Improved Sludge Dewaterability for Sequential Ozonation - Aerobic Treatment

被引：15

作者：

Al Momani, F. ^{[1
,2
]}

Schaefer, S. ^{[2
]}

Sievers, M. ^{[2
]}

机构：

[1] Mutah Univ, Fac Engn, Chem & Environm Engn Dept, Mutah 61710, Karak, Jordan

[2] CUTEC Inst GmbH, D-38678 Clausthal Zellerfeld, Germany

来源：

OZONE-SCIENCE & ENGINEERING | 2010年 / 32卷 / 04期

关键词：

Ozone; Biological Treatment; Dewatering; Ozonation; Sludge; DISINTEGRATION; FLOCCULATION;

D O I：

10.1080/01919512.2010.493356

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Chemical treatment processes such as ozonation have mostly been considered as an efficient way for bio-solids minimization. The improvement of sludge dewatering was more a welcoming side-effect in these sequential processes. However, sometimes the loaded ozone dose to the sludge has a negative effect on dewaterability. This work address the most important issue found-the effect of ozone on sludge dewaterability in a single ozonation processes as well as in a sequential ozonation biological processes. It was found that the maximum sludge dewaterability was achieved with an ozone dose of 0.05 gO(3)/gTSS. This value was found to be less than the required ozone dosage that leads to sludge disintegration. However, it was observed that the sequential ozone and aerobic treatment allows further strong improvement of dewatering efficiencies.

引用

页码：252 / 258

页数：7

共 17 条

[1] Potential of activated sludge disintegration [J].

Boehler, M. ;

Siegrist, H. .

WATER SCIENCE AND TECHNOLOGY, 2006, 53 (12) :207-216

[2]

BOEHLER M, 2003, P BIOSOLIDS 2003 WAS, P47

[3]

McCabe W. E., UNIT OPERATIONS CHEM

[4]

NIELSEN PH, 2003, P BIOSOLIDS 2003 WAS, P71

[5]

NOVAK JT, 2003, P BIOSOLIDS 2003 WAS, P103

[6]

ODEGAARD H, 2003, P BIOSOLIDS 2003 WAS, P31

[7] Effects of chemical sludge disintegration on the performances of wastewater treatment by membrane bioreactor [J].

Oh, Young-Khee ;

Lee, Ki-Ryong ;

Ko, Kwany-Baik ;

Yeom, Ick-Tae .

WATER RESEARCH, 2007, 41 (12) :2665-2671

[8]

ONYECHE TI, 2003, EJEAFCHE, V2, P291

[9]

RIED A, 2002, KORRESPONDENZ ABWASS, V49, P648

[10]

SCALES PJ, 2003, P BIOSOLIDS 2003 WAS, P97

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