PREDICTION OF ACTIVATED-SLUDGE SEDIMENTATION BASED ON SLUDGE INDEXES

被引：12

作者：

HULTMAN, B ^{[1
]}

LOWEN, M ^{[1
]}

KARLSSON, U ^{[1
]}

LI, PH ^{[1
]}

MOLINA, L ^{[1
]}

机构：

[1] SWEDISH CEMENT & CONCRETE RES INST,S-10044 STOCKHOLM,SWEDEN

来源：

WATER SCIENCE AND TECHNOLOGY | 1991年 / 24卷 / 07期

关键词：

ACTIVATED SLUDGE; FILAMENT LENGTH; SLUDGE INDEXES; SLUDGE PROPERTIES; SLUDGE VOLUME; SEDIMENTATION; VOLATILE FRACTION;

D O I：

10.2166/wst.1991.0182

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Present requirements on nitrogen removal in Sweden make it necessary to increase the sludge concentration in the aeration basin of the activated sludge process. A project has started with the purpose to evaluate the possibilities to use different sludge indices to predict activated sludge sedimentation. Based on literature and experimental studies, it is shown that the diluted sludge volume index (DSVI), the sludge quality index (SQI) and the stirred specific volume index (SSVI3.5) are suitable to predict the sedimentation performance. The traditional sludge volume index (SVI) is not as useful and should therefore be replaced. However, it is possible to recalculate old data on SVI to values of SQI. The SQI value is approximately equal to DSVI and proportional to the SSVI3.5 value. Pre-precipitation and pre-sedimentation seem to increase the values of the sludge indices.

引用

页码：33 / 42

页数：10

共 17 条

[1]

ADOLFSSON T, 1978, VAV278 SWED WAST WAT

[2]

DAIGGER GT, 1985, J WATER POLLUT CON F, V57, P859

[3]

Dick R.I., 1972, P 27 IND WASTE C, P33

[4]

Dick R.I., 1970, J SANITARY ENGINEERI, V96, P423

[5]

DICK RI, 1969, J WATER POLLUT CON F, V41, P1285

[6]

EKAMA GA, 1986, WATER POLLUT CONTROL, V85, P101

[7]

FITCH B, 1976, J WATER POLLUT CON F, V48, P1979

[8] A FURTHER EXAMINATION OF MASS FLUX THEORY AS APPLIED TO ACTIVATED-SLUDGE SETTLEMENT [J].

FORSTER, CF .

BIOTECHNOLOGY LETTERS, 1982, 4 (06) :381-386

[9]

HULTMAN B, 1987, IAWPRC C BUDAPEST, V1

[10]

MATTSSON B, 1988, AVD FOR VA TEKNIK HO

← 1 2 →