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</div></div> </div> </li></div> </div> </div><div class="container move-monitor" id="content-b4d7e603-dc5c-4019-9525-5a06aa12ada3" data-guid="41b6ab3e-9000-4f4c-af3f-5e0b647f9c81" value="3" style="opacity: 1;"> <div class="row"> <div class="col-md-12 column ui-sortable" data-guid="8bbc0dea-34d9-e518-4d55-5fcb011b693a"><li data-even="15" class="ui-draggable-handle ui-sortable-handle" style="width: 100%; right: auto; bottom: auto; opacity: 1;"> <div class="module-context" data-type="0" data-name="自定義欄目" data-value="0e140772-3f4d-4273-be13-cb29c466b0db" data-guid="25b9f688-32cc-0150-be72-3565ea99aabb" id="box_e0635738-535d-4741-b24a-6eff3eb6d054" style="width: 100%; display: block;"> <div class="module-view" style="width: 100%;"><div> <div class="news_content_head"> <div class="news_content_title"> 奧泉環保膜-生物反應器（MBR）系統設計 </div> <div class="news_content_date"> 發布時間 2020-11-16 </div> </div> <div class="news_content_text"> <p style="text-indent:35px;line-height:150%"><strong><span style="font-family: 'Times New Roman';font-size: 14px">MBR<span style="font-family:宋體">技術應用的工藝流程</span></span></strong></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">l <span style="font-family:宋體">格珊用于去除大顆粒的固體雜質，如生活垃圾、泥砂等，需要定期清理。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">l <span style="font-family:宋體">預處理：根據處理廢水的情況，可以是</span><span style="font-family:Times New Roman">“</span><span style="font-family:宋體">絮凝、沉淀，隔油，水解酸化、兼氧、接觸氧化或者其他必要的物理、化學處理措施</span><span style="font-family:Times New Roman">”</span><span style="font-family:宋體">。采用什么樣的預處理過程，必需根據污水的類型、水質情況等確定。經過預處理，進入</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池的水不含油。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">l MBR<span style="font-family:宋體">池：是好氧生化池，根據進水</span><span style="font-family:Times New Roman">COD</span><span style="font-family:宋體">、</span><span style="font-family:Times New Roman">BOD</span><span style="font-family:宋體">的情況設計</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池需要的停留時間和池子大小。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">對于生活污水來說，一般的設計停留時間推薦為</span>6 – 8<span style="font-family:宋體">小時。</span></span></p><p style="text-indent:35px;line-height:150%"><strong><span style="font-family: 'Times New Roman';font-size: 14px">MBR<span style="font-family:宋體">池的設計</span></span></strong></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">MBR<span style="font-family:宋體">池是該技術應用設計工藝過程的關鍵部分。一方面，在</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池內進行好氧生化反應。另一方面，膜的過濾和截留污泥的作用也在</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池內實現。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">MBR<span style="font-family:宋體">池建議設計成兩格，有利于廢水被均勻地被抽吸出去，使廢水在</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池內不出現短路現象。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">MBR<span style="font-family:宋體">池內固定膜片的支架稱為膜架，膜架一般采用鋼防腐結構。為了使膜片在生化池內有比較好的水流效果，建議按下述尺寸設計膜架的位置。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">膜架與生化池壁距</span> ≥400mm</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">膜架與膜架間距</span> ≥500mm</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">在采用</span>3<span style="font-family:宋體">片膜片為一組的連接方式時，</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池的有效水深設計為</span><span style="font-family:Times New Roman">2800mm – 3000 mm</span><span style="font-family:宋體">為宜。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">采用</span>2<span style="font-family:宋體">片膜片為一組的連接方式時，</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池的有效水深設計為</span><span style="font-family:Times New Roman">2200mm – 2400 mm</span><span style="font-family:宋體">為宜。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">對于小型的</span>MBR<span style="font-family:宋體">項目，采用</span><span style="font-family:Times New Roman">1</span><span style="font-family:宋體">片一組時，有效水深不低于</span><span style="font-family:Times New Roman">1000mm</span><span style="font-family:宋體">。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">MBR<span style="font-family:宋體">部分曝氣系統的設計</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">為了使膜的表面被空氣充分擦洗，膜片的下方要設計足夠的曝氣器。曝氣可以采用微孔曝氣與穿管曝氣的方式。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">以</span>Φ215<span style="font-family:宋體">的微孔曝氣器為例：每組膜片的出水管中心距離</span><span style="font-family:Times New Roman">750mm</span><span style="font-family:宋體">，在膜片底端設置微孔曝氣器時，曝氣頭的中心距離為</span><span style="font-family:Times New Roman">250</span><span style="font-family:宋體">和</span><span style="font-family:Times New Roman">270 mm</span><span style="font-family:宋體">。