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id="iuo8keysy0m" class="NyNewsdetail_tips">更新時間：2020-06-05 點擊次數(shù)：3463</div> <div id="iuo8keysy0m" class="NyNewsdetail_con"> <p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 影響生物濾池處理效果的因素主要包括：①生物膜的生長;②污水的性質(zhì);③氧;④溫度;⑤pH和毒物。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> ①生物膜中的微生物利用污水中的有機(jī)物及營養(yǎng)物質(zhì)，通過同化作用，合成新的細(xì)胞，使膜不斷生長。對缺乏營養(yǎng)的</span></span><strong><span style="font-size:10.5pt"><span style="font-family:宋體">工業(yè)廢水</span></span></strong><span style="font-size:10.5000pt"><span style="font-family:宋體">系統(tǒng)，為了使膜（</span><strong><span style="font-family:calibri">RO</span></strong></span><span style="font-size:10.5000pt"><span style="font-family:宋體"><strong>反滲透膜</strong>）生長良好，需外加營養(yǎng)，其扮加量與活性污泥系統(tǒng)相類似。厚度薄的生物膜，耗氧速率高、活性強(qiáng)。生長過厚的膜，大部分處于厭氧環(huán)境下，有機(jī)物分解速率慢，分解代謝產(chǎn)物仍為有機(jī)酸、醇等低分子有機(jī)化合物，同時還有臭氣，脫落后有可能造成局部堵塞，影響通氣及處理效果。 </span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> ②由于污水同生物膜接觸時間極短，生物濾池一般適宜于處理分子量小的或較易生物降解的有機(jī)廢水，對難降解的有機(jī)廢水，可以增加濾池的級數(shù)，或在工藝中采取出水回流等措施。 </span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> ③生物膜中的氧從填料間隙之間的空氣中獲得。生物膜的耗氧則受BOD負(fù)荷、生物的數(shù)量、溫度等的影響。為了提高濾池的效果，須注意改進(jìn)填料的形狀，使之既具有一定的強(qiáng)度，又具有盡可能大的空隙率。必要時可采用強(qiáng)制通風(fēng)。 </span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> ④同活性污泥系統(tǒng)相似，生物濾池生化反應(yīng)速率也受溫度的影響，在微生物適宜的溫度范圍內(nèi)，溫度降低，生物的活性和耗氧速率也降低。由于濾池采用自然通風(fēng)充氧，受氣溫影響較大，溫度系數(shù)為 1.02~1. 14，故冬季處理效果極差。 </span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> ⑤同活性污泥法相比，濾池可抗沖擊負(fù)荷和有較強(qiáng)的緩沖能力;同時膜具有一定的厚度及生物成層分布，在受沖擊后恢復(fù)亦較快;但有一定的限度。</span></span><strong><span style="font-size:10.5pt"><span style="font-family:宋體">污水pH</span></span></strong><span style="font-size:10.5000pt"><span style="font-family:宋體">合適范圍為5.5-9.0，以6.5-8.5較佳<strong>。</strong>pH（</span></span><strong><span style="font-size:10.5000pt"><span style="font-family:calibri">PH</span></span></strong><span style="font-size:10.5000pt"><span style="font-family:宋體"><strong>控制器</strong>）</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">的急劇變化與毒物的沖擊都可使生物膜大片死亡、脫落，引起濾池阻塞和處理效果急劇下降。</span></span></p> </div> <div id="iuo8keysy0m" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/szhcy-Article-2246801/">膜技術(shù)的定義</a></li> <li>下一篇：<a href="/szhcy-Article-2243990/">水質(zhì)檢測項目有哪些？</a></li> </ul> </div> </div>   <div id="iuo8keysy0m" class="foot_box"> <div id="iuo8keysy0m" class="foot_t"> <div id="iuo8keysy0m" class="w1200"> <a href="/">網(wǎng)站首頁</a>　|　<a href="/aboutus.html">關(guān)于我們</a>　|　<a href="/products.html">產(chǎn)品中心</a>　|　<a href="/news.html">新聞動態(tài)</a>　|　<a href="/article.html">技術(shù)文章</a>　|　<a href="/honor.html">榮譽(yù)資質(zhì)</a>　|　<a href="/order.html" target="_blank">在線留言</a>　|　<a href="/contact.html">聯(lián)系我們</a> <span><a href="javascript:;" 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