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href="http://www.zhanzhangzhiwang.com/">河南污水處理設備</a></span> <span>來源：www.zhanzhangzhiwang.com</span> <span>發布時間：2020-04-15 06:40:16</span></p> </div> <div id="btexfkh" class="content"> <div> <strong>　　醫院醫療污水中的菌群怎么檢驗：</strong></div> <div> 　　</div> <div> <strong>　　一、采樣方法</strong></div> <div> 　　</div> <div> 　　用采水器或其他滅菌容器采取污水樣１０００毫升，放入滅菌瓶內，如果是經加氯處理的污水，需加１.５％硫代硫酸鈉５毫升中和余氯。</div> <div style="text-align: center;"> 　　<img alt="" src="/uploads/allimg/200415/2-200415144234N2.png" style="width: 500px; height: 361px;" /></div> <div> <strong>　　二、檢驗方法</strong></div> <div> 　　</div> <div> 　　總大腸菌群系指一群需氧及兼性厭氧的革蘭氏陰性無芽孢桿菌在３７℃恒溫箱內，培養２４小時，能使乳糖發酵產酸產氣?？偞竽c菌群數系指每升污水中，所含的總大腸菌群的數目。</div> <div> 　　</div> <div> 　　（一）初發酵試驗：以無菌操作將各盛有３倍濃縮乳糖蛋白胨培養液５毫升的５支發酵管內，各接種污水樣１０毫升，將各盛有單料乳糖蛋白胨培養液約１０毫升５支的發酵管內，各接種污水樣１毫升，再將各盛有單料乳糖蛋白臟培養液約１０毫升的５支發酵管內，各接種１∶１０稀釋的污水樣１毫升（相當于原污水樣０.１毫升）。將此１５支管已接種的發酵管置于３７℃恒溫箱內，培養２４小時。</div> <div> 　　</div> <div> 　?。ǘ┢桨宸蛛x：經培養２４小時后，將產酸產氣及只產酸不產氣的發酵管，分別接種于伊紅美蘭培養基或品紅亞硫酸鈉培養基上，置３７℃恒溫箱培養１８～２４小時，挑選符合下列特征的菌落，取菌落的一小部分，進行涂片、革蘭氏染色、鏡檢。</div> <div> 　　</div> <div> 　?。?伊紅美蘭培養基上的菌落色澤：</div> <div> 　　</div> <div> 　　（１）深紫黑色，具有金屬光澤的菌落；</div> <div> 　　</div> <div> 　?。ǎ玻┳虾谏?，不帶或略帶金屬光澤的菌落；</div> <div> 　　</div> <div> 　?。ǎ常┑霞t色、中心色較深的菌落。</div> <div> 　　</div> <div> 　　２.品紅亞硫酸鈉培養基上的菌落色澤：</div> <div> 　　</div> <div> 　?。ǎ保┳霞t色，具有金屬光澤的菌落；</div> <div> 　　</div> <div> 　?。ǎ玻┥罴t色，不帶或略帶金屬光澤的菌落；</div> <div> 　　</div> <div> 　　（３）淡紅色，中心色較深的菌落。</div> <div> 　　</div> <div> 　　（三）復發酵試驗：涂片、鏡檢的菌落，如為革蘭氏陰性無芽孢桿菌，則挑取上述典型菌落１～３個接種于一支單料乳糖發酵管內，然后置于３７℃恒溫箱內，培養２４小時，產酸產氣者（包括小量產氣）即證實有大腸菌群存在。</div> </p> <p>下一篇：<a href="/xinwen/gs/1153.html">慶祝豫韓榮獲“綠色環保、優質工程”一等獎</a></p> </div> </div> </div> </div> <div id="nxvfyvl" class="clear"></div> ?<div id="pwpepqy" class="footer"> <div id="tlhaijg" class="container"> <div id="ybjrolx" class="foot_left fl"> <div id="vujgvwa" class="foot_cont"> <div id="gjvvdtm" class="site fl"> <i></i> <p>固話：0373-3672099</p> </div> 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