chǎn)生，是水體中的主要耗氧污染物，對魚類及某些水生生物有毒害。</span></span></pre><p> </p><p><span style="font-family:微軟雅黑"><strong><span style="font-size:18px">德國WTW氨氮在線分析儀, 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