ALGAL FLOCCULATION IN A MAGNESIUM EXCHANGER FLUIDIZED-BED

被引：7

作者：

ELMALEH, S

COMA, J

BORSATO, J

机构：

来源：

WATER SCIENCE AND TECHNOLOGY | 1992年 / 26卷 / 7-8期

关键词：

OXIDATION POND; ALGAE; FLOCCULATION; SEDIMENTATION; FLUIDIZED BED; ION EXCHANGE;

D O I：

10.2166/wst.1992.0612

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effectiveness of the microalgae flocculation by a fluidized bed of magnesium exchanger resin particles was investigated. The results indicated that the total suspended solids abatement could reach 90% at pH 11.5 while the superficial upflow velocity was 30 m/h which corresponds to a residence time through the flocculator less than 1 minute. The abatement remains steady even after exhaustion of the ion exchange capacity while the bed is continuously expanding which makes the resin regeneration easy and lowers the magnesium requirement. The extracted sludge is easily thickened. The destabilized suspension is itself easily concentrated by sedimentation followed by single draining.

引用

页码：1689 / 1696

页数：8

共 7 条

[1] MAGNESIUM INDUCED ALGAL FLOCCULATION IN A FLUIDIZED-BED [J].

ELMALEH, S ;

COMA, J ;

GRASMICK, A ;

BOURGADE, L .

WATER SCIENCE AND TECHNOLOGY, 1991, 23 (7-9) :1695-1702

[2]

ELMALEH S, 1985, MATH MODELS BIOL WAS, P525

[3]

FREIDMAN AA, 1977, J WAT POLLUT CONTROL, V49, P111

[4] CHARACTERIZATION OF THE COHESION OF FLOCS PRODUCED IN FLUIDIZED-BEDS [J].

JABBOURI, A ;

ELMALEH, S ;

MINE, H ;

COMA, J ;

GRASMICK, A .

ENVIRONMENTAL TECHNOLOGY LETTERS, 1989, 10 (02) :167-172

[5] FLOCCULATION IN FLUIDIZED-BEDS - BED EXPANSION AND CALCULATION OF FLOCCULATION PARAMETERS [J].

JABBOURI, A ;

ELMALEH, S ;

GRASMICK, A ;

TREAL, Y ;

COMA, J .

CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL, 1989, 40 (01) :13-20

[6]

OSWALD WJ, 1978, CRC HDB MICROBIOLOGY, P519

[7]

1971, STANDARD METHODS EXA

← 1 →