Improvement of biological activity by low energy ultrasound assisted bioreactors

被引：75

作者：

Schläfer, O ^{[1
]}

Sievers, M ^{[1
]}

Klotzbücher, H ^{[1
]}

Onyeche, TI ^{[1
]}

机构：

[1] Clausthaler Umwelttech Inst, D-38678 Clausthal Zellerfeld, Germany

来源：

ULTRASONICS | 2000年 / 38卷 / 1-8期

关键词：

activated biomass; improved wine fermentation; process-water recycling; ultrasound assisted bioreactor;

D O I：

10.1016/S0041-624X(99)00132-8

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Bioreactors are broadly applied in biotechnology and wastewater treatments. The so-called advanced bioreactor systems should be optimised in a more compact, more efficient and more effective form. One method of optimisation is the improvement of the solid-liquid interface of the sludge flocs and the mass transfer rate of gas and nutrients in the liquid. This could be obtained by the intake of ultrasound in the bioreactor at a frequency of 25 kHz and a power input of 0.3 W l(-1). An increase in the biological activity of the process investigated with alternating ultrasound as well as a decrease without ultrasound were measured. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：711 / 716

页数：6