EFFECT OF ANAEROBIC STABILIZATION OF ACTIVATED-SLUDGE ON ITS PRODUCTION UNDER BATCH CONDITIONS AT VARIOUS SO/XO RATIOS

被引:49
作者
CHUDOBA, P
CHEVALIER, JJ
CHANG, J
CAPDEVILLE, B
机构
关键词
ACTIVATED SLUDGE; ANAEROBIOSIS; BATCH; MASS SPECTROMETER; SUBSTRATE REMOVAL; GROWTH; ATP;
D O I
10.2166/wst.1991.0543
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The effect of anaerobic stabilization of returned activated sludge in a continuous system on biomass production under batch conditions at various S(O)/X(O) ratios was studied. A system without anaerobic sludge stabilization was also operated as a control unit. All experiments were carried out with Toulouse settled wastewater. Biomass growth, substrate removal, oxygen intake and carbon dioxide production were measured using a quadrupole mass spectrometer (Inficon IQ 200) coupled to a 15-liter fermentor (Biolafitte). The results confirmed that one of the most important parameters in batch cultivation is the initial S(O)/S(O) ratio. It was found that anaerobic treatment of activated sludge changed its behaviour during batch cultivation. As a consequence, the observed biomass yield (Y(obs)) decreased with increasing S(O)/X(O) while it remained constant with the sludge from the control unit. In the anaerobic reactor, microorganisms are subject to a physiological shock due to lack of oxygen and food. Under the above conditions, they use ATP as a source of energy. After they are returned to aerobiosis and supplied with exogenous substrate, they rebuild energy reserves at the expense of growth.
引用
收藏
页码:917 / 926
页数:10
相关论文
共 28 条
[1]  
BOHATKA S, 1983, C ADV FERMENTATION, P131
[2]  
CHANG J, 1988, THESIS INSA TOULOUSE
[3]  
CHUDOBA J, 1989, J WATER POLLUT CON F, V61, P367
[4]  
CHUDOBA J, 1969, SCI PAP I CHEM TEC F, V15, P23
[5]  
Clifton C. E., 1957, INTRO BACTERIAL PHYS
[6]   SPECIFIC EFFECT OF LIMITING NUTRIENT ON PHYSIOLOGICAL EVENTS DURING CULTURE GROWTH [J].
ECKER, RE ;
LOCKHART, WR .
JOURNAL OF BACTERIOLOGY, 1961, 82 (04) :511-&
[7]   WAVE-PROPAGATION ON MESFET ELECTRODES AND ITS INFLUENCE ON TRANSISTOR GAIN [J].
HEINRICH, W ;
HARTNAGEL, HL .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1987, 35 (01) :1-8
[8]  
HEINZLE E, 1983, BIO TECHNOLOGY APR, P181
[9]   MICRO SEMIAUTOMATED ANALYSIS OF SURFACE AND WASTEWATERS FOR CHEMICAL OXYGEN DEMAND [J].
JIRKA, AM ;
CARTER, MJ .
ANALYTICAL CHEMISTRY, 1975, 47 (08) :1397-1402
[10]   DIRECT MASS-SPECTROMETRIC DETERMINATION OF RELATIONSHIP BETWEEN RESPIRATION, HYDROGENASE AND NITROGENASE ACTIVITIES IN AZOTOBACTER-CHROOCOCCUM [J].
LESPINAT, PA ;
GERSTER, R ;
BERLIER, Y .
BIOCHIMIE, 1978, 60 (03) :339-341