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style="text-indent: 2em;"><br/></span></p><p><span style="text-indent: 2em;"> 污水處理概述：</span></p><p style="text-indent: 2em;">污水處理是為了使生活污水和工業污水達到可以排放的水質要求，并且做好相關的凈化過程。<a href="http://www.yzhydxny.com/cpzx/product.php?class2=264" target="_blank" title="">污水處理設備</a>工程是目前我國乃至世界都非常重視的項目，雖然水是可再生的資源，但是由于人們對于水源的不愛惜，導致水源出現了污染。污水處理工程就是為了改變這些污水的狀態，使其可以繼續為我們所用。處理污水的方法很多，一般可歸納為物理法、化學法和生物法等。</p><p style="text-indent: 2em;">污水處理的等級劃分：</p><p style="text-indent: 2em;">現代污水處理技術，按處理程度劃分，可分為一級、二級和三級處理，一般根據水質狀況和處理后的水的去向來確定污水處理程度?！?/p><p style="text-indent: 2em;">一級處理：主要去除污水中呈懸浮狀態的固體污染物質，物理處理法大部分只能完成一級處理的要求。經過一級處理的污水，BOD一般可去除30%左右，達不到排放標準。一級處理屬于二級處理的預處理?！?/p><p style="text-indent: 2em;">二級處理：主要去除污水中呈膠體和溶解狀態的有機污染物質（BOD，COD物質），去除率可達90%以上，使有機污染物達到排放標準，懸浮物去除率達95%出水效果好?！?/p><p style="text-indent: 2em;">三級處理：進一步處理難降解的有機物、氮和磷等能夠導致水體富營養化的可溶性無機物等。主要方法有生物脫氮除磷法，混凝沉淀法，砂濾法，活性炭吸附法，離子交換法和電滲析法等。</p><p style="text-indent: 2em;">龍記環保污水處理工程特點：</p><p style="text-indent: 2em;">1. 占地面積小，工期短。</p><p style="text-indent: 2em;">2. 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