Effect of extracellular polymeric substances (EPS) on the attachment of activated sludge

被引：21

作者：

Park, YS

Kim, DS ^{[1
]}

Park, TJ

Song, SK

机构：

[1] Catholic Univ Taegu Hyosung, Dept Environm Sci, Kyungbuk 712702, South Korea

[2] Pusan Natl Univ, Dept Environm Engn, Pusan 609735, South Korea

[3] Pusan Natl Univ, Dept Chem Engn, Pusan 609735, South Korea

来源：

BIOPROCESS ENGINEERING | 2000年 / 22卷 / 01期

关键词：

D O I：

10.1007/PL00009092

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Extracellular polymeric substances (EPS) were removed by mechanical (high-speed centrifugation) and chemical (EDTA treatment) methods. The number of attached microorganisms decreased from 33.0 x 10(7) CFU/cm(2) to 17.5 x 10(7) CFU/cm(2) and 12.5 x 10(7) CFU/cm(2), respectively. When the activated sludge was treated with polysaccharide-oxidizing agent (sodium meta periodate) and protease (pronase E), the number of attached microorganisms decreased to 41% and 43.5%, respectively. Transmission electron microphotographs showed that polysaccharide-oxidizing agent and protease treatment caused the removal of filamentous extracellular structures.

引用

页码：1 / 3

页数：3

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