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生物泡沫的成因及控制方法

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发表于 2013-5-11 10:11:58 | 显示全部楼层 |阅读模式
< style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt" class=MsoNormal align=left><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><IMG border=0 alt="" src="http://bbs.h2o-china.com/images/smilies/default/smile.gif" smilieid="92">&nbsp;出现生物泡沫后的控制对策</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">:<BR>1.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">喷洒水等增加表面搅拌的方法</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">----</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">不能消除泡沫现象的根本原因</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">.<BR>2.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">投加杀菌剂或消泡剂</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">----</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可采用具有强氧化性的杀菌剂</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">:</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">氯</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">臭氧和过氧化物等</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">还有利用聚乙二醇</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">硅酮生产的市售药剂</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以及氯化铁和铜材酸的混合洗药剂等</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">药剂的作用仅能降低泡沫的增长</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">却不能消除泡沫的形成</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">而广泛应用的杀菌剂普遍存在负作用</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><BR><FONT face="Times New Roman">3.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">减低污泥龄</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">-----</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">当污泥停留时间在</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">5~6d</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时间</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">能有效控制丝状菌的生长以避免由其产生的泡沫问题</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">.<BR>4.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">回流厌氧消化池的上清液</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">-------</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">已有试验表明</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">厌氧消化池的上清液能抑制丝状菌的生长</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">能控制嚗气池表面的气泡形成</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">但因其有浓度很高的</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">CODcr</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和氨氮</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可能影响最后出水</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">应慎用</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">.<BR>5.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">向嚗气反应器内投加载体积</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">填料</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">)<BR>6.</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">投加化学药剂</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">:</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">投加聚合氯化铝等阳离子絮凝剂可以有效控制泡沫产生后</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">使混合液表面的稳定泡沫失去稳定性</SPAN><SPAN style="FONT-SIZE: 12pt" lang=EN-US><FONT face="Times New Roman">,</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">进而使丝状菌分散重新进入活性污泥絮体中</SPAN><FONT face="Times New Roman"><SPAN style="FONT-SIZE: 12pt" lang=EN-US>.</SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 宋体" lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o:p></o:p></SPAN></FONT></P><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">诺卡氏菌和</SPAN><SPAN style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US>Microthrix parvicella</SPAN><SPAN style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">与泡沫的出现有关。这些细菌表面疏水,且附着气泡,从而使气泡稳定而造成泡沫现象。</SPAN><SPAN style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US><BR style="mso-special-character: line-break"><BR style="mso-special-character: line-break"></SPAN>
 楼主| 发表于 2013-5-11 10:13:28 | 显示全部楼层
五一前后,生物泡沫自动消失了。为什么?
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