亚洲爆乳高清一区二区三区_[資料] 活性污泥法日常運行7大指標_汕頭市龍源環(huán)?？萍脊?/title> <meta name="keywords" content="汕頭水處理,汕頭污水處理,潮陽(yáng)污水處理,[資料] 活性污泥法日常運行7大指標,汕頭市龍源環(huán)?？萍脊?> <meta name="description" content="[資料] 活性污泥法日常運行7大指標-汕頭市龍源環(huán)?？萍脊?? ? ? 活性污泥法是好氧系統日常運行的核心，其處理效果受曝氣效果、停留時(shí)間、供風(fēng)量、污泥濃度等諸多因素影響。今天就為大家梳理一下這些主要因素，以及對系統的影響。 1. 感官對活性污泥狀況的觀(guān)察用肉眼觀(guān)察活性污泥的顏色是否是正常的茶褐色，同時(shí)用鼻子聞活性污泥的氣味是否正常（稍具泥土的腥味）。若是污泥發(fā)黑發(fā)臭，通常是曝氣充氧不足；若是污泥色澤較淡，通常是曝氣充氧過(guò)度或負荷過(guò)低。 2. 觀(guān)察曝氣效果曝氣效果主要是觀(guān)察曝氣池液面的翻騰情況和泡沫的變化情況。成團大氣泡上升是曝氣系統局部堵塞的表現或曝氣裝置有破損，而液面翻騰不均勻往往是存在不曝氣死角所致。泡沫增多以及顏色發(fā)生變化，說(shuō)明進(jìn)水水質(zhì)和進(jìn)水負荷等運行狀態(tài)發(fā)生了變化。 3. 曝氣時(shí)間曝氣時(shí)間指污水在曝氣池內的平均停留時(shí)間（HRT），也是活性污泥微生物氧化分解有機污染物的時(shí)間。處理效果不僅與要處理的污水水量有關(guān)，更與水質(zhì)和采用的工藝方法密切相關(guān)，曝氣時(shí)間應以使處理后的排水達到國家有關(guān)標準為依據，通常要根據成功運行經(jīng)驗和實(shí)際運行來(lái)確定。處理城市污水的傳統活性污泥法，曝氣時(shí)間為4－8h，而處理高濃度工業(yè)廢水時(shí)，曝氣時(shí)間在10~20h，最長(cháng)可達50h以上。 4. 曝氣量（供氣量）供氣電耗占整個(gè)污水處理系統電耗的50－60%，因此供氣量的調整要極其慎重。確定供氣量的主要依據是保證曝氣池出口處的DO濃度在0.8~2mg/l以上，其次要滿(mǎn)足混合液混合攪拌的需要。供氣量的確定比較復雜，其不僅受系統工藝設計的影響，還受曝氣池進(jìn)水水質(zhì)、溫度、曝氣時(shí)間、MLSS濃度、溶解氧含量等因素影響，需要根據一定時(shí)期內所取得的運行數據綜合確定。處理城市污水的傳統活性污泥法的供氣量一般為進(jìn)水量的3－7倍。對于進(jìn)水水質(zhì)、水量相對穩定的大型城市污水處理廠(chǎng)，每年春秋各調整一次，即在水溫開(kāi)始上升的4－5月份降低供氣量。而在水溫開(kāi)始下降的10－11月份提高供氣量。對于水質(zhì)、水量波動(dòng)較大的工業(yè)廢水處理廠(chǎng)，要在綜合分析各種化驗數據后，每天對供氣量進(jìn)行確認或調整。 5. 剩余污泥排放隨著(zhù)處理水量的不斷增加，曝氣池內的活性污泥量也會(huì )不斷增長(cháng)，MLSS值和SV值都會(huì )升高。為了保證曝氣池內MLSS值相對穩定，必須將增加的污泥量及時(shí)排出，排放的剩余污泥量應大致等于污泥的增長(cháng)量，排放量過(guò)大或過(guò)小都會(huì )導致曝氣池內MLSS的波動(dòng)。剩余污泥排放量與采用的活性污泥法及具體的進(jìn)水水質(zhì)有關(guān)，在沒(méi)有經(jīng)驗的情況下，可大致按進(jìn)水量的1%左右排放剩余污泥，確切適宜的排放值應根據一定時(shí)期的實(shí)際運行結果來(lái)確定。 6. 回流污泥量調節回流污泥量的目的也是為了保證曝氣池內MLSS值相對穩定，而污水處理廠(chǎng)的回流量一般也是相對固定的?；钚晕勰喾ǖ幕亓魑勰酀舛纫话憬橛?－10g/l。純氧曝氣活性污泥法的回流污泥濃度可超過(guò)15g/l，回流污泥沉降比一般在90%左右。因此在進(jìn)水水質(zhì)水量比較穩定的情況下，實(shí)際上是根據每日測定的SV值為依據，通過(guò)調整剩余污泥的排放量來(lái)達到維持污泥回流量固定的目的。在進(jìn)水水量發(fā)生大的波動(dòng)時(shí)，就需要調整回流量，以保證曝氣池內MLSS值不因進(jìn)水量的增大或減少而出現大的波動(dòng)。 7. 觀(guān)察二沉池應經(jīng)常觀(guān)察二沉池泥面的高低、上清液的透明程度及液面和出水中懸浮物的情況。正常運行時(shí)二沉池上清液的厚度應不少于0.5－0.7m。如果泥面上升，往往說(shuō)明污泥沉降性能差；如果上清液渾濁，說(shuō)明進(jìn)水負荷過(guò)高，污水凈化效果差；如果上清液透明但帶有小污泥絮片，說(shuō)明污泥解絮；如果液面不連續大塊污泥上浮，說(shuō)明池底局部厭氧或出現反硝化；如果大范圍污泥上浮，說(shuō)明污泥可能中毒。"> <meta name='viewport' content='width=1440' /> <link href="http://static203.yun300.cn/public/css/cecc/animate.css,iconfont.css,base.css?v=1658905237000&tenantId=83631&viewType=1" rel="stylesheet" type="text/css" /> <link href="http://static203.yun300.cn/css/site_impt.css?v=1658905237000&tenantId=83631&viewType=1" rel="stylesheet" type="text/css" /> <link 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</div> <div id="umyogwk" class="e_title e_AssistInfo-001 p_time"> <div id="40owwgu" class="font"><i class="iconfont"></i> 2021/04/30 11:42 </div> </div> </div> </div> <div id="maiq4mu" class="e_box e_box-000 p_InteractionInfo">       </div> </div>  <div id="0a0oyiw" class="e_line e_ArticleHline-001 p_ArticleHline"></div>    <div id="ewi0amo" class="e_box e_box-000 p_content ">  <div id="4iyikse" class="e_box e_box-001 p_Atlas" data-innerdismoveable> <div> </div> </div>  <article class="e_HtmlEditor e_HtmlEditor-001 p_articles"> </article> </div> <div id="4y66cou" class="js_infoDetail_content item_hide"><p style="margin:0pt 0pt 0.0001pt; text-align:justify"> <span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma"> 活性污泥法是好氧系統日常運行的核心，其處理效果受曝氣效果、停留時(shí)間、供風(fēng)量、污泥濃度等諸多因素影響。