INFLUENCE OF IMMOBILIZATION SUPPORTS ON THE KINETIC CONSTANTS OF ANAEROBIC-DIGESTION OF CHEESE WHEY

被引：1

作者：

BORJA, R ^{[1
]}

DURAN, MM ^{[1
]}

MARTIN, A ^{[1
]}

LUQUE, M ^{[1
]}

ALONSO, V ^{[1
]}

机构：

[1] INST GRASA & DERIVADOS,E-41012 SEVILLE,SPAIN

来源：

RESOURCES CONSERVATION AND RECYCLING | 1994年 / 10卷 / 04期

关键词：

D O I：

10.1016/0921-3449(94)90021-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Three materials of different structure, sepiolite, saponite and bentonite, assayed as supports for the microorganisms effecting anaerobic digestion, were found to behave differently towards cheese whey wastewater from a kinetic point of view. Assuming the overall anaerobic digestion process to conform to first-order kinetics, the apparent kinetic constant for the digester including sepiolite as support was 2.44 days-1, while that of the digester using the saponite and bentonite support was 2.20 days-1 and 0.70 days-1, respectively. Thus, the support used to immobilize the microorganisms that mediate the process had a marked influence on the constant. This was found significant at 95% confidence level. The yield coefficients, Y(p/s), were 0.336, 0.329 and 0.311 litres CH4STP/g COD for the sepiolite, saponite and bentonite supports, respectively.

引用

页码：329 / 339

页数：11

共 20 条

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