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href='/cpzs/'>產品展示</a> > </span> </div> <div class="mainContect"> <div class="title"> 氨氮廢水常用處理方法這些方法達標 <span> 作者：南京億之源來源：<a href="/">除磷劑</a>廠發布時間：2022-09-13 11:29:45 </span> </div> <div class="con"> <div class="pb"> <div class="pagebox"> <p>　　氨氮含量高會導致水體富營養化，而如果水體富營養化超標之后就成為水體中主要的耗氧污染物，所以廢水氨氮超標之后，必須經過處理達標后才能排放，尤其是大型污水池，其中含有大量的氨，那么氨氮廢水常用處理方法這些方法達標。</p><p style="text-align: center; "><img title="QQ截圖20220913112909" alt="QQ截圖20220913112909" src="/uploadfile/202209/038e4b9c3df2f0e.jpg"><br></p><h3>　　氨氮廢水常用處理方法這些方法達標</h3><p>　　1、吹脫法</p><p>　　利用氨氮的氣相濃度和液相濃度之間的氣液平衡關系，來處理廢水中的氨氮。脫氮效率受溫度、氣液比和pH的影響。</p><p>　　》水溫＞25 ℃</p><p>　　》氣液比控制在3500左右</p><p>　　》pH≈10.5左右</p><p>　　》在脫氮效果不理想的狀態下，很多污水現場會使用氨氮去除劑進行深度處理，可達標排放。</p><p>　　2、膜分離技術</p><p>　　利用膜分離術對氨氮進行脫除，分子不斷通過膜表面吸附、滲透擴散遷移至膜相內側解吸，從而達到分離去除氨氮的目的。運行中需加堿，加堿量與廢水中氨氮濃度成正比。</p><p>　　在實際操作中，隨著氨氮濃度的升高，反滲透裝置所需的能耗就越高，而效率卻是在下降?？梢栽诔鏊恢猛都影钡コ齽?，5分鐘快速去除96%以上的氨氮。</p><p>　　3、生物脫氮</p><p>　　生物脫氮運用比較多的方式是硝化與反硝化，但是目前氨氮廢水處理存在的主要問題是硝化反硝化所需時間較長。</p><p>　　硝化反硝化：將氨氮氧化至亞硝酸鹽氮即進行反硝化。</p><p>　　過程中需要大量的氧氣，曝氣費用成為這種氨氮廢水處理方法的主要開支。</p><p>　　4、強氧化藥劑</p><p>　　藥劑通過強氧化的作用，把氨氮直接氧化成氮氣。直接投加在原本工藝中的沉淀池當中，無需另外增加更改設備和工藝，大大減少處理成本，不挑現場，各工業廢水+生活污水均可使用。</p><h3>　　用什么方法處理高濃度有機廢水</h3><p>　　如今越來越多企業會排放高濃度有機廢水，而高濃度有機廢水一直是水處理行業的難題，更是無法采用單獨的工藝達到理想的處理效果。</p><p>　　特別是這三個企業，排放的高濃度有機廢水更難處理：化工企業、制藥企業和染料企業等。其中成分復雜、有機污染物濃度高、可生化性差等特點更是在它們的身上體現得淋漓盡致，傳統的物化法和生物法是無法將其達到排放標準。</p><p>　　在我們某個高濃度有機廢水處理案例當中，它的高濃度有機廢水有兩股，一個是酯化廢水，COD濃度是30000mg/L，一個是聚合廢水，COD濃度超過了100000mg/L，是將高濃度有機廢水提到一個更高的階段。</p><p>　　而這些廢水也符合了成分復雜和可生化性差的特點：①含有醇類、醛類、酸類以及中間產品等污染物；②pH很低，在2-3之間；③有一定的油脂。</p><p>　　對此，我們處理這類高濃度有機廢水采取了什么方法？喜歡的話，可以點贊，關注，收藏。</p><p>　　組合處理高濃度有機廢水是常見的方法：預處理+生化處理+深度處理，我們這個項目也不例外。</p><p>　　預處理是去處理廢水中的毒害物質、提高可生化性、降低高濃度有機廢水在生化處理的難度等目的。有隔油處理、鐵碳微電解、芬頓氧化法以及混凝沉淀等設備設施，它們是可以將COD降低到可進入生化處理的范圍。</p><p>　　其中鐵碳微電解和芬頓氧化法的聯合工藝是提高可生化性的主要工藝，它是可以在酸性的條件下運行并且兩者合作，減少了藥劑投放成本。</p><p>　　生化處理是利用微生物的作用，將其有機物進行降低，由于該項目的高濃度有機廢水還有氨氮污染物，需要采用缺氧和好氧的結合處理。</p><p>　　實際有水解酸化池、UASB反應池、缺氧池、好氧池和二沉池等設備實施，水解酸化池和UASB反應池都是可以在有機高濃度的情況下運行，耐沖擊負荷性好。</p> 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