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class="page-wrap-contact"> <h4>山東起源環?？萍加邢挢熑喂?/h4> <p style="line-height: normal;">全國服務熱線：4008 519515<br/></p><p style="white-space: normal;">在線咨詢電話：13176770525</p><p style="white-space: normal;">售后服務電話：05373123618 <span style="font-size: 14px;"> </span></p><p style="white-space: normal;"><span style="font-size: 14px;">網址： www.cdchnx.com</span></p><p style="line-height: normal;">地址：山東省濟寧市兗州區大禹北路交叉口西南側100米</p> </div> </div> </div> <div class="page-message-img"> <a href="http://www.cdchnx.com/inquiry/"><img src="http://www.cdchnx.com/data/upload/202007/20200725085610_927.png" alt=""></a> </div> </div> </div> <div class="page-wrap-right"> <div class="xypg-right-content">  <div class="xypg-news-detail"> <h1 class="xypg-detail-title">凈水工藝對飲用水中微生物的影響</h1> <div class="xypg-detail-info-bar"> <div class="detail-info-time"><i class="icon-font icon-shijian"></i>2019-10-15 22:50:21</div> <div class="detail-info-numbers"><i class="icon-font icon-chakan"></i><script src="http://www.cdchnx.com/source/include/browse.php?model=news&id=490"></script>次</div> </div> <div class="xypg-detail-con"><p style="margin-top:7px;margin-bottom:7px;margin-top:auto;margin-bottom:auto;text-align:center;background:rgb(255,255,255)"><strong><span style="font-family: 宋體;font-size: 29px"><span style="font-family:宋體">凈水工藝對飲用水中微生物的影響</span></span></strong></p><p style="margin-top: 7px;margin-bottom: 7px;text-indent: 15px;background: rgb(255, 255, 255)"><span style=";font-family:'Segoe UI';color:rgb(42,51,60);font-size:15px"><span style="font-family:宋體">由于抗生素過量使用造成的細菌耐藥性增強以及耐藥機制多樣化正對當前整個世界范圍內的公共健康造成深刻影響</span>. <span style="font-family:宋體">我國部分地表水源和地下水源已受到抗生素和抗生素耐藥基因的污染，受抗生素污染水環境已成為微生物獲得和傳播耐藥性的理想場所</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">水環境中的抗生素、耐藥基因和攜帶耐藥基因的微生物能穿透傳統凈水工藝進入配水系統</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">人類飲水健康面臨巨大風險</span></span><span style=";font-family:宋體;color:rgb(42,51,60);font-size:15px"><span style="font-family:宋體">。</span></span></p><p style="margin-bottom: 13px;background: rgb(255, 255, 255)"><span style=";font-family:'Segoe UI';color:rgb(42,51,60);font-size:15px"><span style="font-family:宋體">　　有研究表明，抗生素耐藥基因</span>(antibiotic resistance genes,ARGs)<span style="font-family:宋體">可以在環境中持續性殘留，并且可通過基因水平轉移機制與質粒、轉座子、整合子等可移動基因元件結合，在種間甚至屬間進行遷移</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">因此，</span><span style="font-family:Segoe UI">ARGs</span><span style="font-family:宋體">在環境中的遷移、轉化和傳播比抗生素殘留本身對生態環境的危害更大</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">自</span><span style="font-family:Segoe UI">2006</span><span style="font-family:宋體">年</span><span style="font-family:Segoe UI">Pruden</span><span style="font-family:宋體">等將</span><span style="font-family:Segoe UI">ARGs</span><span style="font-family:宋體">作為一種新型的環境污染物提出后，國內外有關其在各種介質中傳播和污染的研究與報道日益增多</span><span style="font-family:Segoe UI">. Xi</span><span style="font-family:宋體">等研究表明在飲用水中可以檢測到耐藥細菌</span><span style="font-family:Segoe UI">(antibiotic resistant bacteria,ARB)</span><span style="font-family:宋體">及耐藥基因的存在，可能對人類及動物健康具有潛在風險</span><span style="font-family:Segoe UI">. Farkas</span><span style="font-family:宋體">等研究表明整合子家族存在于凈水工藝中，且生物膜可作為其傳播媒介</span><span style="font-family:Segoe UI">. Xu</span><span style="font-family:宋體">等通過高通量</span><span style="font-family:Segoe UI">q-PCR</span><span style="font-family:宋體">技術使用</span><span style="font-family:Segoe UI">285</span><span style="font-family:宋體">種不同耐藥基因檢測浙江某凈水工藝對耐藥基因的影響，結果表明耐藥基因在凈水工藝中大量存在并受凈水工藝影響</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">梁惜梅等研究結果表明</span><span style="font-family:Segoe UI">int1</span><span style="font-family:宋體">相對含量和</span><span style="font-family:Segoe UI">ARGs</span><span style="font-family:宋體">總量之間存在顯著相關性</span><span style="font-family:Segoe UI">(P<0.05)</span><span style="font-family:宋體">，</span><span style="font-family:Segoe UI">int1</span><span style="font-family:宋體">在</span><span style="font-family:Segoe UI">ARGs</span><span style="font-family:宋體">的水平傳播中起著非常重要的作用</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">本實驗研究表明在經過生物活性炭濾池后，可培養微生物的耐藥率會出現明顯增強</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">目前，有關凈水工藝過程中耐藥細菌的多重耐藥性研究甚少</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">本</span></span><span style=";font-family:宋體;color:rgb(42,51,60);font-size:15px"><span style="font-family:宋體">實驗</span></span><span style=";font-family:'Segoe UI';color:rgb(42,51,60);font-size:15px"><span style="font-family:宋體">選取氨芐青霉素</span>(Amp)<span style="font-family:宋體">、卡那霉素</span><span style="font-family:Segoe UI">(Kan)</span><span style="font-family:宋體">、利福平</span><span style="font-family:Segoe UI">(Rif)</span><span style="font-family:宋體">、氯霉素</span><span style="font-family:Segoe UI">(Cm)</span><span style="font-family:宋體">以及鏈霉素</span><span style="font-family:Segoe UI">(Str)</span><span style="font-family:宋體">這</span><span style="font-family:Segoe UI">5</span><span style="font-family:宋體">種抗生素，通過分離鑒定的可培養微生物的多重耐藥性，探究凈水工藝對可培養微生物多重耐藥能力的影響</span><span style="font-family:Segoe UI">. </span><span style="font-family:宋體">通過檢測</span><span style="font-family:Segoe UI">3</span><span style="font-family:宋體">種整合子</span><span style="font-family:Segoe UI">(Integron)</span><span style="font-family:宋體">、 </span><span style="font-family:Segoe UI">9</span><span style="font-family:宋體">種轉座子</span><span style="font-family:Segoe UI">(Transposon)</span><span style="font-family:宋體">含量隨工藝變化規律，探討凈水工藝對基因水平轉移元件的影響和耐藥基因在凈水工藝過程中發生基因水平轉移的可能機制</span></span><span style=";font-family:宋體;color:rgb(42,51,60);font-size:15px"><span style="font-family:宋體">。</span></span></p><p style="margin-bottom: 13px;background: rgb(255, 255, 255)"><strong><span style="font-family: 宋體;color: rgb(42, 51, 60);font-size: 24px"><span style="font-family:宋體">詳情請咨詢網站技術人員</span></span></strong><strong><span style="font-family: 'Segoe UI';color: rgb(42, 51, 60);font-size: 24px">　</span></strong></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><br/></p></div> <div class="xypg-detail-tags"> <div class="tags-title"> <h3>標簽</h3> <div class="baidu-share">  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