SBR法处理工业废水中有机负荷对污泥膨胀的影响.pdfVIP

第 20 卷第 2 期 环 　境 　科 　学 　学 　报 Vol . 20 ,No . 2 2000 年 3 月 AC TA SCIEN T IA E CIRCU M STAN T IA E Mar . ,2000 ( ) 文章编号 2000 020 12905 　　　中图分类号 :X703 　　　文献标识码 :A SBR 法处理工业废水中有机负荷对污泥膨胀 的影响 ( 王淑莹 ,高春娣 ,彭永臻 ,周 　利 ,丁 　峰　 哈尔滨建筑大学市政环境工程学院 , 哈尔滨 　 150090) 摘要 :活性污泥中丝状菌与絮状菌的竞争生长使污泥的性状发生变化. 有机负荷对污泥膨胀的影响一直有两种完全相反的 ( ) 说法 ,我们对此作了专门研究 ,试验结果表明:当反应器中溶解氧 DO 充足时 ,低有机负荷易引起污泥膨胀 ,提高有机负荷 能有效的控制膨胀 ;高负荷下 ,引起污泥膨胀的原因往往是 DO 浓度不足 ,而提高 DO 浓度则能使污泥膨胀得到控制. 这一结 果也解释了高有机负荷发生污泥膨胀的实质原因. 关键词 :有机负荷 ;污泥膨胀 ;溶解氧 ;丝状菌 ;絮状菌 Infl uence of organic loading on sl udge bul king ( WAN G Shuying , GAO Chundi ,PEN G Yongzhen ,ZHOU Li ,D IN G Feng 　 College of Municipal and Environ mental Engineering ,Harbin Universit y of Architecture and Engineering ,Harbin 150008) Abstract :In the activated sludge p rocess ,the character of activated sludge will be changed by competitive growth of floc forming bacteria and filamentous bacteria . There are two different argument s about the effect of organic loading on sludge bulking all long ,therefore we have had specific research on it . The experimental result show s that if low organic loading condition can be maintained ,bulking will occur ,however the bulking will be controlled effectively in the condi tion of increasing organic loading. Under high organic loading condition ,usually ,the owing to the insufficient DO ,bulk ing may occur , but ,if DO concentration is increased ,bulking will be controlled. In addition ,the result explains the rea son why sludge bulking occur s at high organic loading. . Keywords :Organic loading ;sludge