今天就為大家梳理一下這些主要因素，以及對系統的影響。</font></span></span></span></span></span></span><br> <br> <b><span id="kaiuiuk" class="15" style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#444444"><span style="letter-spacing:0.0000pt"><span style="font-weight:bold"><span style="text-transform:none"><span style="font-style:normal">1. 感官對活性污泥狀況的觀(guān)察</span></span></span></span></span></span></span></b><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">用肉眼觀(guān)察活性污泥的顏色是否是正常的茶褐色，同時(shí)用鼻子聞活性污泥的氣味是否正常（稍具泥土的腥味）。若是污泥發(fā)黑發(fā)臭，通常是曝氣充氧不足；若是污泥色澤較淡，通常是曝氣充氧過(guò)度或負荷過(guò)低。</font></span></span></span></span></span></span><br> <br> <b><span id="kwiaoow" class="15" style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#444444"><span style="letter-spacing:0.0000pt"><span style="font-weight:bold"><span style="text-transform:none"><span style="font-style:normal">2. 觀(guān)察曝氣效果</span></span></span></span></span></span></span></b><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">曝氣效果主要是觀(guān)察曝氣池液面的翻騰情況和泡沫的變化情況。成團大氣泡上升是曝氣系統局部堵塞的表現或曝氣裝置有破損，而液面翻騰不均勻往往是存在不曝氣死角所致。泡沫增多以及顏色發(fā)生變化，說(shuō)明進(jìn)水水質(zhì)和進(jìn)水負荷等運行狀態(tài)發(fā)生了變化。</font></span></span></span></span></span></span><br> <br> <b><span id="umkwmuu" class="15" style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#444444"><span style="letter-spacing:0.0000pt"><span style="font-weight:bold"><span style="text-transform:none"><span style="font-style:normal">3. 曝氣時(shí)間</span></span></span></span></span></span></span></b><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">曝氣時(shí)間指污水在曝氣池內的平均停留時(shí)間（</font>HRT），也是活性污泥微生物氧化分解有機污染物的時(shí)間。處理效果不僅與要處理的污水水量有關(guān)，更與水質(zhì)和采用的工藝方法密切相關(guān)，曝氣時(shí)間應以使處理后的排水達到國家有關(guān)標準為依據，通常要根據成功運行經(jīng)驗和實(shí)際運行來(lái)確定。處理城市污水的傳統活性污泥法，曝氣時(shí)間為4－8h，而處理高濃度工業(yè)廢水時(shí)，曝氣時(shí)間在10~20h，最長(cháng)可達50h以上。</span></span></span></span></span></span><br> <br> <b><span id="0oiaw0g" class="15" style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#444444"><span style="letter-spacing:0.0000pt"><span style="font-weight:bold"><span style="text-transform:none"><span style="font-style:normal">4. 曝氣量（供氣量）</span></span></span></span></span></span></span></b><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">供氣電耗占整個(gè)污水處理系統電耗的</font>50－60%，因此供氣量的調整要極其慎重。確定供氣量的主要依據是保證曝氣池出口處的DO濃度在0.8~2mg/l以上，其次要滿(mǎn)足混合液混合攪拌的需要。供氣量的確定比較復雜，其不僅受系統工藝設計的影響，還受曝氣池進(jìn)水水質(zhì)、溫度、曝氣時(shí)間、MLSS濃度、溶解氧含量等因素影響，需要根據一定時(shí)期內所取得的運行數據綜合確定。</span></span></span></span></span></span><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">處理城市污水的傳統活性污泥法的供氣量一般為進(jìn)水量的</font>3－7倍。