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首先，準(zhǔn)確度方面。中國目前已經(jīng)安裝的<strong>COD在線監(jiān)測儀</strong>獲取數(shù)據(jù)的準(zhǔn)確度還不能普遍達(dá)到作為達(dá)標(biāo)判斷的直接執(zhí)法依據(jù)的要求。</div><div> </div><div> 第二，監(jiān)測頻率差距。由于中國的污染源大部分采用重鉻酸鉀型的<strong>COD在線監(jiān)測儀</strong>，監(jiān)測結(jié)果產(chǎn)生周期一般1-2小時。這對于中國的不穩(wěn)定的排水水質(zhì)來說，頻率過低，極容易遺漏一些臨時沖擊負(fù)荷。</div><div> </div><div> 第三，<strong>COD在線監(jiān)測儀</strong>廢液污染問題。中國目前幾乎所有的COD在線監(jiān)測設(shè)備采用的都是以重鉻酸鉀型的氧化還原滴定法和光度測量法為原理設(shè)計制造的儀器，會產(chǎn)生含汞、鉻和強酸的廢液，存在二次污染隱患。</div> </div> <div id="hvjh9xd" class="ny_PrevNext"> <div id="hvjh9xd" class="Prev">上一篇： <a href="/Article-1085782.html">水質(zhì)檢測儀在城市垃圾污水處理中的應(yīng)用</a></div> <div id="hvjh9xd" class="Next">下一篇： <a href="/Article-1069213.html">在線氨氮自動監(jiān)測儀的性能特點</a></div> </div> </div> </div> </div> </div>   <div id="hvjh9xd" class="pc_foot"> <div id="hvjh9xd" class="pc_ft_main w1200 clear"> <div id="hvjh9xd" class="ft_list"> <ul> <li><b>關(guān)于我們</b><a href="/aboutus.html">公司簡介</a><a href="/news.html">新聞動態(tài)</a><a 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