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<div class="news_publish">時間：2020-05-20 </div> <div class="about_det news_det"> <p class="MsoNormal" style="background:#FFFFFF;"> 去除氨氮的方法 </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b>污水氨氮超標的原因：</b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 1、沒有控制好水力停留的時間； </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 2、硝化反應沒有控制好，如PH值、溫度等； </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 3、曝氣系統設計不符合規范，偏小等； </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 4、已有的工藝設備處理能力有限，無法達到排放標準。 </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 從原因入手，能更好的找出解決辦法 </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b>如何去除氨氮</b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b>改善水力停留時間</b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b><i>1</i></b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 生物硝化曝氣池的水力停留時間也較活性污泥工藝長，因為<span>硝化速率較有機污染物的去除率低得多，因而需要更長的反應時間。至少應在</span>8h以上。 </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b><span>請改變</span>pH、溫度</b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b><i>2</i></b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 盡量<span>控制生物硝化系統的混合液</span>pH大于7.0<span>，因為硝化細菌對</span>pH反應很敏感，在pH為8～9的范圍內，其生物活性最強，當pH<6.0或>9.6時，硝化菌的生物活性將受到抑制并趨于停止； </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <br /> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 冬季時污水處理廠特別是北方地區的污水處理廠出水氨氮超標的現象較為明顯因為硝化細菌對溫度的變化也很敏感，<span>當污水溫度低于</span>15℃時，硝化速率會明顯下降，當污水溫度低于5℃時，其生理活動會完全停止。 </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b>改善曝氣系統</b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b><i>3</i></b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 曝氣系統必須進行控制，因為曝氣系統如果操作不當，曝氣量過小，二次沉淀池可能由于缺氧而發生污泥腐化，即池底污泥厭氧分解，產生大量氣體，促使污泥上浮。 </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b>已有設備處理能力有限，如何處理呢？</b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> <b><i>4</i></b> </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 很多人針對廢水中氨氮的去除都會采用生化處理，但不難發現，氨氮降低到一定程度就無法繼續下降，工程師建議可直接在沉淀池配合藥劑使用，讓污水達標排放。 </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> 投加氨氮去除劑使氨氮氧化為氮氣的方法，目前在污水處理行業得到廣泛的運用！ </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> ◆主要是通過強氧化作用，分解水中的氨氮； </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> ◆加藥后不會產生沉淀物； </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> ◆5分鐘可完全反應，去除率高達96%以上； </p> <p class="MsoNormal" align="justify" style="text-align:justify;background:#FFFFFF;"> ◆由于藥劑的氧化性強，需要在生化后端投加； </p> </div> <div class="share"> <div class="share_box"> <div class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more" style="color:#333">分享到：</a> <a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空間"></a> <a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博"></a> <a href="#" class="bds_tqq" data-cmd="tqq" title="分享到騰訊微博"></a> <a href="#" class="bds_renren" data-cmd="renren" title="分享到人人網"></a> </div> 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