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"> <span style="font-family:宋體">例如：</span><span style="font-family:Times New Roman">60T/D</span><span style="font-family:宋體">的</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">池，設計選用</span><span style="font-family:Times New Roman">MBR-8</span><span style="font-family:宋體">型膜片</span><span style="font-family:Times New Roman">60</span><span style="font-family:宋體">片的話，設計采用</span><span style="font-family:Times New Roman">20</span><span style="font-family:宋體">組，每組</span><span style="font-family:Times New Roman">3</span><span style="font-family:宋體">片。每相鄰的</span><span style="font-family:Times New Roman">2</span><span style="font-family:宋體">組膜片的中心距離為</span><span style="font-family:Times New Roman">100mm</span><span style="font-family:宋體">，放置膜片的區間，總的平面尺寸為</span><span style="font-family:Times New Roman">2000mm</span><span style="font-family:宋體">長，寬</span><span style="font-family:Times New Roman">810mm</span><span style="font-family:宋體">。需要的曝氣頭數量為 </span><span style="font-family:Times New Roman">2000 ÷ 250 ×3 = 24 </span><span style="font-family:宋體">只。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">曝氣頭的出氣孔與膜片*底層的膜絲之間*好有</span>400-500mm<span style="font-family:宋體">的間距。</span></span></p><p style="text-indent:35px;line-height:150%"><strong><span style="font-family: 'Times New Roman';font-size: 14px"><span style="font-family:宋體">膜架的設計</span></span></strong></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">要使膜片放置在生化池內，必須設計合適的膜架作為支撐和固定用，防止膜片的晃動和移位。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">膜架的平面尺寸根據膜片的組數確定，而高度則與</span>MBR<span style="font-family:宋體">池的總深度有關系。一般它的高度與總深一致，或者略低于</span><span style="font-family:Times New Roman">MBR</span><span style="font-family:宋體">的總深度（低</span><span style="font-family:Times New Roman">10-20mm</span><span style="font-family:宋體">為宜）。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">一個詳細的膜架例圖如附件所示。膜架上主要有膜片的插槽和固定擋板等構筑。</span></span></p><p style="text-indent:35px;line-height:150%"><strong><span style="font-family: 'Times New Roman';font-size: 14px"><span style="font-family:宋體">膜出水</span></span></strong></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">在</span>MBR<span style="font-family:宋體">池中，生化處理后的水經過膜的過濾后排出。實際使用過程中采用自吸式水泵進行抽吸出水。每</span><span style="font-family:Times New Roman">3</span><span style="font-family:宋體">片或者</span><span style="font-family:Times New Roman">2</span><span style="font-family:宋體">片膜片為一組，單獨接一個小的閥門。膜架上所有的膜組的出水口并聯接到一根出水管上。</span></span></p><p style="text-indent:35px;line-height:150%"><strong><span style="font-family: 'Times New Roman';font-size: 14px"><span style="font-family:宋體">膜片的運行和清洗</span></span></strong></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">為了及時將膜表面的沉積物擦洗下來，膜的出水按照抽吸出水</span>12-13<span style="font-family:宋體">分鐘，停</span><span style="font-family:Times New Roman">2-3</span><span style="font-family:宋體">分鐘設計。而停止抽吸出水時，曝氣系統不停。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">系統運行時，采用恒定流量辦法，抽吸負壓可通過電接點式壓力表讀取，膜片操作負壓</span>-0.01 ~ -0.03MPa<span style="font-family:宋體">，當操作負壓超過</span><span style="font-family:Times New Roman">0.05MPa</span><span style="font-family:宋體">時，需對膜片及時進行清洗。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">為了減緩膜片的污染，在運行期間，需要對</span>MBR<span style="font-family:宋體">膜片進行定期的表面沖刷，沖刷時，關閉自吸泵，停止出水，調大曝氣量，對膜表面進行</span><span style="font-family:Times New Roman">2</span><span style="font-family:宋體">小時的沖刷。沖刷周期以</span><span style="font-family:Times New Roman">7</span><span style="font-family:宋體">天</span><span style="font-family:Times New Roman">/</span><span style="font-family:宋體">次為宜。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">清洗方法是將膜片從膜架上取下，用清水對膜片表面進行沖洗，除去膜片表面附著的活性污泥；再用</span>0.5%NaClO<span style="font-family:宋體">溶液浸泡</span><span style="font-family:Times New Roman">1</span><span style="font-family:宋體">小時，殺死附著在膜表面的細菌；然后用</span><span style="font-family:Times New Roman">2-3%</span><span style="font-family:宋體">左右的</span><span style="font-family:Times New Roman">NaOH</span><span style="font-family:宋體">溶液將膜片浸泡</span><span style="font-family:Times New Roman">2</span><span style="font-family:宋體">小時，除去附著在膜片表面的有機物和膠體物質，再用清水對膜片進行沖洗，膜片通量即可恢復。如果膜片使用的當地水質硬度高的話，也可以結合酸洗的方法對膜片進行浸泡清洗。配置</span><span style="font-family:Times New Roman">1-2%</span><span style="font-family:宋體">的鹽酸溶液，浸泡</span><span style="font-family:Times New Roman">2</span><span style="font-family:宋體">小時后，取出，用清水沖洗干凈。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋體">此項工作要求操作人員在清洗過程中要十分小心，以免弄斷膜絲。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"> </span></p><p><br/></p> </div> </div> </div> </div> </li></div> </div> </div><div class="container-fluid move-monitor" id="content-0af06c0b-02bb-400b-af88-7da53afc1407" data-guid="a66b40ab-5b65-498b-ba1d-d8d7a801ecae" value="4"> <div class="row"> <div class="col-md-12 column ui-sortable" 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