對于進(jìn)水水質(zhì)、水量相對穩定的大型城市污水處理廠(chǎng)，每年春秋各調整一次，即在水溫開(kāi)始上升的4－5月份降低供氣量。而在水溫開(kāi)始下降的10－11月份提高供氣量。對于水質(zhì)、水量波動(dòng)較大的工業(yè)廢水處理廠(chǎng)，要在綜合分析各種化驗數據后，每天對供氣量進(jìn)行確認或調整。</span></span></span></span></span></span><br> <br> <b><span id="a40kusm" class="15" style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#444444"><span style="letter-spacing:0.0000pt"><span style="font-weight:bold"><span style="text-transform:none"><span style="font-style:normal">5. 剩余污泥排放</span></span></span></span></span></span></span></b><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">隨著(zhù)處理水量的不斷增加，曝氣池內的活性污泥量也會(huì )不斷增長(cháng)，</font>MLSS值和SV值都會(huì )升高。為了保證曝氣池內MLSS值相對穩定，必須將增加的污泥量及時(shí)排出，排放的剩余污泥量應大致等于污泥的增長(cháng)量，排放量過(guò)大或過(guò)小都會(huì )導致曝氣池內MLSS的波動(dòng)。剩余污泥排放量與采用的活性污泥法及具體的進(jìn)水水質(zhì)有關(guān)，在沒(méi)有經(jīng)驗的情況下，可大致按進(jìn)水量的1%左右排放剩余污泥，確切適宜的排放值應根據一定時(shí)期的實(shí)際運行結果來(lái)確定。</span></span></span></span></span></span><br> <br> <b><span id="46s0e0s" class="15" style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#444444"><span style="letter-spacing:0.0000pt"><span style="font-weight:bold"><span style="text-transform:none"><span style="font-style:normal">6. 回流污泥量</span></span></span></span></span></span></span></b><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">調節回流污泥量的目的也是為了保證曝氣池內</font>MLSS值相對穩定，而污水處理廠(chǎng)的回流量一般也是相對固定的?；钚晕勰喾ǖ幕亓魑勰酀舛纫话憬橛?－10g/l。純氧曝氣活性污泥法的回流污泥濃度可超過(guò)15g/l，回流污泥沉降比一般在90%左右。因此在進(jìn)水水質(zhì)水量比較穩定的情況下，實(shí)際上是根據每日測定的SV值為依據，通過(guò)調整剩余污泥的排放量來(lái)達到維持污泥回流量固定的目的。在進(jìn)水水量發(fā)生大的波動(dòng)時(shí)，就需要調整回流量，以保證曝氣池內MLSS值不因進(jìn)水量的增大或減少而出現大的波動(dòng)。</span></span></span></span></span></span><br> <br> <b><span id="saqykoa" class="15" style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#444444"><span style="letter-spacing:0.0000pt"><span style="font-weight:bold"><span style="text-transform:none"><span style="font-style:normal">7. 觀(guān)察二沉池</span></span></span></span></span></span></span></b><br> <span style="font-size:10.5000pt"><span style="font-family:Tahoma"><span style="color:#808080"><span style="letter-spacing:0.0000pt"><span style="text-transform:none"><span style="font-style:normal"><font face="Tahoma">應經(jīng)常觀(guān)察二沉池泥面的高低、上清液的透明程度及液面和出水中懸浮物的情況。正常運行時(shí)二沉池上清液的厚度應不少于</font>0.5－0.7m。如果泥面上升，往往說(shuō)明污泥沉降性能差；如果上清液渾濁，說(shuō)明進(jìn)水負荷過(guò)高，污水凈化效果差；如果上清液透明但帶有小污泥絮片，說(shuō)明污泥解絮；如果液面不連續大塊污泥上浮，說(shuō)明池底局部厭氧或出現反硝化；如果大范圍污泥上浮，說(shuō)明污泥可能中毒。</span></span></span></span></span></span></span></span></p> </div>   <div id="4y0cgg6" class="e_box e_box-000 p_assist"> <div id="0c00yi0" class="e_box e_box-000 p_KeywordBox "> <div id="weymigu" class="e_title e_name-001 p_nameA "> <div id="iweo00w" class="font"><i class="iconfont"></i> <span id="kisgwm4" class="i_KeywordBox">關(guān)鍵詞：</span></div> </div> <div id="yk00q6i" class="e_box e_box-000 p_keywords">  <a class="e_link e_link-000 p_LinkB"> <div 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